Water tank assembly and heat pump water heater

Abstract

The embodiment of the utility model provides a water tank assembly and a heat pump water heater. The water tank assembly comprises a tank body, a water pan and a water leakage detection device. The water pan is arranged at the bottom, in the height direction of the water tank assembly, of the tank body. The water pan comprises a bottom wall body and a side wall body, the side wall body is annularly arranged on the peripheral side of the bottom wall body, and a water receiving groove facing the box body is defined by the side wall body and the bottom wall body; the water leakage detection device comprises a mounting base and a float switch, the float switch comprises a supporting body and a float movably arranged on the supporting body, the mounting base is placed on the bottom wall body, and the supporting body is fixed to the mounting base so that the float can ascend and descend in the height direction. The water tank assembly can well meet the accuracy requirement of the float switch in the height direction.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to a water tank assembly and a heat pump water heater. Background Art

[0002] In the related art, due to the need for heat pump heating, a heat pump water heater is generally provided with a water tank with a large capacity. The water tank is an important core pressure vessel of the heat pump water heater. Therefore, for the leakage problem of the water tank, corresponding detection elements are usually provided to perform leakage detection.

[0003] There are many ways to detect water leakage, one of which is to use a float switch for detection. The structure of the float switch is relatively simple, but the float switch has high requirements for accuracy in the height direction. In related technologies, the installation method of the float switch is difficult to meet the accuracy requirements in the height direction. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide a water tank assembly and a heat pump water heater that can better meet the accuracy requirements of the float switch in the height direction.

[0005] To achieve the above objectives, the present application provides a water tank assembly, including:

[0006] Box;

[0007] A water receiving tray, the water receiving tray is arranged at the bottom of the box body along the height direction of the water tank assembly; the water receiving tray comprises a bottom wall body and a side wall body, the side wall body is arranged around the periphery of the bottom wall body, and together with the bottom wall body defines a water receiving groove facing the box body;

[0008] A water leakage detection device, the water leakage detection device includes a mounting seat and a float switch, the float switch includes a supporting body and a float movably arranged on the supporting body, the mounting seat is placed on the bottom wall body, the supporting body is fixed to the mounting seat, so that the float can be raised and lowered along the height direction.

[0009] In one embodiment, the mounting seat is fixedly connected to at least one of the box body and the bottom wall body.

[0010] In one embodiment, the mounting seat is provided with a first fastening hole extending along the height direction; the box body includes a shell provided with a second fastening hole, and the second fastening hole is connected to the first fastening hole.

[0011] In one embodiment, the mounting seat includes a seat body and a connecting plate arranged on the seat body, the seat body is placed on the bottom wall body, the connecting plate is spaced apart from the bottom wall body, and the supporting body is fixedly connected to the connecting plate.

[0012] In one embodiment, the seat body includes two first mounting plates, which are respectively located on opposite sides of the connecting plate and are both in contact with the bottom wall body.

[0013] In one embodiment, at least one of the first mounting plates has a first flange formed by folding on a side facing away from the bottom wall, and the connecting plate abuts against the first flange; and / or,

[0014] At least one of the first mounting plates has a second flange folded in a direction away from the other first mounting plate, and the second flange is provided with a first fastening hole extending along the height direction; the box body includes a shell provided with a second fastening hole, and the second fastening hole is connected to the first fastening hole.

[0015] In one embodiment, the seat body includes a second mounting plate, the second mounting plate is located on a side of the connecting plate away from the box body, the two first mounting plates are respectively located on opposite sides of the second mounting plate, the second mounting plate is connected to the two first mounting plates to enclose a accommodating space, and the float is located in the accommodating space.

[0016] In one embodiment, the second mounting plate is provided with an observation hole, and at least a partial area of ​​the float is exposed to an external field of vision through the observation hole.

[0017] In one embodiment, the support body includes a guide rod, and the float includes a main body and a sliding part, the sliding part is slidably mounted on the outside of the guide rod, and the main body is located at the bottom of the sliding part along the height direction; the number of the observation holes is at least two, and each of the observation holes is spaced apart along the height direction so that the main body and the sliding part are respectively exposed to the external field of view through the corresponding observation holes.

[0018] In one embodiment, the support body includes a support plate having a limiting groove, and the connecting plate includes a plate body and a limiting portion, and the limiting portion is inserted into the limiting groove and fixedly connected to the support plate.

[0019] Another embodiment of the present application provides a heat pump water heater, including: the water tank assembly described above.

[0020] The embodiment of the present application provides a water tank assembly and a heat pump water heater. The water tank assembly can better ensure that the setting position of the mounting seat will not deviate in the height direction by placing the mounting seat for fixing the float switch on the bottom wall of the water receiving tray, thereby better ensuring that the setting position of the float switch fixed to the mounting seat will not deviate in the height direction, and thus can better meet the accuracy requirement of the float switch in the height direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a water tank assembly according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 for Figure 1 The structural schematic diagram of the water leakage detection device shown;

[0024] Figure 4 for Figure 3 The structural diagram of the float switch shown;

[0025] Figure 5 for Figure 1 A schematic structural diagram of the water tank assembly from another perspective shown;

[0026] Figure 6 for Figure 1 The structural schematic diagram of the water tank assembly shown is another perspective;

[0027] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0028] Description of reference numerals:

[0029] 10. Box body; 11. Shell; 11a. Second fastening hole; 20. Water receiving tray; 20a. Water receiving trough; 21. Bottom wall; 22. Side wall; 30. Water leakage detection device; 31. Mounting seat; 31a. First fastening hole; 311. Seat; 3111. First mounting plate; 3111a. First flange; 3111b. Second flange; 3112. Second mounting plate; 3112a. Observation hole; 312. Connecting plate; 3121. Plate body; 3122. Limiting part; 32. Float switch; 321. Support body; 3211. Guide rod; 3212. Support plate; 3212a. Limiting groove; 322. Float; 3221. Main body; 3222. Sliding part. DETAILED DESCRIPTION

[0030] In the description of the embodiments of the present application, it should be noted that the term "height direction" is based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0031] The present application embodiment provides a heat pump water heater. Figure 1, the heat pump water heater includes a water tank assembly.

[0032] The heat pump water heater may be an integrated heat pump water heater, in which a main unit and a water tank assembly are assembled together to form an integrated structure. For example, the main unit may be arranged on top of the water tank assembly.

[0033] The heat pump water heater may also be a split-type heat pump water heater, in which the main unit and the water tank assembly are separated, that is, the main unit and the water tank assembly are separately arranged.

[0034] See also Figures 1 to 7 The water tank assembly of the embodiment of the present application includes a tank body 10, a water receiving tray 20 and a water leakage detection device 30.

[0035] The water receiving tray 20 is disposed at the bottom of the box body 10 along the height direction of the water tank assembly, wherein the height direction refers to the height direction of the water tank assembly when it is in use.

[0036] The water receiving tray 20 includes a bottom wall 21 and a side wall 22 . The side wall 22 is disposed around the bottom wall 21 and defines a water receiving groove 20 a facing the housing 10 together with the bottom wall 21 .

[0037] The box body 10 is used to store water. If the box body 10 leaks, the water receiving tank 20 a can receive the water leaked from the box body 10 .

[0038] See also Figure 3 and Figure 4 The water leakage detection device 30 includes a mounting seat 31 and a float switch 32. The float switch 32 includes a supporting body 321 and a float 322 movably arranged on the supporting body 321. The mounting seat 31 is placed on the bottom wall 21, and the supporting body 321 is fixed to the mounting seat 31 so that the float 322 can be raised and lowered in the height direction.

[0039] The specific structural form of the float switch 32 is not limited, for example, please refer to Figure 4 The support body 321 may be provided with a guide rod 3211 , and the float 322 is slidably connected to the guide rod 3211 . Figure 4 The float 322 includes a main body 3221 and a sliding part 3222. The sliding part 3222 is slidably mounted on the outside of the guide rod 3211, and the main body 3221 is located at the bottom of the sliding part 3222 in the height direction. In other words, the sliding part 3222 slides along the guide rod 3211 to achieve lifting in the height direction. In other embodiments, the float 322 may not be provided with the sliding part 3222. For example, the main body 3221 may be directly mounted on the outside of the guide rod 3211.

[0040] In some other embodiments, the support body 321 may not be provided with the guide rod 3211. For example, the support body 321 may be provided with a guide channel, and the sliding part 3222 may be slidably disposed in the guide channel.

[0041] The support body 321 can be detachably connected to the mounting seat 31 . For example, the support body 321 and the mounting seat 31 can be fastened together by fasteners such as screws and bolts. The support body 321 can also be snap-fitted to the mounting seat 31 .

[0042] The support body 321 may also be non-detachably connected to the mounting seat 31 , for example, the support body 321 may be welded to the mounting seat 31 .

[0043] The water leakage detection device 30 detects the water leakage of the box body 10 through the float switch 32 .

[0044] For example, when the box body 10 leaks, the water leaked from the box body 10 will flow into the water receiving tank 20a. If the water level in the water receiving tank 20a reaches a preset water level, the float 322 will rise in height under the action of buoyancy, and the float switch 32 will be triggered to generate a signal, thereby realizing water leakage detection.

[0045] See also Figure 1 , Figure 5 and Figure 6 The mounting seat 31 is used to support the float switch 32 . The mounting seat 31 is placed on the bottom wall 21 , which means that the mounting seat 31 is at least placed on the bottom wall 21 , that is, the mounting seat 31 at least needs to contact with the bottom wall 21 .

[0046] The mounting seat 31 may not be fixedly connected to any structure of the water tank assembly, which is equivalent to the mounting seat 31 being simply placed on the bottom wall 21, and the water leakage detection device 30 may be directly separated from the bottom wall 21. The mounting seat 31 may also be fixedly connected to the bottom wall 21 or to other structures such as the box body 10 of the water tank assembly, and may also be fixedly connected to the bottom wall 21 and other structures such as the box body 10 at the same time.

[0047] For example, see Figure 2 , Figure 3 and Figure 7 The mounting seat 31 may be provided with a first fastening hole 31a extending in the height direction, that is, the first fastening hole 31a has a first length dimension in the height direction and a second length dimension in a horizontal direction perpendicular to the height direction, and the first length dimension is greater than the second length dimension. The box body 10 includes a housing 11 provided with a second fastening hole 11a, and the second fastening hole 11a is connected to the first fastening hole 31a.

[0048] The first fastening hole 31 a and the second fastening hole 11 a are used to pass fasteners such as screws and bolts, so that the mounting seat 31 and the housing 11 are fixedly connected by fastening.

[0049] The number of the first fastening holes 31 a may be one or more, and the second fastening holes 11 a on the housing 11 correspond to the first fastening holes 31 a.

[0050] The purpose of the first fastening hole 31 a extending in the height direction is to ensure that the mounting seat 31 can contact the bottom wall body 21 while the second fastening hole 11 a can communicate with the first fastening hole 31 a .

[0051] In the related art, the mounting base of the fixed float switch is generally connected to the water inlet pipe or water inlet valve of the water tank assembly. However, there are certain manufacturing tolerances in the installation position of the water inlet pipe or water inlet valve. In particular, for different models of heat pump water heaters, there may be greater differences in the installation position of the water inlet pipe or water inlet valve. Therefore, the setting position of the mounting base connected to the water inlet pipe or water inlet valve may also have certain deviations in the height direction. For example, the mounting base of some water tank assemblies can contact the bottom wall of the water receiving tray, while the mounting base of other water tank assemblies forms a gap with the bottom wall of the water receiving tray. However, the float switch realizes detection by the float rising and falling in the height direction. Therefore, the float switch has a high requirement for the accuracy in the height direction. If the setting position of the mounting base deviates in the height direction, the setting position of the float switch fixed to the mounting base in the height direction will also deviate, thereby affecting the detection accuracy of the float switch.

[0052] The water tank assembly of the embodiment of the present application is to place the mounting seat 31 for fixing the float switch 32 on the bottom wall 21 of the water receiving tray 20, that is, the mounting seat 31 will at least contact the bottom wall 21. Since the setting position of the mounting seat 31 will not be affected by other components of the water tank assembly such as the water inlet pipe and the water inlet valve, it can be better ensured that the setting position of the mounting seat 31 will not deviate in the height direction, so that it can be better ensured that the setting position of the float switch 32 fixed to the mounting seat 31 will not deviate in the height direction, and thus the accuracy requirement of the float switch 32 in the height direction can be better met.

[0053] In addition, the arrangement of placing the mounting seat 31 on the bottom wall 21 of the water receiving tray 20 can also better adapt to different models of heat pump water heaters.

[0054] It should be noted that the water tank assembly of the embodiment of the present application is not limited to use in heat pump water heaters, but can also be used in other types of water heaters (such as electric water heaters) according to specific design requirements.

[0055] In one embodiment, please refer to Figure 2 , Figure 3 and Figure 7 The mounting seat 31 can be provided with a seat body 311 and a connecting plate 312 , the connecting plate 312 is provided on the seat body 311 , the seat body 311 is placed on the bottom wall body 21 , the connecting plate 312 is spaced apart from the bottom wall body 21 , and the supporting body 321 is fixedly connected to the connecting plate 312 .

[0056] That is, the seat body 311 contacts the bottom wall body 21, while the connecting plate 312 is separated from the bottom wall body 21 by a certain distance, and the connecting plate 312 does not contact the bottom wall body 21. The seat body 311 can support the connecting plate 312 to ensure that the supporting body 321 of the float switch 32 can be reliably fixed to the mounting seat 31.

[0057] Figure 3 The connecting plate 312 is shown to be located at the top of the seat body 311 . In other embodiments, the connecting plate 312 may also be located at other positions of the seat body 311 as long as it can be spaced apart from the bottom wall 21 .

[0058] For example, see Figure 3 , Figure 4 and Figure 7 The support body 321 may be provided with a support plate 3212 , and the support plate 3212 is fixedly connected to the connecting plate 312 .

[0059] See also Figure 4 and Figure 7 The support plate 3212 may be provided with a limiting groove 3212a, and the connecting plate 312 may be provided with a plate body 3121 and a limiting portion 3122, and the limiting portion 3122 is inserted into the limiting groove 3212a and fixedly connected to the support plate 3212. The limiting portion 3122 of the connecting plate 312 can play a positioning role for the support plate 3212 by being inserted into the limiting groove 3212a, so that the support plate 3212 can be fixedly connected to the connecting plate 312.

[0060] In one embodiment, please refer to Figure 3 , Figure 6 and Figure 7 , the seat body 311 may be provided with two first mounting plates 3111, which are respectively located on opposite sides of the connecting plate 312 and are both in contact with the bottom wall 21. In other words, the two first mounting plates 3111 are in contact with the bottom wall 21 so that the seat body 311 can be placed on the bottom wall 21. Providing two first mounting plates 3111 can make the seat body 311 have better stability, thereby ensuring that the seat body 311 can be more reliably placed on the bottom wall 21.

[0061] See also Figure 3 and Figure 7The first mounting plate 3111 may be provided with a first flange 3111a formed by folding on a side away from the bottom wall 21. Figure 3 and Figure 7 The two first mounting plates 3111 shown are both provided with the first flange 3111 a . In other embodiments, only one of the first mounting plates 3111 may be provided with the first flange 3111 a . Figure 3 and Figure 7 The first flange 3111a is folded toward the direction in which the two first mounting plates 3111 are close to each other. In other embodiments, the first flange 3111a may also be folded toward the direction in which the two first mounting plates 3111 are separated from each other. The connection plate 312 may be in contact with the first flange 3111a to further improve the reliability of the base 311 supporting the connection plate 312.

[0062] For the mounting base 31 provided with the first fastening hole 31a, the first fastening hole 31a can be provided on the first mounting plate 3111, for example, see Figure 2 , Figure 3 and Figure 7 The first mounting plate 3111 may be provided with a second flange 3111b which is folded in a direction away from the other first mounting plate 3111, and the first fastening hole 31a is provided on the second flange 3111b. Figure 2 , Figure 3 and Figure 7 The two first mounting plates 3111 shown are both provided with the second flange 3111b. In other embodiments, only one of the first mounting plates 3111 may be provided with the second flange 3111b, which is equivalent to only one first mounting plate 3111 being provided with the first fastening hole 31a.

[0063] Please continue reading Figure 3 and Figure 7 The seat body 311 can also be provided with a second mounting plate 3112, the second mounting plate 3112 is located on the side of the connecting plate 312 away from the box body 10, the two first mounting plates 3111 are respectively located on the opposite sides of the second mounting plate 3112, the second mounting plate 3112 is connected to the two first mounting plates 3111 to enclose a accommodating space, and the float 322 is located in the accommodating space.

[0064] The second mounting plate 3112 may be in contact with the bottom wall 21 or may be spaced apart from the bottom wall 21. The second mounting plate 3112 may improve the structural strength of the seat 311 by being connected to the two first mounting plates 3111, so that the seat 311 may have higher stability. In addition, the float 322 may be arranged in the accommodation space, which may also provide better protection for the float 322.

[0065] Please continue reading Figure 3 and Figure 7 The second mounting plate 3112 may be provided with an observation hole 3112a, through which at least a portion of the float 322 is exposed to the external field of view, that is, the float 322 in the accommodating space may be seen from the observation hole 3112a, thereby facilitating observation and confirmation of whether the float switch 32 is actuated.

[0066] The number of the observation holes 3112a may be one or more.

[0067] For example, see Figure 3 For the float switch 32 in which the support body 321 has a guide rod 3211 and the float 322 has a main body 3221 and a sliding part 3222, at least two observation holes 3112a can be provided, and each observation hole 3112a is arranged at intervals in the height direction so that the main body 3221 and the sliding part 3222 are exposed to the external field of vision through the corresponding observation holes 3112a, that is, the main body 3221 can be seen from one observation hole 3112a, and the sliding part 3222 can be seen from another observation hole 3112a. Providing at least two observation holes 3112a can not only observe at least two parts of the float 322 to improve the convenience of observation, but also can better avoid setting the size of one observation hole 3112a too large to affect the structural strength of the second mounting plate 3112.

[0068] In some other embodiments, the seat body 311 may not be provided with the second mounting plate 3112 , or the seat body 311 may only be provided with a first mounting plate 3111 .

[0069] In addition, it should be noted that the seat body 311 is not limited to the structural form described in the above embodiment. According to specific design requirements, the seat body 311 can also adopt other structural forms as long as it can support the connecting plate 312.

[0070] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water tank assembly, characterized in that: include: Box; A water receiving tray, the water receiving tray is arranged at the bottom of the box body along the height direction of the water tank assembly; the water receiving tray comprises a bottom wall body and a side wall body, the side wall body is arranged around the periphery of the bottom wall body, and together with the bottom wall body defines a water receiving groove facing the box body; A water leakage detection device, the water leakage detection device includes a mounting seat and a float switch, the float switch includes a supporting body and a float movably arranged on the supporting body, the mounting seat is placed on the bottom wall body, the supporting body is fixed to the mounting seat, so that the float can be raised and lowered along the height direction.

2. The water tank assembly according to claim 1, characterized in that: The mounting seat is fixedly connected to at least one of the box body and the bottom wall body.

3. The water tank assembly according to claim 1 or 2, characterized in that: The mounting seat is provided with a first fastening hole extending along the height direction; the box body includes a shell provided with a second fastening hole, and the second fastening hole is communicated with the first fastening hole.

4. The water tank assembly according to claim 1 or 2, characterized in that: The mounting seat comprises a seat body and a connecting plate arranged on the seat body, the seat body is placed on the bottom wall body, the connecting plate is spaced apart from the bottom wall body, and the supporting body is fixedly connected to the connecting plate.

5. The water tank assembly according to claim 4, characterized in that: The seat body includes two first mounting plates, which are respectively located on two opposite sides of the connecting plate and are both in contact with the bottom wall body.

6. The water tank assembly according to claim 5, characterized in that: At least one of the first mounting plates has a first flange formed by folding on a side facing away from the bottom wall, and the connecting plate abuts against the first flange; and / or, At least one of the first mounting plates has a second flange folded in a direction away from the other first mounting plate, and the second flange is provided with a first fastening hole extending along the height direction; the box body includes a shell provided with a second fastening hole, and the second fastening hole is connected to the first fastening hole.

7. The water tank assembly according to claim 5, characterized in that: The seat body includes a second mounting plate, the second mounting plate is located on a side of the connecting plate away from the box body, the two first mounting plates are respectively located on opposite sides of the second mounting plate, the second mounting plate is connected to the two first mounting plates to enclose a accommodating space, and the float is located in the accommodating space.

8. The water tank assembly according to claim 7, characterized in that: The second mounting plate is provided with an observation hole, and at least a partial area of ​​the float is exposed to an external field of vision through the observation hole.

9. The water tank assembly according to claim 8, characterized in that: The supporting body includes a guide rod, and the float includes a main body and a sliding part. The sliding part is slidably mounted on the outside of the guide rod, and the main body is located at the bottom of the sliding part along the height direction. The number of the observation holes is at least two, and each of the observation holes is spaced apart along the height direction so that the main body and the sliding part are respectively exposed to the external field of view through the corresponding observation holes.

10. The water tank assembly according to claim 4, characterized in that: The supporting body comprises a supporting plate with a limiting groove, and the connecting plate comprises a plate body and a limiting portion, wherein the limiting portion is inserted into the limiting groove and fixedly connected to the supporting plate.

11. A heat pump water heater, characterized in that: include: A water tank assembly according to any one of claims 1 to 10.

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