Heat pump water heater

Abstract

The utility model discloses a heat pump water heater which comprises a machine head assembly, a water tank assembly and a first drainage pipe. The machine head assembly comprises a water pan, the water pan is provided with a drainage port, the water tank assembly comprises a water tank shell and a water tank body, the water tank body is arranged in the water tank shell, the water pan is arranged outside the water tank shell, the first drainage pipe is arranged between the water tank body and the water tank shell, and the first end of the first drainage pipe is communicated with the drainage port. The second end of the first drainage pipe extends to the bottom of the water tank shell and communicates with the outside. The first drain pipe is hidden between the water tank body and the water tank shell and is not exposed, so that the structure of the heat pump water heater is attractive, the second drain pipe is located below the heat pump water heater, the upper end of the second drain pipe is connected with the second end of the first drain pipe, and the lower end of the second connecting pipe is connected with the floor drain. According to the scheme, the space height occupied by the second drainage pipe is small, the installation position of the second drainage pipe is low, and the second drainage pipe is easier to accept by users.

Description

Technical Field

[0001] The utility model relates to the field of household electrical appliances, and more specifically, to a heat pump water heater. Background Art

[0002] The existing heat pump water heater includes a head assembly, a water tank assembly and a second drain pipe. The head assembly includes a head shell and a water receiving tray. The water receiving tray is provided with a drain port. The head shell is provided with a receiving port. The water receiving tray is installed on the upper part of the water tank assembly. The head shell is sleeved outside the water receiving tray. The drain port extends out of the head shell from the receiving port. The second drain pipe is located on one side of the head shell and the water tank assembly. The upper end of the second drain pipe is connected to the drain port. The lower end of the second drain pipe is connected to the floor drain. In this solution, the second drain pipe occupies a relatively large space and has a relatively high installation height, which is difficult for users to accept. Utility Model Content

[0003] The embodiment of the utility model provides a heat pump water heater, which can reduce the height of the space occupied by the second drain pipe and can also reduce the installation height of the second drain pipe.

[0004] The heat pump water heater provided by the embodiment of the utility model includes a head assembly, a water tank assembly and a first drain pipe; the head assembly includes a water receiving tray, the water receiving tray is provided with a drain port, the water tank assembly includes a water tank shell and a water tank body, the water tank body is arranged in the water tank shell, the water receiving tray is arranged outside the water tank shell, the first drain pipe is arranged between the water tank body and the water tank shell, the first end of the first drain pipe is connected to the drain port, and the second end of the first drain pipe extends to the bottom of the water tank shell and is connected to the outside.

[0005] In some exemplary embodiments, a filling layer is provided between the water tank shell and the water tank body, and the first drain pipe is located in the filling layer.

[0006] In some exemplary embodiments, the filling layer is a foaming layer.

[0007] In some exemplary embodiments, the water tank shell includes: a shell peripheral wall; and a shell bottom cover, which is arranged at the lower part of the shell peripheral wall, and the shell bottom cover is provided with a second installation port, and the second end of the first drain pipe is fixed at the second installation port.

[0008] In some exemplary embodiments, a second recessed platform is provided on the periphery of the outer bottom surface of the bottom cover of the outer shell, the second mounting port is located on the top wall of the second recessed platform, the second end of the first drain pipe includes a first connecting portion, a threaded fitting section and a stop portion, the stop portion abuts against the inner bottom surface of the bottom cover of the outer shell, the first connecting portion and the threaded fitting section are both passed through the second mounting port into the second recessed platform, the connecting nut is located in the second recessed platform and is screwed onto the threaded fitting section, and the first connecting portion is configured to be connected to the second drain pipe.

[0009] In some exemplary embodiments, the water tank shell further includes: a shell top cover, which is disposed on the upper part of the shell peripheral wall, the shell top cover is provided with a first mounting port, the first end of the first drain pipe is fixed at the first mounting port, and the water receiving tray is disposed on the outer top surface of the shell top cover.

[0010] In some exemplary embodiments, a first recessed platform is provided on the periphery of the outer top surface of the outer shell top cover, the first mounting port is located on the bottom wall of the first recessed platform, the first end of the first drain pipe includes a second connecting portion, a threaded fitting portion and a stopper portion, the stopper portion abuts against the inner top surface of the outer shell top cover, the second connecting portion and the threaded fitting portion are both passed through the first mounting port into the first recessed platform, the connecting nut is located in the first recessed platform and is screwed onto the threaded fitting portion, and the second connecting portion and the drain port are sealed and plug-in connected.

[0011] In some exemplary embodiments, a guide portion is disposed between the second connection portion and the drain port, and the guide portion is configured to guide one of the drain port and the second connection portion to be inserted into the other of the drain port and the second connection portion.

[0012] In some exemplary embodiments, the first drain pipe includes a first pipe segment, a deformable pipe segment, and a second pipe segment connected in sequence, an end of the first pipe segment away from the deformable pipe segment is the first end of the first drain pipe, and an end of the second pipe segment away from the deformable pipe segment is the second end of the first drain pipe.

[0013] In some exemplary embodiments, one of the first pipe segment and the second pipe segment is a curved pipe segment, the other is a straight pipe segment, and the deformable pipe segment is a corrugated pipe segment.

[0014] In the heat pump water heater provided by the embodiment of the utility model, the first drain pipe is hidden between the water tank body and the water tank shell and is not exposed, so that the structure of the heat pump water heater is more beautiful, and the second drain pipe is located below the heat pump water heater, the upper end of the second drain pipe is connected to the second end of the first drain pipe, and the lower end of the second connecting pipe is connected to the floor drain. In this solution, the space occupied by the second drain pipe is relatively small, and the installation position of the second drain pipe is also relatively low, which is more easily accepted by users.

[0015] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0017] Figure 1 A schematic diagram of a partial structure of a heat pump water heater provided in one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the middle water tray;

[0019] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the top cover of the middle shell;

[0020] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure of the first drainage pipe;

[0021] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure of the first end of the first drainage pipe;

[0022] Figure 6 for Figure 4 Schematic diagram of the three-dimensional structure of the second end of the first drainage pipe.

[0023] in, Figures 1 to 6 The corresponding relationship between the reference numerals and the component names is as follows:

[0024] 100 water receiving tray, 110 drain outlet, 210 water tank body, 220 outer shell top cover, 221 first sink, 222 first installation port, 230 outer shell bottom cover, 231 second sink, 300 first drain pipe, 310 first pipe section, 320 deformable pipe section, 330 second pipe section, 510 first connecting part, 520 second connecting part, 530 threaded fitting section, 540 stopper. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the embodiments of the utility model will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0026] The heat pump water heater provided by the embodiment of the utility model is as follows Figures 1 to 4 As shown, it includes a head assembly, a water tank assembly and a first drain pipe 300; the head assembly includes a water receiving tray 100, the water receiving tray 100 is provided with a drain port 110, the water tank assembly includes a water tank shell and a water tank body 210, the water tank body 210 is arranged in the water tank shell, the water receiving tray 100 is arranged outside the water tank shell, the first drain pipe 300 is arranged between the water tank body 210 and the water tank shell, the first end of the first drain pipe 300 is connected to the drain port 110, and the second end of the first drain pipe 300 extends to the bottom of the water tank shell and is connected to the outside.

[0027] In the heat pump water heater, the first drain pipe 300 is hidden between the water tank body 210 and the water tank shell and is not exposed, so that the structure of the heat pump water heater is more beautiful. The second drain pipe is located below the heat pump water heater, and the upper end of the second drain pipe is connected to the second end of the first drain pipe 300, and the lower end of the second connecting pipe is connected to the floor drain. In this solution, the space occupied by the second drain pipe is relatively small, and the installation position of the second drain pipe is also relatively low, which is more easily accepted by users.

[0028] In some examples, a filling layer (not shown) is provided between the water tank shell and the water tank body 210, and the first drain pipe 300 is located in the filling layer, which not only insulates the water tank body 210 but also positions the first drain pipe 300. Alternatively, the filling layer is provided as a foaming layer.

[0029] In some examples, such as Figure 1 As shown, the water tank shell includes: a shell peripheral wall (not shown in the figure); and a shell bottom cover 230, the shell bottom cover 230 is arranged at the lower part of the shell peripheral wall, the shell bottom cover 230 is provided with a second mounting port, the second end of the first drain pipe 300 is fixed at the second mounting port, and the second end of the first drain pipe 300 is positioned through the second mounting port, so that the second end of the first drain pipe 300 is fixed at a unique position on the shell bottom cover 230.

[0030] In some embodiments, Figure 1 , Figure 4 and Figure 6 As shown, the outer bottom surface of the housing bottom cover 230 is provided with a second sink 231 that is recessed upward, and one end of the second sink 231 that faces the radial outer side of the housing bottom cover 230 is passed through, and the second installation port is located on the top wall of the second sink 231. The second end of the first drain pipe 300 includes a first connection portion 510, a threaded fitting section 530, and a stopper 540 (such as a stopper boss), and the stopper 540 abuts against the inner bottom surface of the housing bottom cover 230 downward, and the first connection portion 510 and the threaded fitting section 530 are both downwardly penetrated into the second sink 231 from the second installation port, and the connecting nut is located in the second sink 231 and screwed onto the threaded fitting section 530, so that the second end of the first drain pipe 300 is fixed at the second installation port, and the first connection portion 510 is configured to be connected to the second drain pipe. This solution connects the upper end of the second drain pipe to the first connection portion 510 below the housing bottom cover 230, which is easier to operate. The upper end of the second drain pipe may be threadedly connected to the first connection portion 510; or the upper end of the second drain pipe may be sealed plug-in connected to the first connection portion 510 (such as interference fit); all of the above can achieve the purpose of this application, and the purpose does not deviate from the design concept of the utility model, and will not be repeated here, and all should belong to the protection scope of this application. Further, the connecting nut is sunk into the second sink 231 and does not protrude from the outer end surface of the second sink 231.

[0031] In some examples, such as Figure 1 and Figure 3 As shown, the water tank shell also includes: a shell top cover 220, which is arranged on the upper part of the shell peripheral wall, and the shell top cover 220 is provided with a first installation port 222. The first end of the first drain pipe 300 is fixed at the first installation port 222. The first end of the first drain pipe 300 is positioned through the first installation port 222, which is more conducive to the connection between the first end of the first drain pipe 300 and the drain port 110. The water receiving tray 100 is arranged on the outer top surface of the shell top cover 220, that is, the water receiving tray 100 is located above the shell top cover 220 and installed on the shell top cover 220.

[0032] In some embodiments, Figures 1 to 4 , Figure 5As shown, the outer top surface of the housing top cover 220 is provided with a first sunken platform 221 which is concave downwards, one end of the first sunken platform 221 facing the radial outer side of the housing top cover 220 is penetrated, and the first installation port 222 is located at the bottom wall of the first sunken platform 221. The first end of the first drain pipe 300 includes a second connecting portion 520, a threaded matching portion and a stopper 540 (such as a stopper boss), and the stopper 540 abuts against the inner top surface of the housing top cover 220 upwards. The second connecting portion 520 and the threaded matching portion are both upwardly penetrated into the first sunken platform 221 from the first installation port 222, and the connecting nut is located in the first sunken platform 221 and screwed on the threaded matching portion, so that the first end of the first drain pipe 300 is fixed at the first installation port 222, and the second connecting portion 520 and the drain port 110 are sealed and plugged in connection, such as interference connection. Further, the connecting nut is sunken into the first sunken platform 221 and does not protrude from the outer end surface of the first sunken platform 221.

[0033] In some embodiments, Figure 2 As shown, a guide portion is provided between the second connection portion 520 and the drain port 110, and the guide portion is configured to guide one of the drain port 110 and the second connection portion 520 to be inserted into the other of the drain port 110 and the second connection portion 520, so as to increase the plugging speed of the second connection portion 520 and the drain port 110. The guide portion may be configured as a guide slope; or the guide portion may be configured as a guide curved surface, etc.; the drain port 110 may be inserted into the second connection portion 520; or the second connection portion 520 may be inserted into the drain port 110, etc.; all of the above can achieve the purpose of this application, and the purpose does not deviate from the design concept of the utility model, and will not be repeated here, and all should fall within the protection scope of this application.

[0034] In some examples, such as Figures 4 to 6 As shown, the first drain pipe 300 includes a first pipe section 310, a deformable pipe section 320, and a second pipe section 330 connected in sequence, the end of the first pipe section 310 away from the deformable pipe section 320 is the first end of the first drain pipe 300, and the end of the second pipe section 330 away from the deformable pipe section 320 is the second end of the first drain pipe 300. The positions of the first pipe section 310 and the second pipe section 330 are adjusted by the deformable pipe section 320, which is more conducive to aligning the end of the first pipe section 310 away from the deformable pipe section 320 with the first installation port 222, and aligning the end of the second pipe section 330 away from the deformable pipe section 320 with the second installation port.

[0035] It can be, for example Figure 4 and Figure 5 As shown, the first pipe section 310 is set as a curved pipe section; or it can be that the first pipe section 310 is set as a straight pipe section; it can be that the second pipe section 330 is set as a curved pipe section; or it can be that Figure 4 and Figure 6As shown, the second pipe section 330 is set as a straight pipe section; it can be, for example Figure 4 As shown, the deformable tube section 320 is configured as a corrugated tube section, etc.; the above can achieve the purpose of this application, and its purpose does not deviate from the design concept of the utility model, and will not be repeated here, and should all fall within the protection scope of this application.

[0036] To sum up, in the heat pump water heater provided by the embodiment of the utility model, the first drain pipe is hidden between the water tank body and the water tank shell and is not exposed, so that the structure of the heat pump water heater is more beautiful, and the second drain pipe is located below the heat pump water heater, the upper end of the second drain pipe is connected to the second end of the first drain pipe, and the lower end of the second connecting pipe is connected to the floor drain. In this scheme, the space occupied by the second drain pipe is relatively small, and the installation position of the second drain pipe is also relatively low, which is more easily accepted by users.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "mouth-shaped structure" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", and "assembly" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", and "fixed connection" can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] Although the implementation methods disclosed in the utility model are as above, the above contents are only implementation methods adopted to facilitate the understanding of the utility model, and are not used to limit the utility model. Any technician in the field to which the utility model belongs can make any modifications and changes in the form and details of implementation without departing from the spirit and scope disclosed in the utility model, but the scope of patent protection of the utility model shall still be defined by the attached claims.

Claims

1. A heat pump water heater, characterized in that: It includes a head assembly, a water tank assembly and a first drain pipe; the head assembly includes a water receiving tray, the water receiving tray is provided with a drain port, the water tank assembly includes a water tank shell and a water tank body, the water tank body is arranged in the water tank shell, the water receiving tray is arranged outside the water tank shell, the first drain pipe is arranged between the water tank body and the water tank shell, the first end of the first drain pipe is connected to the drain port, and the second end of the first drain pipe extends to the bottom of the water tank shell and is connected to the outside.

2. The heat pump water heater according to claim 1, characterized in that: A filling layer is provided between the water tank shell and the water tank body, and the first drain pipe is located in the filling layer.

3. The heat pump water heater according to claim 2, characterized in that: The filling layer is a foaming layer.

4. The heat pump water heater according to any one of claims 1 to 3, characterized in that: The water tank housing comprises: The peripheral wall of the housing; and The shell bottom cover is arranged at the lower part of the shell peripheral wall, and the shell bottom cover is provided with a second installation opening, and the second end of the first drain pipe is fixed at the second installation opening.

5. The heat pump water heater according to claim 4, characterized in that: The outer bottom surface of the bottom cover of the outer shell is surrounded by a second sunken platform which is recessed upward. The second mounting port is located on the top wall of the second sunken platform. The second end of the first drain pipe includes a first connecting portion, a threaded fitting section and a stopper. The stopper abuts against the inner bottom surface of the bottom cover of the outer shell. The first connecting portion and the threaded fitting section are both inserted into the second sunken platform from the second mounting port. The connecting nut is located in the second sunken platform and is screwed onto the threaded fitting section. The first connecting portion is configured to be connected to the second drain pipe.

6. The heat pump water heater according to claim 4, characterized in that: The water tank housing also includes: The outer shell top cover is arranged on the upper part of the outer shell peripheral wall, the outer shell top cover is provided with a first installation opening, the first end of the first drain pipe is fixed at the first installation opening, and the water receiving tray is arranged on the outer top surface of the outer shell top cover.

7. The heat pump water heater according to claim 6, characterized in that: A first recessed platform is provided around the outer top surface of the outer shell top cover, and the first mounting port is located on the bottom wall of the first recessed platform. The first end of the first drain pipe includes a second connecting portion, a threaded fitting portion and a stopper portion, and the stopper portion abuts against the inner top surface of the outer shell top cover. The second connecting portion and the threaded fitting portion are both passed through the first mounting port and arranged in the first recessed platform. The connecting nut is located in the first recessed platform and is screwed onto the threaded fitting portion. The second connecting portion and the drain port are sealed and plug-in connected.

8. The heat pump water heater according to claim 7, characterized in that: A guide portion is provided between the second connection portion and the drain port, and the guide portion is configured to guide one of the drain port and the second connection portion to be inserted into the other of the drain port and the second connection portion.

9. The heat pump water heater according to any one of claims 1 to 3, characterized in that: The first drain pipe includes a first pipe segment, a deformable pipe segment and a second pipe segment connected in sequence, an end of the first pipe segment away from the deformable pipe segment is the first end of the first drain pipe, and an end of the second pipe segment away from the deformable pipe segment is the second end of the first drain pipe.

10. The heat pump water heater according to claim 9, characterized in that: One of the first pipe section and the second pipe section is a curved pipe section, the other is a straight pipe section, and the deformable pipe section is a corrugated pipe section.

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