Integral horizontal heat pump water heater

By designing a drip tray in the heat pump water heater to collect and drain condensate, the problem of condensate corrosion is solved, improving the stability and lifespan of the water heater while maintaining high energy efficiency and low cost.

CN223726585UActive Publication Date: 2025-12-26RICHU DONGFANG SOLAR ENERGY +1
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Patent Information

Application Number
CN202423249628.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-26
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing wall-mounted horizontal heat pump water heaters are prone to condensation in high humidity environments, causing condensation to leak out from gaps, affecting user experience and corroding the unit, and it is difficult to effectively drain the condensate.

Method used

An integrated horizontal heat pump water heater was designed. It uses a water collection tray to collect condensate and drains it to the outside through a drain hole and a drain pipe. It combines a finned heat exchanger and an axial flow fixed frequency fan to improve heat exchange efficiency. The water collection tray is made of galvanized sheet and sprayed with an anti-corrosion coating to extend its service life.

Benefits of technology

It achieves effective condensate drainage, improves the structural stability and service life of the water heater, while maintaining high energy efficiency and low cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integral horizontal heat pump water heater which comprises a shell and an inner container, and the side wall of the inner container is connected with an installation base plate. A water pan is further arranged in the shell, and the heat exchanger and the water heater pipeline are located above the water pan. The compressor is installed on a supporting plate, one side of the supporting plate is fixedly connected with the installation chassis, the other side of the supporting plate extends to the position above the water pan, and the bottom of the supporting plate is connected with the water pan. The water pan is located at one end below the supporting plate, one side of the water pan is fixedly connected with the side of the supporting plate through a kidney-shaped hole, the other side of the water pan is fixedly connected with the mounting base plate, the other end of the water pan is fixedly connected with one side of the heat exchanger through a kidney-shaped hole, and the other side of the heat exchanger is fixedly connected with the mounting base plate. A drain hole is formed in the bottom of the water pan and connected with a drain pipe communicated with the outside. By optimizing the internal structure of the heat pump type water heater, on the basis that the basic performance advantages of the heat pump type water heater are achieved, condensate water is convenient to discharge, and the service life of the heat pump type water heater can be prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a whole type horizontal heat pump water heater belongs to heat pump water heater technical field. BACKGROUND

[0002] The two kinds of water heaters commonly appearing in the current household water heater market are gas water heater and electric water heater. The gas water heater produces carbon dioxide and other greenhouse gas emissions in the working process. The electric power used by the electric water heater comes from fossil energy power generation such as coal, which still indirectly leads to carbon emissions.

[0003] With the global emphasis on energy saving and emission reduction and sustainable development, heat pump water heaters are more and more favored in the market. Compared with fossil fuel equipment, heat pump water heaters produce less greenhouse gas in the operation process. In the process of finding more efficient heating methods, heat pump water heaters can use less energy to move heat, rather than directly generate heat, so the energy efficiency is higher than that of traditional electric water heaters and gas water heaters. Residential and commercial buildings are gradually adopting this technology to reduce energy consumption and environmental impact.

[0004] In the process of heat pump unit operation, the refrigerant in the heat exchanger will absorb the heat in the air, causing the ambient temperature to drop during operation, and thus causing the heat exchanger and copper pipe parts to easily produce condensate. Especially for wall-mounted horizontal heat pump water heaters, the use place is usually a high-humidity bathroom environment, and the water vapor in the air is more likely to reach saturation state, and thus form condensate. If the condensate produced during operation cannot be discharged in time, the condensate produced will not only flow out from the gap of the unit, affecting the user's experience; Even flow into the unit, cause corrosion to the water tank liner, affect the use of the unit, and even cause the unit to be scrapped. SUMMARY

[0005] The utility model aims at providing a whole type horizontal heat pump water heater, which realizes high energy efficiency, high safety and low cost, and through optimization of the internal structure, facilitates condensate discharge and prolongs the service life of the heat pump water heater.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of a whole type horizontal heat pump water heater, which comprises an outer shell and an inner tank arranged in the outer shell, the inner tank is fixedly connected with a mounting bottom plate on the side wall, a compressor and a heat exchanger are mounted on the mounting bottom plate.

[0007] A water collecting tray is further arranged in the shell, and the heat exchanger and the water heater pipeline are located above the water collecting tray; the compressor is mounted on a support plate, one side of the support plate is fixedly connected to the mounting base, and the other side extends above the water collecting tray, and the bottom of the support plate is connected to the water collecting tray; one side of the water collecting tray at one end below the support plate is fixedly connected to the side of the support plate through a waist-shaped hole, and the other side is fixedly connected to the mounting base, and the other end of the water collecting tray is fixedly connected to one side of the heat exchanger through a waist-shaped hole.

[0008] The bottom of the water collecting tray is provided with a drain hole, and a drain pipe connected to the outside is connected to the drain hole.

[0009] Optionally, the water collecting tray comprises a horizontal part and first and second inclined parts extending obliquely upwards from both ends of the horizontal part; the outer end of the first inclined part is abutted to the mounting base on one side and fixedly connected to one side of the heat exchanger through a waist-shaped hole and a bolt on the other side, and the other side of the heat exchanger is fixedly connected to the mounting base; and the outer end of the second inclined part is connected to the mounting base and the support plate on both sides.

[0010] Optionally, one side of the outer end of the first inclined part of the water collecting tray is fixedly connected to the side of the heat exchanger through a vertical waist-shaped hole and a bolt, and one side of the outer end of the second inclined part of the water collecting tray is connected to the side of the support plate through a horizontal waist-shaped hole and a bolt. The cooperation of the two end horizontal waist-shaped holes and the vertical waist-shaped hole can ensure the assembly accuracy of the water collecting tray in two directions.

[0011] Optionally, the heat exchanger adopts a finned heat exchanger, and a plurality of axial flow constant frequency fans are mounted on one side of the finned heat exchanger, the ventilation surfaces of the plurality of axial flow constant frequency fans are sequentially connected, and all face the finned heat exchanger, so as to improve the heat exchange efficiency of the heat exchanger.

[0012] Optionally, the water collecting tray is integrally made of a 2mm thick galvanized sheet, and a corrosion-resistant coating is sprayed on the surface of the water collecting tray, so that the water collecting tray has good structural strength and a long service life.

[0013] Optionally, thermal insulation cotton is attached to the bottom surface of the water collecting tray, so as to prevent condensate water from accumulating on the surface of the water collecting tray, the surface temperature of the water collecting tray from being reduced, and a large temperature difference from the outside from being generated, so that condensate water is generated at the bottom.

[0014] Optionally, the drain hole of the water collecting tray is connected to the drain pipe through a hole peripheral flange, and the end of the drain pipe is in a pagoda shape. The flange hole can be conveniently welded and positioned with the drain pipe, and full welding connection between the two can ensure the relative sealing of the inside and outside of the connection. The pagoda-shaped structure of the head of the drain pipe can facilitate the connection with the drain hose.

[0015] Optionally, the support plate edge comprises an upwardly bent side wall, which is provided with an opening on the side of the support plate facing the water pan. This design does not change the horizontal arrangement of the support plate, and enables the condensed water flowing down the compressor to flow back to the water pan on the basis of meeting the mounting and supporting effect of the support plate on the compressor.

[0016] Optionally, a buffer pad is arranged on the compressor placing surface of the support plate, for buffering the vibration during the operation of the compressor, and improving the stability of the connection between the support plate and the water pan, the mounting base plate and other internal structures of the water heater.

[0017] Compared with the prior art, the utility model has the beneficial effects that: by arranging the water pan and designing the position and connection mode between the water pan and other structures in the inner container, the original performance of the heat pump water heater is not affected, the overall structural stability is ensured, the condensed water in the water heater can be collected by the water pan and conveniently drained to the outside, and the service life of the heat pump water heater is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 shows a schematic diagram of a whole type horizontal heat pump water heater according to the utility model;

[0019] Figure 2 Fig. 2 shows a schematic diagram of the internal structure of the whole type horizontal heat pump water heater according to the utility model;

[0020] Figure 3 Fig. 3 shows a schematic diagram of the water pan structure according to the utility model; Figure 4 Fig. 4 shows another schematic diagram of the water pan structure according to the utility model;

[0021] In the figure: 1 - mounting base plate, 2 - compressor, 3 - heat exchanger, 4 - axial flow fan, 5 - water pan, 51 - drain hole, 52 - drain pipe, 53 - transverse waist-shaped hole, 54 - base plate mounting hole, 55 - vertical waist-shaped hole, 56 - horizontal part, 57 - first inclined part, 58 - second inclined part, 6 - support plate, 61 - support plate side wall, 7 - pipeline, 8 - inner container, 9 - micro-channel heat exchanger, 10 - water outlet pipe, 11 - water inlet pipe, 12 - shell, 13 - mounting rack, 14 - electrical box. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings.

[0023] Figure 1 Fig. 1 shows a schematic diagram of a whole type horizontal heat pump water heater according to the utility model; Figure 2 Fig. 1 shows a schematic diagram of a whole type horizontal heat pump water heater according to the utility model;

[0024] Specifically, in the embodiment, the integrated horizontal heat pump water heater comprises a shell 12 and an inner container 8 arranged in the shell. The inner container is connected with a water outlet pipe 10 and a water inlet pipe 11. A mounting base 1 is fixedly connected to the side wall of the inner container. A compressor 2 and a heat exchanger 3 are mounted on the mounting base. A drain hole 51 is arranged at the bottom of the water receiving tray. A drain pipe 52 connected to the outside is connected to the drain hole.

[0025] A water receiving tray 5 is further arranged in the shell. The heat exchanger and the water heater pipeline 7 are located above the water receiving tray. The compressor is mounted on a support plate 6. One side of the support plate is fixedly connected to the mounting base. The other side of the support plate extends above the water receiving tray. The bottom of the support plate is connected to the water receiving tray. The edge of the support plate comprises an upwardly bent side wall 61. The side wall is provided with an opening on the side of the support plate facing the water receiving tray. This design does not change the horizontal arrangement of the support plate. On the basis of meeting the mounting and supporting effect of the support plate on the compressor, the condensed water flowing down the compressor can be guided to the water receiving tray.

[0026] One end of the water receiving tray is located below the support plate. One side of the water receiving tray is fixedly connected to the side of the support plate through a waist-shaped hole. The other side of the water receiving tray is fixedly connected to the mounting base. The other end of the water receiving tray is fixedly connected to one side of the heat exchanger 3 through a vertical waist-shaped hole. The other side of the heat exchanger is fixedly connected to the mounting base. Preferably, the heat exchanger is a finned heat exchanger. The width of the first inclined part of the water receiving tray is adapted to the width of the heat exchanger, so that the heat exchanger is fixedly connected to the mounting base and the water receiving tray on both sides, respectively. The edge of the water receiving tray is provided with a side wall to prevent the condensed water falling into the water receiving tray from falling into the shell through a path other than the drain hole.

[0027] In combination with Figure 3 and Figure 4 In the embodiment, the water receiving tray comprises a horizontal part 56 and first and second inclined parts 57 and 58 extending obliquely upward from both ends of the horizontal part. The outer end of the first inclined part is abutted to the mounting base on one side and fixedly connected to one side of the heat exchanger through a vertical waist-shaped hole 55 and a bolt on the other side. The other side of the heat exchanger is fixedly connected to the mounting base. The outer end of the second inclined part is connected to the mounting base through a base mounting hole 54 on one side and connected to the side of the support plate through a transverse waist-shaped hole 53 and a bolt on the other side. The cooperation of the transverse waist-shaped hole and the vertical waist-shaped hole at both ends of the water receiving tray can ensure the assembly accuracy of the water receiving tray in two directions.

[0028] In order to ensure the structural strength, in the embodiment, the water receiving tray is made of a 2mm thick galvanized sheet, which can ensure that burrs are not generated during the forming process and is conducive to the flow and discharge of condensed water. The water receiving tray can be integrally processed or fully welded between different plate parts by carbon dioxide protective welding to ensure the sealing property and prevent condensed water from flowing out of the gap. The surface of the water receiving tray is sprayed with a corrosion-resistant coating to prolong the service life.

[0029] In order to prevent the condensate water from accumulating on the surface of the water pan, the temperature of the surface of the water pan is reduced, the temperature difference with the outside is large, so that the condensate water is generated at the bottom, and the heat preservation cotton is also attached on the bottom surface of the water pan.

[0030] In the embodiment, the drain hole of the water pan is connected with the drain pipe through the hole peripheral flanging, and the end of the drain pipe is in the shape of a pagoda. The flanged hole can be conveniently welded and positioned with the drain pipe, and the full welding connection between the two can also ensure the relative sealing of the inside and outside of the connection. The pagoda-shaped structure of the head of the drain pipe can facilitate the connection with the drain hose.

[0031] Further, in the embodiment, the compressor placement surface of the support plate is provided with a buffer pad for buffering the vibration during the operation of the compressor, and improving the stability of the connection of the support plate with the water heater internal structure such as the water pan, the mounting base plate and the like. The heat exchanger is a finned heat exchanger, one side of which is provided with a plurality of axial flow constant frequency fans, the ventilation surfaces of the plurality of axial flow constant frequency fans are sequentially connected, and all face the finned heat exchanger, which can improve the heat exchange efficiency of the heat exchanger. The inner container is further provided with a micro-channel heat exchanger 9.

[0032] The embodiments of the utility model are described above in combination with the drawings, but the utility model is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and the person skilled in the art can make many forms under the inspiration of the utility model without departing from the purpose of the utility model and the scope protected by the claims, and these all belong to the protection of the utility model.

Claims

1. An integrated horizontal heat pump water heater, comprising a shell and an inner container arranged in the shell, a mounting base fixedly connected to a side wall of the inner container, and a compressor and a heat exchanger mounted on the mounting base; characterized in that: a water pan is further arranged in the shell, the heat exchanger and water heater pipeline are located above the water pan, the compressor is mounted on a support plate, one side of the support plate is fixedly connected to the mounting base, the other side extends above the water pan, and the bottom of the support plate is connected to the water pan; one side of the water pan at one end below the support plate is fixedly connected to the side of the support plate through a waist-shaped hole, the other side is fixedly connected to the mounting base, the other end of the water pan is fixedly connected to one side of the heat exchanger through a waist-shaped hole, and the other side of the heat exchanger is fixedly connected to the mounting base; a drain hole is arranged at the bottom of the water pan, and a drain pipe connected to the outside is connected to the drain hole. The water pan comprises a horizontal part and first and second inclined parts extending obliquely upward from both ends of the horizontal part; one side of the outer end of the first inclined part abuts against the mounting base, the other side is fixedly connected to one side of the heat exchanger through a waist-shaped hole and a bolt, and the other side of the heat exchanger is fixedly connected to the mounting base; the outer ends of the second inclined part are connected to the mounting base and the support plate, respectively.

2. The integrated horizontal heat pump water heater of claim 1, wherein: One side of the outer end of the first inclined part of the water pan is fixedly connected to the side of the heat exchanger through a vertical waist-shaped hole and a bolt, and one side of the outer end of the second inclined part of the water pan is fixedly connected to the side of the support plate through a horizontal waist-shaped hole and a bolt.

3. The integrated horizontal heat pump water heater of claim 2, wherein: The water pan is integrally made of a 2mm-thick galvanized sheet, and a corrosion-resistant coating is sprayed on the surface of the water pan.

4. The integrated horizontal heat pump water heater of claim 1, wherein: Thermal insulation cotton is attached to the bottom surface of the water pan.

5. The integrated horizontal heat pump water heater of claim 1, wherein: The drain hole of the water pan is connected to the drain pipe through a hole peripheral flange, and the end of the drain pipe is in a pagoda shape.

6. The integrated horizontal heat pump water heater of claim 1, wherein: The edge of the support plate comprises an upwardly bent side wall, and the side wall is provided with an opening on the side of the support plate facing the water pan.

7. The integrated horizontal heat pump water heater of claim 1, wherein: A buffer pad is arranged on the compressor placement surface of the support plate.

8. The integrated horizontal heat pump water heater of claim 1, wherein: The heat exchanger is a finned heat exchanger, one side of which is mounted with a plurality of axial flow constant frequency fans, the ventilation surfaces of the plurality of axial flow constant frequency fans are sequentially connected, and all face the finned heat exchanger.

9. The integrated horizontal heat pump water heater of claim 1, wherein: ​