Heating client hydraulic device and heating and ventilation equipment

Abstract

The invention discloses a heating client hydraulic device and heating and ventilation equipment, and relates to the technical field of heating and ventilation. The heating client hydraulic device comprises a machine body and a hydraulic module part, the machine body is provided with a back plate, and the back plate is provided with a through hole and a plurality of first connecting parts surrounding the periphery of the through hole; the hydraulic module part is installed on the machine body and comprises a plurality of external pipelines, each external pipeline is used for being connected with one of a heat pump device, a tap water pipeline and a user heating tail end outside the machine body, and the external pipelines are arranged in the through holes in a penetrating mode and provided with at least one second connecting part. The second connecting part is configured to be selectively in butt joint with one of the first connecting parts. When the external pipeline is assembled, the mounting angle of the external pipeline is adjusted by selectively connecting the second connecting part into one of the first connecting parts, so that the external pipeline can be conveniently butted with an external heat pump device, a tap water pipeline or a heating terminal of a user, the assembly efficiency of the device can be improved, and the device can be matched with different mounting scenes; and the universality of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation and air conditioning (HVAC) technology, and more particularly to a hydraulic device for heating households and HVAC equipment. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] Heating systems in HVAC systems provide heating and hot water services to users through centralized heat sources. With evolving needs, the hydraulic modules at the client's location often require the integration of multiple devices such as zone control, buffer storage units, gas boilers, and solar energy systems.

[0004] Hydraulic module components need to be connected to heat pump devices, tap water pipes, and user heating terminals via pipelines. How to facilitate the connection of water module pipelines to heat pump devices, tap water pipes, and user heating terminals, and improve the overall assembly efficiency of the equipment, is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to at least address the problem of insufficient efficiency improvement in existing water volume module piping connections to heat pump devices, municipal water pipes, and user heating terminals. This objective is achieved through the following technical solution: This invention proposes a hydraulic device for a heating household, comprising a body and a hydraulic module component. The body has a back plate with a through hole and a plurality of first connecting parts arranged circumferentially around the through hole. The hydraulic module component is installed on the body and includes at least one external pipe. Each external pipe is used to connect to one of the following three: a heat pump device outside the body, a tap water pipe, and a user heating terminal. Each external pipe passes through one of the through holes and has at least one second connecting part, which is configured to selectively connect to one of the first connecting parts.

[0006] By adopting the above technical solution, multiple first connecting parts are provided around the through hole. By selectively connecting the second connecting part to one of the first connecting parts, the installation angle of the external pipeline can be adjusted, thereby facilitating connection to external heat pump devices, tap water pipelines or user heating terminals. This can improve the assembly efficiency of the device and match different installation scenarios, thus improving the universality of the device.

[0007] In some embodiments of the present invention, the first connecting portion includes a first connecting hole, the second connecting portion includes a second connecting hole, and the first connecting hole and the second connecting hole are connected by a first connecting member passing through both.

[0008] By adopting the above technical solution, the first connecting part is designed to include a first connecting hole, and the second connecting part is designed to include a second connecting hole. The first connecting part is used to connect the first connecting hole and the second connecting hole, which has a simple structure and is easy to assemble.

[0009] In some embodiments of the present invention, the first connector is detachably connected to the first connecting hole and the second connecting hole, respectively.

[0010] By adopting the above technical solution, it is convenient to assemble and disassemble the first connector with the first connecting hole and the second connecting hole respectively.

[0011] In some embodiments of the present invention, the external pipeline includes a first pipe located inside the machine body and a second pipe located outside the machine body. The second pipe is used to connect the heat pump device, the tap water pipeline, or the user heating terminal. The first pipe and the second pipe are detachably connected, and the first pipe and / or the second pipe are provided with the second connection hole.

[0012] By adopting the above technical solution, the external pipeline is designed as a first pipe body and a second pipe body that can be detachably connected, which facilitates the installation of the external pipeline on the back plate.

[0013] In some embodiments of the present invention, the first pipe body is provided with a first pipe connector, the second pipe body is provided with a second pipe connector that is inserted and mated with the first pipe connector, the outer wall surface of the first pipe connector is provided with a first connecting flange, the outer wall surface of the second pipe connector is provided with a second connecting flange, the first connecting flange is located inside the machine body, the second connecting flange is located outside the machine body, both the first connecting flange and the second connecting flange are provided with a second connecting hole, and the first connector passes through the second connecting hole of the first connecting flange and the second connecting hole of the second connecting flange.

[0014] The above technical solution provides second connecting holes on both the first connecting flange and the second connecting flange. The first connector passes through the first connecting hole and the two second connecting holes, thereby fixing the first tube and the second tube to the back plate. This not only simplifies the structure but also improves the installation stability of the first tube and the second tube.

[0015] In some embodiments of the present invention, the second tube body includes a first tube portion and a second tube portion that intersect axially. When the second connecting portion is connected to the first connecting portion, the second tube portion extends along the height direction or width direction of the back plate and extends out of the outer side of the body.

[0016] By adopting the above technical solution, the second tube extends along the height or width direction of the back plate and protrudes out of the outside of the body, so that one end of the second tube is located at the top or side of the rear side of the body, which facilitates docking with external structures.

[0017] In some embodiments of the present invention, the second tube is provided with a switch valve for opening and closing its flow path at one end extending from the machine body, and the switch valve is provided with a drain port.

[0018] Using the above technical solution, the external pipeline can be closed by switching the valve, and sewage can be discharged using the drain port of the switching valve.

[0019] In some embodiments of the present invention, the second tube portion has a threaded interface at one end extending from the body.

[0020] By adopting the above technical solution, the threaded interface facilitates the connection of the second pipe section to external structures.

[0021] In some embodiments of the present invention, the second tube is fixed to the back plate by fasteners located on the back plate, and a first insulation member is sleeved on the second tube. The first insulation member is configured to move axially along the second tube to avoid the fasteners.

[0022] By adopting the above technical solution, the first insulation component is fitted onto the second pipe section. After determining the installation angle of the second pipe section, the position of the first insulation component on the second pipe section can be adjusted to avoid the fastener, thereby facilitating the fastener to fix the second pipe section.

[0023] In some embodiments of the present invention, the first insulation member includes a detachable first part and a second part, the first part and the second part being arranged axially along the second tube portion.

[0024] By adopting the above technical solution, the first insulation component is designed to be detachable into two parts, which makes it easier to adjust the position of the first insulation component, and fasteners can be avoided between the two parts.

[0025] In some embodiments of the present invention, the second tube extends out of the outer side of the body along one side of the width direction of the back plate, and the fastener is installed on one side edge of the body in the width direction. The fastener fixes the second tube and is located between the first part and the second part.

[0026] By adopting the above technical solution, the positions of the first part and the second part are adjusted to form a gap for accommodating the fastener, which facilitates the connection between the fastener and the second pipe.

[0027] In some embodiments of the present invention, the second tube extends out of the outer side of the body along one side of the height direction of the back plate, the fastener is installed on the top edge of the body, the fastener fixes the second tube, and the first part and the second part are located on one side of the fastener and are adjacent to each other.

[0028] By adopting the above technical solution, the positions of the first part and the second part are adjusted so that they are adjacent to each other and form a whole, freeing up space for accommodating the fastener and facilitating the connection between the fastener and the second pipe section.

[0029] In some embodiments of the present invention, the second tube is further provided with a second heat insulation member, which wraps around the second tube and the first heat insulation member.

[0030] By adopting the above technical solution, the insulation performance of the second pipe section can be further improved by using the second insulation component.

[0031] In some embodiments of the present invention, the hydraulic module component includes a buffer water tank, an expansion compensation unit, a heating distribution unit, and a constant pressure water supply unit installed in the machine body; the expansion compensation unit is connected to the buffer water tank and is used to receive the increased water volume after the buffer water tank expands due to heat; the heating distribution unit is connected to the buffer water tank, the heat pump device, and the user heating terminal respectively, and is used to distribute the hot water from the buffer water tank and the hot water from the heat pump device to the user heating terminal; the constant pressure water supply unit is connected to the heating distribution unit and the tap water pipeline, and is used to supply tap water to the heating distribution unit.

[0032] By adopting the above technical solution, the water storage, expansion compensation, and constant pressure water supply at the heating end are integrated into one unit, which reduces the space occupied by each pipeline and the amount of manual installation work on site, thereby improving the construction efficiency and quality of the heating end device, and thus improving the stability and reliability of the operation of each unit.

[0033] In some embodiments of the present invention, the heating distribution unit is at least partially located in the upper space of the body, the buffer water tank is located in the middle space of the body, the expansion compensation unit is located in the middle space and / or lower space of the body, and the constant pressure water supply unit is located in the lower space of the body.

[0034] By adopting the above technical solution, the vertical layered design arranges each unit according to functional logic. The heating distribution unit is located at the top to facilitate connection with other units and user heating terminals, while the expansion compensation unit and constant pressure water supply unit, which are directly related to water, are placed in the middle and lower parts, which conforms to the pressure principle and improves safety.

[0035] In some embodiments of the present invention, the plurality of external pipes include a heating outlet pipe and a heating return pipe of the heating distribution unit. The heating outlet pipe is provided with at least one heating outlet for connecting to a first interface of a user's heating terminal. The heating return pipe is provided with at least one heating return port for connecting to a second interface of a user's heating terminal. The heating outlet pipe and the heating return pipe are located in the upper space of the body. The number of through holes is plurality of, including a first through hole through which the heating outlet pipe passes and a second through hole through which the heating return pipe passes. The first through hole and the second through hole are located in the upper part of the back plate.

[0036] By adopting the above technical solution, the first and second through holes are located on the upper part of the back plate, so that the heating water outlet pipe and the heating water return pipe are located in the upper space of the body, which facilitates the connection with the rest of the heating distribution unit.

[0037] In some embodiments of the present invention, the number of heating outlet pipes, heating return pipes, first through holes and second through holes are all two. One first through hole and one second through hole are located on one side of the back plate along its own width direction, and the other first through hole and the other second through hole are located on the other side of the back plate along its own width direction. The first through hole and the second through hole located on the same side have a spacing along the width direction and the length direction of the back plate.

[0038] By adopting the above technical solution, the efficiency of heating water inlet and outlet pipes and heating water return pipes can be improved.

[0039] In some embodiments of the present invention, the plurality of external pipes include a heat pump outlet water flow path and a heat pump return water flow path of the heating distribution unit. The heat pump outlet water flow path is connected to the heat pump device and the heating outlet water pipe respectively, and is used to receive the inlet water of the heat pump device. The heat pump return water flow path is connected to the heat pump device and the buffer water tank respectively, and is used to discharge water to the heat pump device. The plurality of through holes include a third through hole through which the heat pump outlet water flow path passes and a fourth through hole through which the heat pump return water flow path passes. The third through hole and the fourth through hole are located at the middle of the back plate along the height direction and the width direction, and the fourth through hole and the third through hole have a distance between them along the width direction and the height direction of the back plate.

[0040] By adopting the above technical solution, the third and fourth through holes are located in the middle of the back plate, so that the heat pump outlet water flow path and the heat pump return water flow path are located in the middle of the body, which facilitates the connection of the buffer water tank.

[0041] In some embodiments of the present invention, from one side to the other in the width direction of the back plate, a first through hole, a second through hole, a third through hole, a fourth through hole, another first through hole, and another second through hole are arranged in sequence, and the spacing between any two adjacent through holes is equal.

[0042] By adopting the above technical solution, multiple through holes are designed as equidistant structures in the width direction of the back plate, which can make the pipeline layout more orderly.

[0043] In some embodiments of the present invention, the plurality of external pipes include a water storage return flow path and a water storage outlet flow path of the heating distribution unit. The water storage return flow path is connected to the buffer water tank and the external user-end water tank respectively, and is used to supply water to the user-end water tank. The water storage outlet flow path is connected to the buffer water tank and the external user-end water tank respectively, and is used to receive water from the user-end water tank. The plurality of through holes include a fifth through hole through which the water storage return flow path passes and a sixth through hole through which the water storage outlet flow path passes. The fifth through hole is located in the middle of the back plate and below the third through hole and the fourth through hole. The sixth through hole is located in the lower part of the back plate.

[0044] By adopting the above technical solution, the fifth through hole is located in the middle of the back plate and the sixth through hole is located in the lower part of the back plate, so that the return water of the water storage return flow path can enter from the upper part of the buffer water tank, and the water outlet of the water storage outlet flow path can flow out from the lower part of the water tank, so that the water flow in the buffer water tank forms a reasonable convection and ensures a balanced and stable water temperature.

[0045] In some embodiments of the present invention, the plurality of external pipes include a tap water supply path and a tap water return path for the constant pressure water supply unit. The tap water supply path is connected to the tap water source and the heating distribution unit, respectively, and is used to supply tap water to the heating distribution unit. The tap water return path is connected to the tap water supply path and is used to discharge the tap water from the tap water supply path. The plurality of through holes include a seventh through hole through which the tap water supply path passes and an eighth through hole through which the tap water return path passes. The seventh through hole and the eighth through hole are located at the lower part of the back plate.

[0046] By adopting the above technical solution, the seventh and eighth through holes are located at the bottom of the back plate, which not only facilitates the connection between the tap water return flow path and the tap water replenishment flow path to the rest of the constant pressure water replenishment unit, but also facilitates the connection to the external tap water replenishment flow path.

[0047] Secondly, the present invention provides a heating, ventilation and air conditioning (HVAC) device, including a heating end hydraulic device as described in any of the above technical solutions. Attached Figure Description

[0048] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of the heating household hydraulic device provided for the implementation of the present invention; Figure 2 A schematic diagram of the structure of the heating household hydraulic device after removing the side plate, provided for the implementation of the present invention; Figure 3 A schematic diagram of a portion of the structure of the heating household hydraulic device provided for the implementation of the present invention, viewed from one perspective. Figure 4 A schematic diagram of a portion of the structure of the heating household hydraulic device provided for the implementation of the present invention from another perspective; Figure 5 for Figure 4 Partial structural diagram; Figure 6 A schematic diagram of the flow path of a heating household hydraulic device provided for the implementation of this invention; Figure 7 A partial connection diagram of the first limiting structure and the first expansion tank of the heating household hydraulic device provided for the implementation of the present invention; Figure 8 A partial connection diagram of the second limiting structure and the second expansion tank of the heating household hydraulic device provided for the implementation of the present invention; Figure 9 A schematic diagram showing the connection of the base plate, the third limiting structure, and the third expansion tank of the heating household hydraulic device provided for the implementation of the present invention; Figure 10 A schematic diagram of the base plate and the third limiting structure of the heating household hydraulic device provided in this invention; Figure 11 A schematic diagram of an installation method for the heating outlet pipe and heating return pipe located on the left side of the back plate of the heating household hydraulic device provided for the implementation of the present invention; Figure 12 A schematic diagram of another installation method for the heating outlet pipe and heating return pipe located on the left side of the back plate of the heating household hydraulic device provided for the implementation of the present invention; Figure 13 A schematic diagram of an installation method for the heating outlet pipe and heating return pipe located on the right side of the back plate of the heating household hydraulic device provided for the implementation of the present invention; Figure 14 A schematic diagram of another installation method for the heating outlet pipe and heating return pipe located on the right side of the back plate of the heating end hydraulic device provided for the implementation of the present invention; Figure 15 A schematic diagram of an installation method of the heat pump outlet water flow path and heat pump return water flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 16 A schematic diagram of another installation method of the heat pump outlet water flow path and heat pump return water flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 17 A schematic diagram of another installation method of the heat pump outlet water flow path and heat pump return water flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 18 A schematic diagram of another installation method of the water storage return flow path and water storage outlet flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 19 A schematic diagram of another installation method of the water storage return flow path and water storage outlet flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 20 A schematic diagram of another installation method of the tap water supply path and tap water return path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 21 A schematic diagram of another installation method of the tap water supply flow path and tap water return flow path of the heating household hydraulic device provided for the implementation of the present invention on the back plate; Figure 22 A partial structural diagram of the external pipeline of the heating household hydraulic device on the back plate, provided for the implementation of the invention; Figure 23 A partial structural schematic diagram of the external pipeline of the heating household hydraulic device provided for the implementation of the invention; Figure 24 A schematic diagram of the first pipe joint of the heating household hydraulic device provided for the implementation of the invention; Figure 25 A schematic diagram of the second pipe joint of the heating household hydraulic device provided for the implementation of the invention.

[0049] The attached figures are labeled as follows: 100. Heating household hydraulic device; 10. Body; 11. Main frame; 111. First crossbeam; 112. Second crossbeam; 113. Third crossbeam; 114. Fourth crossbeam; 12. Top plate; 13. Bottom plate; 14. Side plate; 141. First through hole; 142. First connecting part; 143. Second through hole; 144. Third through hole; 145. Fourth through hole; 146. Fifth through hole; 147. Sixth through hole; 148. Seventh through hole; 149. Eighth through hole; 15. Support frame; 16. First limiting structure; 161. First limiting member; 1611. First supporting part; 1612. First limiting part; 17. Second limiting structure; 171. Second limiting member; 1711. Second supporting part; 1712. Second limiting part; 18. Third limiting structure; 181. Support member; 182. Third limiting member; 1821. Third limiting part; 1822. Fourth limiting part; 20. Buffer water tank; 30. Expansion compensation unit; 31. First expansion tank; 311. First annular flange; 32. Second expansion tank; 321. Second annular flange; 33. Third expansion tank; 331. Third annular flange; 34. Compensation pipeline; 341. Second safety valve; 3411. First drain outlet; 342. Main pipeline; 343. Sub-pipeline; 40. Heating distribution unit; 41. Heating outlet pipe; 411. First sub-pipe; 4111. Heating outlet; 412. Water pump; 42. Heating return pipe; 421. Second sub-pipe; 4211. Heating return outlet; 43. First connecting pipe; 44. First three-way valve; 45. Water storage and return flow path; 451. First pipe body; 4511. First pipe joint; 4512. First connecting flange; 4513. Slot; 4 52. Second pipe body; 4521. Second pipe joint; 4522. Second connecting flange; 4523. First pipe section; 4524. Second pipe section; 4525. Switch valve; 4526. Annular boss; 453. Second connecting part; 4531. Second connecting hole; 454. First connecting piece; 46. Water storage outlet flow path; 47. Heat pump outlet flow path; 48. Heat pump return flow path; 481. First filter; 49. Second three-way valve; 50. Constant pressure water supply unit; 51. Tap water supply path; 511. First safety valve; 512. Check valve; 513. Second filter; 5131. Drain valve; 5132. First connector; 5133. Second connector; 514. Isolation drain valve; 52. Tap water return path; 521. Fourth expansion tank; 60. Control unit; 61. Electrical control components; 62. Power distribution components; 70. Fastener; 80. First insulation component; 81. First part; 82. Second part. Detailed Implementation

[0050] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0051] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0052] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0053] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0054] Combined with appendix Figure 1-10 As shown, this embodiment provides a heating terminal hydraulic device 100, which is mainly used in the heating water system of HVAC equipment, specifically a terminal for integrated centralized heating and domestic hot water. The heating terminal hydraulic device 100 of this embodiment can not only connect to user heating terminals (such as radiators, underfloor heating, or fan coil units), but also connect to external tap water pipes and the user's water tank (not shown in the figure).

[0055] The heating household hydraulic device 100 in this embodiment includes a body 10 and a hydraulic module component. The hydraulic module component includes functional units such as a buffer water tank 20, an expansion compensation unit 30, a heating distribution unit 40, a constant pressure water supply unit 50, and a control unit 60.

[0056] The body 10 includes a main frame 11, a top plate 12, a bottom plate 13, and multiple side plates 14. The main frame 11 can be a rectangular or other shaped frame, and a support frame 15 can be installed at the bottom of the main frame 11. The top plate 12 is installed on the top of the main frame 11, and the bottom plate 13 is installed on the bottom wall of the main frame 11. Multiple side plates 14 are installed around the main frame 11 and are located between the top plate 12 and the bottom plate 13, so that the main frame 11, top plate 12, bottom plate 13, and multiple side plates 14 form a box-like structure, which is installed on the support frame 15.

[0057] The buffer water tank 20, expansion compensation unit 30, heating distribution unit 40, constant pressure water supply unit 50, and control unit 60 are all installed inside the body 10. The heating distribution unit 40 and constant pressure water supply unit 50 each have multiple pipes. Because some pipes are obstructed by the buffer water tank 20, expansion compensation unit 30, and control unit 60, etc., therefore... Figure 1-5Not all pipes are labeled; for information on the pipes of the aforementioned functional units, please refer to [reference needed]. Figure 6 (The arrows in the diagram indicate the direction of water flow.)

[0058] The buffer tank 20 can be a water storage structure such as a water tank, and its main function is to store hot water, buffer water temperature and pressure fluctuations, and assist the system in venting and stabilizing pressure. Similarly, the user-end water tank can also be a water tank, except that it is located outside the body 10 in this embodiment, serving as an expandable external structure.

[0059] The expansion compensation unit 30 is connected to the buffer tank 20 and is used to absorb the increased water volume after the buffer tank 20 expands due to heat. In some embodiments, the expansion compensation unit 30 includes one (this embodiment is not shown in the figure) or multiple expansion tanks.

[0060] The heating distribution unit 40 is used to connect the buffer water tank 20, the external heat pump device, and the user's heating terminal. The heating distribution unit 40 is used to distribute the hot water from the buffer water tank 20 and the heat pump device to the user's heating terminal.

[0061] The constant pressure water supply unit 50 is used to connect the heating distribution unit 40 and the external tap water pipeline, and the constant pressure water supply unit 50 is used to supply tap water to the heating distribution unit 40.

[0062] The control unit 60 is electrically connected to the expansion compensation unit 30, the heating distribution unit 40, and the constant pressure water supply unit 50, respectively. The electrical connection can be a line connection or a wireless connection. The control unit 60 is used to open and close the expansion compensation unit 30, the heating distribution unit 40, and the constant pressure water supply unit 50.

[0063] Compared to the method where each unit and module requires separate pipe installation and layout, the structure described in this embodiment integrates water storage, expansion compensation, heating distribution, constant pressure water supply and control into one unit, which greatly simplifies the heating water circuit structure at the household end, reduces on-site pipe and fitting connections, reduces installation complexity and manual dependence, and at the same time achieves stable hot water distribution, system pressure compensation and automatic regulation, thereby improving the system integration, operational reliability and construction efficiency.

[0064] It should be noted that the connection of the various units in this embodiment refers to interconnection through pipelines. However, the connection of the various pipelines or flow paths in this embodiment refers to direct or indirect connection and interconnection.

[0065] Combined with appendix Figure 2-4 As shown, in some embodiments, the body 10 of this embodiment includes a main frame 11 and a first crossbeam 111 and a second crossbeam 112 installed from top to bottom on the main frame 11. The first crossbeam 111 and the second crossbeam 112 can be horizontal crossbeams after the device is installed at the user's home.

[0066] The number of first crossbeams 111 and second crossbeams 112 can both be multiple. For example, four first crossbeams 111 can form a rectangular frame, and four second crossbeams 112 can form a rectangular frame.

[0067] The upper space is defined between the first crossbeam 111 and the top of the main frame 11. Specifically, the upper space is enclosed by the first crossbeam 111, the top plate 12, part of the side plate 14, and part of the main frame 11. The middle section is defined between the second crossbeam 112 and the first crossbeam 111. Specifically, the middle section is enclosed by the side plate 14 and part of the main frame 11 between the second crossbeam 112 and the first crossbeam 111. The lower space is defined between the second crossbeam 112 and the bottom of the main frame 11. Specifically, the lower space is enclosed by the second crossbeam 112, the bottom plate 13, part of the side plate 14, and part of the main frame 11.

[0068] By independently arranging the control unit 60 in the upper space, the control components can be physically isolated from the water circuit components below, effectively reducing the risk of water leakage and condensation corrosion to electrical components, improving the safety and service life of the device's electrical operation, and facilitating electrical wiring, parameter debugging, and fault detection.

[0069] The heating distribution unit 40 is arranged in the upper space and the middle, which can work closely with the control unit 60 above to achieve rapid response and precise control of actuators such as valves and water pumps 412. It can also connect with the adjacent expansion compensation unit 30 and constant pressure water supply unit 50 through the through space to shorten the length of the internal connecting pipes and reduce the number of pipe bends and joints.

[0070] The expansion compensation unit 30 is arranged in the middle and lower spaces, and the constant pressure water supply unit 50 is arranged in the lower space. This concentrates the core hydraulic components such as system pressure regulation, water volume compensation, and expansion absorption in the lower part of the body 10. On the one hand, this can conform to the pipeline routing of gravity flow and conventional hydraulic systems, improving the efficiency of water supply, pressure stabilization, and expansion compensation. On the other hand, it lowers the center of gravity of the whole unit, enhances the structural stability of the device during installation and operation, and at the same time provides sufficient operating space for external pipelines and maintenance operations.

[0071] The interconnected upper, middle, and lower spaces facilitate unified planning and centralized layout of internal pipelines, simplify assembly processes, and make subsequent inspection, maintenance, and component replacement easier.

[0072] As can be seen from the above description, this embodiment, through the coordinated arrangement of the main frame 11, the first crossbeam 111 and the second crossbeam 112, divides the body 10 into interconnected upper, middle and lower spaces from top to bottom, realizing a clear division and orderly layout of the internal functional areas of the device, providing dedicated installation areas for each functional unit, avoiding positional interference between different functional units during installation and operation, and ensuring the independence and stability of each component's operation.

[0073] In some embodiments, the expansion compensation unit 30 includes a plurality of expansion tanks for connecting the buffer tank 20, the plurality of expansion tanks including a first expansion tank 31, a second expansion tank 32 and a third expansion tank 33 arranged from top to bottom.

[0074] The first expansion tank 31 is located in the middle, the second expansion tank 32 is partly located in the middle and partly located in the lower space, and the third expansion tank 33 is located in the lower space. The width direction of the first expansion tank 31, the second expansion tank 32 and the third expansion tank 33 are consistent with the height direction of the body 10.

[0075] The vertical layered space of the body 10 is used to achieve the orderly arrangement of multiple expansion tanks. While meeting the total expansion compensation volume required by the buffer water tank 20, the space occupied by the expansion compensation unit 30 in the horizontal direction of the body 10 is reduced.

[0076] Furthermore, the multiple expansion tanks are arranged in layers along the height direction, which can make the connecting pipelines between each expansion tank and the buffer water tank 20 uniform and neatly arranged, shortening the pipeline length and reducing redundant bends in the pipeline.

[0077] The first expansion tank 31, the second expansion tank 32, and the third expansion tank 33 all have pre-reserved disassembly and assembly space above them, and the height L1 of the disassembly and assembly space is not less than 60mm. The disassembly and assembly space refers to the interval between the above expansion tanks and the body 10, other pipelines, or components.

[0078] This structure avoids the aforementioned expansion tank from creating space obstruction and interference within the body 10, facilitating the disassembly and maintenance of the expansion tank, and also making it convenient to replenish the expansion tank with gas.

[0079] In some embodiments, the distance between the third expansion tank 33 and the base plate 13 is not less than 5 mm (not marked because the distance is too small). This ensures that the third expansion tank 33 and the base plate 13 maintain a gap of not less than 5 mm, which reduces the possibility of water accumulation forming a water film and corroding the third expansion tank 33, thereby extending the service life of the third expansion tank 33.

[0080] In some embodiments, the control unit 60 includes an electronic control component 61 and a power distribution component, the lower end of the electronic control component 61 being hinged to the body 10 and configured to be able to flip to be located outside the body 10.

[0081] The control unit 60 is designed to be flip-out, which not only facilitates the operation and maintenance of the control unit 60, but also facilitates the operation and maintenance of the pipeline inside the control unit 60, greatly improving the efficiency of operation and maintenance.

[0082] The power distribution component 62 is used to connect the indoor power supply and then distribute it to the various electrical devices in the heat pump heating water system. The control component is used to control the normal operation of the various components inside the unit 10.

[0083] In some embodiments, the lower end of the electronic control component 61 is hinged to the inner side of the first crossbeam 111, and the first crossbeam 111 supports the electronic control component 61 when the electronic control component 61 is rotated outward to the maximum angle of the body 10.

[0084] This structure allows the control unit 60 to be flipped over and supported by a crossbeam, which improves the stability of the control unit 60 after flipping over, and also provides a stable operating platform for maintenance personnel, thereby improving the safety and convenience of maintenance.

[0085] In some embodiments, the expansion tank of this embodiment can be installed on the body 10 via a pull-out structure, which is configured to allow the expansion tank to be pulled out of the body 10.

[0086] Specifically, one or more of the first expansion tank 31, the second expansion tank 32, and the third expansion tank 33 may be equipped with a pull-out structure.

[0087] The expansion tank is installed to the machine body 10 via a pull-out structure, allowing it to be directly pulled out of the machine body 10 for inspection and replacement without removing other parts, thus facilitating the maintenance of the expansion tank.

[0088] Combined with appendix Figure 7-10 As shown, in some embodiments, the body 10 is provided with multiple limiting structures. The expansion tank is installed on the limiting structure and is detachably connected to the body 10. The limiting structure is used to limit the displacement of the expansion tank in the thickness direction. One end of the expansion tank along the length direction is detachably connected to the body 10. When the detachable connection between the expansion tank and the body 10 is released, the limiting structure and the expansion tank are guided and engaged along the length direction of the expansion tank so that the expansion tank can be pulled out of the body 10 under the guidance of the limiting structure.

[0089] The expansion tank is detachably connected to the body 10 by using a limiting structure to restrict the displacement in the thickness direction. The limiting structure and the expansion tank are designed to guide each other, so that after the expansion tank is detached from the body 10, it is easy to pull out the expansion tank in a preset direction.

[0090] When there are three expansion tanks, there are also three limiting structures: a first limiting structure 16, a second limiting structure 17, and a third limiting structure 18. Specifically, the first expansion tank 31 is installed on the first limiting structure 16, the second expansion tank 32 is installed on the second limiting structure 17, and the third expansion tank 33 is installed on the third limiting structure 18.

[0091] In some embodiments, the first limiting structure 16 includes a first limiting member 161. The first limiting member 161 may be a structure similar to a channel steel, with a cross-sectional shape approximately U-shaped. The first limiting member 161 includes a first supporting portion 1611 connected at an angle and a first limiting portion 1612 connected to both sides of the first supporting portion 1611.

[0092] The thickness direction of the first expansion tank 31 intersects the height direction of the body 10. The bottom of the first expansion tank 31 is located on the first support portion 1611. One of the first limiting portions 1612 engages with one side of the first expansion tank 31 in the thickness direction, thereby limiting one sub-direction of the thickness direction of the first expansion tank 31. The other sub-direction of the thickness direction of the first expansion tank 31 can be limited by another first limiting portion 1612. After the first expansion tank 31 is connected to the body 10, the first limiting portion 1612 and the first support portion 1611 can limit the first expansion tank 31 and maintain the stability of the position of the first expansion tank 31.

[0093] In this embodiment, the width of the first expansion tank 31 is arranged along the height of the body 10. The side wall of the first expansion tank 31 is provided with a first annular flange 311 surrounding itself. Along the width of the first expansion tank 31, one side (the lower side in the figure) of the first annular flange 311 is placed on the first support portion 1611. In this way, the first annular flange 311 not only serves as a support point for the first expansion tank 31, but also improves the structural strength of the first expansion tank 31.

[0094] In some embodiments, the second limiting structure 17 includes a second limiting member 171, which may have the same structure as the first limiting member 161 described above.

[0095] For example, the second limiting member 171 in the figure is also a channel steel structure with an approximately U-shaped cross section. In this case, the second limiting member 171 includes a second supporting part 1711 and second limiting parts 1712 located on both sides of the second supporting part 1711 along the width direction. The two second limiting parts 1712 and the second supporting part 1711 surround the slide groove. The two second limiting parts 1712 are the side walls of the slide groove, and the second supporting part 1711 is the bottom wall of the slide groove.

[0096] In this embodiment, the bottom of the second expansion tank 32 is located in the groove. The second support part 1711 serves as the support base for the second expansion tank 32, and the second limiting part 1712 limits both sides of the second expansion tank 32 in the thickness direction. This not only simplifies the structure but also maintains the stability of the position of the first expansion tank 31 after the second expansion tank 32 is connected to the body 10.

[0097] In this embodiment, the width of the second expansion tank 32 is arranged along the height of the body 10. The side wall of the second expansion tank 32 is provided with a second annular flange 321 surrounding itself. Along the width of the second expansion tank 32, one side of the second annular flange 321 is placed on the second support portion 1711 and located between the two second limiting portions 1712. The second annular flange 321 not only serves as a support point for the second expansion tank 32, but also improves the structural strength of the second expansion tank 32.

[0098] In some embodiments, the thickness direction of the third expansion tank 33 is set along the height direction of the body 10, the side wall of the third expansion tank 33 is provided with a third annular flange 331 surrounding itself, and the third limiting structure 18 includes two support members 181 and a third limiting member 182, both of which are mounted on the base plate 13.

[0099] The cross-sectional shape of the support member 181 is approximately Z-shaped. The top of the support member 181 is provided with a support portion extending toward the third expansion tank 33. Along the width direction of the third expansion tank 33, the two sides of the third annular flange 331 are located on the two support members 181.

[0100] The third limiting member 182 is located at the end of the third expansion tank 33 opposite to the connection between itself and the body 10, and abuts against the upper surface of the third annular flange 331. The two supporting members 181 not only support the third expansion tank 33, but also create a gap between the third expansion tank 33 and the base plate 13. The third expansion tank 33 can be supported and guided during the removal process, while the third limiting member 182 can limit the upward displacement of the third expansion tank 33, thereby improving the stability of the third expansion tank 33 after it is installed in the body 10.

[0101] In some embodiments, the third limiting member 182 of this embodiment includes a third limiting part 1821 and a fourth limiting part 1822 connected at an angle. The third limiting part 1821 is disposed facing the third expansion tank 33 and is used to limit the displacement of the third expansion tank 33 along its own length direction. The fourth limiting part 1822 is located above the third annular flange 331 and abuts against the upper surface, and is used to limit the upward displacement of the third expansion tank 33.

[0102] Of course, the structure of the third limiting member 182 in this embodiment is not limited to this. As shown in the figure, the fourth limiting part 1822 is provided with reinforcing ribs on both sides along the width direction of the third expansion tank 33, so that the third limiting member 182 can also approximate the shape of a box to improve the structural strength of the third limiting member 182.

[0103] In addition, to simplify the pipeline structure, the compensation pipeline 34 of the expansion compensation unit 30 includes a main pipeline 342 and multiple sub-pipelines 343 connected in parallel to the main pipeline. The main pipeline 342 is connected to the buffer water tank 20, and the multiple sub-pipelines 343 are detachably connected to multiple expansion tanks one by one.

[0104] This structure, which connects multiple sub-pipes 343 to a main pipe 342, simplifies the piping structure of the expansion compensation unit 30, and the detachable connection between the sub-pipes and the expansion tank also facilitates the removal of the expansion tank from the body 10.

[0105] Combined with appendix Figure 6 As shown, the heating distribution unit 40 in this embodiment includes a heating outlet pipe 41 and a heating return pipe 42. The heating outlet pipe 41 is provided with at least one heating outlet 4111 for connecting to a user's heating terminal, and the heating return pipe 42 is provided with at least one heating return outlet for connecting to a user's heating terminal. The independent heating outlet pipe 41 and return pipe can adapt to the connection needs of different user terminals.

[0106] Taking the structure of the two heating water outlets 4111 and two heating water return outlets in the diagram as an example, specifically, the heating water outlet pipe 41 includes a main outlet pipe and two first sub-pipes 411. Each of the two first sub-pipes 411 is equipped with a water pump 412, and each of the two first sub-pipes 411 has a heating water outlet 4111 at one end. Similarly, the heating water return pipe 42 includes a main return pipe and two second sub-pipes 421, each of the two second sub-pipes 421 having a heating water return outlet 4211. One of the first sub-pipes 411 and one of the second sub-pipes 421 are connected via a second three-way valve 49.

[0107] In addition, the heating distribution unit 40 also includes a first connecting pipe 43, a first three-way valve 44, a water storage return flow path 45, a water storage outlet flow path 46, a heat pump outlet flow path 47, and a heat pump return flow path 48.

[0108] One end of the first connecting pipe 43 is connected to the heating outlet pipe 41, and the other end of the first connecting pipe 43 is connected to the first interface of the first three-way valve 44. The first connecting pipe 43 is used to return water to the heating outlet pipe 41.

[0109] The inlet of the water storage return flow path 45 is connected to the second interface of the three-way valve. The outlet of the water storage return flow path 45 is used to connect to the external user-end water tank. The inlet of the heat pump outlet flow path 47 is used to connect to the external heat pump device. The outlet of the heat pump outlet flow path 47 is connected to the third interface of the first three-way valve 44.

[0110] The heat pump outlet water flow path 47 is used to receive the inlet water of the heat pump device and distribute the inlet water to the storage water return flow path 45 and the first connecting pipe 43 through the first three-way valve 44, so that the heat storage water return flow path can be used to return water to the user end water tank.

[0111] The inlet of the heat pump return water flow path 48 is connected to the buffer water tank 20, the outlet of the heat pump return water flow path 48 is used to connect the heat pump device, the inlet of the storage water outlet flow path 46 is connected to the user end water tank, and the outlet of the storage water outlet flow path 46 is connected in parallel with the water supply pipeline of the constant pressure water supply unit 50 and together they are connected to the inlet of the heat pump return water flow path 48.

[0112] The water storage outlet path 46 is used to receive water from the external user-end water tank and transport it to the heat pump return path 48. The heat pump return path 48 is used to receive water from the buffer tank 20, the water storage outlet path 46, and the tap water replenishment path 51. This structure achieves controllable switching and connection integration between the first connecting pipe 43, the water storage return flow path 45, and the heat pump outlet flow path 47 through the first three-way valve 44. It can flexibly switch the heating output object and circulation path. At the same time, the first water storage outlet unit and the constant pressure water supply unit 50 are connected in parallel to the heat pump return end, integrating multiple functions such as heating, heat pump heating, and water storage, thereby improving the system integration and the flexibility of the operation mode.

[0113] In some embodiments, a first filter 481 is provided on the heat pump return water path 48. The first filter 481 may be a magnetic filter, which can effectively filter impurities in the return water, protect the heat pump device, and extend its service life.

[0114] In some embodiments, the outlet of the water storage return flow path 45, the inlet of the water storage outlet flow path 46, and the inlet of the heat pump outlet flow path 47 are located on the same side of the body 10.

[0115] By concentrating the interfaces connecting the external user-end water tank and the heat pump unit on the same side of the unit body 10, the connection of external pipelines is simplified, making on-site installation faster.

[0116] It is understood that in this embodiment, "outlet" refers to the pipe port from which water flows out, and "inlet" refers to the pipe port from which water flows in.

[0117] Combined again with the appendix Figure 6As shown, in some embodiments, the constant pressure water supply unit 50 includes a tap water supply path 51 and a tap water return path 52. The inlet of the tap water supply path 51 is used to connect to a tap water source, and the outlet of the tap water supply path 51 is used to connect to the heating distribution unit 40. The inlet of the tap water return path 52 is connected to the tap water supply path 51, and the outlet of the tap water return path 52 is used to discharge tap water.

[0118] This structure enables the constant pressure water supply unit 50 to form a dual-path structure integrating water inlet and outlet, which can realize automatic water supply and safe overflow, prevent tap water backflow, and ensure the safety and reliability of the device operation.

[0119] Combined with appendix Figure 4-6 As shown, in some embodiments, from the inlet to the outlet of the tap water supply flow path 51, a first safety valve 511, a check valve 512, a second filter 513, and an isolation drain valve 514 are sequentially provided on the tap water supply flow path 51. In this embodiment, the check valve 512 and the isolation drain valve 514 are configured to switch between open and closed states, and the second filter 513 is configured to be detachably connected to the tap water supply flow path 51.

[0120] The tap water supply flow path 51 is equipped with a first safety valve 511, a check valve 512, a second filter 513, and an isolation drain valve 514 in sequence, forming a complete function of protection, water supply, filtration, and sewage discharge, which effectively improves the quality of the water supply and the safety of the device.

[0121] Furthermore, when the second filter 513 needs to be repaired or replaced, the check valve 512 and the isolation drain valve 514 can be closed directly to stop the flow of water in the tap water supply path 51, and then the second filter 513 can be removed directly.

[0122] In some embodiments, the bottom of the second filter 513 is provided with a drain valve 5131, which can be a mechanical valve or an electronic valve. The drain valve 5131 can drain the accumulated water and release the pressure when the filter element of the second filter 513 is replaced, thereby reducing the possibility of contamination caused by residual water and improving the convenience of maintenance.

[0123] In some embodiments, the second filter 513 has a first connector 5132 for connecting the check valve 512 and a second connector 5133 for connecting the isolation drain valve 514. The first connector 5132 is detachably connected to the check valve 512, and the second connector 5133 is detachably connected to the isolation drain valve 514.

[0124] The first connector 5132 and the check valve 512 can be detachably connected by bolts, plugs, or snaps. Similarly, the second connector 5133 and the isolation drain valve 514 can also be detachably connected by bolts, plugs, or snaps. This detachable connection makes the second filter 513 easier to install and remove, allowing for filter element replacement without complicated tools, thus facilitating the maintenance and replacement of the second filter 513.

[0125] In some embodiments, both the first connector 5132 and the second connector 5133 are provided with an exhaust valve (this embodiment is not shown in the figure), or the isolation drain valve 514 is provided with an openable and closable exhaust port (this embodiment is not shown in the figure).

[0126] The vent valves of the first connector 5132 and the second connector 5133, or the isolation drain valve 514 with a vent, can effectively discharge the gas in the second filter 513, avoid air blockage, make the water flow smoother, and improve the filtration efficiency.

[0127] In some embodiments, a fourth expansion tank 521 is provided on the tap water return flow path 52. The fourth expansion tank 521 can stabilize the pressure of the domestic water system, avoid pressure fluctuations from affecting the water usage experience, and improve the stability of the domestic water system.

[0128] In some embodiments, the fourth expansion tank 521 of this embodiment is located in the lower space and partially below the second crossbeam 112. The distance L2 between the fourth expansion tank 521 and the second crossbeam 112 along the height direction of the body 10 is not less than 60mm. The fourth expansion tank 521 has a top space of not less than 60mm to facilitate gas replenishment operation, while also optimizing the spatial layout and improving the compactness of the device.

[0129] Combined again with the appendix Figure 4 As shown, in some embodiments, the expansion compensation unit 30 includes a compensation pipeline 34 and a plurality of expansion tanks. One end of the compensation pipeline 34 is connected to the buffer water tank 20, and the other end is connected to the plurality of expansion tanks respectively.

[0130] The compensation pipeline 34 is equipped with a second safety valve 341, the second safety valve 341 is equipped with a first drain port 3411, the body 10 is equipped with a base plate 13, and the distance L3 between the first drain port 3411 and the base plate 13 is not less than 300mm.

[0131] Setting the discharge port of the first safety valve 511 at a position at least 300mm higher than the base plate 13 ensures that the discharged water is completely drained, reducing the possibility of residual water causing safety hazards and equipment corrosion.

[0132] In some embodiments, the check valve 512 is provided with a second drain port (not shown in the figure), the first safety valve 511 is provided with a third drain port (not shown in the figure), and correspondingly, the body 10 of this embodiment is provided with a main drain port (not shown in the figure). The second drain port and the third drain port are both connected to the main drain port by pipelines. The height of the first drain port 3411 on the body 10 is greater than the height of the main drain port on the body 10.

[0133] This structure connects the discharge ports of multiple safety valves to the same drainage pipe for centralized drainage, simplifying the structure. Moreover, the height of the first drainage port 3411 is higher than that of the main drainage port, which can prevent backflow of drainage and improve the reliability of the overflow function.

[0134] The side panels 14 located on the front side of the body 10 are the front panel, and the side panels 14 located on the rear side of the body 10 are the back panel. The multiple functional units of the hydraulic module component have multiple external pipes. These external pipes extend from the back panel to connect to external heat pump devices, tap water pipes, or user heating terminals. The multiple external pipes include the aforementioned heating outlet pipe 41, heating return pipe 42, heat pump outlet flow path 47, heat pump return flow path 48, storage water return flow path 45, storage water outlet flow path 46, tap water replenishment flow path 51, and tap water return flow path 52.

[0135] To facilitate the connection of the aforementioned external pipeline to external heat pump devices, tap water pipelines, or user heating terminals, the back plate of this embodiment is provided with through holes and a plurality of first connecting portions 142 surrounding the through holes.

[0136] Correspondingly, the external pipeline passes through the through hole and is provided with at least one second connecting part 453. When fixing the external pipeline on the back plate, the angle of the external pipeline is rotated and adjusted according to the position of the external equipment to be connected to the external pipeline. Then, the second connecting part 453 is selectively connected to the nearest first connecting part 142, so that the external pipeline can be easily connected to external heat pump devices, tap water pipes or user heating terminals, which improves the assembly efficiency of the device and can match different installation scenarios, thus improving the universality of the device.

[0137] like Figure 11 and 12 As shown, the heating outlet pipe 41 and heating return pipe 42 located on the left side of the back panel can be extended from the left or right side of the back panel by adjusting the angle to connect to the heat pump device located on the left or right side of the body 10.

[0138] like Figure 13 and 14 As shown, the heating outlet pipe 41 and heating return pipe 42 located on the right side of the back panel can be extended from the left or right side of the back panel by adjusting the angle to connect to the heat pump device located on the left or right side of the body 10.

[0139] like Figure 15-17 As shown, the heat pump outlet water flow path 47 and the heat pump return water flow path 48 can extend from the left, right or top side of the back panel after the angle is adjusted.

[0140] like Figure 18 and 19 As shown, the water storage return flow path 45 and the water storage outlet flow path 46 can extend from the left or right side of the back plate after the angle is adjusted.

[0141] like Figure 20 and 21 As shown, the tap water supply path 51 and the tap water return path 52 can extend from the left or right side of the back panel after the angle is adjusted.

[0142] In some embodiments, the first connecting portion 142 includes a first connecting hole, and the second connecting portion 453 includes a second connecting hole 4531. The first connecting hole and the second connecting hole 4531 are connected by a first connector 454 passing through them.

[0143] The first connector 454 mates with the first connecting hole and the second connecting hole 4531, resulting in a simple structure and convenient assembly. Furthermore, the first connector 454 can be detachably connected to the first connecting hole and the second connecting hole 4531 respectively, facilitating disassembly and assembly.

[0144] The first connector 454 may include a bolt or rivet, and the first connecting hole and the second connecting hole 4531 may be through holes or screw holes, as long as the first connector 454 can pass through the first connecting hole and the second connecting hole 4531 and then be connected.

[0145] Combined with appendix Figure 22-25 As shown, in some embodiments, the aforementioned external pipeline may include a first pipe 451 located inside the body 10 and a second pipe 452 located outside the body 10. The second pipe 452 is used to connect to an external heat pump device, a tap water pipeline, or a user heating terminal. The first pipe 451 and the second pipe 452 are detachably connected, and at least one of the first pipe 451 and the second pipe 452 is provided with a second connection hole 4531.

[0146] It should be noted that, due to the variety of external pipe connections, for ease of understanding, this embodiment uses the water storage and return flow path 45 as an example of an external pipe connection. In this case, the water storage and return flow path 45 includes a first pipe body 451 and a second pipe body 452. Of course, other external pipe connections may also include a first pipe body 451 and a second pipe body 452.

[0147] The external piping is designed as a detachable first pipe body 451 and a second pipe body 452. During assembly, the first pipe body 451 can be fixed to the back plate first, and then the first pipe body 451 and the second pipe body 452 can be connected together. The second pipe body 452 is then fixed to the back plate. Compared with the method of inserting the integrated pipe into the through hole and then welding it separately, this assembly method can improve the assembly efficiency and does not damage the pipe structure.

[0148] In some embodiments, the first pipe body 451 is provided with a first pipe connector 4511, and the second pipe body 452 is provided with a second pipe connector 4521. The inner wall of the first pipe connector 4511 is provided with a slot 4513, and the second pipe connector 4521 is provided with an annular boss 4526. The annular boss 4526 is inserted into a socket to complete the connection between the first pipe connector 4511 and the second pipe connector 4521. Of course, the second pipe connector 4521 may also be provided with a socket, and the first pipe connector 4511 may be provided with an annular boss 4526 (this embodiment is not shown in the figure).

[0149] To facilitate the connection of the first pipe connector 4511 and the second pipe connector 4521 to the back plate, this embodiment provides a first connecting flange 4512 on the outer wall of the first pipe connector 4511 and a second connecting flange 4522 on the outer wall of the second pipe connector 4521. The first connecting flange 4512 is located inside the body 10, and the second connecting flange 4522 is located outside the body 10. Both the first connecting flange 4512 and the second connecting flange 4522 are provided with a second connecting hole 4531. The first connector 454 passes through the second connecting hole 4531 of the first connecting flange 4512 and the second connecting hole 4531 of the second connecting flange 4522.

[0150] During assembly, this structure allows the first tube 451 and the second tube 452 to be fixed to the back plate simultaneously, which not only simplifies the structure but also improves the installation stability of the first tube 451 and the second tube 452.

[0151] In some embodiments, the second tube 452 is an L-shaped tube, and the second tube 452 includes a first tube portion 4523 and a second tube portion 4524 that intersect axially. When the second connecting portion 453 is connected to the first connecting portion 142, the second tube portion 4524 extends along the height direction or width direction of the back plate and extends out of the outside of the body 10.

[0152] Since the heat pump unit, water supply pipes and user heating terminal pipes are generally located on the left, right or top side of the unit body 10, the second pipe section 4524 is extended along the height or width direction of the back plate and extends out of the outside of the unit body 10, so that the free end of the second pipe section 4524 is located on the left, right or top side of the unit body 10, which facilitates the connection of the second pipe section 4524 to the external structure.

[0153] In some embodiments, the end of the second pipe 4524 extending out of the body 10 is provided with a switch valve 4525 for opening and closing its flow path, and the switch valve 4525 is provided with a drain port (not shown in the figure). The external pipe can be closed by the switch valve 4525, and sewage can be discharged using the drain port of the switch valve 4525.

[0154] In addition, a threaded interface can be provided at one end of the second tube 4524 that extends out of the body 10, so that the second tube 4524 can be connected to an external structure.

[0155] In some embodiments, the second tube portion 4524 is fixed to the back plate by a fastener 70 located on the back plate, the fastener 70 being a locking structure such as a clamp.

[0156] To improve thermal insulation performance, a first insulation component 80 is fitted onto the second tube section 4524. The first insulation component 80 can be thermal insulation foam.

[0157] Since the position of the hole connecting the clamp to the back plate on the back plate is constant, and at least two holes need to be set for installing the clamp, after adjusting the angle of the second tube 452, the clamp and the first insulation component 80 are prone to interfere with each other.

[0158] Therefore, in this embodiment, the first insulation member 80 is designed to move axially along the second tube portion 4524 under the action of external force to avoid the fastener 70. In this way, after determining the installation angle of the second tube portion 4524, the position of the first insulation member 80 on the second tube portion 4524 can be adjusted to avoid the fastener 70, thereby facilitating the fastener 70 to fix the second tube portion 4524.

[0159] Furthermore, the first insulation component 80 includes a detachable first part 81 and a second part 82, which are arranged axially along the second tube portion 4524. Designing the first insulation component 80 as detachable in two parts makes it easier to adjust the position of the first insulation component 80, and the fastener 70 can be placed between the two parts to avoid obstruction.

[0160] Combined with appendix Figure 15 As shown, in this embodiment, the second tube 4524 extends out of the outer side of the body 10 along the width direction of the back plate. The fastener 70 is installed on one edge of the body 10 in the width direction. The fastener 70 fixes the second tube 4524 and is located between the first part 81 and the second part 82.

[0161] By adjusting the positions of the first part 81 and the second part 82, a gap is formed between them to accommodate the fastener 70, facilitating the docking of the fastener 70 with the second tube 4524.

[0162] Combined with appendix Figure 16As shown, in this embodiment, the second tube 4524 extends out of the outer side of the body 10 along the height direction of the back plate. The fastener 70 is installed on the top edge of the body 10 and fixes the second tube 4524. The first part 81 and the second part 82 are located on one side of the fastener 70 and are adjacent to each other.

[0163] By adjusting the positions of the first part 81 and the second part 82, they are made to be adjacent to each other and form a whole, freeing up space for accommodating the fastener 70, which facilitates the docking of the fastener 70 with the second tube part 4524.

[0164] In addition, a second insulation element (not shown in the figure) can also be provided on the second tube section 4524. The second insulation element covers the part of the second tube section 4524 except for the first insulation element 80, and the second insulation element also covers the first insulation element 80, thereby further improving the insulation performance of the second tube section 4524.

[0165] To accommodate the aforementioned external components, the back panel of this embodiment is provided with multiple through holes. These through holes include a first through hole 141 through which the heating outlet pipe 41 passes and a second through hole 143 through which the heating return pipe 42 passes. The first through hole 141 and the second through hole 143 are located at the upper part of the back panel, so that after the heating outlet pipe 41 and the heating return pipe 42 are respectively installed into the first through hole 141 and the second through hole 143, they can be located in the upper space of the body 10, which facilitates connection with the remaining structure of the heating distribution unit 40.

[0166] Taking two heating outlet pipes 41 and two heating return pipes 42 as an example, there are two first through holes 141 and two through holes 143. One first through hole 141 and one second through hole 143 are located on one side of the back plate along its own width direction, and the other first through hole 141 and the other second through hole 143 are located on the other side of the back plate along its own width direction. The first through hole 141 and the second through hole 143 located on the same side have a spacing along the width direction and the length direction of the back plate.

[0167] Furthermore, the multiple through holes also include a third through hole 144 through which the heat pump outlet water flow path 47 passes and a fourth through hole 145 through which the heat pump return water flow path 48 passes. The third through hole 144 and the fourth through hole 145 are located in the middle of the back plate along the height direction and the width direction, and the fourth through hole 145 and the third through hole 144 have a distance between them along the width direction and the height direction of the back plate.

[0168] By setting the third through hole 144 and the fourth through hole 145 in this way, the positions of the heat pump outlet water flow path 47 and the heat pump return water flow path 48 are located in the middle of the body 10, which facilitates connection to the buffer water tank 20.

[0169] In some embodiments, from one side to the other in the width direction of the back panel, a first through hole 141, a second through hole 143, a third through hole 144, a fourth through hole 145, another first through hole 141, and another second through hole 143 are arranged in sequence, and the spacing between any two adjacent through holes is equal.

[0170] In this way, the center distance between two adjacent pipes along the width of the back plate can be equal, thus making the pipe layout more orderly.

[0171] The multiple through holes include a fifth through hole 146 through which the water storage return flow path 45 passes and a sixth through hole 147 through which the water storage outlet flow path 46 passes. The fifth through hole 146 is located in the middle of the back plate and below the third through hole 144 and the fourth through hole 145. The sixth through hole 147 is located at the bottom of the back plate.

[0172] This structure allows the return water of the water storage return flow path 45 to enter from the top of the buffer tank 20, while the water outlet of the water storage outlet flow path 46 can flow out from the bottom of the tank, so that the water flow in the buffer tank 20 forms a reasonable convection, which can improve the uniformity and stability of the water temperature in the buffer tank 20.

[0173] Furthermore, the multiple through holes include a seventh through hole 148 through which the tap water replenishment flow path 51 passes and an eighth through hole 149 through which the tap water return flow path 52 passes. The seventh through hole 148 and the eighth through hole 149 are located at the lower part of the back plate, and the sixth through hole 147 is located between the seventh through hole 148 and the eighth through hole 149.

[0174] This design takes into account that the external tap water supply pipe is generally located at a low position. Therefore, the seventh through hole 148 and the eighth through hole 149 are located at the bottom of the back plate. This not only facilitates the connection of the tap water return flow path 52 and the tap water supply flow path 51 to the rest of the constant pressure water supply unit 50, but also facilitates the connection to the external tap water supply flow path 51.

[0175] Based on the aforementioned heating terminal hydraulic device 100, this embodiment also provides a heating and ventilation system (HVAC) device, including the aforementioned heating terminal hydraulic device 100. Other structures of the HVAC device (e.g., user heating terminals) are not described in this embodiment; please refer to relevant technologies.

[0176] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A hydraulic device for heating households, characterized in that, include: The body (10) has a back plate, the back plate is provided with a through hole and a plurality of first connecting parts (142) arranged circumferentially around the through hole; The hydraulic module component, installed on the body (10), includes at least one external pipe for connecting one of the heat pump device, the tap water pipe and the user heating terminal outside the body (10). Each external pipe passes through a through hole and is provided with at least one second connection part (453). The second connection part (453) is configured to selectively connect to any one of the first connection parts (142).

2. The heating household hydraulic device according to claim 1, characterized in that, The first connecting part (142) includes a first connecting hole, and the second connecting part (453) includes a second connecting hole (4531). The first connecting hole and the second connecting hole (4531) are connected by a first connector (454) passing through them.

3. The heating household hydraulic device according to claim 2, characterized in that, The first connector (454) is detachably connected to the first connecting hole and the second connecting hole (4531) respectively.

4. The heating household hydraulic device according to claim 2, characterized in that, The external pipeline includes a first pipe (451) located inside the body (10) and a second pipe (452) located outside the body (10). The second pipe (452) is used to connect the heat pump device, the tap water pipeline or the user heating terminal. The first pipe (451) and the second pipe (452) are detachably connected. The first pipe (451) and / or the second pipe (452) are provided with the second connection hole (4531).

5. The heating household hydraulic device according to claim 4, characterized in that, The first pipe body (451) is provided with a first pipe connector (4511), and the second pipe body (452) is provided with a second pipe connector (4521) that is inserted and mated with the first pipe connector (4511). The outer wall surface of the first pipe connector (4511) is provided with a first connecting flange (4512), and the outer wall surface of the second pipe connector (4521) is provided with a second connecting flange (4522). The first connecting flange (4512) is located inside the machine body (10), and the second connecting flange (4522) is located outside the machine body (10). Both the first connecting flange (4512) and the second connecting flange (4522) are provided with a second connecting hole (4531). The first connector (454) passes through the second connecting hole (4531) of the first connecting flange (4512) and the second connecting hole (4531) of the second connecting flange (4522).

6. The heating household hydraulic device according to claim 4, characterized in that, The second tube body (452) includes a first tube portion (4523) and a second tube portion (4524) that intersect axially. When the second connecting portion (453) is connected to the first connecting portion (142), the second tube portion (4524) extends along the height or width direction of the back plate and extends out of the outside of the body (10).

7. The heating household hydraulic device according to claim 6, characterized in that, The second pipe section (4524) is provided with a switch valve (4525) for opening and closing its flow path at one end extending from the body (10), and the switch valve (4525) is provided with a drain port.

8. The heating household hydraulic device according to claim 6, characterized in that, The second tube (4524) has a threaded interface at one end extending from the body (10).

9. The heating household hydraulic device according to claim 6, characterized in that, The second tube (4524) is fixed to the back plate by a fastener (70) located on the back plate. A first insulation member (80) is sleeved on the second tube (4524). The first insulation member (80) is configured to move along the axial direction of the second tube (4524) to avoid the fastener (70).

10. The heating household hydraulic device according to claim 9, characterized in that, The first insulation component (80) includes a detachable first part (81) and a second part (82), which are arranged axially along the second tube (4524).

11. The heating household hydraulic device according to claim 10, characterized in that, The second tube (4524) extends out of the outer side of the body (10) along the width direction of the back plate. The fastener (70) is installed on one edge of the body (10) in the width direction. The fastener (70) fixes the second tube (4524) and is located between the first part (81) and the second part (82).

12. The heating household hydraulic device according to claim 11, characterized in that, The second tube (4524) extends out of the outer side of the body (10) along the height direction of the back plate. The fastener (70) is installed on the top edge of the body (10) and fixes the second tube (4524). The first part (81) and the second part (82) are located on one side of the fastener (70) and are adjacent to each other.

13. The heating household hydraulic device according to claim 10, characterized in that, The second tube (4524) is also provided with a second insulation element, which wraps the second tube (4524) and the first insulation element (80).

14. The heating household hydraulic device according to any one of claims 1-13, characterized in that, The hydraulic module components include a buffer water tank (20), an expansion compensation unit (30), a heating distribution unit (40), and a constant pressure water supply unit (50) installed inside the body (10); the expansion compensation unit (30) is connected to the buffer water tank (20) and is used to receive the increased water volume after the buffer water tank (20) expands due to heat; the heating distribution unit (40) is connected to the buffer water tank (20), the heat pump device, and the user heating terminal respectively, and is used to distribute the hot water from the buffer water tank (20) and the hot water from the heat pump device to the user heating terminal; the constant pressure water supply unit (50) is connected to the heating distribution unit (40) and the tap water pipeline, and is used to supply tap water to the heating distribution unit (40).

15. The heating household hydraulic device according to claim 14, characterized in that, The heating distribution unit (40) is at least partially located in the upper space of the body (10), the buffer water tank (20) is located in the middle space of the body (10), the expansion compensation unit (30) is located in the middle space and / or lower space of the body (10), and the constant pressure water supply unit (50) is located in the lower space of the body (10).

16. The heating household hydraulic device according to claim 15, characterized in that, The plurality of external pipes include the heating outlet pipe (41) and the heating return pipe (42) of the heating distribution unit (40). The heating outlet pipe (41) is provided with at least one heating outlet (4111) for connecting to the first interface of the user's heating terminal. The heating return pipe (42) is provided with at least one heating return outlet (4211) for connecting to the second interface of the user's heating terminal. The heating outlet pipe (41) and the heating return pipe (42) are located in the upper space of the body (10). The number of through holes is plurality of, including a first through hole (141) through which the heating outlet pipe (41) passes and a second through hole (143) through which the heating return pipe (42) passes. The first through hole (141) and the second through hole (143) are located in the upper part of the back plate.

17. The heating household hydraulic device according to claim 16, characterized in that, The number of heating outlet pipe (41), heating return pipe (42), first through hole (141), and second through hole (143) are all two. One first through hole (141) and one second through hole (143) are located on one side of the back plate along its own width direction, and the other first through hole (141) and the other second through hole (143) are located on the other side of the back plate along its own width direction. The first through hole (141) and the second through hole (143) located on the same side have a spacing along the width direction and the length direction of the back plate.

18. The heating household hydraulic device according to claim 17, characterized in that, The plurality of external pipes include a heat pump outlet water flow path (47) and a heat pump return water flow path (48) of the heating distribution unit (40). The heat pump outlet water flow path (47) is connected to the heat pump device and the heating outlet water pipe (41) respectively, and is used to receive the water inlet of the heat pump device. The heat pump return water flow path (48) is connected to the heat pump device and the buffer water tank (20) respectively, and is used to discharge water to the heat pump device. The plurality of through holes include a third through hole (144) through which the heat pump outlet water flow path (47) passes and a fourth through hole (145) through which the heat pump return water flow path (48) passes. The third through hole (144) and the fourth through hole (145) are located in the middle of the back plate along the height direction and the width direction. The fourth through hole (145) and the third through hole (144) have a distance along the width direction and the height direction of the back plate.

19. The heating household hydraulic device according to claim 18, characterized in that, From one side to the other in the width direction of the back plate, a first through hole (141), a second through hole (143), a third through hole (144), a fourth through hole (145), another first through hole (141), and another second through hole (143) are arranged in sequence, and the spacing between any two adjacent through holes is equal.

20. The heating household hydraulic device according to claim 18, characterized in that, The plurality of external pipes include the water storage return flow path (45) and the water storage outlet flow path (46) of the heating distribution unit (40). The water storage return flow path (45) is connected to the buffer water tank (20) and the external user end water tank respectively, and is used to supply water to the user end water tank. The water storage outlet flow path (46) is connected to the buffer water tank (20) and the external user end water tank respectively, and is used to receive water from the user end water tank. The plurality of through holes include a fifth through hole (146) through which the water storage return flow path (45) passes and a sixth through hole (147) through which the water storage outlet flow path (46) passes. The fifth through hole (146) is located in the middle of the back plate and below the third through hole (144) and the fourth through hole (145). The sixth through hole (147) is located in the lower part of the back plate.

21. The heating household hydraulic device according to claim 15, characterized in that, The plurality of external pipes include a tap water supply path (51) and a tap water return path (52) of the constant pressure water supply unit (50). The tap water supply path (51) is connected to the tap water source and the heating distribution unit (40) respectively, and is used to supply tap water to the heating distribution unit (40). The tap water return path (52) is connected to the tap water supply path (51) and is used to discharge the tap water from the tap water supply path (51). The plurality of through holes include a seventh through hole (148) through which the tap water supply path (51) passes and an eighth through hole (149) through which the tap water return path (52) passes. The seventh through hole (148) and the eighth through hole (149) are located at the lower part of the back plate.

22. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, Includes the heating end hydraulic device as described in any one of claims 1-21.

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