Wall-mounted heat pump unit indoor unit

Abstract

The application provides a wall-mounted heat pump unit indoor unit, which comprises a shell, a containing cavity is defined in the shell, the shell comprises a back plate and a bottom plate, the back plate closes the rear side of the containing cavity and is used for being connected with a mounting surface, the bottom plate is located at the bottom of the containing cavity, and a drainage part for draining water is arranged on the bottom plate; a pipeline is arranged in the containing cavity, the pipeline is led out from the bottom of the containing cavity to form a pipeline interface; the indoor unit further comprises a nozzle fixing plate, the nozzle fixing plate comprises a positioning plate located at the bottom of the containing cavity, the positioning plate is connected with the bottom plate and jointly closes the bottom of the containing cavity, the positioning plate is arranged close to the back plate and is inclinedly arranged from the back plate to the bottom plate in a height-reducing mode, so as to drain water falling on the positioning plate to the bottom plate. Through improvement on the structure of the bottom of the indoor unit, the drainage and drainage functions are realized, the independent water receiving disc structure is cancelled, the integration of the indoor unit is improved, and the structure compactness and size miniaturization of the unit are beneficial.

Description

Technical Field

[0001] This application relates to the field of heat pump equipment technology, and in particular to an indoor unit of a wall-mounted 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 water and refrigerant pipes connect to the heat exchanger, and during operation, water and refrigerant exchange heat in the heat exchanger, thereby heating or cooling the indoor air or water supply.

[0004] However, during long-term operation of heat pump units, water pipe leaks or condensation dripping may occur inside the indoor unit, leading to the risk of water damage. To avoid this problem, existing technologies typically include a plastic drip tray inside the indoor unit to collect and drain any dripping liquid. However, this type of drip tray has a relatively independent structure, occupies limited internal space, increases the number of components, and is not conducive to the overall compactness and miniaturization of the unit. Utility Model Content

[0005] To address at least one shortcoming in the related technologies, this application provides a wall-mounted heat pump unit indoor unit. By improving the structure forming the bottom of the indoor unit, it realizes the functions of water diversion and drainage, thereby eliminating the independent water tray structure, improving the integration of the indoor unit, and contributing to the overall compactness and miniaturization of the unit.

[0006] This application provides an indoor unit for a wall-mounted heat pump unit, including: The housing defines a receiving cavity inside the housing. The housing includes a back plate and a bottom plate. The back plate closes the rear side of the receiving cavity and is used to connect with the mounting surface. The bottom plate is located at the bottom of the receiving cavity and has a drainage part for drainage. Pipelines are laid inside the receiving cavity and lead outward from the bottom of the receiving cavity to form pipeline interfaces; The pipe fixing plate is used to fix the pipe interface. The pipe fixing plate includes a positioning plate located at the bottom of the receiving cavity. The positioning plate is connected to the bottom plate and together they seal the bottom of the receiving cavity. The positioning plate is set close to the back plate and is inclined at a lower height from the back plate to the bottom plate so as to guide the water falling on the positioning plate to the bottom plate.

[0007] In the above technical solution, the bottom plate located at the bottom of the housing cooperates with the pipe fixing plate to achieve the functions of drainage and water diversion. This can effectively prevent water from stagnating or accumulating inside the casing and reduce the risk of electrical components getting damp, corroded or short-circuited. This drainage solution replaces the traditional water receiving tray, thereby reducing the number of internal parts, saving internal space in the housing, and improving the reliability of drainage and the integration of the overall structure. This is conducive to the overall compactness and miniaturization of the unit.

[0008] In some embodiments, the back plate is parallel to the mounting surface, and the positioning plate is at an obtuse angle to the back plate; or, the top of the back plate is away from the mounting surface relative to the bottom of the back plate, and the positioning plate is at a right angle to the back plate, so that the positioning plate is inclined at a reduced height from the back plate towards the bottom plate.

[0009] The above technical solution provides two different ways to achieve the positioning plate diversion function. By tilting the positioning plate relative to the back plate, or by tilting the whole machine, the positioning plate is tilted so that its height is reduced from the back plate to the bottom plate, thus ensuring the realization of the positioning plate diversion function.

[0010] In some embodiments, a positioning plate extends from the back plate to the front of the receiving cavity. A plurality of first sub-positioning portions are provided through the positioning plate, which are close to the front side of the positioning plate and extend to the front edge of the positioning plate. A plurality of second sub-positioning portions are provided through the bottom plate, which are close to the rear side of the bottom plate and extend to the rear edge of the bottom plate. The plurality of first sub-positioning portions and the plurality of second sub-positioning portions are connected one by one to form a plurality of pipe port positioning portions. The pipe interface passes through the pipe port positioning portion, and a sealing element is provided between the pipe interface and the pipe port positioning portion.

[0011] In the above technical solution, the positioning plate and the base plate together define the pipe positioning part, which can facilitate the positioning and installation of the pipe interface, improve assembly efficiency and stability, and make the assembly process more convenient and efficient. At the same time, with the installation of the sealing element, the sealing of the pipe positioning part is guaranteed, avoiding the risk of water leakage.

[0012] In some embodiments, the pipe fixing plate further includes a connecting plate, which is vertically arranged and connected to the back plate. The bottom of the connecting plate is connected to the rear edge of the positioning plate. A portion of the connecting plate protrudes in a direction away from the back plate to form a pipe fixing part. The front side of the pipe fixing part is close to the rear side of the pipe positioning part. A locking member for fixing the pipe is installed on the front side of the pipe fixing part. The pipe is fixed to the front side of the pipe fixing part via the locking member and extends to the pipe positioning part.

[0013] In the above technical solution, the pipe fixing plate is connected to the back plate through the connecting plate. The front side of the connecting plate is provided with a pipe fixing part near the rear side of the pipe positioning part. By installing locking parts on the pipe fixing part, the pipe can be reliably limited and fixed, so that the pipe is effectively supported before extending to the pipe positioning part. This facilitates the connection operation between the pipe interface and the external pipe, avoids shaking during installation or use, and improves the reliability of system operation.

[0014] In some embodiments, the upper surface of the base plate is provided with a first protrusion, the first protrusion is disposed near the front side of the base plate, and the rear edge of the first protrusion is recessed toward the front side to form a water collection area behind the first protrusion, and the drainage part is disposed in the water collection area.

[0015] In the above technical solution, the first protrusion on the base plate forms a water-blocking effect on the water collection area. Water falling onto the base plate can be guided by the first protrusion to the water collection area and smoothly discharged outside the casing through the drainage part, preventing water falling on the base plate from scattering everywhere, preventing water from lingering on the surface of the base plate, improving drainage efficiency, and enhancing the reliability and service life of the unit.

[0016] In some embodiments, the upper surface of the base plate is further provided with a second protrusion, the second protrusion and the first protrusion being arranged side by side in the width direction of the base plate; a wire threading portion for cable to pass through is provided on the base plate, the wire threading portion being provided on the second protrusion.

[0017] In the above technical solution, the cable threading part is located on the second protrusion on the base plate, which can improve the cable installation position, prevent water from accumulating around the cable, thereby reducing the risk of cable getting damp or short-circuiting, and improving the reliability and safety of the whole machine operation.

[0018] In some embodiments, the housing further includes a top plate and two side plates, which are connected to a back plate and enclose the top and sides of the receiving cavity, respectively. An opening is defined on the front side of the housing by the top plate, the two side plates, and the bottom plate. A mating portion is continuously provided along the front edge of the top plate and the two side plates, extending in a direction that reduces the size of the opening. A waterproof baffle is continuously provided along the edge of the mating portion, extending towards the front side of the housing. The indoor unit of the wall-mounted heat pump unit also includes a cover plate for closing the opening. The top and sides of the cover plate extend toward the housing to form a folded portion. The edge of the folded portion abuts against the mating portion. The waterproof baffle is located inside the folded portion and covers the contact point between the folded portion and the mating portion.

[0019] In the above technical solution, the housing and the cover are tightly assembled through the cooperation of the mating part and the folding part. At the same time, the waterproof edge covers the seam between the mating part and the folding part on the inside, which can effectively prevent external rainwater or dust from directly entering the cavity through the gap between the housing and the cover, thereby improving the overall protective performance of the housing.

[0020] In some embodiments, limiting portions are provided on both sides of the cover plate. Each limiting portion includes an extension section and a limiting section. The extension section is provided from the cover plate toward the mating portion, and the limiting section is bent at the end of the extension section. The mating portion has a snap-fit ​​portion formed through the limiting portion. The dimension of the snap-fit ​​portion along the height direction of the housing is larger than the dimension of the limiting portion along the height direction of the cover plate, so that the limiting portion passes through the snap-fit ​​portion. In the installed state, the extension section passes through the snap-fit ​​portion, and the limiting section is opposite to the mating portion to prevent the limiting portion from coming out of the snap-fit ​​portion.

[0021] In the above technical solution, the cover plate is detachably installed at the opening of the housing by the limiting cooperation between the limiting part and the snap-fit ​​part, so as to realize the quick installation and removal of the cover plate, simplify the installation process and improve the assembly efficiency.

[0022] In some embodiments, a portion of the cover plate is recessed inward to form a recess, on which a decorative panel is detachably mounted. The decorative panel is flush with the front surface of the cover plate, and an installation window is provided through the decorative panel and the recess, in which a control panel or a replacement cover for the control panel is mounted.

[0023] In the above technical solution, a control panel mounting structure is provided on the cover, so that the control panel faces the user for easy operation; at the same time, a replacement cover for the control panel is also provided as a replacement structure for installation, adapting to different usage needs and environments. When the control panel is not required or the unit is installed outdoors, the replacement cover for the control panel can be used to supplement the installation window, ensuring the safety of the unit.

[0024] This application also provides an indoor unit for a wall-mounted heat pump unit, comprising: The housing has a defined cavity inside, and pipes are installed inside the cavity and led out from the bottom of the cavity. A base plate, located at the bottom of the receiving cavity, has a drainage section for drainage; The pipe fixing plate is located at the bottom of the receiving cavity and is used to fix the pipe. The pipe fixing plate includes a positioning plate extending from the back plate to the bottom plate. The positioning plate is set at an angle to the horizontal plane. The opening of the angle faces the front side of the housing and is located below the horizontal plane so as to guide water falling on the positioning plate to the bottom plate.

[0025] In the above technical solution, the bottom plate located at the bottom of the housing cooperates with the pipe fixing plate to achieve the functions of drainage and water diversion. This can effectively prevent water from stagnating or accumulating inside the casing and reduce the risk of electrical components getting damp, corroded or short-circuited. This drainage solution replaces the traditional water receiving tray, thereby reducing the number of internal parts, saving internal space in the housing, and improving the reliability of drainage and the integration of the overall structure. This is conducive to the overall compactness and miniaturization of the unit. Attached Figure Description

[0026] Figure 1 A perspective view of the indoor unit of a wall-mounted 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 wall-mounted heat pump unit provided in the embodiment of this application; Figure 3 This is a front view of the indoor unit of a wall-mounted heat pump unit provided in an embodiment of this application; Figure 4 This is a perspective view of the indoor unit of a wall-mounted heat pump unit after the cover plate has been removed, as provided in an embodiment of this application. Figure 5 This is a front view of the indoor unit of the wall-mounted heat pump unit after the cover plate has been removed, as provided in the embodiment of this application. Figure 6 This is a side view of the indoor unit of a wall-mounted heat pump unit after the cover plate has been removed, as provided in an embodiment of this application. Figure 7 This is a perspective view of the assembly state of the back plate and the various components inside the receiving cavity in the embodiments of this application; Figure 8 This is an assembly state diagram of the back plate, bottom plate, and nozzle fixing plate in an embodiment of this application; Figure 9 This is an exploded view of the back plate, bottom plate, and nozzle fixing plate in an embodiment of this application; Figure 10 This is a perspective view of the base plate in an embodiment of this application; Figure 11 This is a top view of the base plate in an embodiment of this application; Figure 12 This is a perspective view of the pipe fixing plate in the embodiment of this application; Figure 13 This is a bottom view of the nozzle fixing plate in the embodiment of this application; Figure 14 This is a front view of the pipe fixing plate in an embodiment of this application; Figure 15 This is a side view of the nozzle fixing plate in an embodiment of this application; Figure 16 This is a side view of the nozzle fixing plate in another embodiment of this application; Figure 17 This is a perspective view of the cover plate in an embodiment of this application; Figure 18 for Figure 17 A magnified view of part A in the middle; Figure 19 This is a schematic diagram of the connector structure in an embodiment of this application; Figure 20 This is a schematic diagram of the connector structure in another embodiment of this application; Figure 21 This is a side view of the cover plate in an embodiment of this application; Figure 22 for Figure 21 A magnified view of part B in the middle; Figure 23 for Figure 4 A partial enlarged view of the top area of ​​the casing shown in the image; Figure 24 for Figure 6 A partial enlarged view of the area near the opening at the top of the casing shown in the diagram; Figure 25 This is an assembly state diagram of the cover plate, decorative panel, and control panel in an embodiment of this application; Figure 26 for Figure 25 The exploded view shows the cover plate, decorative panel, and control panel.

[0027] In the picture: 100. Housing; 101. Receiving cavity; 102. Opening; 103. Pipe positioning part; 110. Back plate; 120. Top plate; 130. Side plate; 140. Bottom plate; 141. Drainage part; 142. Water-blocking part; 143. Second sub-positioning part; 144. First protrusion; 145. Second protrusion; 146. Water collection area; 147. Wiring part; 150. Fitting part; 151. Snap-fit ​​part; 160. Waterproof edge; 200. Cover plate; 210. Folding part; 220. Limiting part; 221. Extension section; 222. Limiting section; 230. Connector; 240, Recessed part; 300, Pipe fixing plate; 310, Positioning plate; 311, First sub-positioning part; 320, Connecting plate; 321, Pipe fixing part; 400, Heat exchanger; 500, Pipe; 510, Pipe interface; 520, Water pipe; 530, Refrigerant pipe; 610, Sealing strip; 620, Sealing element; 700, Locking element; 710, U-shaped clamp; 720, R-shaped clamp; 800, Electrical box; 810, Box body; 820, Cover; 910, Decorative panel; 920, Installation window; 930, Control panel replacement cover; Detailed Implementation 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.

[0028] 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.

[0029] In the description of this application, it should be understood that the terms "center", "lateral", "vertical", "upper", "lower", "front", "rear", "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.

[0030] 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.

[0031] 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.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. The term "multiple" in this application refers to two or more.

[0033] 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.

[0034] This application provides an indoor unit for a wall-mounted heat pump unit. For example... Figures 1-6 As shown, the indoor unit of the wall-mounted heat pump unit includes a housing 100. The housing 100 constitutes the overall appearance of the indoor unit of the heat pump unit. 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.

[0035] like Figure 7 As shown, the housing 100 includes a back plate 110, which encloses the rear side of the receiving cavity 101 and is used to connect with the mounting surface.

[0036] A hoisting component is provided on the side of the back panel 110 away from the receiving cavity 101 (i.e., the rear side of the back panel 110). 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.

[0037] like Figures 1-6 As shown, the housing 100 also includes a top plate 120, two side plates 130, and a bottom plate 140. The top plate 120 and the two side plates 130 are connected to the back plate 110 and respectively enclose the top and sides of the receiving cavity 101; the bottom plate 140 is located at the bottom of the receiving cavity 101. The top plate 120, the two side plates 130, and the bottom plate 140 define an opening 102 on the front side of the housing 100.

[0038] like Figures 1-3 As shown, the indoor unit of the wall-mounted heat pump unit also includes a cover plate 200, which is used to close the opening 102 on the front side of the casing 100. The cover plate 200 is detachably installed in the opening 102 and is used to open or close 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.

[0039] like Figure 4 , Figure 5 and Figure 7 As shown, a heat exchanger 400 is installed inside the receiving cavity 101. The heat exchanger 400 is specifically a water-fluorine heat exchanger 400, which has water passages and refrigerant flow channels to realize heat exchange between water and refrigerant.

[0040] In some embodiments, to improve the heat exchange effect, the water circuit and refrigerant channel are arranged in an up-down flow direction along the height of the casing 100, so that the heat exchange medium can fully contact and flow in the vertical direction, thereby improving the heat transfer efficiency and further improving the overall energy efficiency of the indoor unit.

[0041] like Figure 4 , Figure 5 and Figure 7 As shown, a pipe 500 is arranged within the receiving cavity 101. Optionally, the pipe 500 includes a water pipe 520 and a refrigerant pipe 530, which are respectively connected to the water interface and the refrigerant interface of the heat exchanger 400. The pipe 500 extends outward from the bottom of the receiving cavity 101 to form a pipe interface 510, which is used to connect with an external pipe 500 to realize the circulation of the water system and the refrigerant system.

[0042] Optionally, the pipe interface 510 includes a water inlet, a water outlet, a refrigerant inlet, and a refrigerant outlet.

[0043] In some embodiments, such as Figures 7-9 and Figures 12-14 As shown, the indoor unit also includes a pipe port fixing plate 300, which is used to fix the pipe interface 510. The pipe port fixing plate 300 includes a positioning plate 310 located at the bottom of the receiving cavity 101. The positioning plate 310 is connected to the base plate 140 and together they seal the bottom of the receiving cavity 101.

[0044] In this embodiment, the traditional water tray structure is eliminated inside the housing 100, thereby simplifying the number of components and reducing the space occupied in the receiving cavity 101. By structurally designing the bottom plate 140 and the pipe fixing plate 300 located at the bottom of the receiving cavity 101, both of them can perform the original functions of support and fixation, as well as water guiding and drainage functions.

[0045] like Figure 10 and Figure 11 As shown, a drainage section 141 for drainage is provided on the base plate 140. Optionally, the drainage section 141 is an opening that penetrates the base plate 140, and the drainage section 141 is connected to an external water pipe 520, thereby draining the water accumulated on the base plate 140 to the outside.

[0046] The positioning plate 310 is positioned close to the back plate 110 and is inclined at a lower height from the back plate 110 toward the bottom plate 140, so as to guide the water falling on the positioning plate 310 to the bottom plate 140, and then discharge it outward through the drainage part 141 on the bottom plate 140.

[0047] Through the diversion function of the positioning plate 310 and the drainage function of the drainage part 141 on the base plate 140, water can be effectively prevented from stagnating or accumulating inside the casing 100, reducing the risk of electrical components getting damp, corroded or short-circuited. This drainage solution replaces the traditional water receiving tray, thereby reducing the number of internal parts, saving internal space in the housing 101, reducing manufacturing costs, and improving the reliability of drainage and the integration of the overall structure, which is conducive to the overall compactness and miniaturization of the unit.

[0048] Understandably, to ensure the diversion effect, the width of the positioning plate 310 should be as large as possible, at least greater than the width of the components of the unit's built-in system that may leak or drip water, so that the leaking or dripping water can be directly diverted to the base plate 140 and discharged by the drainage section 141.

[0049] In some embodiments, such as Figures 7-9 As shown, the width of the positioning plate 310 is smaller than the width of the base plate 140, and the gap between the positioning plate 310 and the two side plates 130 is closed by the base plate 140. A sealing strip 610 is provided at the connection between the base plate 140 and the two side plates 130. The sealing strip 610 is pressed between the side plates 130 and the base plate 140 to achieve a sealing effect and prevent water above the base plate 140 from flowing out through the gaps on both sides.

[0050] In some embodiments, such as Figure 10 As shown, the front edge of the base plate 140 is folded upward to form a water-blocking part 142. The water-blocking part 142 can effectively prevent water accumulated above the base plate 140 from flowing out from the front of the base plate 140, so that all the water accumulated above the base plate 140 is discharged outward through the drainage part 141, reducing the risk of water leakage.

[0051] In some embodiments, to achieve the drainage function of the positioning plate 310, such as Figure 16 As shown, the positioning plate 310 is inclined. In this embodiment, the back plate 110 is parallel to the mounting surface, and the positioning plate 310 and the back plate 110 form an obtuse angle. The obtuse angle between the positioning plate 310 and the back plate 110 allows the positioning plate 310 to be inclined with its height decreasing from the back plate 110 to the front side, ensuring the drainage function of the positioning plate 310 even if the back plate 110 is installed along a vertical plane.

[0052] In other embodiments, the entire machine is installed at an angle to achieve the drainage function of the positioning plate 310. In this embodiment, as... Figure 15 As shown, the positioning plate 310 and the back plate 110 are at a right angle. The top of the back plate 110 is far away from the mounting surface relative to the bottom of the back plate 110, so that the indoor unit is installed at an angle. The positioning plate 310 is tilted at a lower height from the back plate 110 toward the bottom plate 140.

[0053] It is understood that in the above two embodiments, it is assumed that the mounting surface is a vertical surface, such as a wall or the back of a closet.

[0054] In some embodiments, such as Figure 8-13As shown, the positioning plate 310 extends from the back plate 110 to the front of the receiving cavity 101. A plurality of first sub-positioning parts 311 are provided through the positioning plate 310, and the plurality of first sub-positioning parts 311 are close to the front side of the positioning plate 310 and extend to the front edge of the positioning plate 310. A plurality of second sub-positioning parts 143 are provided through the bottom plate 140, and the plurality of second sub-positioning parts 143 are close to the rear side of the bottom plate 140 and extend to the rear edge of the bottom plate 140. The plurality of first sub-positioning parts 311 and the plurality of second sub-positioning parts 143 are connected one by one to form a plurality of pipe port positioning parts 103. The pipe interface 510 passes through the pipe port positioning parts 103, and a sealing element 620 is provided between the pipe interface 510 and the pipe port positioning parts 103.

[0055] During the assembly process, the pipe port fixing plate 300 is first connected to the back plate 110 to position the pipe interface 510 in the corresponding first sub-positioning part 311. Then, the base plate 140 is assembled so that the first sub-positioning part 311 and the second sub-positioning part 143 cooperate to form the pipe port positioning part 103. At the same time, the pipe interface 510 is fixed in the pipe port positioning part 103, thereby realizing the positioning and installation of the pipe interface 510.

[0056] In the above embodiment, the positioning plate 310 and the base plate 140 together define the pipe port positioning part 103, which can facilitate the positioning and installation of the pipe interface 510, improve assembly efficiency and stability, and make the assembly process more convenient and efficient. At the same time, with the installation of the sealing element 620, the sealing of the pipe port positioning part 103 is guaranteed, avoiding the risk of water leakage.

[0057] In some embodiments, such as Figure 8 , Figure 9 and Figures 12-16 As shown, the nozzle fixing plate 300 also includes a connecting plate 320, which is vertically arranged and connected to the back plate 110. The bottom of the connecting plate 320 is connected to the rear edge of the positioning plate 310. Optionally, the connecting plate 320 and the positioning plate 310 are integrally formed.

[0058] A portion of the connecting plate 320 protrudes away from the back plate 110 to form a pipe fixing part 321. The front side of the pipe fixing part 321 is close to the rear side of the pipe opening positioning part 103. A locking member 700 for fixing the pipe 500 is installed on the front side of the pipe fixing part 321. The pipe 500 is fixed to the front side of the pipe fixing part 321 by the locking member 700 and extends to the pipe opening positioning part 103.

[0059] In the above embodiments, such as Figure 5 and Figure 7As shown, the pipe fixing plate 300 is connected to the back plate 110 via the connecting plate 320. The front side of the connecting plate 320 is provided with a pipe fixing part 321 near the rear side of the pipe positioning part 103. By installing the locking part 700 on the pipe fixing part 321, the pipe 500 can be reliably limited and fixed, thereby effectively supporting the pipe 500 before it extends to the pipe positioning part 103. This facilitates the connection operation between the pipe interface 510 and the external pipe 500, avoids shaking during installation or use, and improves the reliability of system operation.

[0060] In some embodiments, the pipeline 500 includes a water pipe 520 and a refrigerant pipe 530. The water pipe 520 passes through the corresponding pipe positioning part 103 to form a water inlet and a water outlet, respectively, and the refrigerant pipe 530 passes through the corresponding pipe positioning part 103 to form a refrigerant inlet and a refrigerant outlet, respectively.

[0061] In some embodiments, the locking member 700 includes a U-shaped clamp 710 and an R-shaped clamp 720.

[0062] The U-shaped clamp 710 has a U-shaped cross-section and is connected to the pipe fixing part 321 on both sides. The U-shaped clamp 710 and the pipe fixing part 321 work together to fix the water pipe 520.

[0063] The R-type clamp 720 has an annular cross-section, and the ends of the R-type clamp 720 are connected to form a closed structure for fixing the refrigerant pipe 530. Due to the wrap-around design of the R-type clamp 720, it has a good fixing effect on the refrigerant pipe 530, which can effectively buffer the vibration caused by the refrigerant flow and reduce noise.

[0064] The U-shaped clamp 710 and R-shaped clamp 720 are positioned as close as possible to the pipe opening positioning part 103 to improve the positioning effect of the pipe interface 510, prevent displacement during connection with the external pipe 500, and improve the operational convenience and safety of off-site installation.

[0065] In some embodiments, such as Figure 10 and Figure 11 As shown, the upper surface of the base plate 140 is provided with a first protrusion 144. The first protrusion 144 is provided near the front side of the base plate 140. The rear edge of the first protrusion 144 is recessed towards the front side to form a water collection area 146 behind the first protrusion 144. The drainage part 141 is provided in the water collection area 146.

[0066] In the above embodiment, by providing a first protrusion 144 on the base plate 140 and forming a water collection area 146 behind the first protrusion 144, the first protrusion 144 forms a water-blocking effect on the water collection area 146. Water falling on the base plate 140 can be guided by the first protrusion 144 to the water collection area 146 and smoothly discharged outside the casing 100 through the drainage part 141, avoiding water falling on the base plate 140 from scattering everywhere, preventing water from stagnating on the surface of the base plate 140, improving drainage efficiency, and enhancing the reliability and service life of the unit.

[0067] In some embodiments, such as Figure 10 and Figure 11 As shown, the upper surface of the base plate 140 is also provided with a second protrusion 145, and the second protrusion 145 and the first protrusion 144 are arranged side by side in the width direction of the base plate 140; a wire threading part 147 for cable to pass through is provided on the base plate 140, and the wire threading part 147 is provided on the second protrusion 145.

[0068] In the above embodiment, the cable threading part 147 is provided on the second protrusion 145 on the base plate 140, which can improve the cable installation position, prevent water from accumulating around the cable, thereby reducing the risk of cable getting damp or short-circuiting, and improving the reliability and safety of the whole machine operation.

[0069] In some embodiments, the wiring section 147 is located away from the water inlet and outlet, thereby preventing the cable from getting damp or short-circuited due to water pipe 520 leakage, and improving the safety of system operation.

[0070] In some embodiments, such as Figure 5 , Figure 6 , Figure 23 and Figure 24 As shown, mating portions 150 are continuously provided along the front edges of the top plate 120 and the two side plates 130. The mating portions 150 extend in the direction of reducing the size of the opening 102. Waterproof baffles 160 are continuously provided along the edges of the mating portions 150. The waterproof baffles 160 extend towards the front of the housing 100.

[0071] like Figure 17 and Figure 21 As shown, the top and sides of the cover plate 200 extend toward the housing 100 to form a folding portion 210. The edge of the folding portion 210 abuts against the mating portion 150. The waterproof baffle 160 is located inside the folding portion 210 and covers the mating point between the folding portion 210 and the mating portion 150.

[0072] In the above embodiment, the housing 100 and the cover plate 200 are tightly assembled through the cooperation of the mating part 150 and the folding part 210. At the same time, the waterproof edge 160 blocks the seam between the mating part 150 and the folding part 210 on the inside, which can effectively prevent external rainwater or dust from directly entering the receiving cavity 101 through the gap between the housing 100 and the cover plate 200. This improves the overall protective performance of the housing 100, avoids the internal components from being affected by moisture or dust accumulation, and further enhances the reliability and durability of the whole machine.

[0073] In some embodiments, such as Figure 17 , Figure 21 and Figure 22 As shown, limiting portions 220 are provided on both sides of the cover plate 200. The limiting portion 220 includes an extension section 221 and a limiting section 222. The extension section 221 is provided from the cover plate 200 toward the mating portion 150, and the limiting section 222 is provided by bending the end of the extension section 221.

[0074] like Figure 5 and Figure 23 As shown, the mating part 150 has a locking part 151 formed through the limiting part 220. The dimension of the locking part 151 along the height direction of the housing 100 is larger than the dimension of the limiting part 220 along the height direction of the cover plate 200, so that the limiting part 220 passes through the locking part 151.

[0075] When the cover plate 200 is installed, the extension section 221 passes through the snap-fit ​​portion 151, and the limiting section 222 is opposite to the mating portion 150 to prevent the limiting portion 220 from dislodging from the snap-fit ​​portion 151.

[0076] In the above embodiment, by cooperating with the limiting part 220 and the snap-fit ​​part 151, the cover plate 200 is detachably installed at the opening 102 of the housing 100, thereby realizing the quick installation and removal of the cover plate 200, simplifying the installation process and improving assembly efficiency.

[0077] When the limiting section 222 is bent downward relative to the extension section 221, it is only necessary to push the cover plate 200 upward so that the limiting section 222 is released from the restriction of the mating part 150, and the limiting part 220 is aligned with the snap-fit ​​part 151. At this time, the cover plate 200 is moved away from the housing 100, and the limiting part 220 is disengaged from the snap-fit ​​part 151, releasing the limiting effect and realizing the disassembly of the cover plate 200.

[0078] In some embodiments, the travel distance of the cover plate 200 during disassembly is designed to be 10mm, that is, the length of the limiting section 222 is 10mm, and the length of the snap-fit ​​part 151 is greater than or equal to 10mm, so that the cover plate 200 can be moved upward by at least 10mm to release the limiting effect of the limiting part 220, thereby improving the reliability of the cover plate 200 assembly, avoiding accidental displacement that could cause the cover plate 200 to fall off, and improving the safety of the entire machine.

[0079] Depending on actual needs, multiple limiting parts 220 and snap-fit ​​parts 151 may be provided on both sides of the cover plate 200 and the housing 100, respectively, and this application does not impose any restrictions.

[0080] In some embodiments, such as Figure 17 and Figure 18 As shown, a connector 230 is provided at the bottom of the cover plate 200. The connector 230 extends toward the housing 100 and is opposite to the upper surface of the front side of the base plate 140. The connector 230 and the base plate 140 are fastened together by fasteners, so that the cover plate 200 is fastened to the housing 100.

[0081] When it is necessary to remove the cover plate 200, first remove the fasteners connecting the bottom of the cover plate 200 to the base plate 140, and then push the cover plate 200 upward so that the limiting part 220 disengages from the snap-fit ​​part 151, thus completing the removal of the cover plate 200.

[0082] When the cover plate 200 needs to be installed, first bring the cover plate 200 close to the housing 100, with the limiting part 220 facing the snap-fit ​​part 151. Then, move the cover plate 200 closer to the housing 100 so that the limiting part 220 passes through the snap-fit ​​part 151. Then, move the cover plate 200 downward so that the limiting section 222 of the limiting part 220 is opposite to the mating part 150 to achieve the limiting function. Finally, fasten the connector 230 to the base plate 140 to complete the installation of the cover plate 200.

[0083] The cover plate 200 is installed at the opening 102 of the housing 100 through a dual method of limiting structure and fastening connection. The limiting structure can realize the quick positioning and initial fixation of the cover plate 200, which is convenient for subsequent fastening operations. The fastening connection provides a more reliable fixed connection, ensuring the stability of the connection between the cover plate 200 and the housing 100.

[0084] The connector 230 can be integrally molded with the cover plate 200 by in-mold injection molding, such as... Figure 19 As shown, injection molding channels are provided on the connecting surface of the connector 230 and the cover plate 200; the connector 230 can also be processed separately, such as... Figure 20 As shown, it is fixedly connected to the bottom of the cover plate 200 by fasteners such as screws.

[0085] In some embodiments, such as Figures 4-6As shown, an electrical box 800 is installed on the upper part of the receiving cavity 101. The electrical box 800 is a closed structure and includes a box body 810 and a cover 820. The opening of the box body 810 is located in the vertical plane and faces the front side of the housing 100. The cover 820 covers the front side of the box body 810 and is located outside the opening 102. The seam between the cover 820 and the box body 810 and the front edge of the waterproof edge 160 are offset in the vertical plane. The top surface of the electrical box 800 is inclined from front to back with decreasing height.

[0086] like Figure 24 As shown, the seam between the cover 820 and the box body 810 of the electrical box 800 is misaligned with the front edge of the waterproof baffle 160. This prevents water flowing down from the edge of the waterproof baffle 160 from dripping directly into the seam of the electrical box 800, thus improving the waterproof performance of the electrical box 800. At the same time, the inclined design of the fixed part surface of the electrical box 800 allows water falling onto the fixed part of the electrical box 800 to be diverted to the rear side, away from the seam between the box body 810 and the cover 820, ensuring the waterproof performance of the electrical box 800.

[0087] In some embodiments, such as Figure 25 and Figure 26 As shown, a portion of the surface of the cover plate 200 is recessed inward to form a recess 240. A decorative panel 910 is detachably installed on the recess 240. The decorative panel 910 is flush with the front surface of the cover plate 200. An installation window 920 is provided through the decorative panel 910 and the recess 240. A control panel 930 or a replacement cover for the control panel is installed in the installation window 920.

[0088] In the above embodiment, a control panel mounting structure is provided on the cover plate 200, and the control panel 930 is installed on the cover plate 200 so that the control panel faces the user for easy operation; at the same time, a control panel replacement cover (matching the shape and size of the control panel 930) is also provided as a replacement structure for installation, adapting to different usage needs and environments. When the control panel is not required or the unit is installed outdoors, the control panel replacement cover is used to supplement the installation window 920 to ensure the safety of the unit.

[0089] If only the wired controller needs repair, only the decorative panel 910 needs to be removed, without removing the entire cover 200, thus avoiding any impact on other components inside the housing 100.

[0090] A second aspect of this application also provides a wall-mounted heat pump unit indoor unit. The wall-mounted heat pump unit indoor unit includes a housing 100, a receiving cavity 101 defined inside the housing 100, and a pipe 500 arranged in the receiving cavity 101, the pipe 500 being led outward from the bottom of the receiving cavity 101.

[0091] A base plate 140 is installed at the bottom of the receiving cavity 101, and a drainage part 141 for drainage is provided on the base plate 140.

[0092] A pipe fixing plate 300 is also installed at the bottom of the receiving cavity 101, which fixes the pipe 500. The pipe fixing plate 300 includes a positioning plate 310 extending from the back plate 110 toward the bottom plate 140. The positioning plate 310 is set at an angle to the horizontal plane, and the opening of the angle faces the front side of the housing 100 and is located below the horizontal plane, so as to guide the water falling on the positioning plate 310 to the bottom plate 140.

[0093] The wall-mounted heat pump unit indoor unit provided in the second aspect of this application may overlap with the wall-mounted heat pump unit indoor unit provided in the first aspect, but this should not be construed as limiting each other by mutual exclusion.

[0094] 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.

[0095] 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. A wall-mounted heat pump indoor unit, characterized in that, include: A housing, wherein a receiving cavity is defined inside the housing, the housing includes a back plate and a bottom plate, the back plate closes the rear side of the receiving cavity and is used for connection with a mounting surface, the bottom plate is located at the bottom of the receiving cavity, and a drainage part for drainage is provided on the bottom plate; Pipelines are laid inside the receiving cavity and extend outward from the bottom of the receiving cavity to form pipeline interfaces; A pipe fixing plate is used to fix the pipe interface. The pipe fixing plate includes a positioning plate located at the bottom of the receiving cavity. The positioning plate is connected to the bottom plate and together they seal the bottom of the receiving cavity. The positioning plate is set close to the back plate and is inclined at a lower height from the back plate toward the bottom plate so as to guide water falling on the positioning plate to the bottom plate.

2. The indoor unit of the wall-mounted heat pump unit according to claim 1, characterized in that, The back plate is parallel to the mounting surface, and the positioning plate forms an obtuse angle with the back plate; or, the top of the back plate is away from the mounting surface relative to the bottom of the back plate, and the positioning plate forms a right angle with the back plate, so that the positioning plate is inclined at a lower height from the back plate toward the bottom plate.

3. The indoor unit of the wall-mounted heat pump unit according to claim 1 or 2, characterized in that, The positioning plate extends from the back plate toward the front of the receiving cavity. A plurality of first sub-positioning parts are provided through the positioning plate. The plurality of first sub-positioning parts are close to the front of the positioning plate and extend to the front edge of the positioning plate. A plurality of second sub-positioning parts are provided through the base plate, and the plurality of second sub-positioning parts are close to the rear side of the base plate and extend to the rear edge of the base plate; Multiple first sub-positioning parts and multiple second sub-positioning parts are connected one-to-one to form multiple pipe port positioning parts. The pipe interface passes through the pipe port positioning part, and a sealing element is provided between the pipe interface and the pipe port positioning part.

4. The indoor unit of the wall-mounted heat pump unit according to claim 3, characterized in that, The pipe fixing plate also includes a connecting plate, which is vertically arranged and connected to the back plate, and the bottom of the connecting plate is connected to the rear edge of the positioning plate. A portion of the connecting plate protrudes away from the back plate to form a pipe fixing part. The front side of the pipe fixing part is close to the rear side of the pipe opening positioning part. A locking member for fixing the pipe is installed on the front side of the pipe fixing part. The pipe is fixed to the front side of the pipe fixing part via the locking member and extends to the pipe opening positioning part.

5. The indoor unit of the wall-mounted heat pump unit according to claim 1, characterized in that, The upper surface of the base plate is provided with a first protrusion, which is located near the front side of the base plate. The rear edge of the first protrusion is recessed towards the front side to form a water collection area behind the first protrusion. The drainage part is located in the water collection area.

6. The indoor unit of the wall-mounted heat pump unit according to claim 5, characterized in that, The upper surface of the base plate is also provided with a second protrusion, which is arranged side by side with the first protrusion in the width direction of the base plate; The base plate is provided with a cable threading section for cables to pass through, and the cable threading section is located on the second protrusion.

7. The indoor unit of the wall-mounted heat pump unit according to claim 1, characterized in that, The housing also includes a top plate and two side plates, the top plate and the two side plates being connected to the back plate respectively and closing the top and sides of the receiving cavity, and the top plate, the two side plates and the bottom plate defining an opening on the front side of the housing; The top plate and the two side plates are provided with a continuous mating part at the front edge, the mating part extending in the direction of reducing the size of the opening, and a waterproof baffle is provided continuously at the edge of the mating part, the waterproof baffle extending towards the front of the housing; The indoor unit of the wall-mounted heat pump unit also includes a cover plate for closing the opening. The top and sides of the cover plate extend toward the casing to form a folded portion. The edge of the folded portion abuts against the mating portion. The waterproof baffle is located inside the folded portion and covers the contact point between the folded portion and the mating portion.

8. The indoor unit of the wall-mounted heat pump unit according to claim 7, characterized in that, Limiting portions are provided on both sides of the cover plate. Each limiting portion includes an extension section and a limiting section. The extension section is provided from the cover plate toward the mating portion, and the limiting section is provided by bending the end of the extension section. The mating part has a snap-fit ​​part formed through the limiting part, and the dimension of the snap-fit ​​part along the height direction of the housing is larger than the dimension of the limiting part along the height direction of the cover plate, so that the limiting part passes through the snap-fit ​​part; When the cover plate is installed, the extension section passes through the snap-fit ​​portion, and the limiting section is opposite to the mating portion to prevent the limiting portion from disengaging from the snap-fit ​​portion.

9. The indoor unit of the wall-mounted heat pump unit according to claim 7, characterized in that, A portion of the cover plate is recessed inward to form a recessed portion. A decorative panel is detachably installed on the recessed portion. The decorative panel is flush with the front surface of the cover plate. An installation window is provided through the decorative panel and the recessed portion. A control panel or a replacement cover for the control panel is installed in the installation window.

10. An indoor unit of a wall-mounted heat pump unit, characterized in that, include: A housing, with a receiving cavity defined inside the housing, and a pipeline arranged in the receiving cavity, the pipeline being led outward from the bottom of the receiving cavity; A base plate is located at the bottom of the receiving cavity, and a drainage section for draining water is provided on the base plate; A pipe fixing plate is located at the bottom of the receiving cavity and is used to fix the pipe. The pipe fixing plate includes a positioning plate extending from the back plate of the housing towards the bottom plate. The positioning plate is set at an angle to the horizontal plane, and the opening of the angle faces the front side of the housing and is located below the horizontal plane, so as to guide water falling on the positioning plate to the bottom plate.

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