Heat pump unit indoor unit

Abstract

The application provides an indoor unit of a heat pump unit, comprising: a shell and an electrical box; the electrical box is installed in the shell, and the electrical box comprises an electrical box body; the electrical box body comprises a box back plate, opposite sides of the box back plate are open to form a box opening, the box opening is arranged to face an opening part of the shell, and an electrical accommodation cavity is defined in the electrical box body; the electrical accommodation cavity comprises: a main accommodation area and a layered accommodation area; the main accommodation area is arranged to face the box opening and is used for installing a main control board; the layered accommodation area is arranged to face the box opening and is located on one side of the main accommodation area; a layered plate is installed in the layered accommodation area; the layered plate separates the layered accommodation area into a first sub-space and a second sub-space; the first sub-space is located between the box opening and the layered plate; and the second sub-space is located between the layered plate and the box back plate. The internal space of the electrical box is designed in a partitioned and layered manner, reasonable layout of internal electrical elements is achieved, space utilization is improved, and the structure of the electrical box is more compact.

Description

Technical Field

[0001] This application relates to the field of heat pump equipment technology, and in particular to an indoor unit of a heat pump unit. Background Technology

[0002] A heat pump unit is a device that absorbs heat from a low-temperature heat source and transfers it to a high-temperature heat source to achieve cooling, heating, or hot water supply. It is commonly used in heating, cooling, and domestic hot water applications. Compared to traditional electric or gas heating methods, heat pump units offer advantages such as high energy efficiency and environmental friendliness, making them widely used in residential buildings, commercial buildings, and industrial facilities.

[0003] A heat pump unit typically consists of an indoor unit and an outdoor unit. The indoor unit usually houses components such as a heat exchanger, electrical box, expansion tank, water pipes, and refrigerant pipes. The electrical box houses and protects electrical components such as controllers, relays, and contactors, enabling the unit's control and operation management.

[0004] However, the current layout of electrical components inside the electrical box is unreasonable, which can easily lead to inconvenience in external wiring or subsequent maintenance. In some cases, it is necessary to disassemble and reassemble multiple unrelated electrical components before wiring or repairing the target component, making the maintenance process complex, inefficient, and even increasing maintenance costs. Utility Model Content

[0005] To address at least one shortcoming in the related technologies, this application provides a heat pump unit indoor unit that adopts a partitioned and layered design for the internal space of the electrical box, thereby achieving a reasonable layout of the internal electrical components, improving space utilization, and making the structure of the electrical box more compact.

[0006] This application provides an indoor unit of a heat pump unit, including: a casing and an electrical box; a receiving cavity is defined in the casing, and an opening is formed on one side of the casing; the electrical box is installed in the receiving cavity, the electrical box includes an electrical box body, the electrical box body includes a box back plate, the opposite side of the box back plate is open to form a box opening, the box opening is disposed facing the opening, and an electrical receiving cavity is defined in the electrical box body. The electrical appliance housing includes a main housing area and a layered housing area. The main housing area faces the opening of the housing and is used to install the main control board. The layered housing area faces the opening of the housing and is located on one side of the main housing area. A layered plate is installed in the layered housing area, which divides the layered housing area into a first subspace and a second subspace. The first subspace is located between the opening of the housing and the layered plate and is used to accommodate electrical components that require external wiring or operation. The second subspace is located between the layered plate and the back panel of the housing and is used to accommodate electrical components that do not require external wiring or operation.

[0007] In the above technical solution, the electrical enclosure adopts a partitioned and layered design, dividing it into a main enclosure area and layered enclosure areas. The main control board is installed in the main enclosure area, directly facing the enclosure opening, facilitating adjustments, viewing segment displays, and other operations. Electrical components requiring external wiring or operation are placed in the upper first sub-space of the layered enclosure area, directly facing the enclosure opening for easy access. Electrical components not requiring external operation are placed in the lower second sub-space of the layered enclosure area, reducing potential impacts during external operations and providing better protection. This approach achieves a rational partitioned layout, improves space utilization in the thickness direction of the electrical enclosure, and meets product usage requirements and functional expansion needs.

[0008] In some embodiments, the electrical box body further includes a box side panel connected to a box back panel, defining a box opening on the side of the box side panel away from the box back panel; the box side panel includes a first side panel and a second side panel disposed opposite to each other, one end of a layered plate is connected to the first side panel, a support plate is installed in the second subspace, the support plate is disposed close to the second side panel, one end of the support plate is connected to the box back panel, and the other end of the support plate is connected to the layered plate to support the layered plate.

[0009] In the above technical solution, one end of the support plate is connected to the back plate of the box and the other end is connected to the layer plate, so that the support plate forms a support component that runs through the second subspace, providing reliable support for the layer plate and realizing the fixed installation of the layer plate. This not only improves the stability of the layer plate, but also enhances the overall structural strength and rigidity of the electrical box.

[0010] In some embodiments, an mounting plate is installed on the inner surface of the back panel of the housing. The mounting plate is used to fix the main control board and electrical components installed in the second subspace. The edge of the mounting plate is connected to the back panel of the housing, and the middle area of ​​the mounting plate is spaced apart from the back panel of the housing. A snap-fit ​​portion is provided through the mounting plate. A plug-in portion is provided on the side of the support plate near the mounting plate. The plug-in portion passes through the snap-fit ​​portion and is disposed opposite to the mounting plate to limit the support plate to the mounting plate.

[0011] In the above technical solution, the main control board and the bottom electrical components can be fixed as a whole by the mounting plate, which facilitates unified disassembly and assembly, improves assembly efficiency, and ensures the positioning accuracy and stability of the components; the mounting plate is spaced apart from the back plate of the box, which helps to dissipate heat, avoids heat accumulation, and improves the heat dissipation performance of the electrical box; the cooperation between the plug-in part and the snap-fit ​​part realizes the limiting installation of the support plate, prevents the support plate from shifting during assembly or operation, and improves the stability of the overall structure.

[0012] In some embodiments, the end of the support plate near the layered plate is bent to form a support portion, which is abutted against and fixedly connected to the layered plate; the end of the support plate near the mounting plate is provided with a connecting plate, which is disposed opposite to and fixedly connected to the mounting plate.

[0013] In the above technical solution, the two ends of the support plate are fixedly connected to the layered plate and the mounting plate through the support part and the connecting plate, respectively, so that the support plate forms a stable support structure, thereby effectively improving the installation stability of the layered plate, preventing the layered plate from shifting, and making the overall structure more solid and reliable.

[0014] In some embodiments, a relay is installed in the second subspace and connected to a support plate to fix the relay in the second subspace; at least a portion of the connecting plate protrudes in the direction of the box opening to form a raised portion, and a gap is formed between the raised portion and the mounting plate; the surface of the relay facing the mounting plate is abutted against the raised portion so that the relay and the mounting plate are spaced apart.

[0015] In the above technical solution, the support plate has the functions of supporting and fixing the layered plate and installing the relay, which makes the component integration higher, reduces the need for additional mounting brackets, simplifies the assembly structure, and makes the internal layout of the second subspace more compact and reasonable. Through the design of the raised part, an interval space is formed between the relay and the mounting plate, which is conducive to heat dissipation during relay operation and improves the reliability and service life of the relay.

[0016] In some embodiments, the box side panel further includes a third side panel, which is located between the first side panel and the second side panel and is adjacent to the layered receiving area. A wire guide is provided through the third side panel and communicates with the first subspace.

[0017] In the above technical solution, a cable passage is provided on the third side plate adjacent to the layered accommodating area, and the cable passage is connected to the first subspace, so that the cable can be directly led out from the first subspace and passed through the third side plate to connect with external power supply and other equipment. This makes the wiring path more direct, reduces cable bending, and improves wiring efficiency.

[0018] In some embodiments, the electrical box is installed in the upper region of the receiving cavity, the box opening is located in the vertical plane, the second side plate forms the top surface of the electrical box, the edge of the second side plate on the side of the box opening is bent upward to form a water-retaining flange, and the second side plate is inclined from the box opening toward the box back plate with a decreasing height; the electrical box also includes a box cover, the box cover is provided on the box opening and closes the electrical receiving cavity, the upper part of the box cover abuts against the water-retaining flange, and the top edge of the box cover is bent toward the rear side of the water-retaining flange to form a limiting flange.

[0019] In the above technical solution, the inclined setting of the second side plate at the top of the electrical box, together with the water-blocking flange at the edge of the box opening, can guide the water at the top of the electrical box to slide down to the rear of the electrical box, preventing the water falling to the top from entering the electrical box cavity along the edge of the second side plate; the limiting flange on the box cover and the water-blocking flange work together to not only limit the top of the box cover, but also improve the sealing and waterproof performance of the electrical box.

[0020] In some embodiments, the housing also includes a back panel located on the opposite side of the opening; the indoor unit of the heat pump unit also includes an electrical box bracket, which extends in the thickness direction of the housing, with one end of the electrical box bracket connected to the back panel of the housing and the other end of the electrical box bracket connected to the back panel, forming a reserved space between the back panel of the housing, the back panel and the electrical box bracket.

[0021] In the above technical solution, by setting an electrical box bracket, the electrical box is separated from the back panel, which makes the electrical box closer to the opening part of the casing, making it easier to connect or maintain the electrical box. At the same time, a reserved space is formed between the back panel, the back panel and the electrical box bracket, which can be used to install other components, so that the space in the thickness direction of the casing is fully utilized and the utilization rate of the internal space of the unit is improved.

[0022] In some embodiments, the appliance box bracket includes two bracket plates connected to each other and arranged at an angle. The two bracket plates extend along the thickness direction of the casing. Each bracket plate is bent at the edge near the back plate of the box to form a first support portion. The first support portion is abutted against and fixedly connected to the back plate of the box. Each bracket plate is provided with a second support portion at the edge near the back plate. The second support portion is abutted against and fixedly connected to the back plate.

[0023] In the above technical solution, the two ends of the electrical box bracket form surface contact with the back plate of the box and the back plate at the assembly position through the first support part and the second support part respectively, thereby improving the reliability of the assembly and the stability of the electrical box support.

[0024] This application also provides an indoor unit of a heat pump unit, including a casing and an electrical box; a receiving cavity is defined inside the casing, and an opening is formed on one side of the casing; the electrical box is installed in the receiving cavity, the electrical box includes an electrical box body, the side of the electrical box body facing the opening is open to form a box opening, an electrical receiving cavity is defined inside the electrical box body, and a layered plate is installed inside the electrical receiving cavity, the layered plate is disposed facing the box opening and close to the side of the electrical box body; The electrical appliance housing includes a main housing area and a layered housing area; the main housing area does not have a layered board and is used to install the main control board; the layered housing area has a layered board and is divided into a first subspace near the box opening and a second subspace away from the box opening. The first subspace is used to accommodate electrical components that require external wiring or operation, and the second subspace is used to accommodate electrical components that do not require external wiring or operation.

[0025] In the above technical solution, the electrical enclosure adopts a partitioned and layered design, dividing it into a main enclosure area and layered enclosure areas. The main control board is installed in the main enclosure area, directly facing the enclosure opening, facilitating adjustments, viewing segment displays, and other operations. Electrical components requiring external wiring or operation are placed in the upper first sub-space of the layered enclosure area, directly facing the enclosure opening for easy access. Electrical components not requiring external operation are placed in the lower second sub-space of the layered enclosure area, reducing potential impacts during external operations and providing better protection. This approach achieves a rational partitioned layout, improves space utilization in the thickness direction of the electrical enclosure, and meets product usage requirements and functional expansion needs. Attached Figure Description

[0026] Figure 1 A perspective view of the indoor unit of a heat pump unit provided in an embodiment of this application; Figure 2 This is a schematic diagram showing the opening of the cover of the indoor unit of the heat pump unit provided in an embodiment of this application; Figure 3 A perspective view of the indoor unit of a heat pump unit after the cover plate has been removed, as provided in an embodiment of this application. Figure 4 This is a front view of the indoor unit of the heat pump unit after the cover plate has been removed, as provided in the embodiment of this application. Figure 5 This application provides a three-dimensional representation of the backplate, electrical box bracket, and electrical box assembly state in the embodiments of this application. Figure 1 ; Figure 6 for Figure 5 Exploded view of the structure shown; Figure 7 This application provides a three-dimensional representation of the backplate, electrical box bracket, and electrical box assembly state in the embodiments of this application. Figure 2 ; Figure 8 for Figure 7 Exploded view of the structure shown; Figure 9 This is a side view of the electrical box in an embodiment of this application; Figure 10 This is a front view of the electrical box in an embodiment of this application; Figure 11 for Figure 10 A sectional view along section line AA; Figure 12 for Figure 11 A magnified view of part B in the middle; Figure 13 for Figure 11 A magnified view of part C in the middle; Figure 14 This is a schematic diagram of the electrical box body and its internal electrical components in an embodiment of this application; Figure 15 The three-dimensional representation of the electrical box body in the embodiments of this application. Figure 1 ; Figure 16 The three-dimensional representation of the electrical box body in the embodiments of this application. Figure 2 ; Figure 17 This is a front view of the electrical box body in an embodiment of this application; Figure 18 for Figure 17 A sectional view along the DD section line; Figure 19 This is a schematic diagram of the assembly state of the mounting plate, support plate, and layered plate in the embodiments of this application. Figure 1 ; Figure 20 for Figure 19 Exploded view of the structure shown; Figure 21 This is a schematic diagram of the assembly state of the mounting plate, support plate, and layered plate in the embodiments of this application. Figure 2 ; Figure 22 for Figure 21 Exploded view of the structure shown; Figure 23 This is an exploded view of the back panel and the electrical box bracket in an embodiment of this application.

[0027] In the picture: 100. Housing; 110. Back panel; 120. Top panel; 130. Side panel; 140. Bottom panel; 101. Receiving cavity; 102. Opening part; 103. Reserved space; 200. Cover plate; 300. Electrical box; 310. Electrical box body; 311. Box back panel; 312. First side panel; 313. Second side panel; 3131. Water-retaining flange; 314. Third side panel; 3141. Cable routing part; 320. Box opening; 330. Electrical receiving cavity; 331. Main receiving area; 332. Layered receiving area; 3321. First subspace; 3322. Second subspace; 340. Layered Plate; 350, Support plate; 351, Support part; 352, Insertion part; 360, Assembly plate; 361, First assembly sub-plate; 362, Second assembly sub-plate; 370, Mounting plate; 371, Snap-fit ​​part; 380, Connecting plate; 381, Lifting part; 390, Box cover; 391, Limiting flange; 410, Main control board; 420, Terminal block; 430, Relay; 440, Fuse; 500, Electrical box bracket; 510, Bracket plate; 511, First support part; 512, Second support part; 513, Hollowed-out part; 610, Positioning protrusion; 620, Positioning hole; 700, Sealing element. Detailed Implementation

[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] In the description of this application, "width direction" refers to the left-right direction when the indoor unit is installed, "height direction" refers to the up-down direction when the indoor unit is installed, and "thickness direction" refers to the front-back direction when the indoor unit is installed; the width direction, thickness direction, and height direction are orthogonal to each other.

[0032] The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] The present application will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0035] A first aspect of this application provides an indoor unit for a heat pump unit. For example... Figures 1-4 As shown, the indoor unit of the heat pump unit includes a casing 100, which constitutes the overall appearance of the indoor unit of the heat pump unit.

[0036] A receiving cavity 101 is defined inside the housing 100, and various components for realizing the functions of the indoor unit are installed in the receiving cavity 101.

[0037] The housing 100 includes a back panel 110, which encloses the rear side of the receiving cavity 101. For the indoor unit of the wall-mounted heat pump unit, a hoisting component is provided on the side of the back panel 110 away from the receiving cavity 101. The hoisting component is used to install the indoor unit on the mounting surface, thereby realizing the hoisting of the indoor unit of the heat pump unit.

[0038] The housing 100 also includes a top plate 120, a side plate 130, and a bottom plate 140, which are used to close the top, sides, and bottom of the receiving cavity 101, respectively. The top plate 120, the side plate 130, and the bottom plate 140 define an opening 102 on the opposite side of the back plate 110.

[0039] Typically, the opening 102 of the housing 100 is located on the front side of the housing 100, which facilitates routine maintenance or inspection.

[0040] like Figure 2 As shown, a cover plate 200 is detachably installed at the opening part 102 for opening or closing the receiving cavity 101. When it is necessary to maintain or replace the components in the receiving cavity 101, the cover plate 200 can be removed and the corresponding components can be operated.

[0041] like Figures 3-8 As shown, an electrical box 300 is installed inside the receiving cavity 101. The electrical box 300 is used to install and protect the electrical components of the indoor unit to realize the corresponding control functions.

[0042] An electrical receiving cavity 330 is defined within the electrical box body 310, and electrical components such as a main control board 410, a relay 430, a fuse 440, and a terminal block 420 are installed within the receiving cavity 101 of the electrical box 300.

[0043] like Figures 5-10 As shown, the electrical box 300 includes an electrical box body 310, the electrical box body 310 includes a box back plate 311, and the opposite side of the box back plate 311 is open to form a box opening 320.

[0044] The electrical box 300 also includes a cover 390, which is placed over the opening 320 of the box body.

[0045] like Figure 3 and Figure 4 As shown, the opening 320 of the box body faces the opening 102 of the housing 100. When it is necessary to perform maintenance or inspection on the electrical components inside the electrical box 300, the cover 200 is first removed to expose the electrical box 300. Since the opening 320 of the electrical box 300 faces the opening 102, after removing the cover 390, the components inside the electrical box 300 can be operated through the opening 102, which facilitates daily maintenance and other operations.

[0046] In some embodiments, such as Figures 14-18 As shown, the electrical appliance receiving cavity 330 includes a main receiving area 331 and a layered receiving area 332.

[0047] The main receiving area 331 is positioned facing the box opening 320 and is used to install the main control board 410.

[0048] The layered accommodating area 332 is positioned facing the housing opening 320 and is located on one side of the main accommodating area 331. A layered plate 340 is installed in the layered accommodating area 332, which divides the layered accommodating area 332 into a first subspace 3321 and a second subspace 3322. The first subspace 3321 is located between the housing opening 320 and the layered plate 340 and is used to accommodate electrical components that require external wiring or operation. The second subspace 3322 is located between the layered plate 340 and the housing back plate 311 and is used to accommodate electrical components that do not require external wiring or operation.

[0049] In the above embodiment, the electrical appliance receiving cavity 330 adopts a partitioned and layered design, dividing it into a main receiving area 331 and a layered receiving area 332. The main control board 410 is installed in the main receiving area 331, facing the box opening 320, which facilitates adjustment, viewing segment displays, and other operations. Electrical components requiring external wiring or operation are placed in the upper first subspace 3321 of the layered receiving area 332, facing the box opening 320, for convenient operation. Electrical components not requiring external operation are placed in the lower second subspace 3322 of the layered receiving cavity 101, which reduces the potential impact during external operation and provides better protection. Through this method, a reasonable partitioned layout is achieved, improving the space utilization rate in the thickness direction of the electrical appliance box 300.

[0050] In some embodiments, such as Figure 6 , Figure 8 and Figure 14 As shown, various terminal blocks 420, such as functional terminal blocks, power terminal blocks, and communication terminal blocks, are installed in the first subspace 3321; relays 430, fuses 440, etc. are installed in the second subspace 3322.

[0051] In some embodiments, the electrical box body 310 further includes a box side plate 130, which is connected to the box back plate 311, and defines a box opening 320 on the side of the box side plate 130 away from the box back plate 311.

[0052] like Figures 14-18 As shown, the box side panel 130 includes a first side panel 312 and a second side panel 313 disposed opposite to each other. One end of the layered plate 340 is connected to the first side panel 312. A support plate 350 is installed in the second subspace 3322. The support plate 350 is disposed close to the second side panel 313. One end of the support plate 350 is connected to the box back panel 311, and the other end of the support plate 350 is connected to the layered plate 340 to support the layered plate 340.

[0053] With the above structural arrangement, one end of the support plate 350 is connected to the back plate 311 of the box and the other end is connected to the layer plate 340, so that the support plate 350 forms a support member that penetrates the second subspace 3322, providing reliable support for the layer plate 340 and realizing the fixed installation of the layer plate 340. This not only improves the stability of the layer plate 340, but also enhances the overall structural strength and rigidity of the electrical box 300.

[0054] In some embodiments, such as Figures 18-22 As shown, the layered plate 340 is connected to the first side plate 312 via the assembly plate 360. Specifically, the assembly plate 360 ​​includes a first assembly sub-plate 361 and a second assembly sub-plate 362 that are bent relative to each other. The first assembly sub-plate 361 is attached to and fixedly connected to the side of the layered plate 340 near the back plate 311 of the box body, and the second assembly sub-plate 362 is attached to and fixedly connected to the inner surface of the first side plate 312, thereby firmly fixing and supporting the layered plate 340 on the first side plate 312.

[0055] In some embodiments, such as Figures 14-22 As shown, a mounting plate 370 is installed on the inner surface of the back panel 311 of the box. The mounting plate 370 is used to fix the main control board 410 and the electrical components installed in the second subspace 3322. The mounting plate 370 can fix the main control board 410 and the electrical components located at the bottom layer, which facilitates overall assembly and disassembly, improves installation efficiency, and ensures the positioning accuracy and stability of each electrical component, thereby improving the structural reliability and system operation stability of the electrical box 300.

[0056] In some embodiments, the edge of the mounting plate 370 is connected to the back plate 311 of the housing, and the central area of ​​the mounting plate 370 is spaced apart from the back plate 311 of the housing. This spaced design of the mounting plate 370 creates an airflow space between the mounting plate 370 and the back plate 311 of the housing, which facilitates heat dissipation of electrical components, prevents heat accumulation, and improves the heat dissipation performance and operational reliability of the electrical box 300.

[0057] In some embodiments, such as 11, Figure 12 as well as Figures 19-22 As shown, a snap-fit ​​portion 371 is provided through the mounting plate 370; a plug-in portion 352 is provided on the side of the support plate 350 near the mounting plate 370. The plug-in portion 352 passes through the snap-fit ​​portion 371 and is positioned opposite to the mounting plate 370 to limit the support plate 350 to the mounting plate 370. Through the cooperation of the plug-in portion 352 and the snap-fit ​​portion 371, the support plate 350 can be positioned on the mounting plate 370, preventing the support plate 350 from shifting or shaking during assembly or operation, thereby improving the stability of the overall structure and the assembly accuracy.

[0058] In some embodiments, such as Figure 20As shown, the end of the support plate 350 near the layered plate 340 is bent to form a support portion 351, which is abutted against and fixedly connected to the layered plate 340; the end of the support plate 350 near the mounting plate 370 is provided with a connecting plate 380, which is opposite to and fixedly connected to the mounting plate 370. Optionally, the connecting plate 380 and the support plate 350 are an integral structure.

[0059] In the above embodiment, the two ends of the support plate 350 are fixedly connected to the layered plate 340 and the mounting plate 370 through the support portion 351 and the connecting plate 380, respectively, so that the support plate 350 forms a stable support structure, thereby effectively improving the installation stability of the layered plate 340, preventing the layered plate 340 from shifting, and making the overall structure more robust and reliable.

[0060] In some embodiments, such as Figure 6 , Figure 8 and Figure 14 As shown, a relay 430 is installed in the second subspace 3322. The relay 430 is connected to the support plate 350 to fix the relay 430 in the second subspace 3322. The support plate 350 serves the dual functions of supporting and fixing the layered plate 340 and installing the relay 430, resulting in higher component integration, reducing the need for additional mounting brackets, thereby simplifying the assembly structure, reducing manufacturing costs, and making the internal layout of the second subspace 3322 more compact and reasonable.

[0061] In some embodiments, such as Figure 18 As shown, at least a portion of the connecting plate 380 protrudes towards the opening of the housing to form a raised portion 381. A gap is formed between the raised portion 381 and the mounting plate 370. The surface of the relay 430 facing the mounting plate 370 is abutted against the raised portion 381, so that the relay 430 and the mounting plate 370 are spaced apart. The design of the raised portion 381 creates a gap between the relay 430 and the mounting plate 370, which facilitates heat dissipation during operation of the relay 430, improving its reliability and service life.

[0062] In some embodiments, such as Figure 9 As shown, the box side panel 130 also includes a third side panel 314, which is located between the first side panel 312 and the second side panel 313 and is adjacent to the layered accommodating area 332. A wire passage 3141 is provided through the third side panel 314, and the wire passage 3141 is connected to the first subspace 3321.

[0063] In the above embodiment, a cable passage 3141 is provided on the third side plate 314 adjacent to the layered accommodating area 332, and the cable passage 3141 is connected to the first subspace 3321, so that the cable can be directly led out from the first subspace 3321 and pass through the third side plate 314 to connect with external power supply and other equipment. This makes the wiring path more direct, reduces cable bending, improves wiring efficiency, and reduces the risk of cable being squeezed or worn, thereby improving the safety and reliability of the system.

[0064] In some embodiments, such as Figure 3 and Figure 4 As shown, the electrical box 300 is installed in the upper region of the receiving cavity 101. The water-fluorine heat exchanger, water system piping, and refrigerant system piping are installed in the lower region of the receiving cavity 101. Positioning the electrical box 300 upwards, away from the water-fluorine heat exchanger and water system piping located below, effectively avoids the risk of water ingress due to condensate or pipe leaks, thereby improving the waterproof performance and operational safety of the electrical system.

[0065] In some embodiments, the box opening 320 is located in a vertical plane, the second side plate 313 forms the top surface of the electrical box 300, and the edge of the second side plate 313 on the side of the box opening 320 is bent upward to form a water-retaining flange 3131, such as... Figure 11 and Figure 13 As shown; the second side panel 313 is inclined downwards from the box opening 320 toward the box back panel 311, as... Figure 9 As shown.

[0066] like Figures 5-11 As shown, the electrical box 300 also includes a cover 390, which covers the box opening 320 and, together with the box side panel 130, seals the electrical appliance receiving cavity 330. Figure 11 and Figure 13 As shown, the upper part of the lid 390 is abutted against the water-blocking flange 3131, and the top edge of the lid 390 is bent toward the rear side of the water-blocking flange 3131 to form the limiting flange 391.

[0067] In the above embodiment, the second side plate 313 is located at the top of the electrical box 300, and the second side plate 313 is provided with a water-blocking flange 3131 at the edge of the box opening 320. With the inclined setting of the second side plate 313, water at the top of the electrical box 300 can be guided to slide down to the rear of the electrical box 300, preventing water falling to the top of the electrical box body 310 from entering the electrical receiving cavity 330 along the edge of the second side plate 313. In addition, the limiting flange 391 on the box cover 390 cooperates with the water-blocking flange 3131, which not only limits the top of the box cover 390, but also assists in the positioning and installation of the box cover 390, improving the sealing and waterproof performance of the electrical box 300.

[0068] The electrical box 300 has a completely enclosed structure, which completely blocks the risk of external rain and leakage of water into internal components, achieving water and electricity isolation, improving the waterproof performance of the electrical box 300, and ensuring the safe and reliable operation of the electrical system in humid or splashing environments.

[0069] In some embodiments, such as Figure 6 and Figure 8 As shown, a sealing element 700 is provided at the connection between the cover 390 and the side panel 130 of the box body. The sealing element 700 is used to fill the gap between the cover 390 and the side panel 130 of the box body, further improving the sealing performance of the electrical box 300, preventing moisture or dust from entering the electrical receiving cavity 330, thereby improving the protection performance of electrical components.

[0070] In some embodiments, such as Figures 5-8 As shown, the indoor unit of the heat pump unit also includes an electrical box bracket 500. The electrical box bracket 500 extends in the thickness direction of the housing 100. One end of the electrical box bracket 500 is connected to the back panel 311 of the housing, and the other end of the electrical box bracket 500 is connected to the back panel 110, forming a reserved space 103 between the back panel 311, the back panel 110 and the electrical box bracket 500.

[0071] In the above embodiment, by installing an electrical box bracket 500 between the back plate 311 of the electrical box 300 and the back plate 110 of the housing 100, the electrical box 300 is separated from the back plate 110, thereby making the electrical box 300 closer to the opening part 102 of the housing 100, which facilitates wiring or maintenance of the electrical box 300. At the same time, a reserved space 103 is formed between the back plate 311, the back plate 110 and the electrical box bracket 500, which can be used to install other components, such as water pumps, so that the space in the thickness direction of the housing 100 is fully utilized, improving the utilization rate of the internal space of the unit.

[0072] In some embodiments, such as Figures 5-8 as well as Figure 23 As shown, the appliance box bracket 500 includes two bracket plates 510. The two bracket plates 510 are connected to each other and set at an angle. The two bracket plates 510 extend along the thickness direction of the housing 100, thereby pushing the appliance box 300 towards the opening 102 on the front side of the housing 100. By designing the bracket plates 510 that extend in the thickness direction of the housing 100, the space occupied between the back plate 311 and the back plate 110 of the box can be reduced, the volume of the reserved space 103 can be increased, and the space utilization rate can be further improved.

[0073] In some embodiments, such as Figure 23As shown, each support plate 510 is bent at the edge near the back plate 311 of the box to form a first support portion 511, which is attached to and fixedly connected to the back plate 311 of the box. Each support plate 510 is provided with a second support portion 512 near the edge of the back plate 110, which is attached to and fixedly connected to the back plate 110.

[0074] In the above embodiment, the two ends of the electrical box bracket 500 form surface contact with the box back plate 311 and back plate 110 at the assembly position through the first support portion 511 and the second support portion 512, respectively, thereby improving the reliability of the assembly and the stability of the support for the electrical box 300. Optionally, the first support portion 511 and the second support portion 512 are fastened to the box back plate 311 and back plate 110, respectively, by screws.

[0075] In some embodiments, the first support portion 511 and the second assembly portion bend in opposite directions and provide support from both sides of the bracket plate 510, thereby further improving the support stability of the electrical box bracket 500.

[0076] In some embodiments, such as Figure 23 As shown, a positioning hole 620 is formed through the first support part 511 and the second support part 512. Correspondingly, a positioning protrusion 610 is provided on the back plate 311 and the back plate 110 of the box body. The positioning protrusion 610 cooperates with the positioning hole 620 and can play a positioning role during the assembly process, thereby improving the positioning accuracy of the electrical box bracket 500 and facilitating the assembly operation.

[0077] In some embodiments, such as Figure 23 As shown, two support plates 510 are provided with a through-hole 513. The through-hole 513 is formed in the middle area of ​​the support plate 510. The through-hole 513 can reduce the overall weight of the electrical box support 500, improve the reliability of the assembly connection, and at the same time, it can also improve the air circulation in the receiving cavity 101 to a certain extent, which is beneficial to the heat dissipation of the electrical box 300.

[0078] In some embodiments, two electrical box brackets 500 are provided, and the two electrical box brackets 500 are respectively installed on both sides of the back plate 311 of the box body in the width direction of the housing 100.

[0079] In each appliance box bracket 500, the edge of one bracket plate 510 near the back plate 311 of the box body is aligned with the upper edge of the back plate 311 of the box body, and the edge of the other bracket plate 510 near the back plate 311 of the box body is aligned with the side edge of the back plate 311 of the box body in the width direction of the housing 100.

[0080] In the above embodiment, two appliance box brackets 500 support the appliance box 300 on both sides of the back plate 311, respectively, so that the appliance box 300 can be stably supported in the width direction, improving the stability of the appliance box 300. The edges of the two bracket plates 510 in each appliance box bracket 500 are aligned with the upper edge and side edge of the back plate 311, respectively, forming a continuous reserved space 103 between the back plate 311 and the back plate 110, maximizing the volume of the reserved space 103, improving the accommodation capacity of the reserved space 103, and making full use of the internal space of the indoor unit.

[0081] A second aspect of this application also provides a heat pump unit indoor unit, which includes a housing 100, a receiving cavity 101 defined within the housing 100, and an opening 102 formed on one side of the housing 100.

[0082] An electrical box 300 is installed in the receiving cavity 101. The electrical box 300 includes an electrical box body 310. The electrical box body 310 is open on the side facing the opening portion 102 to form a box opening 320. An electrical receiving cavity 330 is defined inside the electrical box body 310. A layered plate 340 is installed in the electrical receiving cavity 330. The layered plate 340 is disposed on the side facing the box opening 320 and close to the side of the electrical box body 310.

[0083] The electrical appliance housing includes a main housing area 331 and a layered housing area 332. The main housing area 331 does not have a layered panel 340 and is used to install the main control board 410. The layered housing area 332 has a layered panel 340, which divides it into a first subspace 3321 near the housing opening 320 and a second subspace 3322 away from the housing opening 320. The first subspace 3321 is used to accommodate electrical components requiring external wiring or operation, while the second subspace 3322 is used to accommodate electrical components that do not require external wiring or operation.

[0084] The indoor unit of the heat pump unit provided in the second aspect of this application may overlap with the indoor unit of the heat pump unit provided in the first aspect, but this should not be construed as limiting each other by mutual exclusion.

[0085] Other structures of the indoor unit of the heat pump unit provided in the second aspect above can be referred to the embodiments in the first aspect, and will not be repeated here.

[0086] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0087] The above embodiments are only used to illustrate the technical solutions of this application and not to limit them; although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this application or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of this application, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in this application.

Claims

1. An indoor unit of a heat pump unit, characterized in that, include: A housing, having a receiving cavity defined within it, with an opening on one side forming an opening portion; An electrical box is installed within the receiving cavity. The electrical box includes a box body, which includes a back panel. The back panel is open on the opposite side to form a box opening, which faces the opening portion. An electrical receiving cavity is defined within the electrical box body. The electrical receiving cavity includes: The main receiving area, facing the opening of the box, is used to install the main control board; A layered accommodating area is provided facing the opening of the housing and located on one side of the main accommodating area. A layered plate is installed in the layered accommodating area, which divides the layered accommodating area into a first subspace and a second subspace. The first subspace is located between the opening of the housing and the layered plate and is used to accommodate electrical components that require external wiring or operation. The second subspace is located between the layered plate and the back plate of the housing and is used to accommodate electrical components that do not require external wiring or operation.

2. The indoor unit of the heat pump unit according to claim 1, characterized in that, The electrical box body also includes a box side panel, which is connected to the box back panel, and defines the box opening on the side of the box side panel away from the box back panel; The box body side panel includes a first side panel and a second side panel arranged opposite to each other. One end of the layered plate is connected to the first side panel. A support plate is installed in the second subspace. The support plate is arranged close to the second side panel. One end of the support plate is connected to the box body back panel. The other end of the support plate is connected to the layered plate to support the layered plate.

3. The indoor unit of the heat pump unit according to claim 2, characterized in that, An mounting plate is installed on the inner surface of the back panel of the box, and the mounting plate is used to fix the main control board and electrical components installed in the second subspace; The edge of the mounting plate is connected to the back plate of the box, the middle area of ​​the mounting plate is spaced apart from the back plate of the box, and a snap-fit ​​part is provided through the mounting plate; The support plate has a plug-in portion on the side near the mounting plate. The plug-in portion passes through the snap-fit ​​portion and is positioned opposite to the mounting plate to confine the support plate to the mounting plate.

4. The indoor unit of the heat pump unit according to claim 3, characterized in that, The end of the support plate near the layered plate is bent to form a support portion, and the support portion is attached to and fixedly connected to the layered plate; The support plate has a connecting plate at its end near the mounting plate, and the connecting plate is disposed opposite to and fixedly connected to the mounting plate.

5. The indoor unit of the heat pump unit according to claim 4, characterized in that, A relay is installed in the second subspace and is connected to the support plate to fix the relay in the second subspace. At least a portion of the connecting plate protrudes in the direction of the opening of the housing to form a raised portion, and a gap is formed between the raised portion and the mounting plate. The surface of the relay facing the mounting plate is abutted against the raised portion so that the relay and the mounting plate are spaced apart.

6. The indoor unit of the heat pump unit according to claim 2, characterized in that, The box body side panel also includes a third side panel, which is located between the first side panel and the second side panel and is adjacent to the layered accommodating area. A wire guide is provided through the third side panel, and the wire guide is connected to the first subspace.

7. The indoor unit of the heat pump unit according to claim 2, characterized in that, The electrical box is installed in the upper region of the receiving cavity. The opening of the box is located in the vertical plane. The second side plate forms the top surface of the electrical box. The edge of the second side plate on the side of the opening of the box is bent upward to form a water-blocking flange. The second side plate is inclined from the opening of the box towards the back plate of the box at a lower height. The electrical box also includes a lid, which covers the opening of the box body and closes the electrical appliance receiving cavity. The upper part of the lid is abutted against the water-blocking flange, and the top edge of the lid is bent toward the rear side of the water-blocking flange to form a limiting flange.

8. The indoor unit of the heat pump unit according to claim 2, characterized in that, The housing also includes a back plate, which is located on the opposite side of the opening portion; The indoor unit of the heat pump unit also includes an electrical box bracket, which extends in the thickness direction of the casing. One end of the electrical box bracket is connected to the back panel of the casing, and the other end of the electrical box bracket is connected to the back panel, forming a reserved space between the back panel of the casing, the back panel, and the electrical box bracket.

9. The indoor unit of the heat pump unit according to claim 8, characterized in that, The appliance box bracket includes two bracket plates connected to each other and set at an angle. The two bracket plates extend along the thickness direction of the casing. Each bracket plate is bent near the edge of the box back plate to form a first support part. The first support part is abutted and fixedly connected to the box back plate. Each bracket plate is provided with a second support part near the edge of the back plate. The second support part is abutted and fixedly connected to the back plate.

10. An indoor unit of a heat pump unit, characterized in that, include: A housing, having a receiving cavity defined within it, with an opening on one side forming an opening portion; An electrical box is installed in the receiving cavity. The electrical box includes an electrical box body, which is open on the side facing the opening portion to form a box opening. An electrical receiving cavity is defined within the electrical box body. A layered plate is installed in the electrical receiving cavity. The layered plate is disposed on the side facing the box opening and close to the electrical box body. The electrical appliance housing space includes: The main accommodating area does not have the aforementioned layered board; the main accommodating area is used to install the main control board. The layered accommodating area is provided with the layered plate and is divided by the layered plate into a first subspace near the opening of the box body and a second subspace away from the opening of the box body. The first subspace is used to accommodate electrical components that require external wiring or operation, and the second subspace is used to accommodate electrical components that do not require external wiring or operation.

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