Heat pump water heater and water tank assembly thereof

Abstract

The utility model provides a heat pump water heater and a water tank assembly thereof. The water tank assembly comprises an inner container; the heat exchange tube is arranged in the inner container and is spaced from the peripheral wall of the inner container; the limiting piece is arranged between the peripheral wall of the inner container and the heat exchange pipe and is arranged to prevent the heat exchange pipe from shaking relative to the peripheral wall of the inner container, so that the heat exchange pipe cannot make contact with the peripheral wall of the inner container to generate abnormal sound when the water tank assembly is transported and applied to the heat pump water heater to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump equipment, and more specifically, to a heat pump water heater and a water tank assembly thereof. Background Art

[0002] The water tank assembly of existing heat pump water heaters consists of an inner tank and heat exchange tubes. The heat exchange tubes are arranged spirally from bottom to top along the circumference of the inner tank and secured to the base of the inner tank via reinforcement bars. During transportation and operation, the heat exchange tubes are prone to vibration and contact with the inner tank walls, causing unusual noises in the heat pump water heater. Utility Model Content

[0003] An embodiment of the present utility model provides a water tank assembly of a heat pump water heater, comprising: an inner tank; a heat exchange tube, arranged in the inner tank and spaced from the peripheral wall of the inner tank; and a limit member, arranged between the peripheral wall of the inner tank and the heat exchange tube, and configured to prevent the heat exchange tube from shaking relative to the peripheral wall of the inner tank.

[0004] In some exemplary embodiments, the limiting member is clamped on the heat exchange tube.

[0005] In some exemplary embodiments, the heat exchange tube is spirally arranged along the circumference of the inner liner from one axial end of the inner liner to the other axial end of the inner liner to form a plurality of tube segments arranged in sequence in the axial direction of the inner liner, and the limiting member is provided with a bayonet, which is clamped on part of the tube segment, and the mouth wall of the bayonet extends into between part of the adjacent tube segments.

[0006] In some exemplary embodiments, the mouth wall of the bayonet is provided with barbs, each of the barbs is hooked on the adjacent pipe segments between the adjacent pipe segments into which it is inserted, and is configured to prevent the mouth wall of the bayonet from falling out from between the adjacent pipe segments into which it is inserted.

[0007] In some exemplary embodiments, the bayonet includes N bayonets arranged in sequence in the axial direction of the inner tank, and N of the multiple pipe segments are correspondingly inserted into the N bayonets, and the two mouth walls of each bayonet extend one by one into the pipe segment located in the bayonet and between the two adjacent pipe segments of the pipe segment, and N is an integer greater than 1.

[0008] In some exemplary embodiments, the limiting member is a flexible member.

[0009] In some exemplary embodiments, the shape of the inner surface of the bayonet matches the shape of the outer circumferential surface of the pipe segment.

[0010] In some exemplary embodiments, a guide surface is provided on one side of the limiting member facing the peripheral wall of the inner container, and the guide surface is configured to guide the peripheral wall of the inner container to be fitted onto the bottom plate of the inner container.

[0011] In some exemplary embodiments, a side of the limiting member facing the peripheral wall of the inner container is provided with a fitting surface, and the fitting surface abuts against the peripheral wall of the inner container.

[0012] In some exemplary embodiments, the heat exchange tube is fixed to the bottom plate of the inner tank via a reinforcement strip.

[0013] An embodiment of the present utility model further provides a heat pump water heater, comprising the water tank assembly of the heat pump water heater described in any of the above embodiments.

[0014] The water tank assembly of the heat pump water heater provided in the embodiment of the present invention has a limiter arranged between the peripheral wall of the inner tank and the heat exchange tube to prevent the heat exchange tube from shaking relative to the peripheral wall of the inner tank. In this way, during the transportation of the water tank assembly and the operation of the heat pump water heater, the heat exchange tube will not contact the peripheral wall of the inner tank and produce abnormal noise.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved 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 present invention 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 present invention and do not constitute a limitation on the technical solution of the present invention.

[0017] Figure 1 A schematic cross-sectional view of a water tank assembly provided in some embodiments of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the middle limiter.

[0019] The corresponding relationship between the reference numerals and component names is as follows:

[0020] 100 inner liner, 110 inner liner wall, 120 inner liner bottom plate, 200 heat exchange tube, 210 pipe section, 300 limiter, 310 bayonet, 320 barb, 330 guide surface, 340 fitting surface, 400 reinforcement strip. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0022] The water tank assembly of the heat pump water heater provided by the embodiment of the present utility model is as follows Figure 1 and Figure 2 As shown, it includes: an inner liner 100; a heat exchange tube 200, which is arranged in the inner liner 100 and separated from the peripheral wall 110 of the inner liner 100; and a limiter 300, which is arranged between the peripheral wall 110 of the inner liner 100 and the heat exchange tube 200, and the limiter 300 is configured to prevent the heat exchange tube 200 from shaking relative to the peripheral wall 110 of the inner liner 100.

[0023] The water tank assembly, the limiter 300 is arranged between the peripheral wall 110 of the inner tank 100 and the heat exchange tube 200, preventing the heat exchange tube 200 from shaking relative to the peripheral wall 110 of the inner tank 100. In this way, during the transportation of the water tank assembly and the operation of the heat pump water heater, the heat exchange tube 200 will not contact the peripheral wall 110 of the inner tank 100 and produce abnormal noise.

[0024] In some examples, such as Figure 1 and Figure 2 As shown, the limiting member 300 is clamped on the heat exchange tube 200. In this solution, the installation method of the limiting member 300 is simple and easy to operate.

[0025] In some embodiments, as Figure 1 and Figure 2 As shown, the heat exchange tube 200 is spirally arranged along the circumference of the inner liner 100 from one axial end of the inner liner 100 to the other axial end of the inner liner 100, and a plurality of tube segments 210 are formed in sequence in the axial direction of the inner liner 100 (one circle of the spiral structure of the heat exchange tube 200 is one tube segment 210). The limiting member 300 is provided with a bayonet 310, which is clamped on a part of the tube segment 210, and the mouth wall of the bayonet 310 extends into between parts of adjacent tube segments 210.

[0026] It may be that the bayonet 310 includes one; or it may be that the bayonet 310 includes N bayonet 310 arranged in sequence in the axial direction of the inner liner 100, N is an integer greater than 1, and N can be 2 or 3 or 4, etc.; it may be that each bayonet 310 is clamped on a pipe segment 210; or it may be that each bayonet 310 is clamped on M adjacent pipe segments 210 in sequence, M is an integer greater than 1, and M can be 2 or 3 or 4, etc.; the above can all 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 scope of protection of this application.

[0027] In one embodiment, if Figure 1 and Figure 2 As shown, the bayonet 310 includes N bayonets 310 arranged in sequence in the axial direction of the inner liner 100, and the N adjacent pipe segments 210 in the multiple pipe segments 210 are correspondingly inserted into the N bayonets 310, and the two mouth walls of each bayonet 310 extend one by one between the pipe segment 210 located in the bayonet 310 and the two adjacent pipe segments 210 (located in the bayonet 310). N is an integer greater than 1. This solution facilitates the rapid installation of the limit member 300 on the heat exchange tube 100.

[0028] It can be that N is set to 2; or it can be that N is set to 3; or it can be that N is set to 4, etc.; all of the above can achieve the purpose of this application, and its purpose does not deviate from the design concept of this utility model, and will not be repeated here, and should all fall within the scope of protection of this application.

[0029] The wall of the bayonet 310 is provided with a barb 320, and each barb 320 is hooked on the adjacent pipe section 210 between which it is inserted, so as to prevent the wall of the bayonet 310 from falling out from between the adjacent pipe sections 210 into which it is inserted, thereby ensuring that the stopper 300 is firmly fixed on the pipe section 210 of the heat exchange tube 200 and does not fall off. It can be, for example Figure 2 As shown, only the common wall between adjacent bayonets 320 is provided with a barb 320, which can also achieve the purpose of this application. Its purpose does not deviate from the design concept of this utility model and will not be repeated here. It should also fall within the scope of protection of this application.

[0030] In some embodiments, the stopper 300 is a flexible member, which has better shock and noise reduction effects. Alternatively, the flexible member may be a silicone member, or a rubber member, etc. All of these embodiments can achieve the purpose of this application and do not deviate from the design concept of this utility model. These embodiments will not be further described here and should fall within the scope of protection of this application.

[0031] In some embodiments, as Figure 1 and Figure 2 As shown, the shape of the inner surface of the bayonet 310 matches the shape of the outer peripheral surface of the pipe section 210, so that the inner surface of the bayonet 310 fits better with the outer peripheral surface of the pipe section 210, and the heat exchange tube 200 is less likely to shake relative to the limiter 300 (that is, the pipe section 210 of the heat exchange tube 200 in the bayonet 310 will not shake in the bayonet 310).

[0032] In some examples, such as Figure 2As shown, a guide surface 330 is provided on the side of the limiting member 300 facing the peripheral wall 110 of the inner liner 100. The guide surface 330 is configured to guide the peripheral wall 110 of the inner liner 100 to be mounted on the bottom plate 120 of the inner liner 100. This solution can improve the installation efficiency of the peripheral wall 110 of the inner liner 100.

[0033] The guide surface 330 may be set as a guide inclined surface; or the guide surface may be set as a guide curved surface, etc.; all of 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 scope of protection of this application.

[0034] In some examples, a fitting surface 340 is provided on the side of the limiting member 300 facing the peripheral wall 110 of the inner liner 100, and the fitting surface 340 abuts against the peripheral wall 110 of the inner liner 100. This solution can prevent the limiting member 300 and the peripheral wall 110 of the inner liner 100 from shaking relative to each other, which is beneficial to better prevent the heat exchange tube 200 from contacting the peripheral wall 110 of the inner liner 100.

[0035] The bottom plate is located below the peripheral wall of the inner container, and the fitting surface 340 is located below the guide surface 330 .

[0036] In some examples, the heat exchange tube 200 is fixed to the bottom plate 120 of the inner liner 100 through the reinforcement strip 400 , so that the heat exchange tube 200 is fixed together with the bottom plate 120 of the inner liner 100 .

[0037] The heat pump water heater (not shown in the figures) provided in the embodiment of the present invention includes the water tank assembly of the heat pump water heater described in any of the above embodiments.

[0038] This heat pump water heater has all the advantages of the water tank assembly of the heat pump water heater provided by any of the above embodiments, which will not be described in detail here.

[0039] To sum up, the water tank assembly of the heat pump water heater provided in the embodiment of the present invention has a limiter provided between the peripheral wall of the inner tank and the heat exchange tube to prevent the heat exchange tube from shaking relative to the peripheral wall of the inner tank. In this way, during the transportation and operation of the water tank assembly in the heat pump water heater, the heat exchange tube will not contact the peripheral wall of the inner tank and produce abnormal noise.

[0040] 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", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing "this" utility model 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 limiting the present invention.

[0041] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" may refer to a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] Although the embodiments disclosed in the present invention are as described above, the contents described are merely embodiments adopted to facilitate understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art to which the present invention belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention. However, the scope of patent protection of the present invention shall still be defined by the attached claims.

Claims

1. A water tank assembly for a heat pump water heater, characterized in that: include: liner; a heat exchange tube, disposed in the inner liner and spaced apart from the peripheral wall of the inner liner; and a limiting member, provided between the peripheral wall of the inner liner and the heat exchange tube, and configured to prevent the heat exchange tube from shaking relative to the peripheral wall of the inner liner; The limiting member is clamped on the heat exchange tube; The heat exchange tubes are spirally arranged along the circumference of the inner liner from one axial end to the other axial end of the inner liner to form a plurality of tube segments arranged in sequence in the axial direction of the inner liner. The stopper is provided with a bayonet, which is clamped on part of the tube segments, and the mouth wall of the bayonet extends into between adjacent tube segments. A guide surface is provided on one side of the limiting member facing the peripheral wall of the inner container, and the guide surface is configured to guide the peripheral wall of the inner container to be fitted onto the bottom plate of the inner container.

2. The water tank assembly according to claim 1, characterized in that The mouth wall of the bayonet is provided with a barb, and each barb is hooked on the adjacent pipe section between the adjacent pipe sections inserted therein, so as to prevent the mouth wall of the bayonet from falling out from between the adjacent pipe sections inserted therein.

3. The water tank assembly according to claim 1, characterized in that The bayonet includes N bayonets arranged in sequence in the axial direction of the inner tank, and the N pipe segments among the multiple pipe segments are correspondingly inserted into the N bayonets. The two mouth walls of each bayonet extend one by one into the pipe segment located in the bayonet and between the two adjacent pipe segments of the pipe segment, and N is an integer greater than 1.

4. The water tank assembly according to claim 1, characterized in that The limiting member is a flexible member, and the shape of the inner surface of the bayonet matches the shape of the outer peripheral surface of the pipe section.

5. The water tank assembly according to any one of claims 1 to 4, characterized in that: A fitting surface is provided on one side of the limiting member facing the peripheral wall of the inner container, and the fitting surface abuts against the peripheral wall of the inner container.

6. The water tank assembly according to any one of claims 1 to 4, characterized in that: The heat exchange tube is fixed on the bottom plate of the inner container through a reinforcement strip.

7. A heat pump water heater, characterized in that: The water tank assembly comprises the heat pump water heater according to any one of claims 1 to 6.

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