Heat pump water module and heat pump equipment

Abstract

The invention provides a heat pump water module and heat pump equipment, and relates to the field of heat pumps. The heat pump water module comprises a box body and at least one waterway system arranged in the box body, and the waterway system comprises a cold water pipeline and a hot water pipeline; the hot water pipeline comprises a hot water inlet pipeline, an electric heater and a hot water outlet pipeline which are detachably and fixedly connected, and the front portion of the connecting portion of the two ends of the electric heater is not shielded by the pipeline. According to the heat pump water module, the electric heater is arranged, so that the auxiliary heating effect is achieved, water can be rapidly heated to the needed temperature, and the requirements of customers are better met; moreover, after parts in front of the electric heater, such as a front panel, are disassembled or opened, the two ends of the electric heater can be conveniently disassembled and assembled, so that the electric heater is disassembled from the position between the hot water inlet pipeline and the hot water outlet pipeline, or the electric heater is installed between the hot water inlet pipeline and the hot water outlet pipeline; and the overhaul and maintenance efficiency can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of heat pump technology, and more specifically, to a heat pump water module and a heat pump device. Background Technology

[0002] Heat pump equipment includes a heat pump unit, a water module, and terminal devices. The heat pump unit heats or cools the water delivered from the water module, and the water module then delivers the heated or cooled water to the terminal devices to meet users' needs for domestic hot water, heating, etc.

[0003] In existing technologies, electric heaters are sometimes installed in the hot water pipes to prevent insufficient heating by the heat pump unit. However, the electric heaters in existing heat pump water modules are not easy to disassemble and install, making maintenance and repair difficult. Furthermore, existing heat pump water modules are mostly wall-mounted and typically have bottom-mounted outlets, which cannot meet the needs of various installation scenarios. When users have multiple usage needs, multiple heat pump water modules are usually installed to supply hot or cold water to multiple terminal devices, which occupies a significant amount of space. Summary of the Invention

[0004] The first objective of this invention is to provide a heat pump water module to solve the technical problem that the electric heater of the heat pump water module is inconvenient to disassemble and assemble in the prior art.

[0005] The heat pump water module provided by the present invention includes a housing and at least one water circuit system disposed in the housing. The water circuit system includes a cold water pipe and a hot water pipe. The hot water pipe includes a detachably fixed hot water inlet pipe, an electric heater and a hot water outlet pipe. There are no pipes obstructing the connection parts at both ends of the electric heater.

[0006] The heat pump water module provided by this invention can produce the following beneficial effects:

[0007] The heat pump water module provided by this invention, after being connected to the heat pump host and the terminal device, can transport water from the terminal device to the heat pump host through the cold water pipeline of the heat pump water module. After the heat pump host heats or cools the water, the hot water pipeline of the heat pump water module then transports the hot or cold water to the terminal device.

[0008] The heat pump water module provided by this invention features an electric heater that acts as an auxiliary heat source, rapidly heating the water to the required temperature to better meet customer needs. Furthermore, since there are no obstructions in front of the connection points at both ends of the electric heater in the hot water pipeline, the front components, such as the front panel, can be easily removed or opened to conveniently detach and install the electric heater between the hot water inlet and outlet pipelines. This significantly improves maintenance efficiency.

[0009] Furthermore, the inlet end of the electric heater is connected to the outlet end of the hot water inlet pipe and fixedly connected by a first clamp, with no pipe obstruction in front of the fastener of the first clamp; and / or, the outlet end of the electric heater is connected to the inlet end of the hot water outlet pipe and fixedly connected by a second clamp, with no pipe obstruction in front of the fastener of the second clamp. The electric heater inlet end and the hot water inlet pipe outlet end are fixedly connected by the first clamp, and the electric heater outlet end and the hot water outlet pipe inlet end are fixedly connected by the second clamp. The components are readily available and very easy to assemble and disassemble.

[0010] Furthermore, the first clamp is a knob-type clamp, with no pipe obstruction in front of the knob; and / or, the second clamp is a knob-type clamp, with no pipe obstruction in front of the knob. The clamps can be tightened or loosened by turning the knobs to engage or disengage the two ends of the electric heater from the corresponding pipes, allowing for easy and quick operation with one hand.

[0011] Furthermore, the inner peripheral wall of the first clamp is provided with a first annular groove, the outer peripheral wall of the water inlet end of the electric heater is provided with a first annular protrusion, and the outer peripheral wall of the water outlet end of the hot water inlet pipe is provided with a second annular protrusion. The first annular protrusion and the second annular protrusion are connected and both are locked in the first annular groove; and / or, the inner peripheral wall of the second clamp is provided with a second annular groove, the outer peripheral wall of the water outlet end of the electric heater is provided with a third annular protrusion, and the outer peripheral wall of the water inlet end of the hot water outlet pipe is provided with a fourth annular protrusion. The third annular protrusion and the fourth annular protrusion are connected and both are locked in the second annular groove.

[0012] Furthermore, the end face of the first annular protrusion away from the second annular protrusion is a first annular inclined surface, and from the top to the bottom of the first annular protrusion, the first annular inclined surface is inclined in a direction away from the second annular protrusion; and / or, the end face of the second annular protrusion away from the first annular protrusion is a second annular inclined surface, and from the top to the bottom of the second annular protrusion, the second annular inclined surface is inclined in a direction away from the first annular protrusion;

[0013] And / or, the end face of the third annular protrusion away from the fourth annular protrusion is a third annular inclined surface, and from the top to the bottom of the third annular protrusion, the third annular inclined surface is inclined in a direction away from the fourth annular protrusion; and / or, the end face of the fourth annular protrusion away from the third annular protrusion is a fourth annular inclined surface, and from the top to the bottom of the fourth annular protrusion, the fourth annular inclined surface is inclined in a direction away from the third annular protrusion.

[0014] In this technical solution, the setting of each annular inclined surface plays a guiding role for the clamp, enabling the groove and protrusion to engage more quickly and accurately. Moreover, the setting of the annular inclined surface makes the tightness of the clamp adjustable, thereby ensuring that the electric heater and the corresponding pipeline are tightly fixed together, ensuring the reliability of the connection and the sealing of the connection.

[0015] Furthermore, the cold water pipeline includes a detachably fixedly connected cold water inlet pipeline, a water pump assembly, and a cold water outlet pipeline, with no pipeline obstructing the connection points at both ends of the water pump assembly. Because there is no pipeline obstruction in front of the connection points at both ends of the water pump assembly in the cold water pipeline, by removing or opening components such as the front panel of the housing, the two ends of the water pump assembly can be easily disassembled and assembled. This allows the water pump assembly to be removed from between the cold water inlet pipeline and the cold water outlet pipeline, or installed between them, greatly improving the efficiency of inspection and maintenance.

[0016] Furthermore, the water pump assembly is fixedly connected to the cold water inlet pipe via a first nut, with no pipe obstruction in front of the first nut; and / or, the water pump assembly is fixedly connected to the cold water outlet pipe via a second nut, with no pipe obstruction in front of the second nut. The water pump assembly can be easily assembled and disassembled by tightening and loosening the nuts.

[0017] Furthermore, the waterway system comprises at least two systems, namely a first waterway system and a second waterway system;

[0018] The cold water pipeline of the first water system is the first cold water pipeline; the cold water inlet pipeline of the first cold water pipeline is the first cold water inlet pipeline; the water pump assembly of the first cold water pipeline is the first water pump assembly; and the cold water outlet pipeline of the first cold water pipeline is the first cold water outlet pipeline.

[0019] The cold water pipeline of the second water system is the second cold water pipeline; the cold water inlet pipeline of the second cold water pipeline is the second cold water inlet pipeline; the water pump assembly of the second cold water pipeline is the second water pump assembly; and the cold water outlet pipeline of the second cold water pipeline is the second cold water outlet pipeline.

[0020] The first water pump assembly and the second water pump assembly are arranged adjacent to each other, and are located in the lower or middle part of the housing.

[0021] Under this technical solution, since the water pump assembly is relatively heavy, this design can lower the center of gravity of the entire water module, making the entire water module more stable. The first and second cold water pipes occupy less space in the vertical direction, so the height of the container can be reduced, which also lowers the center of gravity of the entire water module. This improves the overall structural compactness and stability of the water module, while also enhancing its adaptability to various usage scenarios. It also helps to increase the container capacity, thereby reducing transportation costs.

[0022] Furthermore, the hot water pipe of the first water system is a first hot water pipe; the hot water inlet pipe of the first hot water pipe is a first hot water inlet pipe, and the electric heater of the first hot water pipe is a first electric heater; the first electric heater is vertically positioned, with its inlet end located at its bottom; the first hot water inlet pipe includes a first straight pipe, a first bend pipe, and a U-shaped pipe connected in sequence, with the opening of the U-shaped pipe facing upwards and arranged in the front-back direction; the first electric heater is located behind the first straight pipe, and the inlet end of the first electric heater is connected to the outlet end of the U-shaped pipe and is lower than the first straight pipe.

[0023] In this technical solution, the first and second water pumps are placed horizontally in the lower or middle part of the tank, and the first electric heater is located behind the third horizontal pipe section of the first cold water pipe and the third horizontal pipe section of the second cold water pipe. This not only effectively utilizes the space behind the two third horizontal pipe sections and improves the compactness of the overall structure, but also reduces the height of the tank compared with the solution where all electric heaters are placed horizontally.

[0024] Furthermore, the hot water pipe of the second water system is a second hot water pipe; the hot water inlet pipe of the second hot water pipe is a second hot water inlet pipe, the electric heater of the second hot water pipe is a second electric heater, and the hot water outlet pipe of the second hot water pipe is a second hot water outlet pipe; the second hot water inlet pipe is horizontally positioned, and the second electric heater is horizontally positioned between the second hot water inlet pipe and the second hot water outlet pipe.

[0025] Under this technical solution, the second hot water pipe is basically set horizontally, so it occupies little space and can effectively control the height of the tank.

[0026] Furthermore, the hot water outlet pipe of the first hot water pipe is a first hot water outlet pipe, which includes a fixedly connected first hot water outlet pipe section, a three-way valve, and a second hot water outlet pipe section; the three-way valve includes a valve body and an actuator, the inlet end and the outlet end of the valve body are respectively connected to the first hot water outlet pipe section and the second hot water outlet pipe section, and the other outlet end of the valve body is connected to the second hot water outlet pipe;

[0027] The actuator is located on the top of the valve body, and there is a disassembly gap between the actuator and the top plate of the housing, the value of which ranges from 10mm to 30mm.

[0028] Under this technical solution, when one set of terminal devices, such as the domestic water tank, reaches the required temperature, while another set of terminal devices, such as the heating terminal, has a higher demand but cannot meet it, the first and second water circuit systems can work together to provide a heat or cold source to the heating terminal by adjusting the three-way valve, thus quickly meeting the user's heating or cooling needs. Sufficient clearance between the actuator and the top plate of the housing facilitates easier installation and removal of the actuator.

[0029] The second objective of this invention is to provide a heat pump device to solve the technical problem that the electric heater of the heat pump water module is inconvenient to disassemble and assemble in the prior art.

[0030] The heat pump device provided by this invention includes a heat pump main unit, a terminal device, and the aforementioned heat pump water module, wherein the heat pump water module is connected between the heat pump main unit and the terminal device. This heat pump device possesses all the beneficial effects of the aforementioned heat pump water module, and therefore will not be elaborated further here. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0032] Figure 1 One of the partial structural front views of a heat pump water module provided in an embodiment of the present invention;

[0033] Figure 2 This is a second partial front view of the heat pump water module provided in an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of the structure of each pipe inside the casing of the heat pump water module provided in an embodiment of the present invention;

[0035] Figure 4A partial three-dimensional structural schematic diagram of a heat pump water module provided in an embodiment of the present invention;

[0036] Figure 5 A schematic diagram of the structure of the electric heater of the heat pump water module after disassembly provided in an embodiment of the present invention;

[0037] Figure 6 An exploded view of a partial structure of the hot water pipe of a heat pump water module provided in an embodiment of the present invention;

[0038] Figure 7 A schematic diagram of the structure of a heat pump water module after disassembly, provided in an embodiment of the present invention;

[0039] Figure 8 An exploded view of a partial structure of the cold water pipeline of a heat pump water module provided in an embodiment of the present invention;

[0040] Figure 9 This is a cross-sectional view of the water pump assembly of a heat pump water module provided in an embodiment of the present invention.

[0041] Figure 10 A cross-sectional view of the first electric heater of the heat pump water module provided in an embodiment of the present invention;

[0042] Figure 11 This is a cross-sectional view of the second electric heater of the heat pump water module provided in an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100 - Box body; 120 - Rear wall panel; 130 - Left side panel; 140 - Right side panel; 150 - Top panel; 160 - Bottom panel;

[0045] 200 - First cold water pipe; 210 - First cold water inlet pipe; 211 - First horizontal pipe section; 212 - First bend; 213 - First longitudinal pipe section; 214 - Second bend; 215 - Second horizontal pipe section; 220 - T-type tee connector; 221 - First limiting protrusion; 230 - First nut; 231 - First body; 232 - First limiting ring; 233 - First limiting surface; 240 - First water pump; 241 - First screw Thread; 242 - External thread; 250 - First check valve; 251 - Internal thread; 252 - Second thread; 260 - Second nut; 261 - Second body; 262 - Second limiting ring; 263 - Second limiting surface; 270 - First cold water outlet pipe; 271 - Third horizontal pipe section; 272 - Third bend; 273 - Second longitudinal pipe section; 274 - Fourth bend; 275 - Fourth horizontal pipe section; 2751 - Second limiting protrusion;

[0046] 300 - First hot water pipe; 310 - First hot water inlet pipe; 311 - First straight pipe; 312 - First bend; 313 - U-shaped pipe; 314 - Second annular protrusion; 3141 - Second annular slope; 3142 - Second union; 320 - First electric heater; 321 - First annular protrusion; 3211 - First annular slope; 322 - Third annular protrusion; 3221 - Third annular slope; 330 - First hot water outlet pipe; 331 - First hot water outlet pipe section; 3311 - Fourth annular protrusion; 3312 - Fourth annular slope; 3313 - Third union; 332 - Three-way valve; 3321 - Valve body; 3322 - Actuator; 333 - Second hot water outlet pipe section; 340 - First clamp; 341 - First annular groove; 350 - Second clamp; 351 - Second annular groove;

[0047] 400 - Second cold water pipeline; 410 - Second cold water inlet pipeline; 420 - Filter; 430 - First Y-type tee connector; 440 - Second water pump; 450 - Second check valve; 470 - Second cold water outlet pipeline;

[0048] 500 - Second hot water pipe; 510 - Second hot water inlet pipe; 520 - Second electric heater; 530 - Second hot water outlet pipe; 531 - Third hot water outlet pipe section; 532 - Second Y-type tee connector; 533 - Fourth hot water outlet pipe section;

[0049] 600 - First connecting pipe; 610 - Inclined vertical pipe; 620 - Connecting bend;

[0050] 700 - Second connecting pipe; 710 - Horizontal pipe section; 720 - Vertical pipe section;

[0051] 810 - Safety valve; 820 - Pressure gauge; 830 - Target flow switch. Detailed Implementation

[0052] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0053] This embodiment provides a heat pump water module and a heat pump device. The components of the heat pump water module, such as the electric heater, are very easy to disassemble and assemble, which can greatly improve the efficiency of inspection and maintenance. The heat pump device includes the above-mentioned heat pump water module, and also includes a heat pump host and a terminal device. The heat pump water module is connected between the heat pump host and the terminal device.

[0054] The heat pump water module provided in this embodiment is described in detail below:

[0055] like Figure 1 and Figure 2 As shown, the heat pump water module provided in this embodiment includes a housing 100 and at least one water system installed in the housing 100. The water system includes a cold water pipe and a hot water pipe. The hot water pipe includes a detachably fixed hot water inlet pipe, an electric heater, and a hot water outlet pipe. There are no pipes obstructing the connection parts at both ends of the electric heater.

[0056] In this embodiment, there are two water systems: a first water system and a second water system. Each water system can be connected to a terminal device. The terminal device connected to the first water system is called the first terminal device, and the terminal device connected to the second water system is called the second terminal device. The first and second terminal devices are different. In practical applications, the first terminal device is preferably a domestic water tank, and the second terminal device is preferably at least one of the following: an air conditioner, underfloor heating, and a radiator assembly. The specific first and second terminal devices can be configured according to actual conditions, and will not be elaborated further in this embodiment. It should be noted that in other embodiments of this application, the water system is not limited to two systems, but can also be one, three, or four, etc., depending on specific needs.

[0057] The heat pump water module provided by this invention, after being connected to the heat pump host and the terminal device, can transport water from the terminal device to the heat pump host through the cold water pipeline of the heat pump water module. After the heat pump host heats or cools the water, the hot water pipeline of the heat pump water module then transports the hot or cold water to the terminal device.

[0058] The electric heater serves as an auxiliary heat source, quickly heating the water to the required temperature to better meet customer needs. Furthermore, since there are no obstructions in front of the connection points at both ends of the electric heater in the hot water pipeline, removing or opening components such as the front panel allows for easy disassembly and assembly of both ends. This enables the electric heater to be removed from the hot water inlet and outlet pipelines, or installed between them, significantly improving maintenance efficiency.

[0059] In this embodiment, both the hot water outlet and cold water inlet pipes pass through the right side panel 140 of the housing 100 and are configured to connect to the terminal device; both the hot water inlet and cold water outlet pipes pass through the left side panel 130 of the housing 100 and are configured to connect to the heat pump unit. Of course, in other embodiments of this application, the hot water outlet and cold water inlet pipes may also both pass through the left side panel 130 of the housing 100, while the hot water inlet and cold water outlet pipes both pass through the right side panel 140 of the housing 100. With this configuration, the heat pump unit and the terminal device can be connected to both sides of the housing 100, which is very convenient for after-sales installation and connection. The cold water pipe of the heat pump water module can transport water from the terminal device to the heat pump unit. After the heat pump unit heats or cools the water, the hot water pipe of the heat pump water module then transports the hot or cold water to the terminal device. Moreover, this setup allows for both wall-mounted and floor-standing installations, greatly expanding its applicability.

[0060] Specifically, in this embodiment, as Figures 4 to 6 as well as Figure 10 and Figure 11 As shown, the inlet of the electric heater connects to the outlet of the hot water inlet pipe and is fixedly connected by a first clamp 340, with no pipe obstruction in front of the fastener of the first clamp 340; the outlet of the electric heater connects to the inlet of the hot water outlet pipe and is fixedly connected by a second clamp 350, with no pipe obstruction in front of the fastener of the second clamp 350. The electric heater inlet and the hot water inlet pipe are fixedly connected by the first clamp 340, and the electric heater outlet and the hot water outlet pipe inlet are fixedly connected by the second clamp 350. The components are readily available and very easy to assemble and disassemble.

[0061] It should be noted that in other embodiments of this application, only the inlet end of the electric heater and the outlet end of the hot water inlet pipe may be connected by clamps, while the outlet end of the electric heater and the inlet end of the hot water outlet pipe may be fixedly connected by flanges or other structures; or only the outlet end of the electric heater and the inlet end of the hot water outlet pipe may be connected by clamps, while the inlet end of the electric heater and the outlet end of the hot water inlet pipe may be connected by flanges or other structures. Of course, in other embodiments of this application, both ends of the electric heater may also be detachably fixedly connected to the corresponding pipes via flanges. That is, as long as the electric heater is detachable and easily disassembled, this application does not impose specific limitations on the connection structure at both ends.

[0062] Specifically, in this embodiment, the first clamp 340 is a knob-type clamp, with no pipe obstruction in front of the knob; the second clamp 350 is a knob-type clamp, with no pipe obstruction in front of the knob. The clamps can be tightened or loosened by turning the knobs to connect the two ends of the electric heater to the corresponding pipes, allowing for easy and quick operation with one hand.

[0063] Specifically, in this embodiment, the inner peripheral wall of the first clamp 340 is provided with a first annular groove 341, the outer peripheral wall of the water inlet end of the electric heater is provided with a first annular protrusion 321, and the outer peripheral wall of the water outlet end of the hot water inlet pipe is provided with a second annular protrusion 314. The first annular protrusion 321 and the second annular protrusion 314 are connected and both are locked in the first annular groove 341; the inner peripheral wall of the second clamp 350 is provided with a second annular groove 351, the outer peripheral wall of the water outlet end of the electric heater is provided with a third annular protrusion 322, and the outer peripheral wall of the water inlet end of the hot water outlet pipe is provided with a fourth annular protrusion 3311. The third annular protrusion 322 and the fourth annular protrusion 3311 are connected and both are locked in the second annular groove 351.

[0064] It should be noted that the second annular protrusion 314 can be directly installed at the outlet end of the hot water inlet pipe, or a second union 3142 can be used, such as... Figure 10 As shown, it is a hollow T-type connector. The second union 3142 is placed outside or inside the outlet end of the hot water inlet pipe, and the radial protrusion of the second union 3142 forms the second annular protrusion 314. Similarly, the fourth annular protrusion 3311 can be directly set at the inlet end of the hot water outlet pipe, or a third union 3313 can be used, which is a hollow T-type connector. The third union 3313 is placed outside or inside the inlet end of the hot water outlet pipe, and the radial protrusion of the third union 3313 forms the fourth annular protrusion 3311.

[0065] Specifically, in this embodiment, as Figure 10 As shown, the end face of the first annular protrusion 321 away from the second annular protrusion 314 is a first annular inclined surface 3211, and from the top to the bottom of the first annular protrusion 321, the first annular inclined surface 3211 is inclined in a direction away from the second annular protrusion 314; the end face of the second annular protrusion 314 away from the first annular protrusion 321 is a second annular inclined surface 3141, and from the top to the bottom of the second annular protrusion 314, the second annular inclined surface 3141 is inclined in a direction away from the first annular protrusion 321. In other embodiments of this application, only one of the first annular inclined surface 3211 and the second annular inclined surface 3141 may be provided.

[0066] Continue as Figure 10As shown, the end face of the third annular protrusion 322 away from the fourth annular protrusion 3311 is a third annular inclined surface 3221, and from the top to the bottom of the third annular protrusion 322, the third annular inclined surface 3221 is inclined in a direction away from the fourth annular protrusion 3311; the end face of the fourth annular protrusion 3311 away from the third annular protrusion 322 is a fourth annular inclined surface 3312, and from the top to the bottom of the fourth annular protrusion 3311, the fourth annular inclined surface 3312 is inclined in a direction away from the third annular protrusion 322. In other embodiments of this application, only one of the third annular inclined surface 3221 and the fourth annular inclined surface 3312 may be provided.

[0067] The above-mentioned annular inclined surfaces all serve as guides for the clamps, enabling the grooves and protrusions to engage more quickly and accurately. Furthermore, the annular inclined surfaces allow for adjustment of the clamp's tightness, ensuring a tight and secure connection between the electric heater and the corresponding pipeline, guaranteeing the reliability and sealing of the connection.

[0068] To further ensure the sealing of the connection, such as Figure 10 As shown, a sealing ring (not shown in the figure) is provided on the opposite end face of the first annular protrusion 321 and the second annular protrusion 314. A sealing ring (not shown in the figure) is also provided on the opposite end face of the third annular protrusion 322 and the fourth annular protrusion 3311. In order to limit the sealing ring, at least one of the two opposite end faces is also provided with an annular groove.

[0069] In addition to the advantages of easy disassembly of the electric heater, the heat pump water module provided in this embodiment also has a water pump in its cold water pipeline, and the water pump is also very easy to disassemble and assemble.

[0070] Specifically, Benru Figure 2 As shown in the embodiment, the cold water pipeline includes a detachably fixed cold water inlet pipeline, a water pump assembly, and a cold water outlet pipeline. There are no obstructions to the connection points at both ends of the water pump assembly. Because there are no obstructions to the connection points at both ends of the water pump assembly in the cold water pipeline, the two ends of the water pump assembly can be easily disassembled and assembled by removing or opening components such as the front panel of the housing 100. This allows the water pump assembly to be detached from the cold water inlet pipeline and the cold water outlet pipeline, or installed between them, greatly improving the efficiency of inspection and maintenance.

[0071] Specifically, in this embodiment, as Figure 2As shown, the water pump assembly is fixedly connected to the cold water inlet pipe via a first nut 230, with no pipe obstruction in front of the first nut 230; the water pump assembly is fixedly connected to the cold water outlet pipe via a second nut 260, with no pipe obstruction in front of the second nut 260. With this configuration, the water pump assembly can be easily installed and removed by simply tightening the nuts.

[0072] It should be noted that in other embodiments of this application, the pump assembly may have only one inlet or only one outlet connected to the corresponding pipeline via nuts, while the other end is connected via other detachable fixed connections. For example, only the inlet of the pump assembly may be connected to the cold water inlet pipeline via nuts, while the outlet of the pump assembly may be fixedly connected to the cold water outlet pipeline via flanges or similar structures. Of course, in other embodiments of this application, both ends of the pump assembly may also be detachably fixedly connected to the corresponding pipeline via flanges. That is, as long as the pump is detachable and easily disassembled, this application does not impose specific limitations on the connection structure at both ends.

[0073] More specifically, in this embodiment, as Figure 2 As shown, the cold water inlet pipe is equipped with a connecting joint, and the outlet end of the connecting joint is connected to the inlet end of the water pump assembly via a first nut 230. The connecting joint includes two-way and three-way connectors, which can be selected according to specific needs, such as... Figure 2 As shown, in the first water system, the inlet of the water pump assembly is connected to a T-joint. The first end of the T-joint is connected to the inlet of the water pump assembly via a first nut 230, the second end is connected to the cold water inlet pipe, and the third end is configured to connect to other cold water pipes (such as the cold water inlet pipe of the second water system). In the second water system, the inlet of the water pump assembly is connected to a two-way connector. The outlet of the two-way connector is connected to the inlet of the water pump assembly via a first nut 230, and the inlet of the two-way connector is connected to the outlet of the cold water inlet pipe. By setting a connecting connector at the outlet of the cold water inlet pipe, easy installation and disassembly between the cold water inlet pipe and the water pump assembly are ensured, while also eliminating the need to modify the outlet of the cold water inlet pipe, which is very convenient.

[0074] In this embodiment, as Figure 8 and Figure 9As shown, the first nut 230 includes a first body 231 and a first limiting ring 232 fixed to the first body 231. The first limiting ring 232 has a first limiting surface 233. The connecting connector is provided with a first limiting protrusion 221, which is annular. The outer diameter of the first limiting protrusion 221 is smaller than the inner diameter of the first body 231 and larger than the minimum inner diameter of the first limiting ring 232. The water pump assembly is provided with a first thread 241. The internal thread of the first nut 230 is threadedly connected to the first thread 241, and the first limiting surface 233 abuts tightly against the first limiting protrusion 221. With this configuration, when it is necessary to disassemble the water inlet end of the water pump assembly, it is only necessary to unscrew the first nut 230 from the first thread 241, which is very quick and convenient. Moreover, the first nut 230 will not fall off due to the blocking effect of the first limiting protrusion 221.

[0075] It should be noted that in other embodiments of this application, the positions of the first limiting protrusion 221 and the first thread 241 can also be interchanged. In that case, the first nut 230 is sleeved on the water inlet end of the water pump assembly. That is, the water inlet end of the water pump assembly is provided with the first limiting protrusion 221, the water outlet end of the connecting connector is provided with the first thread 241, and the first nut 230 is sleeved on the water inlet end of the water pump assembly, thus fixing the water inlet end of the water pump assembly and the water outlet end of the connecting connector together. This is also very convenient for disassembly and assembly.

[0076] It should also be noted that the first limiting protrusion 221 can be directly set at the water outlet end of the connecting connector, or a first swivel connector can be used, which is a hollow T-shaped connector. The first swivel connector is fixedly set inside or outside the water outlet end of the connecting connector, and the radial protrusion of the first swivel connector forms the first limiting protrusion 221.

[0077] In this embodiment, as Figure 8 and Figure 9 As shown, the water pump assembly includes a water pump and a check valve. The water pump provides power for water flow, and the check valve, also known as a one-way valve, prevents backflow. The water pump is connected to a connecting connector, and the check valve is connected to the cold water outlet pipe. The inlet end of the check valve has an internal thread 251, and the outlet end of the water pump has an external thread 242. The two are fixedly connected by the external thread 242 and the internal thread 251. Of course, in other embodiments of this application, the outlet end of the water pump may have an internal thread 251, while the inlet end of the check valve may have an external thread 242. In this case, the outlet end of the water pump and the inlet end of the check valve can still be fixedly connected by the external thread 242 and the internal thread 251. In this configuration, when it is necessary to disassemble the water pump, the water pump assembly can be removed from the cold water pipe, and then the water pump and the check valve can be separated. Of course, in other embodiments of this application, the inlet end of the check valve and the outlet end of the water pump can also be directly connected by the second nut 260. In that case, when it is necessary to disassemble the water pump, only the water pump needs to be disassembled.

[0078] It should be noted that in other embodiments of this application, the water pump assembly may also include a water pump and its accessories.

[0079] like Figure 8 and Figure 9 As shown, the second nut 260 includes a second body 261 and a second limiting ring 262 fixed to the second body 261. The second limiting ring 262 has a second limiting surface 263. The cold water outlet pipe is provided with a second limiting protrusion 2751, which is annular. The outer diameter of the second limiting protrusion 2751 is smaller than the inner diameter of the second body 261 and larger than the minimum inner diameter of the second limiting ring 262. The check valve is provided with a second thread 252. The internal thread of the second nut 260 is threadedly connected to the second thread 252, and the second limiting surface 263 is in close contact with the second limiting protrusion 2751. With this configuration, when it is necessary to disassemble the water pump, the second nut 260 can be unscrewed from the second thread 252, that is, the water pump assembly can be disassembled from the cold water pipe, and then the water pump and the check valve can be separated. Moreover, the second nut 260 will not fall off due to the blocking effect of the second limiting protrusion 2751.

[0080] In other embodiments of this application, the positions of the second limiting protrusion 2751 and the second thread 252 can also be interchanged. In this case, the second nut 260 is sleeved outside the outlet end of the check valve. That is, the outlet end of the check valve is provided with the second limiting protrusion 2751, the inlet end of the cold water outlet pipe is provided with the second thread 252, and the second nut 260 is sleeved outside the outlet end of the check valve, thus fixing the inlet end of the cold water outlet pipe and the outlet end of the check valve together. This is also very convenient for disassembly and assembly.

[0081] In this embodiment, as Figure 2 As shown, the pump assemblies of the first and second water circuit systems are arranged adjacent to each other, one above the other, and located in the lower or middle part of the housing 100, near the bottom plate 160. Because the pump assemblies are relatively heavy, this arrangement lowers the center of gravity of the entire water module, making the entire water module more stable.

[0082] Specifically, in this embodiment, as Figure 2 As shown, and in combination Figure 3 and Figure 8As shown, in this embodiment, the cold water pipeline of the first water system is the first cold water pipeline 200; the cold water inlet pipeline of the first cold water pipeline 200 is the first cold water inlet pipeline 210, the water pump assembly of the first cold water pipeline 200 is the first water pump assembly, and the cold water outlet pipeline of the first cold water pipeline 200 is the first cold water outlet pipeline 270; the cold water pipeline of the second water system is the second cold water pipeline 400; the cold water inlet pipeline of the second cold water pipeline 400 is the second cold water inlet pipeline 410, the water pump assembly of the second cold water pipeline 400 is the second water pump assembly, and the cold water outlet pipeline of the second cold water pipeline 400 is the second cold water outlet pipeline 470; the first water pump assembly and the second water pump assembly are arranged adjacent to each other, and are located in the lower or middle part of the housing 100, close to the bottom plate 160. With this configuration, the first cold water pipe 200 and the second cold water pipe 400 occupy less space in the vertical direction, which can reduce the height of the container 100 and lower the center of gravity of the entire water module. This improves the overall compactness and stability of the water module, enhances its adaptability to various usage scenarios, and also increases the container capacity, thereby reducing transportation costs.

[0083] Specifically, in this embodiment, as Figure 3 and Figure 8 As shown, the first cold water inlet pipe 210 and the second cold water inlet pipe 410 have basically the same direction. Each cold water inlet pipe, from its inlet end to its outlet end, includes a first horizontal pipe section 211, a first bend 212, a first vertical pipe section 213, a second bend 214, and a second horizontal pipe section 215 in sequence. The first vertical pipe section 213 extends from the first bend 212 away from the front panel to the second bend 214. The first cold water outlet pipe 270 and the second cold water outlet pipe 470 have the same direction. The water pipe includes, from its outlet to its inlet, a third horizontal pipe section 271, a third bend 272, a second vertical pipe section 273, a fourth bend 274, and a fourth horizontal pipe section 275. The second vertical pipe section 273 extends from the third bend 272 away from the front panel to the fourth bend 274. The first water pump assembly is horizontally positioned and connected between the second horizontal pipe section and the fourth horizontal pipe section of the first cold water pipe 200. The second water pump assembly is horizontally positioned and connected between the second horizontal pipe section and the fourth horizontal pipe section of the second cold water pipe 400.

[0084] In the above setting form, from the top-down perspective, both the first cold water pipeline 200 and the second cold water pipeline 400 are roughly in a "Ji" shape or an "Ω" shape. The space occupied by the first cold water pipeline 200 and the second cold water pipeline 400 in the height direction is relatively small, so the height of the box body 100 can be reduced, and the center of gravity of the entire water module can also be reduced; the first water pump assembly and the second water pump assembly are respectively arranged between the corresponding first vertical pipe section 213 and the second vertical pipe section 273 and are arranged forward, which is very convenient for disassembly, installation and maintenance; the space between the first vertical pipe section 213 and the right side plate 140 can be used to arrange other pipelines or components, such as hot water pipelines; the space between the second vertical pipe section 273 and the left side plate 130 can also be used to arrange other pipelines or components, such as electric heaters. With such settings, the entire box body 100 is very stable, the internal structure is also very compact, the space utilization rate is high, the volume and occupied space of the entire heat pump water module can be greatly reduced, and thus the application scenario can be expanded, the container loading capacity can be increased, and the transportation cost can be reduced.

[0085] In this embodiment, as Figure 2 shown, the check valve of the first water circuit system is the first check valve 250, which is used to prevent the water in the first cold water pipeline 200 from flowing back; the check valve of the second water circuit system is the second check valve 450, which is used to prevent the water in the second cold water pipeline 400 from flowing back. Both are fixedly connected to the rear wall plate 120 of the box body 100. With such settings, the position of the check valve is fixed and restricted. At the same time, the water pumps and the cold water outlet pipelines at both ends of the check valve are also better supported and restricted. Therefore, it is beneficial to improve the stability of the entire cold water pipeline.

[0086] In this embodiment, as Figure 2 shown, a filter 420 is provided at the water inlet end of the second cold water pipeline 400. It can filter the impurities of the second terminal device, thereby protecting the water delivery pipeline, water pump, heat pump host, etc. Moreover, the filter 420 is built into the box body 100, and there is no need to install the filter 420 between the water module and the second terminal device during after-sales installation, which can greatly improve the installation efficiency and user experience.

[0087] Continuing as Figure 2 shown, in this embodiment, a first communication pipeline 600 is also connected between the second cold water inlet pipeline 410 and the first cold water inlet pipeline 210, and the end of the first communication pipeline 600 connected to the second cold water inlet pipeline 410 is located between the filter 420 and the second water pump assembly.

[0088] Specifically, in this embodiment, the first connecting pipe 600 includes a fixed oblique vertical pipe 610 and a connecting bend 620; the first cold water inlet pipe 210 is provided with a T-shaped tee connector 220, the two straight ends of the T-shaped tee connector 220 are respectively connected to the first cold water inlet pipe 210 and the first water pump assembly, and the third end of the T-shaped tee connector 220 is connected to the oblique vertical pipe 610; the second cold water inlet pipe 410 is provided with a filter 420 and a first Y-shaped tee connector 430, the symmetrical ends of the first Y-shaped tee connector 430 are respectively connected to the inlet end of the first bend of the second cold water inlet pipe 410 and the connecting bend 620, the third end of the first Y-shaped tee connector 430 is connected to the outlet end of the filter 420, and the inlet end of the filter 420 is connected to the outlet end of the first horizontal pipe section of the second cold water inlet pipe 410. By using a T-type tee connector 220 and a first Y-type tee connector 430, and connecting the first cold water inlet pipe 210 and the second cold water inlet pipe 410 through the first connecting pipe 600, the first cold water pipe 200 and the second cold water pipe 400 can replenish each other's water, making the water volume and water pressure in the two cold water pipes more balanced.

[0089] Continue as Figure 2 As shown, in this embodiment, a pressure gauge 820 is provided in the first connecting pipe 600 for detecting the water pressure in the pipe. Since the first cold water pipe 200 and the second cold water pipe 400 are connected through the first connecting pipe 600, in other embodiments of this application, the pressure gauge 820 can also be provided in the first cold water pipe 200 or the second cold water pipe 400.

[0090] In this embodiment, the inlet end of the first cold water pipe 200, the outlet end of the first hot water pipe 300, the inlet end of the second cold water pipe 400, and the outlet end of the second hot water pipe 500 all pass through the right side plate 140 of the housing 100 and are arranged sequentially from bottom to top; the outlet end of the first cold water pipe 200, the inlet end of the first hot water pipe 300, the outlet end of the second cold water pipe 400, and the inlet end of the second hot water pipe 500 all pass through the left side plate 130 of the housing 100 and are arranged sequentially from bottom to top. Of course, in other embodiments of this application, the inlet and outlet ends of each pipe can be interchanged. That is, the inlet end of the first cold water pipe 200, the outlet end of the first hot water pipe 300, the inlet end of the second cold water pipe 400, and the outlet end of the second hot water pipe 500 all pass through the left side plate 130, while the outlet end of the first cold water pipe 200, the inlet end of the first hot water pipe 300, the outlet end of the second cold water pipe 400, and the inlet end of the second hot water pipe 500 all pass through the right side plate 140. With this arrangement, the inlet ends of the cold water pipes and the outlet ends of the hot water pipes of each water system are adjacent, which facilitates connection with the terminal device; the outlet ends of the cold water pipes and the inlet ends of the hot water pipes of each water system are adjacent, which facilitates connection with the heat pump host.

[0091] Specifically, in this embodiment, the hot water pipe of the first water system is the first hot water pipe 300; the hot water inlet pipe of the first hot water pipe 300 is the first hot water inlet pipe 310, and the electric heater of the first hot water pipe 300 is the first electric heater 320; the first electric heater 320 is vertically arranged, and the water inlet end of the first electric heater 320 is located at its bottom end; the first hot water inlet pipe 310 includes a first straight pipe 311, a first bend pipe 312 and a U-shaped pipe 313 that are fixedly connected in sequence, the opening of the U-shaped pipe 313 faces upward and is arranged in the front-back direction; the first electric heater 320 is located behind the first straight pipe 311, and the water inlet end of the first electric heater 320 is connected to the water outlet end of the U-shaped pipe 313 and is lower than the first straight pipe 311. In this configuration, the first water pump 240 and the second water pump 440 are placed horizontally in the lower or middle part of the housing 100. The first electric heater 320 is located behind the third horizontal pipe section of the first cold water pipe 200 and the third horizontal pipe section of the second cold water pipe 400. This not only effectively utilizes the space behind the two third horizontal pipe sections and improves the compactness of the overall structure, but also reduces the height of the housing 100 compared with the scheme where all electric heaters are placed horizontally.

[0092] Specifically, in this embodiment, the hot water pipe of the second water system is the second hot water pipe 500; the hot water inlet pipe of the second hot water pipe 500 is the second hot water inlet pipe 510, the electric heater of the second hot water pipe 500 is the second electric heater 520, and the hot water outlet pipe of the second hot water pipe 500 is the second hot water outlet pipe 530; the second hot water inlet pipe 510 is horizontally positioned, and the second electric heater 520 is horizontally positioned between the second hot water inlet pipe 510 and the second hot water outlet pipe 530. Since the second hot water pipe 500 is primarily horizontally positioned, it occupies little space and effectively controls the height of the housing 100.

[0093] Specifically, in this embodiment, the hot water outlet pipe of the first hot water pipe 300 is the first hot water outlet pipe 330. The first hot water outlet pipe 330 includes a first hot water outlet pipe section 331, a three-way valve 332, and a second hot water outlet pipe section 333, which are fixedly connected. The inlet end and the outlet end of the three-way valve 332 are respectively connected to the first hot water outlet pipe section 331 and the second hot water outlet pipe section 333. The other outlet end of the three-way valve 332 is connected to the second hot water outlet pipe 530 through the second connecting pipe 700.

[0094] In the above configuration, when one terminal device, such as the domestic water tank, reaches the required temperature, while another terminal device, such as the heating terminal, has a higher demand but cannot meet it, adjusting the three-way valve 332 allows both the first and second water circuit systems to jointly provide a heat or cold source to the heating terminal, quickly meeting the user's heating or cooling needs. Furthermore, the three-way valve 332 facilitates the installation and removal of the second water circuit system; when the installation scenario changes, the second water circuit system can be directly installed or removed using the three-way valve 332. In addition, when three or more water circuit systems need to be installed, multi-way valves or multiple three-way valves 332 can be added to the first or second water circuit system to connect the hot water pipes and allow for mutual supplementation.

[0095] like Figure 1 As shown, the three-way valve 332 includes a valve body 3321 and an actuator 3322. The inlet and outlet ends of the valve body 3321 are connected to the first hot water outlet pipe section 331 and the second hot water outlet pipe section 333, respectively. The other outlet end of the valve body 3321 is connected to the second hot water outlet pipe 530. The actuator 3322 is located on top of the valve body 3321, and there is a disassembly / reassembly gap between the actuator 3322 and the top plate 150 of the housing 100. The disassembly / reassembly gap ranges from 10mm to 30mm. The height of the connection between the actuator 3322 and the valve body 3321 is not too high, and this range is sufficient to meet the disassembly / reassembly requirements of the actuator 3322. Furthermore, the disassembly / reassembly gap can be 20mm to 30mm, thereby providing more space for the disassembly / reassembly of the actuator 3322 and improving its ease of disassembly / reassembly.

[0096] In this embodiment, as Figure 3 As shown, the second connecting pipe 700 is L-shaped, including a fixed horizontal pipe section 710 and a vertical pipe section 720; the second hot water outlet pipe 530 includes a third hot water outlet pipe section 531, a second Y-type tee connector 532, and a fourth hot water outlet pipe section 533, which are fixedly connected in sequence. The symmetrical ends of the second Y-type tee connector 532 are connected to the outlet end of the third hot water outlet pipe section 531 and the horizontal pipe section 710, respectively, and the third end of the second Y-type tee connector 532 is connected to the inlet end of the fourth hot water outlet pipe section 533. With this configuration, the structure of the second connecting pipe 700 is simple, and the second hot water outlet pipe 530 is also basically horizontally arranged, which not only facilitates water flow but also occupies less height space, thus reducing the overall height.

[0097] In this embodiment, as Figure 3 As shown, a safety valve 810 is provided in the second connecting pipe 700. When the first water system and the second water system are working, the safety valve 810 can promptly relieve pressure on the first hot water pipe 300 and the second hot water pipe 500. Of course, in other embodiments of this application, the safety valve 810 may also be provided in the second hot water pipe 500.

[0098] In this embodiment, as Figure 1 As shown, a flow switch 830, also known as a water flow switch, is installed between the three-way valve 332 and the first electric heater 320, as well as in the second hot water inlet pipe 510. This is used to detect the fluid in the hot water pipe to effectively protect the electric heater, prevent problems such as dry burning of the electric heater due to insufficient flow and excessive pressure in the water system, and ensure the normal operation of the water system.

[0099] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0100] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat pump water module, characterized in that, It includes a housing (100) and at least one water system disposed within the housing (100), the water system including cold water pipes and hot water pipes; The hot water pipeline includes a detachable and fixedly connected hot water inlet pipeline, an electric heater, and a hot water outlet pipeline, with no pipeline obstructing the connection points at both ends of the electric heater.

2. The heat pump water module according to claim 1, characterized in that, The inlet end of the electric heater is connected to the outlet end of the hot water inlet pipe and is fixedly connected by the first clamp (340). There is no pipe obstruction in front of the fastener of the first clamp (340). And / or, the outlet end of the electric heater is connected to the inlet end of the hot water outlet pipe and is fixedly connected by a second clamp (350), with no pipe obstruction in front of the fastener of the second clamp (350).

3. The heat pump water module according to claim 2, characterized in that, The first clamp (340) is a knob-type clamp, and there is no pipeline obstruction in front of the knob of the first clamp (340); And / or, the second clamp (350) is a knob-type clamp, and there is no pipeline obstruction in front of the knob of the second clamp (350).

4. The heat pump water module according to claim 3, characterized in that, The inner peripheral wall of the first clamp (340) is provided with a first annular groove (341), the outer peripheral wall of the water inlet end of the electric heater is provided with a first annular protrusion (321), and the outer peripheral wall of the water outlet end of the hot water inlet pipe is provided with a second annular protrusion (314). The first annular protrusion (321) and the second annular protrusion (314) are connected and both are locked in the first annular groove (341). And / or, the inner peripheral wall of the second clamp (350) is provided with a second annular groove (351), the outer peripheral wall of the water outlet of the electric heater is provided with a third annular protrusion (322), the outer peripheral wall of the water inlet of the hot water outlet pipe is provided with a fourth annular protrusion (3311), the third annular protrusion (322) and the fourth annular protrusion (3311) are connected and both are locked in the second annular groove (351).

5. The heat pump water module according to claim 4, characterized in that, The end face of the first annular protrusion (321) away from the second annular protrusion (314) is a first annular inclined surface (3211), and from the top to the bottom of the first annular protrusion (321), the first annular inclined surface (3211) is inclined in a direction away from the second annular protrusion (314); and / or, the end face of the second annular protrusion (314) away from the first annular protrusion (321) is a second annular inclined surface (3141), and from the top to the bottom of the second annular protrusion (314), the second annular inclined surface (3141) is inclined in a direction away from the first annular protrusion (321); And / or, the end face of the third annular protrusion (322) away from the fourth annular protrusion (3311) is a third annular inclined surface (3221), and from the top to the bottom of the third annular protrusion (322), the third annular inclined surface (3221) is inclined in a direction away from the fourth annular protrusion (3311); and / or, the end face of the fourth annular protrusion (3311) away from the third annular protrusion (322) is a fourth annular inclined surface (3312), and from the top to the bottom of the fourth annular protrusion (3311), the fourth annular inclined surface (3312) is inclined in a direction away from the third annular protrusion (322).

6. The heat pump water module according to any one of claims 1-5, characterized in that, The cold water pipeline includes a detachable and fixedly connected cold water inlet pipeline, a water pump assembly, and a cold water outlet pipeline, with no pipeline obstructing the connection points at both ends of the water pump assembly.

7. The heat pump water module according to claim 6, characterized in that, The water pump assembly is fixedly connected to the cold water inlet pipe by a first nut (230), and there is no pipe obstruction in front of the first nut (230); And / or, the water pump assembly is fixedly connected to the cold water outlet pipe by a second nut (260), and there is no pipe obstruction in front of the second nut (260).

8. The heat pump water module according to claim 6, characterized in that, The waterway system has at least two parts, namely a first waterway system and a second waterway system; The cold water pipeline of the first water system is the first cold water pipeline (200); the cold water inlet pipeline of the first cold water pipeline (200) is the first cold water inlet pipeline (210); the water pump assembly of the first cold water pipeline (200) is the first water pump assembly; and the cold water outlet pipeline of the first cold water pipeline (200) is the first cold water outlet pipeline (270). The cold water pipeline of the second water system is the second cold water pipeline (400); the cold water inlet pipeline of the second cold water pipeline (400) is the second cold water inlet pipeline (410); the water pump assembly of the second cold water pipeline (400) is the second water pump assembly; and the cold water outlet pipeline of the second cold water pipeline (400) is the second cold water outlet pipeline (470). The first water pump assembly and the second water pump assembly are arranged adjacent to each other, and are located in the lower or middle part of the housing (100).

9. The heat pump water module according to claim 8, characterized in that, The hot water pipe of the first water system is the first hot water pipe (300); the hot water inlet pipe of the first hot water pipe (300) is the first hot water inlet pipe (310); and the electric heater of the first hot water pipe (300) is the first electric heater (320). The first electric heater (320) is vertically positioned, with its inlet end located at its bottom. The first hot water inlet pipe (310) includes a first straight pipe (311), a first bend pipe (312), and a U-shaped pipe (313) that are fixedly connected in sequence. The opening of the U-shaped pipe (313) faces upward and is arranged in the front-back direction. The first electric heater (320) is located behind the first straight pipe (311), and the inlet end of the first electric heater (320) is connected to the outlet end of the U-shaped pipe (313) and is lower than the first straight pipe (311).

10. The heat pump water module according to claim 9, characterized in that, The hot water pipe of the second water system is the second hot water pipe (500); the hot water inlet pipe of the second hot water pipe (500) is the second hot water inlet pipe (510); the electric heater of the second hot water pipe (500) is the second electric heater (520); and the hot water outlet pipe of the second hot water pipe (500) is the second hot water outlet pipe (530). The second hot water inlet pipe (510) is placed horizontally, and the second electric heater (520) is placed horizontally between the second hot water inlet pipe (510) and the second hot water outlet pipe (530).

11. The heat pump water module according to claim 10, characterized in that, The hot water outlet pipe of the first hot water pipe (300) is the first hot water outlet pipe (330), which includes a first hot water outlet pipe section (331), a three-way valve (332), and a second hot water outlet pipe section (333) that are fixedly connected. The three-way valve (332) includes a valve body (3321) and an actuator (3322). The inlet end and the outlet end of the valve body (3321) are respectively connected to the first hot water outlet pipe section (331) and the second hot water outlet pipe section (333). The other outlet end of the valve body (3321) is connected to the second hot water outlet pipe (530). The actuator (3322) is disposed on the top of the valve body (3321), and there is a disassembly gap between the actuator (3322) and the top plate (150) of the housing (100), the value of which is 10mm to 30mm.

12. A heat pump device, characterized in that, It includes a heat pump main unit, a terminal device, and a heat pump water module as described in any one of claims 1-11, wherein the heat pump water module is connected between the heat pump main unit and the terminal device.

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