Heat pump water heater

Abstract

The application provides a heat pump water heater. The heat pump water heater comprises a water tank and a water receiving tray. The water tank comprises a shell, an end of the shell is provided with an opening, and an outer side wall of the shell close to the opening is provided with a limiting groove. An end of the water receiving tray is provided with an assembling groove, an inner side wall of the assembling groove is provided with a limiting protrusion, the end of the shell provided with the opening is inserted into the assembling groove, and the limiting protrusion is clamped into the limiting groove. According to the application, the limiting groove is arranged on the outer side wall of the shell close to the opening of the end of the water tank, the assembling groove is arranged on the end of the water receiving tray, and the limiting protrusion is arranged on the inner side wall of the assembling groove. Therefore, when assembling, the end of the shell provided with the opening is inserted into the assembling groove, and the limiting protrusion is clamped into the limiting groove. In this way, the connection between the shell and the water receiving tray can be realized, the assembling operation is simple, the shell and the water receiving tray do not need to be connected by screwing, and the assembling efficiency is improved.

Description

Technical Field

[0001] This application belongs to the field of water heater technology, and in particular relates to a heat pump water heater. Background Technology

[0002] In the existing technology, the water tank and water tray of a heat pump water heater are usually fixed by screws in multiple places. However, this assembly method is complicated and time-consuming, resulting in low assembly efficiency. Utility Model Content

[0003] This application provides a heat pump water heater to solve the problem of low assembly efficiency of the water tank and drip tray in existing heat pump water heaters.

[0004] The heat pump water heater provided in this application embodiment includes a water tank and a water receiving tray. The water tank includes a shell with an opening at one end and a limiting groove on the outer side wall of the shell near the opening. The water receiving tray has an assembly groove at one end and a limiting protrusion on the inner side wall of the assembly groove. The end of the shell with the opening is inserted into the assembly groove, and the limiting protrusion is engaged in the limiting groove.

[0005] Optionally, the limiting groove is an annular groove arranged circumferentially along the opening, and the limiting protrusion is an annular protrusion arranged circumferentially along the assembly groove.

[0006] Optionally, the limiting groove is an annular groove arranged circumferentially along the opening, and the number of limiting protrusions is multiple, with the multiple limiting protrusions arranged at intervals along the circumferential direction of the assembly groove, and all the multiple limiting protrusions are engaged in the limiting groove.

[0007] Optionally, there are multiple limiting grooves and multiple limiting protrusions. The multiple limiting grooves are arranged at intervals along the circumference of the opening, and the multiple limiting protrusions are arranged at intervals along the circumference of the assembly groove. The multiple limiting protrusions are inserted into the multiple limiting grooves one by one.

[0008] Optionally, the limiting groove is an arc-shaped groove, and the limiting protrusion is an arc-shaped protrusion.

[0009] Optionally, the outer wall of the housing near the opening is provided with a first stepped surface, which is further away from the opening than the limiting groove; the inner wall of the assembly groove is provided with a second stepped surface, which is closer to the groove opening of the assembly groove than the limiting protrusion, and the second stepped surface abuts against the first stepped surface.

[0010] Optionally, the housing has an extension that slopes inward toward the inside of the opening around the periphery of the opening, and the limiting groove is disposed on the outer side wall of the extension.

[0011] Optionally, the water tank may further include an inner liner disposed within the outer shell, wherein the space between the inner liner and the outer shell is filled with foaming material.

[0012] Optionally, the heat pump water heater further includes a cover that covers the outer periphery of the water receiving tray.

[0013] Optionally, the outer wall of the assembly groove is formed with a third stepped surface, which abuts against the end face of the cover.

[0014] The heat pump water heater provided in this application embodiment has a limiting groove on the outer wall of the outer shell of the water tank near its end opening, an assembly groove on the end of the water receiving tray, and a limiting protrusion on the inner side wall of the assembly groove. During assembly, the end of the outer shell with the opening is inserted into the assembly groove, and the limiting protrusion is engaged in the limiting groove, so that the outer shell and the water receiving tray can be connected. The assembly operation is simple, and there is no need to use screws to connect the outer shell and the water receiving tray, which improves the assembly efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of this application. Those skilled in the art can obtain other drawings based on these drawings without creative effort. In the following description, the same reference numerals denote the same parts.

[0016] Figure 1 This is a schematic diagram of the structure of a heat pump water heater provided in an embodiment of this application.

[0017] Figure 2 for Figure 1 The diagram shows the exploded structure of a heat pump water heater.

[0018] Figure 3 for Figure 1 The diagram shows a cross-sectional view of a heat pump water heater.

[0019] Figure 4 for Figure 3 The diagram shows an enlarged view of part A of the heat pump water heater.

[0020] Explanation of icon numbers:

[0021] 100. Water tank; 110. Outer shell; 111. Opening; 112. Limiting groove; 113. First stepped surface; 114. Extension; 120. Inner liner; 200. Water receiving tray; 201. Assembly groove; 202. Limiting protrusion; 203. Second stepped surface; 204. Third stepped surface; 205. Water collection trough; 300. Cover; 301. Installation space; 302. End face. Detailed Implementation

[0022] 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 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.

[0023] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, and therefore should not be construed as a limitation of this application. Furthermore, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or illustration." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] This application provides a heat pump water heater, such as... Figures 1-4 As shown, the heat pump water heater includes a water tank 100 and a water receiving tray 200. The water tank 100 includes a shell 110, with an opening 111 at one end and a limiting groove 112 on the outer side wall of the shell 110 near the opening 111. The water receiving tray 200 has an assembly groove 201 at one end and a limiting protrusion 202 on the inner side wall of the assembly groove 201. The end of the shell 110 with the opening 111 is inserted into the assembly groove 201, and the limiting protrusion 202 is engaged in the limiting groove 112.

[0026] The heat pump water heater provided in this application embodiment has a limiting groove 112 on the outer wall of the outer shell 110 of the water tank 100 near its end opening 111, and an assembly groove 201 on the end of the water receiving tray 200 with a limiting protrusion 202 on the inner side wall of the assembly groove 201. Thus, during assembly, the end of the outer shell 110 with the opening 111 is inserted into the assembly groove 201 and the limiting protrusion 202 is engaged in the limiting groove 112, thereby realizing the connection between the outer shell 110 and the water receiving tray 200. The assembly operation is simple, and there is no need to use screws to connect the outer shell 110 and the water receiving tray 200, which improves the assembly efficiency and reduces the production cost.

[0027] Understandably, existing technologies typically use a method where the water tank is fixed by embedding the water tray inside. However, when the foaming material inside the water tank foams, the tank may expand, increasing the clearance between the tank and the water tray, reducing the fixing effect, and causing leakage of the foaming material. This application addresses this issue by inserting the end of the outer shell 110 of the water tank 100 into the assembly groove 201 of the water tray 200. In other words, this application uses a method where the outer shell 110 of the water tank 100 is embedded within the water tray 200. This utilizes the outward pressure of the foaming material during foaming to press the outer shell 110 and the water tray 200 tightly together, effectively preventing the foaming material from overflowing from the assembly point between the water tank 100 and the water tray 200, thus solving the problem of foaming material leakage.

[0028] Furthermore, existing technologies also use snap-fit ​​structures to connect the water tank and the drip tray. However, when the water tank is made of sheet metal, the snap-fit ​​connection may not guarantee the roundness of the water tank due to the stress deformation of the sheet metal and insufficient snap-fit ​​strength. In contrast, this application inserts the end of the outer shell 110 of the water tank 100 into the assembly groove 201 of the drip tray 200 and uses a connection method in which the limiting protrusion 202 and the limiting groove 112 cooperate. This can effectively guarantee the roundness of the outer shell 110 of the water tank 100. Moreover, this application also has the compatibility of sheet metal and plastic parts assembly, which can meet the needs of drip trays 200 made of different materials. Effective fixation can also be achieved when using a drip tray 200 made of sheet metal.

[0029] Optionally, the limiting groove 112 is an annular groove arranged circumferentially along the opening 111, and the limiting protrusion 202 is an annular protrusion arranged circumferentially along the assembly groove 201. That is, the limiting groove 112 is annularly arranged circumferentially along the opening 111 of the outer shell 110, and the limiting protrusion 202 is annularly arranged circumferentially along the assembly groove 201 of the water receiving tray 200. By adopting a structure in which the annular groove and the annular protrusion cooperate, the sealing performance at the assembly point between the water receiving tray 200 and the outer shell 110 can be improved, thereby effectively preventing the foaming material inside the outer shell 110 from overflowing from the assembly point between the outer shell 110 and the water receiving tray 200, thus ensuring the clean appearance of the heat pump water heater and more reliable strength.

[0030] Alternatively, the limiting groove 112 can be an annular groove arranged circumferentially along the opening 111, with multiple limiting protrusions 202 spaced apart circumferentially along the assembly groove 201, all of which engage in the limiting groove 112. In other words, multiple limiting protrusions 202 can simultaneously engage in the annular groove, allowing any one of them to engage at a different position during assembly. This eliminates the need for positioning the water tray 200 circumferentially along the opening 111 of the outer casing 110, making it easier to secure the water tray 200 to the outer casing 110 and simplifying assembly.

[0031] Alternatively, there can be multiple limiting grooves 112 and multiple limiting protrusions 202. The multiple limiting grooves 112 are spaced apart circumferentially along the opening 111, and the multiple limiting protrusions 202 are spaced apart circumferentially along the assembly groove 201. Each of the multiple limiting protrusions 202 is inserted into a corresponding limiting groove 112. Using this method, the connection between the outer casing 110 and the water receiving tray 200 can also be achieved.

[0032] In some embodiments of this application, the limiting groove 112 is an arc-shaped groove, and the limiting protrusion 202 is an arc-shaped protrusion. It is understood that the mating of the arc-shaped groove and the arc-shaped protrusion is relatively easy, allowing the limiting protrusion 202 to smoothly engage with the limiting groove 112, thereby facilitating the connection between the outer casing 110 and the water receiving tray 200 and improving assembly efficiency. It should also be noted that setting the limiting groove 112 as an arc-shaped groove and the limiting protrusion 202 as an arc-shaped protrusion facilitates forming and reduces processing difficulty.

[0033] Optionally, the outer wall of the outer casing 110 near the opening 111 is provided with a first stepped surface 113, which is further away from the opening 111 than the limiting groove 112; the inner wall of the assembly groove 201 is provided with a second stepped surface 203, which is closer to the opening of the assembly groove 201 than the limiting protrusion 202, and the second stepped surface 203 abuts against the first stepped surface 113. By setting the first stepped surface 113 and the second stepped surface 203, multiple barriers are provided when water enters, thus effectively preventing water from entering; moreover, the water receiving tray 200 can be tightly fitted with the outer casing 110 of the water tank 100, effectively preventing the foaming material inside the outer casing 110 from overflowing from the assembly point between the outer casing 110 and the water receiving tray 200, thereby ensuring the clean appearance of the heat pump water heater.

[0034] Specifically, the first step surface 113 is arranged in a ring shape along the circumference of the opening 111, and the second step surface 203 is arranged in a ring shape along the circumference of the assembly groove 201. This allows the water receiving tray 200 to fit more tightly with the outer shell 110 of the water tank 100, thereby more effectively preventing the foaming material from overflowing from the assembly point between the outer shell 110 and the water receiving tray 200.

[0035] Optionally, the limiting groove 112 and the first step surface 113 are integrally formed with the outer shell 110, and the limiting protrusion 202 and the second step surface 203 are integrally formed with the water receiving tray 200, which makes it easier to manufacture and reduces production difficulty.

[0036] In some embodiments of this application, the outer casing 110 has an extension 114 inclined toward the inside of the outer casing 110 at the periphery of the opening 111, and a limiting groove 112 is provided on the outer side wall of the extension 114. That is, the extension 114 is configured to extend from the outer casing 110 to the water receiving tray 200. Figure 4 The cross-sectional area gradually decreases from bottom to top, thus the water receiving tray 200 can extend from the water receiving tray 200 to the outer casing 110. Figure 4 It was successfully installed onto the outer shell 110 of the water tank 100 (from top to bottom).

[0037] Specifically, when the outer casing 110 has an extension 114 and a first stepped surface 113, the first stepped surface 113 is disposed on the outer side wall of the extension 114, and the first stepped surface 113 is further away from the opening 111 than the limiting groove 112.

[0038] In some embodiments of this application, the water tank 100 further includes an inner liner 120 disposed within the outer shell 110, with foam material filling the space between the inner liner 120 and the outer shell 110. By filling the space between the inner liner 120 and the outer shell 110 with foam material, the outward extrusion force of the foam material can be used to press and fix the outer shell 110 and the water receiving tray 200 together, making the connection between the outer shell 110 and the water receiving tray 200 more stable and reliable. At the same time, the outward extrusion force of the foam material also reduces the gap between the outer shell 110 and the water receiving tray 200, thereby more effectively preventing the foam material from overflowing from the assembly point of the outer shell 110 and the water receiving tray 200.

[0039] Understandably, the water receiving tray 200 has a pre-drilled foam filling hole. During assembly, the water receiving tray 200 is first installed at the opening 111 of the outer shell 110, and then the foam filling is filled from the foam filling hole of the water receiving tray 200 into the space between the inner liner 120 and the outer shell 110. The outward extrusion force of the foam filling makes the outer shell 110 of the water tank 100 and the water receiving tray 200 fit tightly together.

[0040] In some embodiments of this application, the heat pump water heater further includes a cover 300, which covers the outer periphery of the water receiving tray 200. By covering the outer periphery of the water receiving tray 200 with the cover 300, the cover 300 can conceal the water receiving tray 200, making the appearance of the heat pump water heater neater and more aesthetically pleasing.

[0041] Specifically, an installation space 301 is formed within the enclosure 300. The installation space 301 is used to install components such as the compressor, evaporator, and fan. By shielding these components with the enclosure 300, the overall aesthetics of the heat pump water heater can be improved. The evaporator is located on top of the water receiving pan 200, which has a water collection tank 205. When the evaporator is working, the condensate droplets generated on its surface flow into the water collection tank 205.

[0042] Optionally, the outer wall of the assembly groove 201 is formed with a third stepped surface 204, which abuts against the end face 302 of the cover 300. Forming the third stepped surface 204 on the outer wall of the assembly groove 201 facilitates the positioning of the cover 300 during assembly with the water receiving tray 200, thus improving assembly efficiency. Specifically, to ensure the connection stability between the cover 300 and the water receiving tray 200, the cover 300 and the water receiving tray 200 can also be fixed with screws.

[0043] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0044] The heat pump water heater provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A heat pump water heater, characterized in that, include: A water tank (100) includes a shell (110), an opening (111) is provided at the end of the shell (110), and a limiting groove (112) is provided on the outer side wall of the shell (110) near the opening (111). A water receiving tray (200) is provided at the end of the water receiving tray (200), and a limiting protrusion (202) is provided on the inner side wall of the assembly groove (201). The end of the outer shell (110) with the opening (111) is inserted into the assembly groove (201), and the limiting protrusion (202) is engaged in the limiting groove (112).

2. The heat pump water heater according to claim 1, characterized in that, The limiting groove (112) is an annular groove arranged circumferentially along the opening (111), and the limiting protrusion (202) is an annular protrusion arranged circumferentially along the assembly groove (201).

3. The heat pump water heater according to claim 1, characterized in that, The limiting groove (112) is an annular groove arranged circumferentially along the opening (111). There are multiple limiting protrusions (202), which are spaced apart circumferentially along the assembly groove (201). All the limiting protrusions (202) are inserted into the limiting groove (112).

4. The heat pump water heater according to claim 1, characterized in that, The number of the limiting grooves (112) and the limiting protrusions (202) are both multiple. The multiple limiting grooves (112) are arranged circumferentially at intervals along the opening (111), and the multiple limiting protrusions (202) are arranged circumferentially at intervals along the assembly groove (201). The multiple limiting protrusions (202) are inserted into the multiple limiting grooves (112) one by one.

5. The heat pump water heater according to claim 1, characterized in that, The limiting groove (112) is an arc-shaped groove, and the limiting protrusion (202) is an arc-shaped protrusion.

6. The heat pump water heater according to claim 1, characterized in that, The outer wall of the outer casing (110) near the opening (111) is provided with a first stepped surface (113), which is further away from the opening (111) than the limiting groove (112); the inner wall of the assembly groove (201) is provided with a second stepped surface (203), which is closer to the opening of the assembly groove (201) than the limiting protrusion (202), and the second stepped surface (203) abuts against the first stepped surface (113).

7. The heat pump water heater according to any one of claims 1 to 6, characterized in that, The outer casing (110) has an extension (114) that is inclined toward the inside of the outer casing (110) around the periphery of the opening (111), and the limiting groove (112) is provided on the outer side wall of the extension (114).

8. The heat pump water heater according to any one of claims 1 to 6, characterized in that, The water tank (100) also includes an inner liner (120) disposed inside the outer shell (110), and the space between the inner liner (120) and the outer shell (110) is filled with foam material.

9. The heat pump water heater according to any one of claims 1 to 6, characterized in that, The heat pump water heater also includes a cover (300), which covers the outer periphery of the water receiving tray (200).

10. The heat pump water heater according to claim 9, characterized in that, The outer wall of the assembly groove (201) is formed with a third step surface (204), which abuts against the end face (302) of the cover (300).

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