Heat pump water module and heat pump equipment

Abstract

The utility model 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] The utility model relates to the technical field of heat pumps, in particular to a heat pump water module and heat pump equipment. Background Art

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

[0003] In the prior art, to prevent insufficient heating from the heat pump main unit, some hot water pipes are equipped with electric heaters. However, the electric heaters in the heat pump water modules of the prior art are difficult to disassemble and install, making them inconvenient for inspection and maintenance. Furthermore, in the prior art, heat pump water modules are mostly wall-mounted, with outlet pipes generally located on the bottom, which cannot meet the needs of various installation scenarios. When users have multiple usage requirements, they usually install multiple heat pump water modules to supply hot or cold water to multiple terminal devices separately, which takes up a lot of space. Utility Model Content

[0004] The first purpose of the utility model is to provide a heat pump water module to solve the technical problem in the prior art that the electric heater of the heat pump water module is difficult to disassemble and assemble.

[0005] The heat pump water module provided by the utility model includes a box body and at least one water system arranged in the box body, the water system includes a cold water pipe and a hot water pipe; the hot water pipe includes a detachable fixedly connected hot water inlet pipe, an electric heater and a hot water outlet pipe, and there is no pipe obstruction in front of the connection parts at both ends of the electric heater.

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

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

[0008] The heat pump water module provided by the present invention includes an electric heater that provides auxiliary heating, allowing water to be quickly heated to the desired temperature, better meeting customer needs. Furthermore, since there are no pipelines blocking the connection points at both ends of the hot water pipeline, the electric heater can be easily disassembled and assembled by removing or opening the front components, such as the front panel. This allows the electric heater to be removed from between the hot water inlet and outlet pipes, or installed between them, greatly improving the efficiency of inspection and maintenance.

[0009] Furthermore, the water inlet of the electric heater is butted against the water outlet of the hot water inlet pipe and fixedly connected by a first clamp, with no pipeline obstructing the front of the fastener of the first clamp; and / or the water outlet of the electric heater is butted against the water inlet of the hot water outlet pipe and fixedly connected by a second clamp, with no pipeline obstructing the front of the fastener of the second clamp. By fixing the water inlet of the electric heater and the water outlet of the hot water inlet pipe with the first clamp and fixing the water outlet of the electric heater and the water inlet of the hot water outlet pipe with the second clamp, parts are readily available and assembly and disassembly are very convenient.

[0010] Furthermore, the first clamp is a knob-type clamp, and the front of the first clamp's knob is free of pipeline obstruction; and / or the second clamp is a knob-type clamp, and the front of the second clamp's knob is free of pipeline obstruction. The clamps can be tightened or loosened between the two ends of the electric heater and the corresponding pipelines by turning the knobs, which is quick and easy to operate with one hand.

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

[0012] Further, the end surface 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 surface 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 slope, and from the top to the bottom of the third annular protrusion, the third annular slope 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 slope, and from the top to the bottom of the fourth annular protrusion, the fourth annular slope is inclined in a direction away from the third annular protrusion.

[0014] Under this technical solution, the setting of each annular bevel plays a guiding role on the clamp, which can make the clamping groove and the protrusion clamped faster and more accurately. Moreover, the setting of the annular bevel makes the tightness of the clamp adjustable, thereby ensuring that the electric heater and the corresponding pipeline are tightly fixed, ensuring the reliability of the connection between the two, and also ensuring the sealing of the connection between the two.

[0015] Furthermore, the cold water pipeline includes a detachably fixed cold water inlet pipeline, a water pump assembly, and a cold water outlet pipeline, and there is no pipeline obstruction in front of the connection parts at both ends of the water pump assembly. Since there is no pipeline obstruction in front of the connection parts at both ends of the water pump assembly in the cold water pipeline, after removing or opening the components in front of it, such as the front panel of the box, the two ends of the water pump assembly can be easily disassembled and assembled, thereby removing the water pump assembly from between the cold water inlet pipeline and the cold water outlet pipeline, or installing the water pump assembly between the cold water inlet pipeline and the cold water outlet pipeline, which can greatly improve 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 obstructing the 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 obstructing the front of the second nut. The water pump assembly can be conveniently assembled and disassembled by simply tightening the nut.

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

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

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

[0020] The first water pump assembly and the second water pump assembly are arranged adjacent to each other on the upper and lower sides and are located at the lower part or the middle part of the box body.

[0021] Under this technical solution, since the water pump assembly is relatively heavy, such a setting can lower the center of gravity of the entire water module, making the entire water module more stable; the first cold water pipeline and the second cold water pipeline occupy a relatively small space in the height direction, so the height of the box can be reduced, and the center of gravity of the entire water module can also be lowered, thereby improving the overall compactness and stability of the water module. At the same time, it improves the adaptability of the water module to the usage scenario, and is also conducive to increasing the cabinet loading volume, thereby reducing transportation costs.

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

[0023] Under this technical solution, the first water pump and the second water pump are placed horizontally in the lower or middle part of the box body, and the first electric heater is located behind the third horizontal pipe section of the first cold water pipeline and the third horizontal pipe section of the second cold water pipeline. 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 box body compared to the solution in which all electric heaters are placed horizontally.

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

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

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

[0027] The actuator is arranged on the top of the valve body, and there is a disassembly gap between the actuator and the top plate of the box body, and the value range of the disassembly gap is 10mm to 30mm.

[0028] With this technical solution, when one terminal device, such as a domestic water tank, reaches temperature while another terminal device, such as a heating terminal, experiences high demand but cannot meet it, adjusting the three-way valve allows the first and second water systems to jointly provide heat or cooling to the heating terminal, quickly meeting the user's heating or cooling needs. Ensuring sufficient clearance between the actuator and the top plate of the housing facilitates assembly and disassembly of the actuator.

[0029] The second purpose of the present utility model is to provide a heat pump device to solve the technical problem in the prior art that the electric heater of the heat pump water module is difficult to disassemble and assemble.

[0030] The heat pump device provided by the present invention comprises a heat pump main unit, a terminal device, and the above-mentioned heat pump water module, wherein the heat pump water module is connected between the heat pump main unit and the terminal device. The heat pump device has all the beneficial effects of the above-mentioned heat pump water module, so they will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0032] Figure 1 This is one of the partial structural front views of the heat pump water module provided by an embodiment of the present utility model;

[0033] Figure 2 The second front view of the partial structure of the heat pump water module provided by the embodiment of the utility model;

[0034] Figure 3 A schematic diagram of the structure of the pipelines in the box of the heat pump water module provided by the embodiment of the utility model;

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

[0036] Figure 5 A schematic diagram of the structure of the heat pump water module after the electric heater is disassembled according to an embodiment of the present invention;

[0037] Figure 6 An exploded view of the local structure of the hot water pipeline of the heat pump water module provided in an embodiment of the present utility model;

[0038] Figure 7 A schematic diagram of the structure of the heat pump water module after the water pump is disassembled according to an embodiment of the present invention;

[0039] Figure 8 An exploded view of the local structure of the cold water pipeline of the heat pump water module provided in an embodiment of the present utility model;

[0040] Figure 9 A cross-sectional view of a water pump assembly of a heat pump water module provided by an embodiment of the present utility model;

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

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

[0043] Description of reference numerals:

[0044] 100-Box body; 120-Rear wall; 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 transverse pipe section; 212 - first bend; 213 - first longitudinal pipe section; 214 - second bend; 215 - second transverse pipe section; 220 - T-type three-way 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 transverse pipe section; 272 - third bend; 273 - second longitudinal pipe section; 274 - fourth bend; 275 - fourth transverse pipe section; 2751 - second limiting protrusion;

[0046] 300 - first hot water pipe; 310 - first hot water inlet pipe; 311 - first straight pipe; 312 - first elbow; 313 - U-shaped pipe; 314 - second annular protrusion; 3141 - second annular slope; 3142 - second flexible joint; 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 flexible joint; 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 three-way 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 three-way connector; 533 - fourth hot water outlet pipe section;

[0049] 600 - first connecting pipe; 610 - oblique vertical straight pipe; 620 - connecting elbow;

[0050] 700 - second connecting pipe; 710 - horizontal pipe portion; 720 - vertical pipe portion;

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

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0053] This embodiment provides a heat pump water module and a heat pump device. The electric heater and other components of the heat pump water module 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 main unit and a terminal device, and the heat pump water module is connected between the heat pump main unit 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 box body 100 and at least one water system arranged in the box body 100, the water system includes a cold water pipe and a hot water pipe; the hot water pipe includes a detachable fixedly connected hot water inlet pipe, an electric heater and a hot water outlet pipe, and there is no pipe obstruction in front of the connection parts at both ends of the electric heater.

[0056] In this embodiment, there are two water systems, namely the first water system and the second water system. The two water systems can be connected to a terminal device respectively. The terminal device connected to the first water system is the first terminal device, and the terminal device connected to the second water system is the second terminal device. The first terminal device and the second terminal device are different. In actual applications, the first terminal device is preferably a domestic water tank, and the second terminal device is preferably at least one of the following: air conditioning, floor heating, and radiator group. The specific first terminal device and the second terminal device can be set according to actual conditions, and will not be described in detail in this embodiment. It should be noted that in other embodiments of the present application, the water system is not limited to two, but can also be one, or three or four, etc., and can be set according to specific needs.

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

[0058] The electric heater serves as an auxiliary heating element, allowing the water to be quickly heated to the desired temperature, better meeting customer needs. Furthermore, since there are no pipelines blocking the connection points at both ends of the hot water line's electric heater, removing or opening the front components, such as the front panel, allows for easy access to both ends of the electric heater. This allows the electric heater to be removed from between the hot water inlet and outlet pipes, or installed between them, greatly improving maintenance efficiency.

[0059] In this embodiment, the outlet side of the hot water pipeline and the cold water inlet pipeline both pass through the right side plate 140 of the housing 100 and are configured to be connected to the terminal device; the inlet side of the hot water pipeline and the cold water outlet pipeline both pass through the left side plate 130 of the housing 100 and are configured to be connected to the heat pump main unit. Of course, in other embodiments of the present application, the outlet side of the hot water pipeline and the cold water inlet pipeline can also pass through the left side plate 130 of the housing 100, while the inlet side of the hot water pipeline and the cold water outlet pipeline both pass through the right side plate 140 of the housing 100. With this arrangement, the heat pump main unit and the terminal device can be connected on both sides of the housing 100, which is very convenient for after-sales installation and connection. The cold water pipeline of the heat pump water module can transport water in the terminal device to the heat pump main unit. After the heat pump main unit heats or cools the water, the hot water pipeline of the heat pump water module then transports the hot water or cold water to the terminal device. Moreover, with this setting, it can be installed as a wall-mounted or floor-standing type, and its applicable scenarios are greatly increased.

[0060] Specifically, in this embodiment, Figures 4 to 6 as well as Figure 10 and Figure 11 As shown, the water inlet of the electric heater is docked with the water outlet of the hot water inlet pipe and fixedly connected via a first clamp 340. The first clamp 340's fastener is not obstructed by any pipes. The water outlet of the electric heater is docked with the water inlet of the hot water outlet pipe and fixedly connected via a second clamp 350. The second clamp 350's fastener is not obstructed by any pipes. The first clamp 340 secures the connection between the water inlet of the electric heater and the water outlet of the hot water inlet pipe, while the second clamp 350 secures the connection between the water outlet of the electric heater and the water inlet of the hot water outlet pipe. Parts are readily available, and assembly and disassembly are very convenient.

[0061] It should be noted that in other embodiments of the present application, only the water inlet end of the electric heater and the water outlet end of the hot water inlet pipe may be connected by a clamp, while the water outlet end of the electric heater and the water inlet end of the hot water outlet pipe may be fixedly connected by a flange or other structure; or only the water outlet end of the electric heater and the water inlet end of the hot water outlet pipe may be connected by a clamp, while the water inlet end of the electric heater and the water outlet end of the hot water inlet pipe may be connected by a flange or other structure. Of course, in other embodiments of the present application, both ends of the electric heater may also be detachably fixedly connected to the corresponding pipes by flanges. That is, as long as the electric heater is detachable and easy to detach, the present application does not impose any specific restrictions on the connection structure of its two ends.

[0062] Specifically, in this embodiment, the first clamp 340 is a knob-type clamp, and the front of the knob of the first clamp 340 is not blocked by the pipeline; the second clamp 350 is a knob-type clamp, and the front of the knob of the second clamp 350 is not blocked by the pipeline. The clamps are tightened or loosened by turning the knobs to tighten or loosen the ends of the electric heater and the corresponding pipelines, which can be operated quickly and conveniently with one hand.

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

[0064] It should be noted that the second annular protrusion 314 can be directly provided at the outlet end of the hot water inlet pipe, or a second flexible joint 3142 can be used, such as Figure 10 As shown, it is a hollow T-shaped joint. The second union 3142 is placed outside or inside the water outlet 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 provided at the water inlet of the hot water outlet pipe, or a third union 3313 can be used. It is a hollow T-shaped joint. The third union 3313 is placed outside or inside the water inlet 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, Figure 10 As shown, the end surface 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 surface 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 the present application, only one of the first annular inclined surface 3211 or the second annular inclined surface 3141 may be provided.

[0066] Continue as Figure 10As shown, the end surface 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 surface 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 the present application, only one of the third annular inclined surface 3221 or the fourth annular inclined surface 3312 may be provided.

[0067] The settings of the above annular bevels all serve as guides for the clamp, enabling the clamping groove and the protrusion to be clamped faster and more accurately. Moreover, the setting of the annular bevels makes the tightness of the clamp adjustable, thereby ensuring that the electric heater and the corresponding pipeline are tightly fixed, ensuring the reliability of the connection between the two, and also ensuring the sealing of the connection between the two.

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

[0069] The heat pump water module provided in this embodiment has the advantages of easy disassembly of the electric heater, and its cold water pipeline is also provided with a water pump, and the disassembly and assembly of the water pump is also very convenient.

[0070] Specifically, 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, and there is no pipeline obstruction in front of the connection parts at both ends of the water pump assembly. Since there is no pipeline obstruction in front of the connection parts at both ends of the water pump assembly in the cold water pipeline, after removing or opening the components in front of it, such as the front panel of the housing 100, the two ends of the water pump assembly can be easily disassembled and assembled, thereby removing the water pump assembly from between the cold water inlet pipeline and the cold water outlet pipeline, or installing the water pump assembly between the cold water inlet pipeline and the cold water outlet pipeline, which can greatly improve the efficiency of inspection and maintenance.

[0071] Specifically, in this embodiment, Figure 2As shown, the water pump assembly is fixedly connected to the cold water inlet pipe via a first nut 230, with no pipe obstructing the 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 obstructing the front of the second nut 260. In this arrangement, the water pump assembly can be easily assembled and disassembled by simply twisting the nuts, making it very convenient.

[0072] It should be noted that in other embodiments of the present application, at either end of the water pump assembly, only the water inlet or only the water outlet may be connected to the corresponding pipeline via a nut, while the other end may be connected via other detachable fixed connection methods. For example, only the water inlet of the water pump assembly may be connected to the cold water inlet pipeline via a nut, while the water outlet of the water pump assembly may be fixedly connected to the cold water outlet pipeline via a flange or other structure. Of course, in other embodiments of the present application, both ends of the water pump assembly may also be detachably fixedly connected to the corresponding pipeline via a flange. That is, as long as the water pump is detachable and easy to disassemble, the present application does not impose specific restrictions on the connection structure at its two ends.

[0073] More specifically, in this embodiment, Figure 2 As shown, the cold water inlet pipe is fixed with a connecting joint, and the outlet end of the connecting joint is connected to the water inlet end of the water pump assembly through a first nut 230. Among them, the connecting joint includes a two-way joint and a three-way joint, which can be selected according to specific needs, such as Figure 2 As shown, in the first water system, the water inlet end of the water pump assembly is connected to a three-way joint, the first end of the three-way joint is connected to the water inlet end of the water pump assembly through a first nut 230, the second end is connected to the cold water inlet pipeline, and the third end is configured to be connected to other cold water pipelines (such as the cold water inlet pipeline of the second water system); while in the second water system, the water inlet end of the water pump assembly is connected to a two-way joint, the water outlet end of the two-way joint is connected to the water inlet end of the water pump assembly through a first nut 230, and the water inlet end of the two-way joint is connected to the water outlet end of the cold water inlet pipeline. By providing a connecting joint at the water outlet end of the cold water inlet pipeline, while ensuring that the cold water inlet pipeline and the water pump assembly are easy to install and disassemble, the water outlet end of the cold water inlet pipeline can be avoided from being modified, which is very convenient.

[0074] In this embodiment, 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 joint is provided with a first limiting protrusion 221. The first limiting protrusion 221 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 is tightly abutted against the first limiting protrusion 221. In this arrangement, when the water inlet end of the water pump assembly needs to be disassembled, it is only necessary to unscrew the first nut 230 from the first thread 241, which is very quick and convenient. Moreover, under the blocking effect of the first limiting protrusion 221, the first nut 230 will not fall off.

[0075] It should be noted here that in other embodiments of the present application, the setting positions of the first limiting protrusion 221 and the first thread 241 can also be swapped. At that time, the first nut 230 is sleeved outside the water inlet end of the water pump assembly, that is: the water inlet end of the water pump assembly is provided with a first limiting protrusion 221, and the water outlet end of the connecting joint is provided with a first thread 241. The first nut 230 is sleeved outside the water inlet end of the water pump assembly, and the water inlet end of the water pump assembly and the water outlet end of the connecting joint are fixedly connected, which 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 joint, or a first flexible joint can be used, which is a hollow T-shaped joint. The first flexible joint is fixedly set inside or outside the water outlet end of the connecting joint, and the radial protrusion of the first flexible joint forms the first limiting protrusion 221.

[0077] In this embodiment, Figure 8 and Figure 9 As shown, the water pump assembly includes a water pump and a check valve. The water pump is used to provide power for the flow of water. The check valve can also be called a one-way valve and is used to prevent water from flowing back. The water pump is connected to the connecting joint, and the check valve is connected to the cold water outlet pipe. The water inlet end of the check valve is provided with an internal thread 251, and the water outlet end of the water pump is provided with 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 the present application, it can also be: the water outlet end of the water pump is provided with an internal thread 251, and the water inlet end of the check valve is provided with an external thread 242. At that time, the water outlet end of the water pump and the water inlet end of the check valve can still be fixedly connected by the external thread 242 and the internal thread 251. In this arrangement, when the water pump needs to be disassembled, the water pump assembly can be removed from the cold water pipe, and then the water pump and the check valve can be disassembled. Of course, in other embodiments of the present application, the water inlet end of the check valve and the water outlet end of the water pump can also be directly connected through the second nut 260. At that time, when the water pump needs to be disassembled, only the water pump needs to be disassembled.

[0078] It should be noted here that, in other embodiments of the present 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 having a second limiting surface 263; the cold water outlet pipe is provided with a second limiting protrusion 2751, the second limiting protrusion 2751 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 tightly abutted against the second limiting protrusion 2751. In this arrangement, when the water pump needs to be disassembled, the second nut 260 can be unscrewed from the second thread 252, that is, the water pump assembly is removed from the cold water pipe, and then the water pump and the check valve are disassembled; and the second nut 260 will not fall off under the blocking effect of the second limiting protrusion 2751.

[0080] In other embodiments of the present application, the setting positions of the second limiting protrusion 2751 and the second thread 252 can also be swapped. At that time, the second nut 260 is sleeved outside the water outlet end of the check valve, that is: the water outlet end of the check valve is provided with a second limiting protrusion 2751, and the water inlet end of the cold water outlet pipe is provided with a second thread 252. The second nut 260 is sleeved outside the water outlet end of the check valve, and the water inlet end of the cold water outlet pipe and the water outlet end of the check valve are fixedly connected, which is also very convenient for disassembly and assembly.

[0081] In this embodiment, Figure 2 As shown, the water pump assembly of the first water system and the water pump assembly of the second water system are arranged adjacent to each other at the top and bottom, and are located in the lower or middle part of the housing 100, close to the bottom plate 160. Since the water pump assembly is relatively heavy, this arrangement can lower the center of gravity of the entire water module, making the entire water module more stable.

[0082] Specifically, in this embodiment, Figure 2 As shown, combined with 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 adjacent to each other on the upper and lower parts, and are located at the lower part or the middle part of the box body 100, and are arranged close to the bottom plate 160. With this arrangement, the first cold water pipeline 200 and the second cold water pipeline 400 occupy a relatively small space in the height direction, so the height of the box body 100 can be reduced, and the center of gravity of the entire water module can also be lowered. While improving the compactness and stability of the overall structure of the water module, it also improves the adaptability of the water module to the usage scenario, and is also conducive to increasing the cabinet loading volume, thereby reducing transportation costs.

[0083] Specifically, in this embodiment, 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 includes a first transverse pipe section 211, a first bend 212, a first longitudinal pipe section 213, a second bend 214 and a second transverse pipe section 215 from its water inlet end to its water outlet end. The first longitudinal pipe section 213 extends from the first bend 212 in a direction 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 a third horizontal pipe section 271, a third bend 272, a second longitudinal pipe section 273, a fourth bend 274 and a fourth horizontal pipe section 275 from its water outlet end to its water inlet end. The second longitudinal pipe section 273 extends from the third bend 272 to the fourth bend 274 away from the front panel; the first water pump assembly is placed horizontally 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 placed horizontally and connected between the second horizontal pipe section and the fourth horizontal pipe section of the second cold water pipe 400.

[0084] Under the above configuration, when viewed from above, the first cold water pipe 200 and the second cold water pipe 400 are both roughly in the shape of a "J" or "Ω". The first cold water pipe 200 and the second cold water pipe 400 occupy relatively little space in the height direction, thereby reducing the height of the housing 100 and the center of gravity of the entire water module. The first water pump assembly and the second water pump assembly are respectively arranged between the corresponding first longitudinal pipe section 213 and the second longitudinal pipe section 273, and are arranged forward, which is very convenient for disassembly and maintenance. The space between the first longitudinal pipe section 213 and the right side plate 140 can be used to arrange other pipes or components, such as a hot water pipe. The space between the second longitudinal pipe section 273 and the left side plate 130 can also be used to arrange other pipes or components, such as an electric heater. With this configuration, the entire housing 100 is very stable, the structure within it is also very compact, and the space utilization rate is high. It can greatly reduce the volume and occupied space of the entire heat pump water module, thereby expanding the application scenarios, increasing the container load, and reducing transportation costs.

[0085] In this embodiment, Figure 2 As shown, the check valve of the first water system is first check valve 250, which is used to prevent water backflow in the first cold water pipeline 200; the check valve of the second water system is second check valve 450, which is used to prevent water backflow in the second cold water pipeline 400. Both check valves are fixedly connected to the rear wall 120 of the cabinet 100. This arrangement fixes and restricts the position of the check valves, while at the same time, the water pump and cold water outlet pipeline at both ends of the check valves are better supported and restricted, thereby improving the stability of the entire cold water pipeline.

[0086] In this embodiment, Figure 2 As shown, a filter 420 is installed at the water inlet of the second cold water pipeline 400. This filter can filter impurities from the second terminal device, thereby protecting the water pipeline, water pump, heat pump unit, etc. Moreover, the filter 420 is built into the housing 100, eliminating the need to install the filter 420 between the water module and the second terminal device during after-sales installation, greatly improving installation efficiency and enhancing the user experience.

[0087] Continue as Figure 2 As shown, in this embodiment, a first connecting pipe 600 is further connected between the second cold water inlet pipe 410 and the first cold water inlet pipe 210, and one end of the first connecting pipe 600 connected to the second cold water inlet pipe 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 inclined longitudinal straight pipe 610 and a connecting elbow 620; the first cold water inlet pipe 210 is provided with a T-shaped three-way joint 220, and the two straight ends of the T-shaped three-way joint 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 three-way joint 220 is connected to the inclined longitudinal straight pipe 610; the second cold water inlet pipe 410 is provided with a filter 420 and a first Y-shaped three-way joint 430, and the symmetrical ends of the first Y-shaped three-way joint 430 are respectively connected to the water inlet end of the first bend of the second cold water inlet pipe 410 and the connecting elbow 620, and the third end of the first Y-shaped three-way joint 430 is connected to the water outlet end of the filter 420, and the water inlet end of the filter 420 is connected to the water outlet end of the first horizontal pipe section of the second cold water inlet pipe 410. By placing 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 water with each other, so that the water volume and water pressure in the two cold water pipes are more balanced.

[0089] Continue as Figure 2 As shown, in this embodiment, the first connecting pipe 600 is provided with a pressure gauge 820 for detecting the water pressure within 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 the present 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 water inlet end of the first cold water pipe 200, the water outlet end of the first hot water pipe 300, the water inlet end of the second cold water pipe 400, and the water outlet end of the second hot water pipe 500 all pass through the right side plate 140 of the box body 100, and are arranged in sequence from bottom to top; the water outlet end of the first cold water pipe 200, the water inlet end of the first hot water pipe 300, the water outlet end of the second cold water pipe 400, and the water inlet end of the second hot water pipe 500 all pass through the left side plate 130 of the box body 100, and are arranged in sequence from bottom to top. Of course, in other embodiments of the present application, the water inlet and outlet of each pipeline can also be swapped, that is, the water inlet of the first cold water pipeline 200, the water outlet of the first hot water pipeline 300, the water inlet of the second cold water pipeline 400, and the water outlet of the second hot water pipeline 500 all pass through the left side plate 130, while the water outlet of the first cold water pipeline 200, the water inlet of the first hot water pipeline 300, the water outlet of the second cold water pipeline 400, and the water inlet of the second hot water pipeline 500 all pass through the right side plate 140. In this arrangement, the water inlet of the cold water pipeline and the water outlet of the hot water pipeline of each water system are adjacent to each other, which is convenient for connection with the terminal device; the water outlet of the cold water pipeline and the water inlet of the hot water pipeline of each water system are adjacent to each other, which is convenient for connection with the heat pump host.

[0091] Specifically, in this embodiment, the hot water pipeline of the first water system is the first hot water pipeline 300; the hot water inlet pipeline of the first hot water pipeline 300 is the first hot water inlet pipeline 310, and the electric heater of the first hot water pipeline 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 pipeline 310 includes a first straight pipe 311, a first curved pipe 312 and a U-shaped pipe 313 fixedly connected in sequence, and the opening of the U-shaped pipe 313 is facing upward and arranged in the front-to-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 arrangement, the first water pump 240 and the second water pump 440 are placed horizontally in the lower or middle part of the box body 100, and the first electric heater 320 is located behind the third transverse pipe section of the first cold water pipe 200 and the third transverse pipe section of the second cold water pipe 400. This not only effectively utilizes the space behind the two third transverse pipe sections and improves the compactness of the overall structure, but also reduces the height of the box body 100 compared to the solution in which all electric heaters are placed horizontally.

[0092] Specifically, in this embodiment, the hot water pipeline of the second water system is a second hot water pipeline 500; the hot water inlet pipeline of the second hot water pipeline 500 is a second hot water inlet pipeline 510; the electric heater of the second hot water pipeline 500 is a second electric heater 520; and the hot water outlet pipeline of the second hot water pipeline 500 is a second hot water outlet pipeline 530; the second hot water inlet pipeline 510 is horizontally arranged, and the second electric heater 520 is horizontally arranged between the second hot water inlet pipeline 510 and the second hot water outlet pipeline 530. The second hot water pipeline 500 is basically arranged horizontally, so it takes up little space and can effectively control 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, and 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 that are fixedly connected; the water inlet end and one water 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, and the other water outlet end of the three-way valve 332 is connected to the second hot water outlet pipe section 330 through the second connecting pipe 700.

[0094] Under the above setting, when one of the terminal devices, such as the domestic water tank, reaches the temperature, and the other terminal device, such as the heating terminal, has a large demand but cannot be met, by adjusting the three-way valve 332, the first water system and the second water system can jointly provide a heat source or a cold source to the heating terminal to quickly meet the user's heating or cooling needs. Moreover, the provision of the three-way valve 332 also facilitates the disassembly and assembly of the second water system. When the installation scenario changes, the disassembly and assembly of the second water system can be directly completed through the three-way valve 332. In addition, when three or more water systems need to be installed, a multi-way valve body or multiple three-way valves 332 can be added to the first water system or the second water system to connect the hot water pipes to each other so as to complement each other.

[0095] like Figure 1 As shown, the three-way valve 332 includes a valve body 3321 and an actuator 3322. The water inlet and outlet ends 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 arranged on the top of the valve body 3321, and there is a disassembly clearance between the actuator 3322 and the top plate 150 of the box body 100. The value range of the disassembly clearance is 10mm to 30mm. The height of the connection between the actuator 3322 and the valve body 3321 is not too high. This value range can meet the disassembly and assembly requirements of the actuator 3322. Furthermore, the disassembly clearance can be set to 20mm to 30mm, thereby providing more space for the disassembly and assembly of the actuator 3322, thereby improving its disassembly and assembly convenience.

[0096] In this embodiment, Figure 3 As shown, the second connecting pipe 700 is L-shaped and includes a fixed horizontal pipe portion 710 and a vertical pipe portion 720. The second hot water outlet pipe 530 includes a third hot water outlet pipe section 531, a second Y-shaped three-way joint 532, and a fourth hot water outlet pipe section 533, which are fixedly connected in sequence. The symmetrical ends of the second Y-shaped three-way joint 532 are respectively connected to the outlet end of the third hot water outlet pipe section 531 and the horizontal pipe portion 710, and the third end of the second Y-shaped three-way joint 532 is connected to the inlet end of the fourth hot water outlet pipe section 533. This arrangement simplifies the structure of the second connecting pipe 700, and the second hot water outlet pipe 530 is also basically arranged horizontally, which not only facilitates water flow but also occupies a relatively small height space, thereby reducing the overall height.

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

[0098] In this embodiment, Figure 1 As shown, a target flow switch 830, also called a water flow switch, is provided between the three-way valve 332 and the first electric heater 320 and in the second hot water inlet pipe 510. It is used to detect the fluid in the hot water pipe to effectively protect the electric heater, prevent the electric heater from drying out due to too small a flow rate 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, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0100] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat pump water module, characterized in that: It comprises a box (100) and at least one water system arranged in the box (100), wherein the water system comprises a cold water pipeline and a hot water pipeline; The hot water pipeline includes a detachably fixed hot water inlet pipeline, an electric heater and a hot water outlet pipeline, and there is no pipeline obstruction in front of the connection parts at both ends of the electric heater.

2. The heat pump water module according to claim 1, characterized in that: The water inlet end of the electric heater is butted against the water outlet end of the hot water inlet pipe and fixedly connected via a first clamp (340), with no pipeline blocking the front of the fastener of the first clamp (340); And / or, the water outlet end of the electric heater is docked with the water inlet end of the hot water outlet pipe and fixedly connected via a second clamp (350), and there is no pipeline blocking the 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 blocking the 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 blocking the 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 docked and both are clamped 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 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), and the third annular protrusion (322) is docked with the fourth annular protrusion (3311), and both are clamped in the second annular groove (351).

5. The heat pump water module according to claim 4, characterized in that: The end surface 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 surface 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 to 5, characterized in that: The cold water pipeline includes a detachably fixed cold water inlet pipeline, a water pump assembly and a cold water outlet pipeline, and there is no pipeline obstruction in front of the connection parts 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 pipeline via a first nut (230), and there is no pipeline blocking in front of the first nut (230); And / or, the water pump assembly is fixedly connected to the cold water outlet pipeline via a second nut (260), and there is no pipeline blocking in front of the second nut (260).

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

9. The heat pump water module according to claim 8, characterized in that: The hot water pipeline of the first water system is a first hot water pipeline (300); the hot water inlet pipeline of the first hot water pipeline (300) is a first hot water inlet pipeline (310); and the electric heater of the first hot water pipeline (300) is a 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 pipeline (310) comprises a first straight pipe (311), a first curved pipe (312), and a U-shaped pipe (313) fixedly connected in sequence, and the opening of the U-shaped pipe (313) faces upward and is arranged in the front-to-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).

10. The heat pump water module according to claim 9, characterized in that: The hot water pipeline of the second water system is a second hot water pipeline (500); the hot water inlet pipeline of the second hot water pipeline (500) is a second hot water inlet pipeline (510); the electric heater of the second hot water pipeline (500) is a second electric heater (520); and the hot water outlet pipeline of the second hot water pipeline (500) is a second hot water outlet pipeline (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 a first hot water outlet pipe (330), and the first hot water outlet pipe (330) comprises 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) comprises a valve body (3321) and an actuator (3322); a water inlet end and a water 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 water outlet end of the valve body (3321) is in communication with the second hot water outlet pipe (530); The actuator (3322) is arranged 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 box body (100), and the value range of the disassembly gap is 10mm to 30mm.

12. A heat pump device, characterized in that: It comprises a heat pump main unit, a terminal device and a heat pump water module according to any one of claims 1 to 11, wherein the heat pump water module is connected between the heat pump main unit and the terminal device.

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