Large-air-volume and high-static-pressure heat pump host and water heater

Abstract

The utility model discloses a large-air-volume and high-static-pressure heat pump host and a water heater, and belongs to the technical field of water heaters. The heat pump main machine comprises a fan assembly, an evaporation heat exchanger, a heat pump assembly, a base plate and a fixing frame arranged on the base plate, the evaporation heat exchanger and the fan assembly are arranged in the fixing frame side by side and vertically arranged on the base plate, and the heat pump assembly is arranged on the side where the evaporation heat exchanger and the fan assembly are arranged side by side. The fan assembly comprises a centrifugal impeller and a fan volute, an air outlet is formed in the top of the fan volute, the centrifugal impeller is arranged in the fan volute, the axis of the centrifugal impeller coincides with the axis of the fan volute, a driving motor is arranged at the axis of the centrifugal impeller, and the centrifugal impeller is driven by the driving motor and drains air through the fan volute. The heat pump main machine adopts a large-air-volume and high-static-pressure structural design and can be connected with an air pipe, cold air generated in the heating process is reused for indoor cooling, and the heat pump main machine can be used for multiple purposes in summer.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, specifically a high-volume, high-static-pressure heat pump unit and water heater. Background Technology

[0002] Traditional air source heat pump water heaters typically employ fixed integrated or split designs, requiring users to pre-determine the installation method at the time of purchase. However, due to the complexity of actual installation scenarios, such as building layout limitations, changes in user needs, or subsequent adjustments to equipment location, traditional structures are often difficult to adapt, leading to increased return and exchange rates and wasted transportation, installation, and commissioning costs. Furthermore, traditional heat pump units often need to be fixed to outdoor air conditioning brackets, limiting installation locations, and their appearance, typically featuring front-facing round air outlets, is visually crude and difficult to integrate into modern home environments, particularly impacting the aesthetics of living spaces like balconies and kitchens. Functionally, while existing heat pump units absorb heat from the air during heating, the generated cool air is usually directly released into the external environment, not effectively utilized. This waste of cool air resources is particularly significant in summer, failing to achieve secondary energy utilization. Additionally, traditional units require complex external ventilation systems when installed in enclosed spaces (such as equipment rooms), increasing construction difficulty and costs.

[0003] To address the aforementioned issues, there is an urgent need for an air source heat pump unit that combines installation flexibility, aesthetics, and comprehensive energy utilization capabilities to meet diverse user needs, reduce installation costs, and improve energy efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a high-volume, high-static-pressure heat pump unit and water heater to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-volume, high-static-pressure heat pump unit includes a fan assembly, an evaporative heat exchanger, a heat pump assembly, a chassis, and a fixed frame mounted on the chassis. The evaporative heat exchanger and the fan assembly are arranged side-by-side within the fixed frame and erected on the chassis. The heat pump assembly is located on one side where the evaporative heat exchanger and the fan assembly are arranged side-by-side. The fan assembly includes a centrifugal impeller and a fan casing with an air outlet at the top. The centrifugal impeller is placed within the fan casing, and the axis of the centrifugal impeller coincides with the axis of the fan casing. A drive motor is mounted on the axis of the centrifugal impeller, and the centrifugal impeller is driven by the drive motor and draws air through the fan casing.

[0007] The preferred embodiment of this utility model further includes a protective cover arranged along the outer periphery of the fixed frame. The protective cover includes a fan fixing plate and a top cover located on the top of the fixed frame. The fan volute includes a rear cover plate and an annular wall along the outer shape of the rear cover plate. An air inlet is opened on the rear cover plate. The rear cover plate, the annular wall, and the fan fixing plate together form the air outlet located at the top of the fan volute. The top cover has a through hole matching the air outlet and is installed on the top surface of the fixed frame. One end of the drive motor is fixedly connected to the rear cover plate, and the other end is connected to the fan fixing plate.

[0008] More preferably, a partition plate erected on the chassis is provided between the fan casing and the heat pump assembly. One side of the partition plate is fixed to the evaporator heat exchanger, and the other side of the partition plate is fixed to one end of the fan mounting plate. A space is left between the top of the partition plate and the top cover. The fan mounting plate has a motor mounting hole. The fan mounting plate is fixedly installed at the front end of the partition plate and the fixed frame. Multiple vertical ribs are also provided on the outer side of the fan mounting plate.

[0009] More preferably, the protective cover further includes a front panel, a left side panel, a right upright panel, and a right side panel; the front panel has a central planar structure with both sides bent inwards, and is located on the outer side of the fan fixing plate and fixedly installed at the front end of the fixing frame; the left side panel is located on the left side of the fixing frame;

[0010] The right upright plate is located at the right end of the front panel. The right side plate is a bent plate that stands upright at the right rear end of the fixed frame. The rear end of the right side plate and the outer facade of the evaporator heat exchanger form the rear end of the fixed frame. The right end of the right side plate and the right upright plate are engaged with both sides of the refrigerant interface panel located at the right end of the chassis.

[0011] The preferred embodiment of this utility model further includes a rainproof plate, which is located at the right end of the fixed frame and surrounds the right end of the right upright plate, the right side plate, and the fluorine circuit interface panel. The rainproof plate also has a main unit handle.

[0012] In a preferred embodiment of this utility model, water-blocking strips are provided around the bottom of the fixed frame, and the water-blocking strips are fixed to the chassis.

[0013] The preferred technical solution of this utility model is a water heater, comprising a high-volume, high-static-pressure heat pump unit and a water exchange tank. The heat pump unit is connected to the water exchange tank via a refrigerant line. The fan assembly drives air to flow into the evaporative heat exchanger, where it absorbs heat from the air. The heat pump assembly then drives the refrigerant to circulate continuously, transferring the heat from the air to the water exchange tank via the refrigerant line. The heat pump unit and water exchange tank can be installed separately or as a single unit, depending on the user's building environment. The heat pump unit uses a high-volume, high-static-pressure design and can be connected to ductwork to reuse the cool air generated during heating to cool the room, making it particularly useful in summer.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model heat pump unit, through centrifugal top-discharge combined with a high static pressure volute design, breaks through the performance bottleneck of traditional fans, enabling precise delivery of cool air to the room via ductwork, directly replacing air conditioning in summer for high efficiency and energy saving. Combined with a minimalist appearance with no front-facing air outlets, it completely eliminates the visual impact of traditional front-facing round air outlets, allowing the unit to blend into living spaces such as balconies and kitchens, enhancing aesthetics.

[0016] 2. The heat pump unit can be quickly connected to the water tank via the refrigerant interface panel, supporting independent installation in outdoor air conditioning locations or combined with the water tank, solving the problem of returns and exchanges due to changes in building layout. It seamlessly adapts to complex scenarios such as air conditioning locations, balconies, and equipment rooms, reducing installation costs. Through the design of the axially coincident impeller, fan casing, and baffle buffer, the operating noise is effectively reduced. At the same time, the water baffle combined with the rainproof plate provides double protection to achieve a high waterproof rating, ensuring long-term stable outdoor operation. The evaporator and fan are arranged side by side to shorten the airflow and reduce pressure loss, thereby improving heat exchange efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the high-volume, high-static-pressure heat pump main unit of this utility model;

[0018] Figure 2 This is an exploded view of the high-volume, high-static-pressure heat pump unit of this utility model.

[0019] Figure 3 This is a schematic diagram of the integrated structure of the water heater of this utility model;

[0020] Figure 4 This is a schematic diagram of the split structure of the water heater of this utility model;

[0021] In the diagram: 100-Heat pump main unit, 200-Hot water tank, 1-Fan assembly, 10-Air outlet, 11-Fan casing, 12-Drive motor, 13-Centrifugal impeller, 2-Evaporative heat exchanger, 3-Heat pump assembly, 4-Chassis, 40-Water baffle, 5-Fixed frame, 6-Protective cover, 60-Fan mounting bracket, 600-Rib, 61-Front panel, 62-Left side panel, 63-Right upright panel, 64-Right side panel, 65-Rainproof panel, 650-Main unit handle, 66-Top cover, 7-Fluorine circuit interface panel, 71-Fluorine circuit inlet, 72-Fluorine circuit outlet, 8-Drain outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 In this embodiment of the present invention, a high-volume, high-static-pressure heat pump host includes a fan assembly 1, an evaporator heat exchanger 2, a heat pump assembly 3, a chassis 4, and a fixed frame 5 mounted on the chassis 4. The evaporator heat exchanger 2 and the fan assembly 1 are arranged side by side within the fixed frame 5 and erected on the chassis 4. The heat pump assembly 3 is located on the side where the evaporator heat exchanger 2 and the fan assembly 1 are arranged side by side. The fan assembly 1 includes a centrifugal impeller 13 and a fan casing 11 with an air outlet 10 at the top. The centrifugal impeller 13 is placed in the fan casing 11, and the axis of the centrifugal impeller 13 coincides with the axis of the fan casing 11. A drive motor 12 is mounted on the axis of the centrifugal impeller 13. The centrifugal impeller 13 is driven by the drive motor 12 and air is drawn through the fan casing 11.

[0024] The structure of the fan casing 11 described above can guide airflow and achieve static pressure noise reduction; the heat pump component 3 is used to drive the refrigerant to circulate continuously, thereby transferring heat from the air to the heat exchange tank 200.

[0025] In a preferred embodiment, the protective cover 6 is arranged along the outer periphery of the fixed frame 5. The protective cover 6 includes a fan fixing plate and a top cover 66 located on the top of the fixed frame 5. The fan volute 11 includes a rear cover plate and an annular wall along the shape of the rear cover plate. An air inlet is opened on the rear cover plate. The rear cover plate, the annular wall, and the fan fixing plate together form the air outlet 10 located on the top of the fan volute 11. The top cover 66 has a through hole matching the air outlet 10 and is installed on the top surface of the fixed frame 5. One end of the drive motor 12 is fixedly connected to the rear cover plate, and the other end is connected to the fan fixing plate.

[0026] In this embodiment, the heat pump unit 100 absorbs heat from the air through its own heat pump heating system and transfers it to the hot water tank 200. It can be installed alone in the air conditioner location or combined with the water tank and installed in places such as living balconies and kitchen balconies. The heat pump unit 100 has no air outlet 10 on the front, which effectively avoids the air blowing directly at people when it is installed in areas with people such as balconies. The upper left side of the unit is designed with an air outlet 10 for exhausting cold air. At the same time, the cold air recovery and reuse function can be expanded by using the air outlet 10. As long as an air duct is added above the air outlet 10 to introduce air into the room, the cold air generated during heating can be reused.

[0027] More preferably, a partition plate erected on the chassis 4 is provided between the fan casing 11 and the heat pump assembly 3. One side of the partition plate is fixed to the evaporator heat exchanger 2, and the other side of the partition plate is fixed to one end of the fan mounting plate. A space is left between the top of the partition plate and the top cover 66. The fan mounting plate has a motor through-hole. The fan mounting plate is fixedly installed at the front end of the partition plate and the fixed frame 5. Multiple vertical ribs 600 are also provided on the outer side of the fan mounting plate.

[0028] The rib design of the fan mounting plate 600 can improve rigidity and suppress resonance; the alignment of the fan casing 11 and the centrifugal impeller 13 shafts can reduce airflow turbulence and aerodynamic noise; and the baffle buffer structure can isolate the heat pump assembly 3 from the fan vibration and prevent it from being transmitted to the casing; the overall noise of the three is better than that of the traditional structure.

[0029] In a preferred embodiment of this example, the protective cover 6 further includes a front panel 61, a left side panel 62, a right upright panel 63, and a right side panel 64; the front panel 61 has a structure with a central plane and both sides bent inward, and is located on the outer side of the fan fixing plate and fixedly installed at the front end of the fixing frame 5; the left side panel 62 is located on the left side of the fixing frame 5;

[0030] The right upright plate 63 and the right side plate 64 form a natural groove, allowing the refrigerant interface panel 7 to be embedded and fixed on both sides without screws. Maintenance can be performed by simply pulling it out laterally. The inward bending structure on both sides hides the fixing screws inside the bends, resulting in a clean appearance and preventing accidental contact, while also supporting tool-less disassembly.

[0031] More preferably, the right upright plate 63 is located at the right end of the front panel 61, and the right side plate 64 is a bent plate that stands upright at the right rear end of the fixed frame 5. The rear end of the right side plate 64 and the outer facade of the evaporator heat exchanger 2 form the rear end of the fixed frame 5. The right end of the right side plate 64 and the right upright plate 63 are engaged with the two sides of the refrigerant interface panel 7 located at the right end of the chassis 4.

[0032] The front panel 61, left side panel 62, right vertical panel 63, right side panel 64 and the outer facade of the evaporative heat exchanger 2 form a continuous closed surface, completely preventing rainwater from seeping in; combined with the bending angle of the front panel 61, rainwater is guided to flow along both sides to the water baffle 40 of the chassis 4, avoiding water accumulation and corrosion of the screw holes.

[0033] In a preferred embodiment of this invention, a rainproof plate 65 is also provided at the right end of the fixed frame 5, which surrounds the right end of the right upright plate 63, the right side plate 64 and the fluorine circuit interface panel 7. The rainproof plate 65 also has a main unit handle 650.

[0034] More preferably, the bottom of the fixed frame 5 is provided with water-blocking strips 40 around its perimeter, and the water-blocking strips 40 are fixed to the chassis 4.

[0035] In a preferred embodiment of this invention, a water heater includes a high-volume, high-static-pressure heat pump unit 100 and a water exchange tank 200. The heat pump unit 100 is connected to the water exchange tank 200 via a refrigerant line. The fan assembly 1 drives air to flow into the evaporator heat exchanger 2. After the evaporator heat exchanger 2 absorbs heat from the air, the heat pump assembly 3 drives the refrigerant to circulate continuously, transferring the heat from the air to the water exchange tank 200 via the refrigerant line.

[0036] The heat pump heating system of the heat pump unit 100 absorbs heat from the air and transfers it to the heat exchange tank 200, as shown in the reference. Figure 4 It adopts a split installation method, which can be installed separately in the air conditioner location, or refer to Figure 3 The heat pump unit 100 and the hot water tank 200 are installed as a single unit in a location such as a living balcony or kitchen balcony. The heat pump unit 100 has no air outlet 10 on the front, which effectively avoids the air blowing directly at people when installed in a populated area such as a balcony. The upper left side of the unit has an air outlet 10 for exhausting cold air. The left side has a handle 650 for carrying the unit, and the right side has a drain outlet 8, a refrigerant inlet 71, a refrigerant outlet 72, and a rainproof plate 65. The refrigerant inlet 71 and the refrigerant outlet 72 are located on the refrigerant interface panel 7. The refrigerant inlet and outlet of the hot water tank 200 are connected to the refrigerant inlet and outlet of the heat pump unit 100 through matching refrigerant connecting pipes.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-volume, high-static-pressure heat pump unit, characterized in that: The device includes a fan assembly, an evaporative heat exchanger, a heat pump assembly, a chassis, and a fixed frame mounted on the chassis. The evaporative heat exchanger and the fan assembly are arranged side-by-side within the fixed frame and erected on the chassis. The heat pump assembly is located on one side where the evaporative heat exchanger and the fan assembly are arranged side-by-side. The fan assembly includes a centrifugal impeller and a fan casing with an air outlet at the top. The centrifugal impeller is placed in the fan casing, and the axis of the centrifugal impeller coincides with the axis of the fan casing. A drive motor is mounted on the axis of the centrifugal impeller, and the centrifugal impeller is driven by the drive motor and draws air through the fan casing.

2. The high-volume, high-static-pressure heat pump unit according to claim 1, characterized in that: It also includes a protective cover arranged along the outer periphery of the fixed frame. The protective cover includes a fan mounting plate and a top cover located on the top of the fixed frame. The fan casing includes a rear cover plate and an annular wall along the shape of the rear cover plate. An air inlet is opened on the rear cover plate. The rear cover plate, the annular wall, and the fan mounting plate together form the air outlet located at the top of the fan casing. The top cover has a through hole matching the air outlet and is installed on the top surface of the fixed frame. One end of the drive motor is fixedly connected to the rear cover plate, and the other end is connected to the fan mounting plate.

3. The high-volume, high-static-pressure heat pump unit according to claim 2, characterized in that: A partition plate is provided between the fan casing and the heat pump assembly, which is erected on the chassis. One side of the partition plate is fixed to the evaporator heat exchanger, and the other side of the partition plate is fixed to one end of the fan mounting plate. A space is left between the top of the partition plate and the top cover. The fan mounting plate has a motor mounting hole. The fan mounting plate is fixedly installed at the front end of the partition plate and the fixed frame. Multiple vertical ribs are also provided on the outer side of the fan mounting plate.

4. The high-volume, high-static-pressure heat pump unit according to claim 2, characterized in that: The protective cover also includes a front panel, a left side panel, a right vertical panel, and a right side panel; the front panel has a central flat surface and two sides bent inward, and is located on the outer side of the fan fixing plate and fixedly installed at the front end of the fixing frame; The left side plate is located on the left side of the fixed frame; The right upright plate is located at the right end of the front panel. The right side plate is a bent plate that stands upright at the right rear end of the fixed frame. The rear end of the right side plate and the outer facade of the evaporator heat exchanger form the rear end of the fixed frame. The right end of the right side plate and the right upright plate are engaged with both sides of the refrigerant interface panel located at the right end of the chassis.

5. The high-volume, high-static-pressure heat pump unit according to claim 4, characterized in that: It also includes a rainproof plate, which is located at the right end of the fixed frame and surrounds the right upright plate, the right side plate and the fluorine circuit interface panel. The rainproof plate also has a main unit handle.

6. The high-volume, high-static-pressure heat pump unit according to claim 1, characterized in that: Water-blocking strips are provided around the bottom of the fixed frame, and the water-blocking strips are fixed to the chassis.

7. A water heater, characterized in that: The device includes a high-volume, high-static-pressure heat pump unit as described in any one of claims 1-6, and a heat exchange tank. The heat pump unit is connected to the heat exchange tank via a refrigerant connection pipe. The fan assembly drives air to flow into the evaporator heat exchanger. After absorbing heat from the air through the evaporator heat exchanger, the heat pump assembly drives the refrigerant to circulate continuously, transferring the heat from the air to the heat exchange tank via the refrigerant connection pipe.

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