Hydraulic device and heat pump system

Abstract

The utility model belongs to the technical field of household appliances, and particularly relates to a hydraulic device and a heat pump system.The hydraulic device comprises a box body, a water pump, a water pump and a water pump, the heat exchange assembly is arranged in the accommodating space; the electric control box covers at least part of the opening, the electric control box comprises a bottom plate and a main control panel arranged on the bottom plate, the main control panel is electrically connected with the heat exchange assembly, and the bottom plate is further provided with a mounting cavity sunken towards the containing space; and the voltage transformation module is arranged in the mounting cavity, and the voltage transformation module is electrically connected with the main control board through a wire. The voltage transformation module is additionally arranged on the premise that the size of an original product is not changed, different voltage requirements of users are met, and the use experience of the users is improved.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more specifically, to a hydraulic device and heat pump system. Background Technology

[0002] In related technologies, the electrical control box of a hydraulic device used for centralized heating is electrically connected to the power supply at the user end. The wiring voltage of the electrical control box is generally 24V. When the power supply at the user end is a higher voltage, such as 220V, the electrical control box cannot be used interchangeably, affecting the user experience. Utility Model Content

[0003] The purpose of this application is to provide a hydraulic device and heat pump system that can add a transformer module without changing the original product volume, so as to meet the different voltage requirements of users and improve the user experience.

[0004] The first aspect of this application provides a hydraulic device, comprising: a housing having a receiving space and an opening communicating with the receiving space; a heat exchange component disposed in the receiving space; an electrical control box covering at least a portion of the opening, the electrical control box including a base plate and a main control board disposed on the base plate, the main control board being electrically connected to the heat exchange component, the base plate also having a mounting cavity recessed toward the receiving space; and a transformer module disposed in the mounting cavity, the transformer module being electrically connected to the main control board via wires.

[0005] According to the embodiments of this application, the hydraulic device has a recessed mounting cavity facing the heat exchange component on the bottom plate of the electrical control box, and the transformer module is placed in the mounting cavity. This can meet the different voltage requirements of users, and the structure is compact, without increasing the volume of the original hydraulic device, thus improving the user experience.

[0006] In addition, the hydraulic device according to this application may also have the following additional technical features:

[0007] In some embodiments of this application, the transformer module includes a transformer body and a support frame connected to the transformer body; the mounting cavity includes a bottom wall and a side wall, the side wall is disposed on the periphery of the bottom wall, and the transformer module is connected to the bottom wall through the support frame.

[0008] In some embodiments of this application, the support frame includes a first support plate and a second support plate located on at least one side of the first support plate. The first support plate and the second support plate are located in planes at different heights. The first support plate is provided with positioning holes, and the support frame is connected to the transformer body through the positioning holes. The second support plate is connected to the bottom wall.

[0009] In some embodiments of this application, at least a portion of the sidewalls and the bottom wall are set at an obtuse angle on one side of the mounting cavity.

[0010] In some embodiments of this application, the electrical control box includes a housing forming an installation cavity, a through hole being provided on the bottom plate, the housing being disposed on the side of the bottom plate facing the receiving space and covering the through hole.

[0011] In some embodiments of this application, the housing includes a bottom wall and a side wall, the side wall surrounding the periphery of the bottom wall, and the housing also includes a folded edge, which is formed by bending a portion of the side wall in a direction away from the mounting cavity, and the housing is connected to the base plate through the folded edge.

[0012] In some embodiments of this application, the control box can be opened and closed to cover at least a partial opening.

[0013] In some embodiments of this application, the hydraulic device further includes a hinge assembly pivotally connected between the opening of the housing and the electrical control box; or, the hydraulic device further includes a sliding assembly slidably connected between the opening of the housing and the electrical control box.

[0014] In some embodiments of this application, the hydraulic device further includes a buffer assembly that covers the outer periphery of the heat exchange assembly. One side of the buffer assembly can abut against the base plate and does not overlap with the mounting cavity.

[0015] A second aspect of this application provides a heat pump system including a hydraulic device as described in the embodiments of this application.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0017] 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 scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0018] 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 scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0019] Figure 1 This is a three-dimensional structural diagram of a hydraulic device according to an embodiment of this application;

[0020] Figure 2 for Figure 1A top view of the hydraulic device shown.

[0021] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of the hydraulic device shown along direction AA;

[0022] Figure 4 for Figure 3 A magnified structural diagram of region B in the middle;

[0023] Figure 5 for Figure 4 A schematic diagram showing the disassembled view of the intermediate transformer module and its support frame;

[0024] Figure 6 for Figure 1 The diagram shows the exploded structure of the hydraulic device.

[0025] The labels in the attached diagram are as follows:

[0026] 100. Hydraulic devices;

[0027] 1. Box body; 11. Opening;

[0028] 21. Electric heater; 22. Heat exchanger; 23. Expansion tank; 24. Water pump;

[0029] 3. Electrical control box; 31. Base plate; 311. Through hole; 32. Main control board; 33. Mounting cavity; 330. Housing; 331. Bottom wall; 332. Side wall; 333. Folded edge; 34. Side plate;

[0030] 4. Transformer module; 41. Transformer body; 411. Through hole; 42. Support frame; 420. Positioning hole; 421. First support plate; 422. Second support plate;

[0031] 5. Hinge assembly; 6. Buffer assembly; 61. First buffer; 62. Second buffer; 63. Third buffer; 64. Fourth buffer; 65. Fifth buffer; 651. Clearance groove. Detailed Implementation

[0032] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0033] 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.

[0034] Although the terms second, first, 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 "second," "first," and other numerical terms used herein do not imply order or sequence. Therefore, the second element, component, region, layer, or segment discussed below may be referred to as the first element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0035] 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.

[0036] This application provides a heat pump system including a hydraulic device. The heat pump system may include, but is not limited to, heat pump water heaters, heat pump air conditioners, heat pump underfloor heating, and heat pump multi-generation systems (e.g., combined air conditioning and underfloor heating, or combined air conditioning, underfloor heating, and hot water). The heat pump system is equipped with a water circulation pipeline. The main function of the hydraulic device is to exchange heat with the water from the water circulation pipeline to obtain hot or cooling water. The water after heat exchange is then transported through the water circulation pipeline to a water storage device such as a water tank in the heat pump system, or to terminals such as fan coil units, underfloor heating pipes, and radiators.

[0037] Figure 1 This is a three-dimensional structural diagram of a hydraulic device according to an embodiment of this application. Figure 2 for Figure 1 The diagram shown is a top view of the hydraulic device. Figure 3 for Figure 2 The diagram shows a cross-sectional view of the hydraulic device along direction AA.

[0038] See Figures 1 to 3 This application provides a hydraulic device 100, including a housing 1, a heat exchange component, an electrical control box 3, and a transformer module 4.

[0039] The housing 1 has a receiving space and an opening 11 communicating with the receiving space. The housing 1 can be any of the following: a hollow cylinder, a cuboid, or a polygon. In this embodiment, the housing 1 is a cuboid, and the housing 1 also includes a cover plate (not shown in the figure), which can be placed on the opening 11 to facilitate the removal of the cover plate for maintenance of the internal components of the housing 1.

[0040] The heat exchange assembly is housed within the containment space. The heat exchange assembly may include an electric heater 21, a heat exchanger 22, an expansion tank 23, a water pump 24, heat exchange piping, and refrigerant piping (see details). Figure 6 For heating, if the temperature of the hot water flowing out of heat exchanger 22 does not reach the required temperature, it needs to be heated in electric heater 21; if the temperature of the hot water flowing out of heat exchanger 22 reaches the required temperature, it does not need to be heated when passing through electric heater 21. For cooling, the cold water flowing out of heat exchanger 22 does not need to be heated when passing through electric heater 21.

[0041] The electrical control box 3 covers at least a partial opening 11. The electrical control box 3 includes a base plate 31 and a main control board 32 disposed on the base plate 31. The main control board 32 is electrically connected to the heat exchange assembly. The base plate 31 also has a mounting cavity 33 recessed towards the receiving space. The electrical control box 3 also includes a side plate 34, one side of which is connected to the base plate 31, and the other side of which is connected to the opening 11 of the housing 1. Generally, the main control board 32 is electrically connected to the electric heater 21 of the heat exchange assembly, and turns the electric heater 21 on or off according to the water temperature inside the heat exchanger 22. In this embodiment, the main control board 32 is disposed on the side of the base plate 31 away from the heat exchange assembly. In other examples, the main control board 32 can also be disposed on the side of the base plate 31 facing the heat exchange assembly, as long as the main control board 32 does not structurally interfere with the mounting cavity 33 or the heat exchange assembly.

[0042] The transformer module 4 is housed within the mounting cavity 33 and is electrically connected to the main control board 32 via wires. The transformer module 4 adjusts the voltage of the control box 3 according to voltage changes on the user side, thus broadening the application range of the hydraulic device 100, meeting different voltage requirements of users, and improving the user experience. Because the mounting cavity 33 is recessed from the base plate 31 towards the receiving space, the transformer module 4 can be flush with or slightly higher than the base plate 31 without interfering with the cover plate. Furthermore, the mounting cavity 33 does not structurally interfere with the heat exchange components. This arrangement does not alter the original height and volume of the hydraulic device, resulting in a compact structure.

[0043] According to the embodiments of this application, the hydraulic device 100 has a recessed mounting cavity 33 on the bottom plate 31 of the electrical control box 3 facing the heat exchange component, and the transformer module 4 is placed in the mounting cavity 33. This can meet the different voltage requirements of users, and the structure is compact, without increasing the volume of the original hydraulic device 100, thus improving the user experience.

[0044] Figure 4 for Figure 3 A magnified structural diagram of region B in the middle.

[0045] In some embodiments, the transformer module 4 includes a transformer body 41 and a support frame 42 connected to the transformer body 41; the mounting cavity 33 includes a bottom wall 331 and a side wall 332, the side wall 332 is disposed on the periphery of the bottom wall 331, and the transformer module 4 is connected to the bottom wall 331 through the support frame 42.

[0046] like Figure 4As shown, the support frame 42 is a sheet metal part, formed by stamping and bending, which facilitates mass production. The mounting cavity 33 can be cylindrical or rectangular. When the mounting cavity 33 is rectangular, the bottom wall 331 is spaced apart from the bottom plate 31, and the four side walls 332 are connected between the periphery of the bottom wall 331 and the bottom plate 31. The transformer module 4 is connected to the bottom wall 331 through the support frame 42.

[0047] Figure 5 for Figure 4 A schematic diagram showing the disassembled view of the intermediate transformer module and its support frame.

[0048] In some embodiments, the support frame 42 includes a first support plate 421 and a second support plate 422 located on at least one side of the first support plate 421. The first support plate 421 and the second support plate 422 are located in planes at different heights. The first support plate 421 is provided with a positioning hole 420. The support frame 42 is connected to the transformer body 41 through the positioning hole 420. The second support plate 422 is connected to the bottom wall 331.

[0049] like Figure 5 As shown, exemplarily, the support frame 42 includes a first support plate 421 and a second support plate 422 located on both sides of the first support plate 421. The first support plate 421 and the second support plate 422 are located in planes at different heights, making the support frame 42 arranged in a "U" shape. The first support plate 421 is provided with two spaced-apart positioning holes 420, which are threaded holes. The transformer body 41 is provided with two spaced-apart through holes 411. Screws pass through the through holes 411 and the positioning holes 420 and are threadedly connected to the positioning holes 420. The second support plate 422 can be welded to the bottom wall 331, without occupying any space other than the mounting cavity 33, reducing the possibility of interference between the electrical control box 3 and components such as the heat exchange assembly.

[0050] It is understood that the support frame 42 includes a first support plate 421 and a second support plate 422 located on one side of the first support plate 421. Since the transformer body 41 is lightweight, the transformer body 41 is fixedly connected to the first support plate 421 by screws, and then welded to the bottom wall 331 by a second support plate 422. This reduces the space occupied by the mounting cavity 33 and further reduces the possibility of interference between the electrical control box 3 and components such as the heat exchange assembly.

[0051] In some embodiments, at least a portion of the sidewall 332 and the bottom wall 331 are disposed at an obtuse angle on one side of the mounting cavity 33.

[0052] like Figure 3 and Figure 4As shown, the mounting cavity 33 is a rectangular cylinder with four side walls 332. One of the side walls 332 is inclined relative to the bottom wall 331, meaning that on one side of the mounting cavity 33, the angle between one side wall 332 and the bottom wall 331 is an obtuse angle. This arrangement prevents structural interference between the mounting cavity 33 and components such as heat exchangers. If the mounting cavity 33 is cylindrical, the angle between a portion of the side wall 332 and the bottom wall 331 is also an obtuse angle. The size of the obtuse angle depends on nearby components, as long as the components can be avoided.

[0053] In some embodiments, the electrical control box 3 includes a housing 330 forming a mounting cavity 33, a through hole 311 is provided on the bottom plate 31, the housing 330 is disposed on the side of the bottom plate 31 facing the receiving space and covers the through hole 311.

[0054] The mounting cavity 33 can be directly stamped from the base plate 31, or it can be a shell 330 connected to the base plate 31. The shell 330 can be a cylindrical or rectangular tube with the mounting cavity 33. Figure 3 As shown, a through hole 311 is provided on the base plate 31, and the housing 330 covers the through hole 311. The housing 330 can be connected to the base plate 31 by fasteners such as screws, or by welding. Since the housing 330 and the base plate 31 are designed separately, the transformer module 4 can be installed in the housing 330 first, and then the housing 330 and the base plate 31 can be connected as a whole, improving assembly efficiency.

[0055] In some embodiments, the housing 330 includes a bottom wall 331 and a side wall 332, the side wall 332 surrounding the periphery of the bottom wall 331, and the housing 330 also includes a folded edge 333, which is formed by bending a portion of the side wall 332 in a direction away from the mounting cavity 33, and the housing 330 is connected to the base plate 31 through the folded edge 333.

[0056] like Figure 3 As shown, the housing 330 is a rectangular tube with a mounting cavity 33. The two opposite side walls 332 are respectively provided with bent edges 333. The edges 333 can be welded to the base plate 31, or they can be connected to the base plate 31 by fasteners passing through the edges 333.

[0057] In some embodiments, the control box 3 is closable and can be opened and closed to at least a portion of the opening 11. As previously described, the hydraulic device 100 also includes a cover plate that closes to the opening 11, covering a portion of the heat exchange assembly when the control box 3 is closed to the partial opening 11. When the hydraulic device 100 requires maintenance, the cover plate is opened first, and then the control box 3 is opened to facilitate maintenance or replacement of damaged parts in the heat exchange assembly through the opening 11.

[0058] In some embodiments, the hydraulic device 100 further includes a hinge assembly 5, which is pivotally connected between the opening 11 of the housing 1 and the electrical control box 3; or, the hydraulic device 100 further includes a sliding assembly, which is slidably connected between the opening 11 of the housing 1 and the electrical control box 3.

[0059] like Figure 1 As shown, in one example, the hydraulic device 100 further includes a hinge assembly 5, which includes a pivot and a first connector and a second connector respectively passing through the pivot. The first connector is connected to the wall at the opening 11 of the housing 1, and the second connector is connected to the side plate 34 of the electrical control box 3. The opening 11 can be opened or closed by rotating the electrical control box 3. In another example, the hydraulic device 100 further includes a sliding assembly, which includes a slidingly connected guide rail and a slider. The guide rail is located at the opening 11 of the housing 1, and the bottom plate 31 of the electrical control box 3 is connected to the slider. The opening 11 can be opened or closed by moving the electrical control box 3. Thus, by moving or rotating, the electrical control box 3 can be opened, facilitating the repair or replacement of damaged parts in the heat exchange assembly through the opening 11.

[0060] Figure 6 for Figure 1 The diagram shows the exploded structure of the hydraulic device.

[0061] In some embodiments, the hydraulic device 100 further includes a buffer assembly 6, which covers the outer periphery of the heat exchange assembly. One side of the buffer assembly 6 can abut against the base plate 31 and does not overlap with the mounting cavity 33.

[0062] like Figure 6 As shown, the housing 1 includes a first side wall, a second side wall, a third side wall, and a fourth side wall connected end to end. The electric heater 21 and the water pump 24 are positioned near the first side wall, the expansion tank 23 and the heat exchanger 22 are positioned near the third side wall, and the electric heater 21 and the expansion tank 23 are positioned near the second side wall. The heat exchanger 22 and the water pump 24 are positioned opposite each other near the fourth side wall. This arrangement allows for a clear, neat, and aesthetically pleasing layout of the components in the heat exchange assembly, improving the design quality and grade of the product.

[0063] The heat exchange assembly also includes an inlet pipe, a connecting pipe, and an outlet pipe. Water from the water circulation pipeline first flows into the inlet pipe, then into the heat exchanger 22 through the first inlet. After heat exchange in the heat exchanger 22, it flows out through the first outlet and into the electric heater 21 through the connecting pipe and the second inlet. Then it flows out through the first outlet and into the outlet pipe, and finally flows back into the water circulation pipeline through the outlet pipe. Since the hydraulic device 100 is generally placed vertically in the installation state, the inlet interface of the inlet pipe and the outlet interface of the outlet pipe can be set on the fourth side wall near the ground. When it is necessary to drain the hydraulic device 100, the water in the inlet pipe and the outlet pipe can flow naturally downward along the inlet pipe or the outlet pipe under the action of gravity, and natural drainage can be achieved without the need for manual drainage through a separate drain pipe.

[0064] For example, heat exchanger 22 can be a plate heat exchanger. Plate heat exchangers are compact, have high heat exchange efficiency, and save space, making the overall structure of the hydraulic device 100 more compact. In other examples, heat exchanger 22 can also be other types of heat exchangers. Water pump 24 can be installed on the outlet pipe, and expansion tank 23 is connected to the inlet pipe through an expansion joint to buffer pressure fluctuations in the water circulation pipeline. When the pressure in the water circulation pipeline is too high, water will enter the expansion tank 23 through the expansion joint to reduce the pressure in the water circulation pipeline and protect the various components of the water circulation pipeline from damage due to excessive pressure.

[0065] The heat exchanger 22 also has a first refrigerant inlet and a second refrigerant inlet. The heat exchange pipeline includes a first refrigerant pipe connected to the first refrigerant inlet and a second refrigerant pipe connected to the second refrigerant inlet. During the heating process, the refrigerant from the refrigerant pipeline of the hydraulic device 100 first flows into the first refrigerant pipe, then flows into the heat exchanger 22 through the first refrigerant inlet to exchange heat with the water in the heat exchanger 22. After heat exchange, the refrigerant flows out from the second refrigerant inlet and into the second refrigerant pipe, and finally flows back into the refrigerant pipeline through the second refrigerant pipe. During the cooling process, the refrigerant from the refrigerant pipeline first flows into the second refrigerant pipe, then flows into the heat exchanger 22 through the second refrigerant inlet to exchange heat with the water in the heat exchanger 22. After heat exchange, the refrigerant flows out from the first refrigerant inlet and into the first refrigerant pipe, and finally flows back into the refrigerant pipeline through the first refrigerant pipe.

[0066] Optionally, the buffer component 6 is made of materials such as foam or thermoplastic polyurethane elastomer rubber (TPU). The buffer component 6 covers the outer periphery of the heat exchange component, which can buffer the vibration and impact on the heat exchange component during transportation, and prevent the heat exchange component from tilting, loosening, cracking and other problems. On the other hand, it can also provide a good heat preservation effect for the heat exchange component.

[0067] Exemplarily, the buffer assembly 6 includes a first buffer 61, a second buffer 62, a third buffer 63, a fourth buffer 64, and a fifth buffer 65. The first buffer 61 is fitted against the bottom surface of the housing 1. The second buffer 62, the third buffer 63, the fourth buffer 64, and the fifth buffer 65 are respectively disposed on the side of the first buffer 61 facing away from the bottom surface, so as to form a first accommodating cavity covering the outer periphery of the electric heater 21, a second accommodating cavity covering the outer periphery of the heat exchanger 22, a third accommodating cavity covering the outer periphery of the expansion tank 23, and a fourth accommodating cavity covering the outer periphery of the refrigerant pipeline, respectively. The fifth buffer 65 is provided with a relief groove 651, and at least a portion of the water pump 24 extends out from the relief groove 651. The first buffer 61 has the same projected area on the bottom surface as the bottom surface area, thus restricting the movement of the first buffer 61 along the plane of the bottom surface within the housing 1. A first groove adapted to a portion of the outer surface of the electric heater 21 is formed on the side of the first buffer 61 facing away from the bottom surface. A second groove adapted to another portion of the outer surface of the electric heater 21 is formed on the side of the second buffer 62 facing the first buffer 61. A first accommodating cavity covering the outer periphery of the electric heater 21 is formed between the first groove and the second groove. The third buffer 63, the fourth buffer 64, and the fifth buffer 65 are arranged in this manner, thereby limiting each component of the heat exchange assembly to the accommodating space of the housing 1, buffering the vibration and impact between the heat exchange assembly and the housing 1 during transportation, and on the other hand, providing a good heat preservation effect for the heat exchange assembly.

[0068] Furthermore, the second buffer 62, the third buffer 63, the fourth buffer 64, and the fifth buffer 65 abut against the bottom plate 31 on the side opposite to the first buffer 61, and do not overlap with the mounting cavity 33. For example, at least a portion of the sidewall 332 is set at an obtuse angle to the bottom wall 331 on one side of the mounting cavity 33 to avoid the partial structure of the buffer assembly 6. Exemplarily, the fourth buffer 64 is disposed on the side of the first buffer 61 opposite to the bottom surface to form a third accommodating cavity covering the periphery of the expansion tank 23. Among the four sidewalls 332 of the mounting cavity 33, at least one sidewall 332 is set at an obtuse angle to the bottom wall 331 on one side of the mounting cavity 33 to avoid the fourth buffer 64. In other instances, at least a portion of the sidewalls 332 of the mounting cavity 33 may also avoid other buffers, specifically determined by the position of the transformer module 4 on the main control board 32 of the electrical control box 3, which will not be elaborated further.

[0069] In addition, the hydraulic device 100 also includes multiple fixed brackets (not shown in the figure), one end of each fixed bracket is connected to the bottom surface, and the other end of each fixed bracket is provided with a buffer assembly 6 and is fixedly connected to the electric heater 21, the heat exchanger 22 and the expansion tank 23 respectively.

[0070] In addition, the assembly method of the hydraulic device 100 provided in this application embodiment includes the following steps S1 to S4.

[0071] Step S1: Provide housing 1, heat exchange assembly, electrical control box 3, transformer module 4, and buffer assembly 6. The electrical control box 3 includes a base plate 31 and a main control board 32 mounted on the base plate 31. The base plate 31 also has a recessed mounting cavity 33 facing the heat exchange assembly. If the mounting cavity 33 of the electrical control box 3 is formed through the housing 330, the housing 330 is pre-connected to the through hole 311 of the base plate 31 to form the mounting cavity 33.

[0072] Step S2: Install the transformer module 4 into the mounting cavity 33 of the electrical control box 3, and connect the transformer module 4 to the main control board 32 via wires; if the housing 330 and the base plate 31 are designed separately, first install the transformer module 4 into the housing 330, then connect the housing 330 to the base plate 31 of the electrical control box 3, and finally connect the transformer module 4 to the main control board 32 via wires.

[0073] Step S3: Place a portion of the buffer assembly 6 into the receiving space of the housing 1, place the heat exchange assembly inside the buffer assembly 6, and connect all heat exchange pipes and refrigerant pipes. Place the other portion of the buffer assembly 6 to cover the outer periphery of the heat exchange assembly. A portion of the buffer assembly 6 can be the first buffer element 61. Place the heat exchange assembly in the corresponding groove of the first buffer element 61, and connect all heat exchange pipes and refrigerant pipes. Then assemble the second buffer element 62, the third buffer element 63, the fourth buffer element 64, and the fifth buffer element 65 respectively.

[0074] Step S4: Place the electrical control box 3 assembly into the housing space of the box 1, and electrically connect the main control board 32 to the heat exchange assembly.

[0075] In the description of this application, references to terms such as "in some embodiments" or "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine the different embodiments or examples described in this application, as well as the features of the different embodiments or examples.

[0076] The above description is merely a preferred embodiment of this application, but the scope of protection of this application 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 this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hydraulic device, characterized by, The hydraulic device comprises: a box body having a containing space and an opening communicating with the containing space; a heat exchange assembly arranged in the containing space; an electric control box covering at least part of the opening, the electric control box comprising a bottom plate and a main control board arranged on the bottom plate, the main control board being electrically connected with the heat exchange assembly, the bottom plate further comprising a mounting cavity recessed towards the containing space; a transformer module arranged in the mounting cavity, the transformer module being electrically connected with the main control board through wires. The transformer module comprises a transformer body and a support frame connected with the transformer body.

2. The hydraulic device of claim 1, wherein The mounting cavity comprises a bottom wall and a side wall, the side wall being arranged around the periphery of the bottom wall, and the transformer module being connected with the bottom wall through the support frame. The support frame comprises a first support plate and a second support plate arranged on at least one side of the first support plate, the first support plate and the second support plate being arranged on different planes, the first support plate being provided with a positioning hole, the support frame being connected with the transformer body through the positioning hole, and the second support plate being connected with the bottom wall.

3. The hydraulic device of claim 2, wherein At least part of the side wall and the bottom wall are arranged at an obtuse angle on one side of the mounting cavity.

4. The hydraulic device of claim 2, wherein The electric control box comprises a shell forming the mounting cavity, the bottom plate being provided with a through hole, and the shell being arranged on the side of the bottom plate facing the containing space and covering the through hole.

5. A hydraulic device according to any one of claims 1 to 4, characterised in that, The shell comprises a bottom wall and a side wall, the side wall being arranged around the periphery of the bottom wall, the shell further comprising a folded edge, the folded edge being formed by bending part of the side wall away from the mounting cavity, and the shell being connected with the bottom plate through the folded edge.

6. The hydraulic device of claim 5, wherein The electric control box is coverable on and off at least part of the opening.

7. A hydraulic device according to any one of claims 1 to 4, characterised in that The hydraulic device further comprises a hinge assembly, the hinge assembly being pivotally connected between the opening of the box body and the electric control box.

8. The hydraulic device of claim 7, wherein Alternatively, the hydraulic device further comprises a sliding assembly, the sliding assembly being slidingly connected between the opening of the box body and the electric control box. The hydraulic device further comprises a buffer assembly, the buffer assembly being wrapped around the outer periphery of the heat exchange assembly, one side of the buffer assembly being capable of abutting to the bottom plate and not overlapping with the mounting cavity.

9. A hydraulic device according to any one of claims 1 to 4, characterised in that The hydraulic device comprises the hydraulic device according to any one of claims 1 to 9.

10. A heat pump system, characterized by, ​

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