Machine head assembly and heat pump water heater

Abstract

The embodiment of the utility model provides a machine head assembly and a heat pump water heater, and the machine head assembly comprises a water receiving disc, a housing, a heat exchanger and an electric control box; the housing is provided with an air inlet and an air outlet, and the housing and the water pan jointly define a containing space. The housing comprises a housing body and a housing cover, and the air inlet is formed in the housing body; the heat exchanger is arranged in the containing space, and a first space communicating with the air inlet and a second space communicating with the air outlet are formed in the two opposite sides of the heat exchanger correspondingly. The electric control box comprises a first box body, a second box body and an electric control board, the second box body is arranged on one side of the first box body in an openable and closable mode, and the element face of the electric control board is located on the side, close to the first box body, of the electric control board. The electric control box is arranged on the side, close to the shell cover, of the containing space and at least partially located in the first space, and the second box body is located on the side, away from the water pan, of the first box body. According to the machine head assembly, the heat dissipation effect of the electric control box can be improved, and ash accumulation on the element area of the electric control board can be well prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat pump, in particular to a machine head assembly and a heat pump water heater. BACKGROUND

[0002] The heat pump water heater is generally divided into split type and integral type. The integral type heat pump water heater is provided with a machine head assembly having a heat exchanger, a compressor, an electric control box and the like on a water tank assembly. The electric control box is provided with electric control boards and the like.

[0003] In the related art, the electric control box is generally placed vertically on a water receiving tray of the machine head assembly and close to the side plate of the heat exchanger. However, the air volume near the side plate of the heat exchanger is small, and the heat dissipation effect of the electric control box is poor. In addition, for the electric control box in this arrangement, there is also a certain risk of dust accumulation on the element area of the electric control board. Utility model content

[0004] Therefore, an embodiment of the present application aims to provide a machine head assembly and a heat pump water heater which can improve the heat dissipation effect of the electric control box and prevent dust accumulation on the element area of the electric control board.

[0005] To achieve the above-mentioned purpose, an embodiment of the present application provides a machine head assembly, comprising:

[0006] a water receiving tray;

[0007] a cover having an air inlet and an air outlet, the cover being arranged on one side of the water receiving tray and surrounding the water receiving tray to form a containing space; wherein the cover comprises a cover body and a cover cap located on the side of the cover body away from the water receiving tray, and the air inlet is arranged on the cover body;

[0008] a heat exchanger, the heat exchanger being arranged in the containing space, and opposite sides of the heat exchanger forming a first space communicated with the air inlet and a second space communicated with the air outlet;

[0009] an electric control box, the electric control box comprising a first box body, a second box body and an electric control board, the second box body being arranged on one side of the first box body in an openable and closable manner, the electric control board being arranged between the first box body and the second box body, and an element surface of the electric control board being located on the side of the electric control board close to the first box body; the electric control box is arranged on the side of the containing space close to the cover cap, and the electric control box is at least partially located in the first space, and the second box body is located on the side of the first box body away from the water receiving tray.

[0010] In an embodiment, the electric control board is arranged in the second box body.

[0011] In one embodiment, the head assembly comprises a compressor arranged in the first space, and the electric control box is arranged between the compressor and the shell cover.

[0012] In one embodiment, the head assembly comprises a support frame arranged in the first space, and the first box body is detachably connected with the support frame.

[0013] In one embodiment, the head assembly comprises a fan wheel support and a fan wheel box arranged in the second space, and the electric control box comprises a mounting plate arranged in the first box body, the mounting plate extends into the second space from between the heat exchanger and the shell cover, and is detachably connected with at least one of the fan wheel support and the fan wheel box.

[0014] In one embodiment, the fan wheel support is arranged in the fan wheel box, one end of the fan wheel support close to the shell cover has a first plug-in part, the fan wheel box has a first avoiding opening avoiding the first plug-in part, the mounting plate has a second plug-in part, and the second plug-in part is plug-in matched with the first plug-in part; or,

[0015] The fan wheel support is arranged in the fan wheel box and supports the fan wheel box, and the mounting plate is detachably connected with the fan wheel box.

[0016] In one embodiment, the first box body has a first length dimension along a first direction and a second length dimension along a second direction perpendicular to the first direction, the first length dimension is greater than the second length dimension, and one side of the first box body along the first direction or the second direction is close to the heat exchanger.

[0017] In one embodiment, the shell cover is detachably connected with the shell body.

[0018] In one embodiment, the electric control box comprises a heat dissipation member arranged on the element surface of the electric control board.

[0019] In one embodiment, the first box body has a second avoiding opening penetrating through the first box body, the heat dissipation member extends out of the first box body through the second avoiding opening, and the part of the heat dissipation member located outside the first box body is located on the airflow path between the air inlet and the heat exchanger.

[0020] Another embodiment of the present application provides a heat pump water heater, comprising a water tank assembly and the above-mentioned head assembly, and the head assembly is arranged on the water tank assembly.

[0021] The machine head assembly provided by the embodiment of the present application sets the air inlet at the shell body of the cover shell, sets the electric control box at the side of the containing space close to the shell cover, and at least part of the electric control box is located in the first space communicated with the air inlet, so that the airflow in the outside world entering the first space can be fully utilized to cool the electric control box, thereby improving the cooling effect of the electric control box. Moreover, since the electric control board of the electric control box is arranged between the first box body and the second box body, and the element surface of the electric control board is located at the side of the electric control board close to the first box body, the second box body of the electric control box is located at the side of the first box body away from the water pan, so that the element surface of the electric control board faces the water pan, thereby better preventing dust from accumulating on the element surface. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic diagram of a heat pump water heater according to an embodiment of the present application;

[0023] Figure 2 FIG. 2 is a structural schematic diagram of a machine head assembly according to an embodiment of the present application; Figure 1

[0024] Figure 3 FIG. 3 is a structural schematic diagram of the machine head assembly omitting the shell cover according to an embodiment of the present application; Figure 2

[0025] Figure 4 FIG. 4 is an exploded view of the machine head assembly according to an embodiment of the present application; Figure 2

[0026] Figure 5 FIG. 5 is another exploded view of the machine head assembly according to an embodiment of the present application; Figure 2

[0027] Figure 6 FIG. 6 is a partial enlarged view of B in FIG. 1. Figure 5

[0028] Figure 7 FIG. 7 is an A-A sectional view of FIG. 1. Figure 2

[0029] Figure 8 FIG. 8 is a partial enlarged view of C in FIG. 1. Figure 7

[0030] REFERENCE SIGNS

[0031] ​​​​​​​10, head assembly; 10a, containing space; 10a1, first space; 10a2, second space; 11, water pan; 12, cover shell; 12a, air inlet; 12b, air outlet; 121, shell body; 122, shell cover; 13, electric control box; 131, first box body; 131a, second avoiding opening; 132, second box body; 133, electric control board; 134, heat dissipation piece; 135, mounting plate; 135a, second plug-in part; 14, heat exchanger; 15, compressor; 16, support frame; 17, wind wheel support; 17a, first plug-in part; 18, wind wheel box; 18a, air outlet; 20, water tank assembly. DETAILED DESCRIPTION

[0032] In the description of the embodiments of the present application, it should be noted that the term "height direction" is based on the orientation or positional relationship shown in the drawings, and the terms "first direction" and "second direction" are based on the orientation or positional relationship shown in the drawings. These orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Figure 1 Figure 3 The orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0033] An embodiment of the present application provides a head assembly 10, please refer to Figures 1 to 5 The head assembly 10 includes a water pan 11, a cover shell 12, a heat exchanger 14 and an electric control box 13.

[0034] The cover shell 12 has an air inlet 12a and an air outlet 12b, the cover shell 12 is arranged on one side of the water pan 11, and the cover shell 12 and the water pan 11 together enclose a containing space 10a. Among them, the cover shell 12 includes a shell body 121 and a shell cover 122 located on the side of the shell body 121 away from the water pan 11, and the air inlet 12a is arranged on the shell body 121. The air outlet 12b can be arranged on the shell body 121 or the shell cover 122.

[0035] The heat exchanger 14 is arranged in the containing space 10a, and opposite sides of the heat exchanger 14 form a first space 10a1 and a second space 10a2 in communication with the air inlet 12a and the air outlet 12b, respectively.

[0036] The water pan 11 is used to collect the condensed water dripping from the heat exchanger 14.

[0037] The first space 10a1 and the second space 10a2 are both part of the containing space 10a.

[0038] Please refer to Figure 5 and Figure 7 ​The head assembly 10 is further provided with a compressor 15 arranged in the first space 10a1 and a fan wheel arranged in the second space 10a2. The fan wheel drives the air flow from the air inlet 12a into the first space 10a1 in the working state, and the air flow enters the second space 10a2 after heat exchange at the heat exchanger 14 and then flows out from the air outlet 12b.

[0039] Please continue to refer to Figure 5 and Figure 8 The electric control box 13 includes a first box body 131, a second box body 132 and an electric control board 133. The second box body 132 is arranged on one side of the first box body 131 in an openable and closable manner, that is, the second box body 132 can be opened and closed.

[0040] The electric control board 133 is arranged between the first box body 131 and the second box body 132, and the element face of the electric control board 133 is located on the side of the electric control board 133 close to the first box body 131.

[0041] The element face of the electric control board 133 is the side on which electronic components are mounted on the electric control board 133.

[0042] Please continue to refer to Figure 4 、 Figure 5 、 Figure 7 and Figure 8 The electric control box 13 is arranged on the side of the containing space 10a close to the shell cover 122, that is, the electric control box 13 is arranged in a spaced manner with the water pan 11, and the distance between the electric control box 13 and the water pan 11 is greater than the distance between the electric control box 13 and the shell cover 122 of the shell 12.

[0043] Please refer to Figure 3 The first box body 131 has a first length dimension along a first direction and a second length dimension along a second direction perpendicular to the first direction (both the first direction and the second direction are the directions of the electric control box itself). For the first box body 131 with the first length dimension greater than the second length dimension, in order to facilitate the placement of the electric control box 13, the first box body 131 can be arranged in a manner that the side of the first box body 131 along the first direction is close to the heat exchanger 14 (for example Figure 4 and Figure 5 ), or the first box body 131 can be arranged in a manner that the side of the first box body 131 along the second direction is close to the heat exchanger 14, that is, the side of the first box body 131 with a longer dimension can be close to the heat exchanger 14, or the side of the first box body 131 with a shorter dimension can be close to the heat exchanger 14.

[0044] Please refer to Figure 5 and Figure 7 The electric control box 13 is at least partially located in the first space 10a1. The electric control box 13 can only have part of the structure located in the first space 10a1, or the electric control box 13 can be entirely located in the first space 10a1.

[0045] The second box body 132 is located on the side of the first box body 131 away from the water tray 11, and the element surface of the electric control board 133 faces the water tray 11.

[0046] Another embodiment of the present application provides a heat pump water heater, which comprises a water tank assembly 20 and the head assembly 10 provided by any of the embodiments of the present application, and the head assembly 10 is arranged on the water tank assembly 20. Figure 1

[0047] The head assembly 10 is generally arranged at the top of the water tank assembly 20 in the height direction, and in other embodiments, the head assembly 10 can also be arranged at other positions of the water tank assembly 20.

[0048] The water tank assembly 20 has an outer shell, an inner container and a water tank heat exchanger arranged in the outer shell, the inner container is used to store domestic water, and the water tank heat exchanger can heat the domestic water in the inner container into hot water through heat exchange with the heat exchanger 14 in the head assembly 10.

[0049] The head assembly 10 of the embodiment of the present application can fully utilize the airflow from the outside into the first space 10a1 to cool the electric control box 13 while ensuring that the electric control box 13 can avoid the air inlet 12a as much as possible, thereby improving the cooling effect of the electric control box 13. Because the electric control board 133 of the electric control box 13 is arranged between the first box body 131 and the second box body 132, and the element surface of the electric control board 133 is located on the side of the electric control board 133 close to the first box body 131, the second box body 132 of the electric control box 13 is located on the side of the first box body 131 away from the water tray 11, so that the element surface of the electric control board 133 faces the water tray 11, thereby better preventing dust from accumulating on the element surface.

[0050] In an embodiment, referring to Figure 5 and Figure 8 , the electric control board 133 can be arranged in the second box body 132. That is, the electric control board 133 is fixed to the second box body 132, and after the second box body 132 is opened, the electric control board 133 is located in the second box body 132, and after the second box body 132 is closed, the element surface of the electric control board 133 faces the first box body 131.

[0051] ​Since the element surface of the electric control board 133 is located at the side of the electric control board 133 close to the first box body 131, the electric control board 133 is arranged in the second box body 132, so that when the electronic components on the electric control board 133 need to be repaired, the second box body 132 only needs to be opened, and the electronic components on the element surface of the electric control board 133 can be exposed, without the need to disassemble the electric control board 133, thereby improving the convenience of repairing the electronic components.

[0052] In other embodiments, the electric control board 133 can also be arranged in the first box body 131, that is, the electric control board 133 is located in the first box body 131 after the second box body 132 is opened.

[0053] In an embodiment, as shown in Figures 2 to 4 , the shell cover 122 can be detachably connected with the shell body 121, that is, the shell cover 122 can be separately taken off from the shell body 121.

[0054] Since the electric control box 13 is arranged close to the shell cover 122, during the repair of the electric control box 13, the repairer only needs to separately disassemble the shell cover 122, without disassembling the shell body 121, so that the electric control box 13 can be repaired, thereby improving the convenience of repairing the electric control box 13.

[0055] In other embodiments, the shell cover 122 can also be non-detachably connected with the shell body 121, that is, the repairer needs to disassemble the entire shell 12 to repair the electric control box 13.

[0056] In an embodiment, as shown in Figure 5 and Figure 7 , the electric control box 13 can be arranged between the compressor 15 and the shell cover 122, that is, the space between the compressor 15 and the shell cover 122 can be fully utilized to accommodate the electric control box 13.

[0057] In an embodiment, as shown in Figure 5 and Figure 7 , the head assembly 10 can be provided with a support frame 16 in the first space 10a1, and the first box body 131 can be detachably connected with the support frame 16, for example, the first box body 131 can be inserted, clamped, or fastened with screws or other fasteners to be connected with the support frame 16.

[0058] Please continue to refer to Figure 5 and Figure 7The nose assembly 10 can further be provided with a wind wheel support 17 and a wind wheel box 18 in the second space 10a2, and the wind wheel support 17 and the wind wheel box 18 are used to mount the wind wheel. Specifically, the wind wheel box 18 has an air outlet 18a, the wind wheel is mounted on the wind wheel support 17, the wind wheel box 18 covers the circumferential side of the wind wheel, and the air outlet 18a faces the air outlet 12b. The air flow entering the second space 10a2 can flow in the wind wheel box 18 and flow from the air outlet 18a to the air outlet 12b.

[0059] Please refer to Figures 4 to 6 The electric control box 13 includes a mounting plate 135 provided on the first box body 131, the mounting plate 135 can extend into the second space 10a2 from between the heat exchanger 14 and the shell cover 122, and is detachably connected with at least one of the wind wheel support 17 and the wind wheel box 18. That is, the mounting plate 135 can be detachably connected with only the wind wheel support 17, or only the wind wheel box 18, or both the wind wheel support 17 and the wind wheel box 18.

[0060] The detachable connection between the mounting plate 135 and at least one of the wind wheel support 17 and the wind wheel box 18 can be plug-in connection, clamping connection, fastening connection, etc.

[0061] Exemplarily, please refer to Figures 3 to 6 The wind wheel support 17 is provided in the wind wheel box 18, and the end of the wind wheel support 17 close to the shell cover 122 can be provided with a first plug-in part 17a, the wind wheel box 18 has a first avoiding opening avoiding the first plug-in part 17a, the mounting plate 135 can be provided with a second plug-in part 135a, and the second plug-in part 135a is plug-in matched with the first plug-in part 17a.

[0062] Figure 6 In the above embodiment, the first plug-in part 17a is a plug-in piece, and the second plug-in part 135a is a plug-in hole. In other embodiments, the first plug-in part 17a can be a plug-in hole, and the second plug-in part 135a can be a plug-in piece, which is inserted into the plug-in hole to realize plug-in matching.

[0063] Exemplarily, the wind wheel support 17 can also be provided in the wind wheel box 18 and support the wind wheel box 18, and the mounting plate 135 is detachably connected with the wind wheel box 18, that is, the mounting plate 135 is only detachably connected with the wind wheel box 18 and is not detachably connected with the wind wheel support 17. However, the wind wheel support 17 can provide support force for the wind wheel box 18, so as to also improve the reliability of the detachable connection between the mounting plate 135 and the wind wheel box 18.

[0064] The connection between the first box body 131 and the support frame 16, and the connection between the mounting plate 135 of the electric control box 13 and at least one of the wind wheel support 17 and the wind wheel box 18 can further improve the stability of the installation of the electric control box 13.

[0065] In an embodiment, referring to Figure 5 and Figure 8 , the electric control box 13 can be provided with a heat dissipation member 134, which is arranged on the element side of the electric control board 133, that is, the heat dissipation member 134 is arranged on the side of the electric control board 133 away from the second box body 132, or in other words, the heat dissipation member 134 is arranged on the same side of the electric control board 133 as the electronic components.

[0066] The heat dissipation member 134 is used to dissipate heat from the electric control board 133.

[0067] In order to achieve better heat dissipation effect, referring to Figure 8 , the first box body 131 can be provided with a second avoiding opening 131a penetrating the first box body 131, and the heat dissipation member 134 can extend out of the first box body 131 through the second avoiding opening 131a, so that the heat can be quickly transferred to the outside of the electric control box 13.

[0068] In the related art, the heat dissipation member is generally arranged on the side of the electric control board away from the element side, that is, the heat dissipation member and the electronic components are respectively arranged on opposite sides of the electric control board. However, this arrangement requires the electric control board to be made into a double-sided board, which has a long production cycle and high cost.

[0069] In the present embodiment, the heat dissipation member 134 is arranged on the element side of the electric control board 133, so that the electric control board 133 can be made into a single-sided board, thereby not only improving the production efficiency of the electric control board 133, but also reducing the production cost of the electric control box 13.

[0070] In addition, for the heat dissipation member 134 extending out of the first box body 131 through the second avoiding opening 131a, the part of the heat dissipation member 134 located outside the first box body 131 can also be located on the airflow path between the air inlet 12a and the heat exchanger 14, that is, part of the airflow first flows through the heat dissipation member 134 and then flows to the heat exchanger 14. The airflow flowing through the heat dissipation member 134 transfers the heat of the heat dissipation member 134 to the heat exchanger 14, thereby also being conducive to improving the energy efficiency of the heat pump water heater.

[0071] In the description of the application, the description of the terms "in an embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. means that the particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily referring to the same embodiment or example. Moreover, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. Furthermore, the application can be implemented in any suitable combination of hardware and / or software for any real or theoretical computer system dependent on the particular needs and requirements of the application being implemented. Moreover, the different embodiments or examples of the application can be combined with each other and / or combined with the features of the different embodiments or examples without departing from the scope of the application.

[0072] The above description is merely illustrative of the application, and is not intended to limit the application. The application can be modified and varied in various ways without departing from the spirit and scope of the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the scope of the application.

Claims

1. A head assembly, characterized in that: The application relates to a water tank assembly and a head assembly. The water tank assembly comprises: a water tank; a cover shell with an air inlet and an air outlet, the cover shell being arranged on one side of the water tank and jointly surrounding a containing space with the water tank; wherein the cover shell comprises a shell body and a shell cover arranged on the side of the shell body away from the water tank, and the air inlet is arranged on the shell body; a heat exchanger arranged in the containing space, and opposite sides of the heat exchanger respectively form a first space communicated with the air inlet and a second space communicated with the air outlet; 2. The nose assembly of claim 1, wherein, an electric control box comprising a first box body, a second box body and an electric control board, the second box body being arranged on one side of the first box body in a detachable manner, the electric control board being arranged between the first box body and the second box body, and an element surface of the electric control board being arranged on the side of the electric control board close to the first box body; the electric control box is arranged on the side of the containing space close to the shell cover, and the electric control box is at least partially arranged in the first space, and the second box body is arranged on the side of the first box body away from the water tank.

3. The nose assembly of claim 1 or 2, wherein, The electric control board is arranged in the second box body.

4. The nose assembly of claim 1 or 2, wherein, The head assembly comprises a compressor arranged in the first space, and the electric control box is arranged between the compressor and the shell cover.

5. The nose assembly of claim 4, wherein, The head assembly comprises a support frame arranged in the first space, and the first box body and the support frame are detachably connected.

6. The handpiece assembly of claim 5, wherein, The head assembly comprises a fan wheel support and a fan wheel box arranged in the second space, the electric control box comprises a mounting plate arranged in the first box body, the mounting plate extends into the second space from between the heat exchanger and the shell cover, and the mounting plate is detachably connected with at least one of the fan wheel support and the fan wheel box. The fan wheel support is arranged in the fan wheel box, one end of the fan wheel support close to the shell cover is provided with a first plug-in part, the fan wheel box is provided with a first avoiding opening avoiding the first plug-in part, the mounting plate is provided with a second plug-in part, and the second plug-in part is plug-in matched with the first plug-in part; or, 7. The handpiece assembly of claim 1 or 2, wherein, The fan wheel support is arranged in the fan wheel box and supports the fan wheel box, and the mounting plate is detachably connected with the fan wheel box.

8. The handpiece assembly of claim 1 or 2, wherein, The first box body has a first length dimension along a first direction and a second length dimension along a second direction perpendicular to the first direction, the first length dimension is greater than the second length dimension, and one side of the first box body along the first direction or the second direction is close to the heat exchanger.

9. The handpiece assembly of claim 1 or 2, wherein, The shell cover and the shell body are detachably connected.

10. The handpiece assembly of claim 9, wherein, The electric control box comprises a heat dissipation member arranged on the element surface of the electric control board.

11. A heat pump water heater, characterized by, The first box body is provided with a second avoiding opening penetrating through the first box body, the heat dissipation member extends to the outside of the first box body through the second avoiding opening, and the part of the heat dissipation member located outside the first box body is located on an air flow path between the air inlet and the heat exchanger. The water tank assembly comprises a water tank assembly and the head assembly of any one of claims 1-10, and the head assembly is arranged on the water tank assembly.

Images