Water pan and heat pump water heater

Abstract

The utility model relates to the technical field of hot water supply equipment, and discloses a water pan and a heat pump water heater. Wherein the water pan comprises a pan body, the pan body is provided with a drainage hole and a drainage groove communicated with the drainage hole, the drainage groove comprises an evaporator drainage groove, a fan drainage groove and a pipeline drainage groove, and the drainage hole is located at the intersection of the evaporator drainage groove, the fan drainage groove and the pipeline drainage groove. According to the heat-pump water heater, the evaporator drainage groove, the fan drainage groove and the pipeline drainage groove are formed in the tray body, condensate water generated in the operation process of the evaporator, the fan and the pipeline can be collected, and the situation that the condensate water flows disorderly in the heat-pump water heater is reduced. Furthermore, the drainage holes are formed in the intersection of the three drainage grooves, so that condensate water in the three drainage grooves can be converged and drained at the same place, the phenomenon that the condensate water is accumulated in the drainage grooves is avoided, and the use safety of the heat pump water heater is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of hot water supply equipment, and in particular to a water receiving tray and a heat pump water heater. Background Technology

[0002] A heat pump water heater is a device that can provide domestic hot water. It mainly consists of core components such as a compressor, condenser, fan, evaporator, and electrical control system. During operation, the evaporator exchanges heat with the external environment, causing the surrounding air temperature to drop. The continuous operation of the fan accelerates airflow. When the air containing water vapor comes into contact with the cooler evaporator surface, the water vapor condenses, forming condensate. In reality, during operation, condensate is produced not only by the evaporator contacting the air, but also by some air contacting the refrigerant inlet pipes of the fan and compressor. However, existing heat pump water heaters typically only have an evaporator drain pan on the drip tray. When condensate is produced by the fan and compressor refrigerant inlet pipes, this condensate can easily spread to the electrical control system, potentially causing safety hazards. Utility Model Content

[0003] The first technical problem solved by this utility model is to provide a water receiving tray, which effectively solves the problem that condensate generated by the fan and other equipment in existing heat pump water heaters can easily spread to the electrical control system during operation, thus causing the electrical control system to malfunction.

[0004] The second technical problem solved by this utility model is to provide a heat pump water heater that effectively solves the problem that condensate generated by the fan and other equipment in existing heat pump water heaters can easily diffuse to the electrical control system, causing the electrical control system to malfunction.

[0005] The first technical problem mentioned above is solved by the following technical solution:

[0006] A water receiving tray for a heat pump water heater includes a tray body with a drain hole and a drain groove connected to the drain hole. The drain groove includes an evaporator drain groove, a fan drain groove, and a pipe drain groove. The drain hole is located at the intersection of the evaporator drain groove, the fan drain groove, and the pipe drain groove.

[0007] Compared with the prior art, the water receiving tray of this utility model has the following advantages:

[0008] This invention, by incorporating evaporator drain channels, fan drain channels, and pipe drain channels on the tray, allows for the separate collection of condensate generated by the evaporator, fan, and pipes during heat pump operation. This reduces the disorderly flow of condensate within the tray, preventing it from spreading to the electrical control system and improving the stability and safety of the heat pump water heater. Furthermore, placing the drain hole at the intersection of these three channels guides the collected condensate towards a single point for drainage. Compared to having a drain hole in each individual channel, this design reduces the number of drain pipes required, simplifying the tray's structural layout.

[0009] In one embodiment, both the pipeline drainage trough and the fan drainage trough are connected to the evaporator drainage trough, and the depth of the evaporator drainage trough is greater than the depth of the pipeline drainage trough and the depth of the fan drainage trough, respectively.

[0010] In one embodiment, a step is formed at the connection between the fan drain and the evaporator drain.

[0011] In one embodiment, the disc body is provided with a baffle and an annular flange. The baffle is located at the junction of the evaporator drain groove and the pipeline drain groove, and the annular flange surrounds the periphery of the disc body. Along the extending direction of the baffle, there is a gap between the baffle and the annular flange, and the evaporator drain groove is connected to the pipeline drain groove through the gap.

[0012] In one embodiment, the pipe drain trough, the evaporator drain trough, and the fan drain trough are arranged in sequence along the radial direction of the disc body, and the drain hole is located inside the evaporator drain trough and penetrates the bottom surface of the evaporator drain trough.

[0013] In one embodiment, the bottom surface of the evaporator drain groove includes a first bottom surface and a second bottom surface connected to the first bottom surface, and the drain hole is provided at the connection between the two. The first bottom surface and the second bottom surface are arranged sequentially along the width direction of the evaporator drain groove and are inclined toward the direction of the drain hole.

[0014] In one embodiment, the inclination angle of the first bottom surface and the second bottom surface near the drain hole is greater than the inclination angle of the two surfaces away from the drain hole.

[0015] In one embodiment, the drain hole is located on the bottom surface of the evaporator drain groove near the edge of the plate, and the bottom surface of the evaporator drain groove is inclined toward the direction of the drain hole.

[0016] In one embodiment, the bottom surfaces of the evaporator drain trough, the pipeline drain trough, and the fan drain trough are all inclined from top to bottom toward the direction of the drain hole.

[0017] The second technical problem mentioned above is solved by the following technical solution:

[0018] A heat pump water heater, comprising:

[0019] Host;

[0020] The aforementioned water receiving tray has the main unit located on the upper surface of the tray body;

[0021] A water tank is located on the lower surface of the plate.

[0022] Compared with the prior art, the heat pump water heater described in this utility model has the following beneficial effects:

[0023] Compared to existing heat pump water heaters, this installed drain pan allows for faster condensate drainage, reducing the likelihood of safety accidents. This invention, by incorporating evaporator drain, fan drain, and pipe drain on the pan, collects condensate generated during operation from the evaporator, fan, and pipes respectively. This reduces disordered condensate flow within the pan, preventing it from spreading to the electrical control system and improving the stability and safety of the heat pump water heater. Furthermore, placing the drain hole at the intersection of these three drains guides the collected condensate towards a single point for drainage. Compared to having drain holes in each drain, placing the drain hole at the intersection reduces the number of drain pipes, simplifying the pan's structural layout. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a water receiving tray according to an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 The diagram shows a partial structural schematic of the water receiving tray.

[0027] Figure 3 for Figure 2A schematic diagram of the cross-sectional structure from the perspective of angle AA;

[0028] Figure 4 for Figure 3 A magnified view of part B in the middle section;

[0029] Figure 5 for Figure 1 A schematic diagram of the water receiving tray from another perspective;

[0030] Figure 6 for Figure 5 A schematic diagram of the cross-sectional structure from a CC perspective;

[0031] Figure 7 This is a partial structural schematic diagram of a heat pump water heater according to an embodiment of the present utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Plate; 101. Drain hole; 102. Evaporator drain groove; 1021. First bottom surface; 1022. Second bottom surface; 103. Fan drain groove; 104. Pipe drain groove; 105. Step; 106. Annular flange; 107. Upper surface; 108. Lower surface; 2. Baffle; 3. Gap; 4. Water tank. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] The terms "first" and "second" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In response to the problem that condensate generated by the fan and other equipment in existing heat pump water heaters can easily spread to the electrical control system and cause malfunctions, this utility model provides a water collection tray and a heat pump water heater.

[0039] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0040] According to embodiments of the present invention, on the one hand, such as Figures 1 to 6 As shown, a water receiving tray is provided for a heat pump water heater, including a tray body 1. The upper surface 107 of the tray body 1 is provided with a drain hole 101 and a drain groove connected to the drain hole 101. The drain groove includes an evaporator drain groove 102, a fan drain groove 103 and a pipe drain groove 104. The drain hole 101 is located at the intersection of the evaporator drain groove 102, the fan drain groove 103 and the pipe drain groove 104.

[0041] It should be noted that during the operation of a heat pump water heater, condensation typically forms around the evaporator, fan, evaporator inlet pipe, and compressor return pipe inside the heat pump water heater. Therefore, heat pump water heaters are generally equipped with a drip tray to collect this condensation, preventing it from flowing freely within the water heater and reducing the risk of short circuits or component corrosion caused by uncontrolled condensation flow. Furthermore, to ensure complete collection of condensation, the drip tray is usually positioned directly below the condensation-generating equipment. However, while the drip tray effectively collects condensation, over time, the condensation accumulates, reducing the distance between the water level in the tray and electrical equipment above it, such as the fan, potentially leading to electrical safety hazards.

[0042] Based on this, this embodiment, by setting an evaporator drain trough 102, a fan drain trough 103, and a pipe drain trough 104 on the plate 1, can collect the condensate generated by the evaporator, fan, and pipes respectively during the operation of the heat pump. This reduces the disorderly flow of condensate within the plate 1, making it less likely for condensate to diffuse to the location of the electrical control system, thus improving the stability and safety of the heat pump water heater operation. Simultaneously, placing the drain hole 101 at the intersection of the three drains allows the condensate collected in the three drain troughs to converge and drain in the same direction under the guidance of the corresponding drain troughs. Compared to setting a drain hole 101 in each drain trough, placing the drain hole 101 at the intersection of the three reduces the number of drain pipes, thereby simplifying the structural layout of the water collection tray.

[0043] In one embodiment, such as Figures 1 to 6 As shown, the pipe drain trough 104 and the fan drain trough 103 are both connected to the evaporator drain trough 102. The depth of the evaporator drain trough 102 is greater than the depth of the pipe drain trough 104 and the depth of the fan drain trough 103, respectively.

[0044] It should be noted that compared to the evaporator, the fan, evaporator inlet pipe, and compressor return pipe produce relatively less condensate during the operation of the heat pump water heater. This means that condensate is more likely to accumulate in the evaporator drain 102 within the same timeframe. Therefore, making the evaporator drain 102 relatively deep increases its temporary water storage capacity, preventing condensate from overflowing directly into the drain 102 because the drainage rate of the drain hole 101 is less than the condensate generation rate. The relatively shallow fan drain 103 not only matches the characteristic of the fan producing a small amount of condensate but also reduces the space required for installation. Similarly, making the pipe drain 104 relatively shallow has a similar effect, which will not be elaborated further here.

[0045] In one embodiment, such as Figure 3 and Figure 4 As shown, a step 105 is formed at the connection between the fan drain 103 and the evaporator drain 102. By setting the step 105 at the connection between the fan drain 103 and the evaporator drain 102, on the one hand, the condensate in the fan drain 103 can flow smoothly into the evaporator drain 102 and then be discharged through the drain hole 101 located on the bottom surface of the evaporator drain 102; on the other hand, it can prevent the condensate in the evaporator drain 102 from flowing back into the fan drain 103, ensuring that the fan and its surrounding components are not affected by the condensate.

[0046] In one embodiment, such as Figure 5As shown, the plate body 1 is provided with a baffle 2 and an annular flange 106. The baffle 2 is located at the junction of the evaporator drain trough 102 and the pipe drain trough 104. The annular flange 106 surrounds the periphery of the plate body 1. Along the extension direction of the baffle 2, a gap 3 is left between the baffle 2 and the annular flange 106. The evaporator drain trough 102 is connected to the pipe drain trough 104 through the gap 3.

[0047] Because there is a gap between the evaporator and the upper surface 107 of the plate 1 when the evaporator is assembled, some of the airflow will flow through the gap between the evaporator and the upper surface 107 of the plate 1 when the fan blows air towards the evaporator, thus preventing the evaporator from exchanging heat with all the airflow. Therefore, this embodiment uses a baffle 2 on the plate 1 to concentrate the airflow from the fan as much as possible in the main heat exchange area of ​​the evaporator, allowing the evaporator to exchange heat fully and efficiently with more airflow, thereby improving the heat exchange efficiency of the evaporator. Furthermore, placing the baffle 2 at the junction of the evaporator drain trough 102 and the pipe drain trough 104 optimizes the structural layout of the upper surface 107 of the plate 1 and avoids the baffle 2 occupying the installation space of other structures on the plate 1. Secondly, the gap 3 between the baffle 2 and the annular flange 106 allows the condensate in the pipe drain trough 104 to flow smoothly into the evaporator drain trough 102 and be discharged smoothly through the drain hole 101 to the outside of the heat pump water heater.

[0048] In one embodiment, such as Figures 1 to 4 As shown, the pipe drain trough 104, evaporator drain trough 102, and fan drain trough 103 are arranged radially along the plate body 1. The drain hole 101 is located inside the evaporator drain trough 102 and penetrates the bottom surface of the evaporator drain trough 102. It should be noted that during the operation of a heat pump water heater, the evaporator needs to exchange heat with the external environment, such as air, to obtain heat for subsequent heating of hot water. To ensure that the evaporator can absorb sufficient heat from the air, it is necessary to ensure that all parts of the evaporator are in uniform contact with the airflow, so that the evaporator has a high heat exchange efficiency. Based on this, placing the fan, which provides airflow in the heat pump water heater, alongside the evaporator allows all parts of the evaporator to be in uniform contact with the airflow, improving heat exchange efficiency. Therefore, in this embodiment, the pipe drain trough 104, the evaporator drain trough 102 and the fan drain trough 103 are arranged in sequence along the radial direction of the plate body 1. This not only adapts to the layout adopted by the evaporator and the fan, but also facilitates the accurate collection of condensate generated by the pipe, evaporator and fan.

[0049] In one embodiment, such as Figures 1 to 6As shown, the bottom surface of the evaporator drain tank 102 includes a first bottom surface 1021 and a second bottom surface 1022 connected to the first bottom surface 1021. A drain hole 101 is located at the connection between the two surfaces. The first bottom surface 1021 and the second bottom surface 1022 are arranged sequentially along the width direction of the evaporator drain tank 102 and are inclined towards the direction of the drain hole 101. This arrangement allows condensate to flow smoothly and quickly along the first bottom surface 1021 and the second bottom surface 1022 to the drain hole 101 under the action of gravity, thereby reducing the residence time and accumulation time of condensate in the corresponding drain tank and improving drainage efficiency.

[0050] In one embodiment, such as Figures 3 to 6 As shown, the inclination angle of the first bottom surface 1021 and the second bottom surface 1022 near the drain hole 101 is greater than their inclination angle away from the drain hole 101. Using a larger inclination angle near the drain hole 101 accelerates the flow of condensate to the drain hole 101, shortens the drainage time, and reduces the likelihood of condensate accumulation in the drain tank. Using a smaller inclination angle away from the drain hole 101 allows the evaporator drain tank 102 to have a relatively large opening, increasing its temporary water storage capacity.

[0051] For example, the tilt angle near the drain hole 101 is 2° to 3°; the tilt angle away from the drain hole 101 is 1.5° to 2.5°.

[0052] In one embodiment, the drain hole 101 is located on the bottom surface of the evaporator drain tank 102 near the edge of the plate 1, and the bottom surface of the evaporator drain tank 102 is inclined toward the direction of the drain hole 101. This arrangement allows condensate to quickly collect toward the drain hole 101 under gravity, reducing the amount of condensate remaining in the evaporator drain tank 102.

[0053] In one embodiment, the bottom surfaces of the evaporator drain trough 102, the pipe drain trough 104, and the fan drain trough 103 are all inclined from top to bottom toward the drain hole 101. By tilting the bottom surfaces of the three drain troughs, the condensate in the drain troughs flows naturally and smoothly toward the drain hole 101 under the influence of gravity. This improves the drainage speed and efficiency of the condensate and effectively prevents the accumulation of condensate inside the heat pump water heater.

[0054] According to an embodiment of the present invention, on the other hand, as... Figure 7 As shown, a heat pump water heater is also provided, including: a main unit, the aforementioned water receiving tray, and a water tank 4. Specifically, the main unit is located on the upper surface 107 of the tray 1; water is located on the lower surface 108 of the tray 1.

[0055] The heat pump water heater equipped with this drip tray can quickly drain condensate compared to existing heat pump water heaters, reducing the possibility of safety accidents. This embodiment, by setting an evaporator drain trough 102, a fan drain trough 103, and a pipe drain trough 104 on the tray body 1, can collect condensate generated by the evaporator, fan, and pipes respectively during heat pump operation. This reduces the disorderly flow of condensate within the tray body 1, making it less likely for condensate to diffuse to the location of the electrical control system, thus improving the stability and safety of the heat pump water heater's operation. Simultaneously, placing the drain hole 101 at the intersection of the three drains allows the condensate collected in the three drain troughs to converge and drain in the same direction under the guidance of the corresponding drain troughs. Compared to setting a drain hole 101 in each drain trough, placing the drain hole 101 at the intersection of the three reduces the number of drain pipes, thereby simplifying the structural layout of the drip tray.

[0056] It should be noted that the host in this embodiment contains, but is not limited to, core components such as a compressor, condenser, fan, evaporator, and electronic control system.

[0057] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0058] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A water receiving tray for a heat pump water heater, characterized in that: The device includes a plate (1), on which a drain hole (101) and a drain trough connected to the drain hole (101) are provided. The drain trough includes an evaporator drain trough (102), a fan drain trough (103), and a pipeline drain trough (104). The drain hole (101) is located at the intersection of the evaporator drain trough (102), the fan drain trough (103), and the pipeline drain trough (104).

2. The water receiving tray according to claim 1, characterized in that: The pipeline drainage trough (104) and the fan drainage trough (103) are both connected to the evaporator drainage trough (102). The depth of the evaporator drainage trough (102) is greater than the depth of the pipeline drainage trough (104) and the depth of the fan drainage trough (103).

3. The water receiving tray according to claim 2, characterized in that: A step (105) is formed at the connection between the fan drain trough (103) and the evaporator drain trough (102).

4. The water receiving tray according to claim 2, characterized in that: The disc body (1) is provided with a baffle (2) and an annular flange (106). The baffle (2) is located at the junction of the evaporator drain groove (102) and the pipeline drain groove (104). The annular flange (106) surrounds the periphery of the disc body (1). Along the extension direction of the baffle (2), there is a gap (3) between the baffle (2) and the annular flange (106). The evaporator drain groove (102) is connected to the pipeline drain groove (104) through the gap (3).

5. The water receiving tray according to claim 2, characterized in that: The pipeline drain trough (104), the evaporator drain trough (102), and the fan drain trough (103) are arranged in sequence along the radial direction of the plate (1). The drain hole (101) is located inside the evaporator drain trough (102) and penetrates the bottom surface of the evaporator drain trough (102).

6. The water receiving tray according to claim 5, characterized in that: The bottom surface of the evaporator drain trough (102) includes a first bottom surface (1021) and a second bottom surface (1022) connected to the first bottom surface (1021). The drain hole (101) is located at the connection between the two. The first bottom surface (1021) and the second bottom surface (1022) are arranged sequentially along the width direction of the evaporator drain trough (102) and are inclined toward the direction of the drain hole (101).

7. The water receiving tray according to claim 6, characterized in that: The inclination angle of the first bottom surface (1021) and the second bottom surface (1022) near the drain hole (101) is greater than the inclination angle of the two surfaces away from the drain hole (101).

8. The water receiving tray according to claim 5, characterized in that: The drain hole (101) is located on the bottom surface of the evaporator drain trough (102) near the edge of the plate (1), and the bottom surface of the evaporator drain trough (102) is inclined toward the direction of the drain hole (101).

9. The water receiving tray according to any one of claims 1 to 8, characterized in that: The bottom surfaces of the evaporator drain trough (102), the pipeline drain trough (104), and the fan drain trough (103) are all inclined from top to bottom toward the direction of the drain hole (101).

10. A heat pump water heater, characterized in that: include: Host; The water receiving tray according to any one of claims 1 to 9, wherein the main unit is disposed on the upper surface (107) of the tray body (1); A water tank (4) is provided on the lower surface (108) of the plate body (1).

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