Electric control box, machine head assembly and heat pump water heater

Abstract

The embodiment of the utility model provides an electric control box, a machine head assembly and a heat pump water heater, and the electric control box comprises a first box body, an electric control board, a heat dissipation piece and a second box body; the first box body is provided with a containing cavity, and one side of the containing cavity is provided with an opening. The electric control board is arranged in the accommodating cavity, an element surface of the electric control board is exposed at the opening, and the element surface comprises a first area and a second area which are arranged along a first direction; the heat dissipation piece is arranged in the first area of the element surface; the second box body covers the opening and comprises a first shell and a second shell capable of being opened and closed, the first shell corresponds to the first area, the second shell corresponds to the second area, the first shell is arranged on the peripheral side of the heat dissipation piece in a sleeving mode, and the second shell is opened and closed to avoid or shield the second area of the element face. The electric control box provided by the embodiment of the utility model is convenient to maintain, and the height size of the machine head assembly is not too high.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an electric control box, a head assembly and a heat pump water heater. Background Art

[0002] Heat pump water heaters are generally categorized as split or integrated. Integrated heat pump water heaters feature a head assembly (including a housing, heat exchanger, compressor, and electrical control box) mounted on a water tank assembly. The heat exchanger, compressor, and electrical control box are housed within the housing. The electrical control box houses the electronic control board, which some also incorporate heat sinks to dissipate heat.

[0003] In the related art, there are two main ways to inspect the electric control board in the electric control box. One is to remove the cover first and then inspect the electric control board in the electric control box. The other is to set a avoidance opening on the side wall of the cover and open the cover of the electric control box from the avoidance opening to inspect the electric control board.

[0004] However, for the first maintenance method, since the size of the head assembly is generally large, the weight of the cover is heavy, and the height of the heat pump water heater is high, it usually requires two people to cooperate when removing the cover, and they need to stand on top of tools such as steps or ladders to complete the disassembly operation, which makes the maintenance of the electric control board relatively difficult. Although the second maintenance method reduces the difficulty of maintenance, for the electric control board equipped with heat dissipation parts, the overall size of the electric control board is larger, so the size of the avoidance is also larger. In order to ensure that the cover has sufficient strength on the upper and lower sides of the avoidance, the height of the cover needs to be increased, which leads to a corresponding increase in the overall height of the heat pump water heater. This not only increases the material cost and transportation cost of the heat pump water heater, but also makes some heat pump water heaters no longer meet the product height requirements of the installation scenario after being raised. Utility Model Content

[0005] In view of this, the embodiments of the present application hope to provide an electrical control box, a head assembly and a heat pump water heater that are easy to maintain and do not cause the height of the head assembly to be too high.

[0006] To achieve the above objectives, an embodiment of the present application provides an electric control box, comprising:

[0007] A first box body having a receiving cavity, wherein one side of the receiving cavity has an opening;

[0008] an electric control board, the electric control board being disposed in the accommodating cavity, with a component surface of the electric control board exposed at the opening, wherein the component surface includes a first area and a second area arranged along a first direction;

[0009] a heat sink disposed in the first region of the component surface;

[0010] The second box body is covered at the opening, and the second box body includes a first shell and an openable and closable second shell. The first shell corresponds to the first area, and the second shell corresponds to the second area. The first shell is sleeved on the outer peripheral side of the heat sink, and the second shell is opened and closed to avoid or block the second area of ​​the component surface.

[0011] In one embodiment, when the second shell is in a closed state, the second shell abuts against a side of the first shell facing away from the electric control board.

[0012] In one embodiment, one of the first shell and the second shell has a first plug-in slot, and the other has a first rib. When the second shell is in a closed state, the first rib is plugged into and fitted with the first plug-in slot.

[0013] In one embodiment, the heat sink includes a heat sink body and a boss provided on an outer peripheral side of the heat sink body, and the first shell is sleeved on the heat sink body and abuts against the boss.

[0014] In one embodiment, the first shell is detachably connected to the first box body.

[0015] In one embodiment, the first shell includes a main body and a mounting portion, the side of the main body close to the second area along the first direction is the first side of the main body along the circumferential direction, the mounting portion is arranged on the outer peripheral side of the main body along the circumferential direction and avoids the first side, the main body is sleeved on the outer peripheral side of the heat sink, and the mounting portion is detachably connected to the first box body.

[0016] In one embodiment, one of the first shell and the first box body has a second plug-in slot, and the other has a second rib, and the second rib is plugged into and fits with the second plug-in slot.

[0017] In one embodiment, the second shell has an air duct and an air inlet, an air outlet and an installation port respectively connected to the air duct, the electrical control box includes an inductor component arranged in the second area of ​​the component surface, the inductor component includes an inductor element electrically connected to the electrical control board, and at least part of the structure of the inductor element extends into the air duct from the installation port.

[0018] In one embodiment, the air inlet faces the heat sink; and / or,

[0019] The air outlet is located on a side of the inductor component away from the electric control board.

[0020] Another embodiment of the present application provides a head assembly, comprising:

[0021] water tray;

[0022] a cover shell provided on one side of the water receiving tray, the cover shell comprising a shell cover and a shell body, the shell cover being provided on a side of the shell body away from the water receiving tray;

[0023] The electric control box described above is arranged in the cover;

[0024] The shell body is provided with an avoidance opening, the second box body is located between the avoidance opening and the first box body, the avoidance opening avoids the second shell body and is at least partially staggered with the first shell body.

[0025] In one embodiment, the head assembly includes a wire controller assembly, and the wire controller assembly is covered at the avoidance opening and is electrically connected to the electric control board.

[0026] In one embodiment, the shell body has an air outlet, and the air outlet faces the heat dissipation element.

[0027] In one embodiment, a side of the heat sink close to the air outlet and a side away from the air outlet are opposite sides of the heat sink along a second direction perpendicular to the first direction, and the heat sink includes a plurality of heat sinks, which are spaced apart along a third direction, wherein the third direction is perpendicular to the first direction and the second direction respectively.

[0028] Yet another embodiment of the present application provides a heat pump water heater, comprising a water tank assembly and the aforementioned head assembly, wherein the head assembly is disposed on the water tank assembly.

[0029] An embodiment of the present application provides an electric control board, a head assembly and a heat pump water heater, wherein the component surface of the electric control board of the electric control box includes a first area and a second area. At the same time, the electric control box is provided with a heat sink and a second box body having a first shell and an openable and closable second shell. The first shell corresponds to the first area, and the second shell corresponds to the second area. Since the heat sink generally does not require maintenance, the heat sink is set in the first area of ​​the component surface of the electric control board, and the first shell is mounted on the outer peripheral side of the heat sink to protect the first area. When the electric control board needs to be repaired, it is only necessary to open the second shell to repair the second area of ​​the component surface of the electric control board without opening the first shell. For the head assembly provided with such an electric control box, the head assembly can provide an avoidance opening on the shell body of the cover, and the avoidance opening avoids the second shell and is at least partially offset from the first shell. In other words, the size of the avoidance opening only needs to ensure that the second shell can be opened at the avoidance opening, without considering the first shell. Therefore, the size of the avoidance opening can be minimized, which can facilitate the inspection and maintenance of the electric control board and ensure that the cover has sufficient strength without increasing the height of the head assembly as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 An exploded view of a nose assembly according to an embodiment of the present application;

[0031] Figure 2 for Figure 1 The structural diagram of the nose assembly shown;

[0032] Figure 3 This is a schematic structural diagram of another head assembly according to an embodiment of the present application;

[0033] Figure 4 for Figure 3 AA section view;

[0034] Figure 5 for Figure 3 a cutaway view of the handpiece assembly shown;

[0035] Figure 6 for Figure 1 The structural diagram of the electric control box shown;

[0036] Figure 7 for Figure 6 BB cross-sectional view;

[0037] Figure 8 for Figure 7 A partial enlarged view of point E in the middle;

[0038] Figure 9 for Figure 6 CC cross-sectional view;

[0039] Figure 10 for Figure 6 DD cross-sectional view;

[0040] Figure 11 for Figure 1 The schematic diagram of the structure of the electric control box shown in the figure omits the second shell;

[0041] Figure 12 for Figure 3 The structural diagram of the electric control box shown;

[0042] Figure 13 for Figure 12 FF cross-sectional view.

[0043] Description of reference numerals:

[0044] 10. Electric control box; 11. First box body; 11a. Accommodation cavity; 11a1. Opening; 111. Second rib; 12. Electric control board; 12a. Component surface; 12a1. First area; 12a2. Second area; 13. Heat sink; 131. Heat sink body; 132. Boss; 133. Heat sink; 14. Second box body; 141. First housing; 141a. Second insertion slot; 1411. First rib; 1412. Main Body; 1413, mounting portion; 142, second shell; 142a, first plug-in slot; 142b, air duct; 142c, air inlet; 142d, air outlet; 15, inductor assembly; 151, inductor element; 20, water tray; 30, cover; 31, shell cover; 32, shell body; 32a, avoidance port; 32b, air vent; 32c, air flow inlet; 32d, air flow outlet; 40, wired controller assembly; 50, heat exchanger. DETAILED DESCRIPTION

[0045] In the description of the embodiments of the present application, it should be noted that the terms "first direction" and "second direction" are based on the attached Figure 7 The orientation or position relationship shown in the figure is based on the Figure 9 These directional terms are only used to facilitate the description of the embodiments of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application.

[0046] The present application embodiment provides a head assembly, see Figures 1 to 5 The head assembly includes an electric control box 10, a water receiving tray 20, and a cover shell 30.

[0047] The housing 30 is disposed on one side of the water receiving tray 20. The housing 30 includes a housing cover 31 and a housing body 32. The housing cover 31 is disposed on a side of the housing body 32 away from the water receiving tray 20. The electric control box 10 is disposed in the housing 30.

[0048] See also Figure 1 、 Figures 5 to 13 The electric control box 10 of the embodiment of the present application includes a first box body 11 , an electric control board 12 , a heat sink 13 and a second box body 14 .

[0049] The first housing 11 has a housing cavity 11a with an opening 11a1 on one side. An electronic control board 12 is disposed within the housing cavity 11a, with its component surface 12a exposed at the opening 11a1. In other words, the component surface 12a faces the opening 11a1 of the housing cavity 11a. The component surface 12a includes a first region 12a1 and a second region 12a2 arranged along a first direction. A heat sink 13 is disposed in the first region 12a1 of the component surface 12a.

[0050] The accommodating chamber 11a is used to accommodate the electric control board 12. The opening 11a1 is used to place the electric control board 12 into the accommodating chamber 11a.

[0051] The component surface 12a of the electric control board 12 is the surface on which electronic components are mounted. Exposing the component surface 12a of the electric control board 12 at the opening 11a1 facilitates maintenance personnel to inspect the electric control board 12 through the opening 11a1.

[0052] The heat sink 13 is used to dissipate heat for the electric control board 12. The heat sink 13 is provided on the electric control board 12 so that the heat generated by the electric control board 12 can be transferred to the heat sink 13.

[0053] See also Figure 1 、 Figures 5 to 13 The second housing 14 includes a first housing 141 and an openable and closable second housing 142. The first housing 141 corresponds to the first area 12a1, and the second housing 142 corresponds to the second area 12a2. The first housing 141 is sleeved around the outer periphery of the heat sink 13. In other words, the first housing 141 and the second housing 142 are arranged along the first direction. The second housing 142 opens and closes to avoid or block the second area 12a2 of the component surface 12a.

[0054] The first housing 141 is used to protect the first area 12a1 of the component surface 12a of the electronic control board 12 and also to secure the heat sink 13. The first housing 141 is sleeved around the outer periphery of the heat sink 13, allowing the heat sink 13 to extend from the first housing 141 to the electronic control box 10 to dissipate heat, thereby improving the heat dissipation effect of the heat sink 13.

[0055] The second housing 142 is used to protect the second area 12a2 of the component surface 12a of the electric control board 12. After the second housing 142 is opened, the second area 12a2 can be inspected and maintained.

[0056] It should be noted that since the probability of damage to the heat sink 13 is low, the heat sink 13 generally does not require maintenance. Therefore, in general, it is only necessary to open the second shell 142 to inspect the second area 12a2 of the electronic control board 12 without opening the first shell 141.

[0057] Please continue reading Figure 2 、 Figure 4 and Figure 5 The housing 30 is disposed on one side of the water receiving tray 20. The housing 30 includes a housing cover 31 and a housing body 32. The housing cover 31 is disposed on a side of the housing body 32 away from the water receiving tray 20. The electric control box 10 is disposed in the housing 30.

[0058] The housing 32 is provided with an escape opening 32 a . The second box body 14 is located between the escape opening 32 a and the first box body 11 . The escape opening 32 a avoids the second shell 142 and is at least partially offset from the first shell 141 .

[0059] The avoidance opening 32a is used for maintenance personnel to repair the electric control box 10. That is, the maintenance personnel can directly remove the second shell 142 from the avoidance opening 32a, so that the second area 12a2 of the component surface 12a of the electric control board 12 is exposed at the avoidance opening 32a, so as to facilitate the maintenance personnel to repair the second area 12a2.

[0060] See also Figure 2 The avoidance opening 32a is at least partially offset from the first shell 141. That is to say, on the projection plane perpendicular to the penetration direction of the avoidance opening 32a through the cover shell 30, at least part of the projection of the first shell 141 is located outside the projection area of ​​the avoidance opening 32a. In other words, the projection area of ​​the avoidance opening 32a is smaller than the sum of the projection area of ​​the first shell 141 and the projection area of ​​the second shell 142. At least part of the structure of the first shell 141 is not exposed at the avoidance opening 32a, which is equivalent to the cover shell 30 blocking at least part of the area of ​​the first shell 141.

[0061] See also Figures 1 to 4 The head assembly is generally provided with a wire controller assembly 40 , which can be covered at the avoidance opening 32 a and electrically connected to the electric control board 12 .

[0062] The wired controller assembly 40 is used for user input of adjustment commands. When the user operates the wired controller assembly 40, the corresponding commands are transmitted to the electronic control board 12, which then performs specific control actions based on the received signals. By placing the wired controller assembly 40 over the clearance opening 32a, the clearance opening 32a is shielded and wiring between the wired controller assembly 40 and the electronic control board 12 is facilitated.

[0063] It is understandable that when repairing the electric control board 12 , it is necessary to first remove the wire controller assembly 40 and then remove the second housing 142 before repairing the electric control board 12 .

[0064] In other embodiments, the wire controller assembly 40 may not be provided at the avoidance opening 32 a . For example, a protective cover may be provided at the avoidance opening 32 a to shield the avoidance opening 32 a .

[0065] See also Figure 1 The housing 30 has an air inlet 32c and an air outlet 32d. In addition to the electrical control box 10, the housing 30 also contains components such as the heat exchanger 50, a compressor, and a blower assembly. When the blower assembly is operating, air from the outside enters the housing 30 through the air inlet 32c, exchanges heat with the heat exchanger 50, and then flows out through the air outlet 32d.

[0066] An embodiment of the present application also provides a heat pump water heater, which includes a water tank assembly and a head assembly provided by any embodiment of the present application. The head assembly is arranged on the water tank assembly, that is, this heat pump water heater is an integrated heat pump water heater.

[0067] The head assembly is generally arranged at the top of the water tank assembly along the height direction. In other embodiments, the head assembly can also be arranged at other positions of the water tank assembly.

[0068] The water tank assembly has an outer shell and an inner tank and a water tank heat exchanger arranged in the outer shell. The inner tank is used to store domestic water. The water tank heat exchanger can heat the domestic water in the inner tank into hot water by exchanging heat with the heat exchanger 50 in the head assembly.

[0069] For the electrical control box 10 of the embodiment of the present application, the component surface 12a of the electrical control board 12 includes a first area 12a1 and a second area 12a2. At the same time, a second box body 14 having a first shell 141 and an openable and closable second shell 142 is provided. The first shell 141 corresponds to the first area 12a1, and the second shell 142 corresponds to the second area 12a2. Since the heat sink 13 generally does not require maintenance, the heat sink 13 is provided in the first area 12a1 of the component surface 12a of the electrical control board 12, and the first shell 141 is sleeved on the outer peripheral side of the heat sink 13, which can protect the first area 12a1. When the electrical control board 12 needs to be repaired, it is only necessary to open the second shell 142 to repair the second area 12a2 of the component surface 12a of the electrical control board 12 without opening the first shell 141. As for the head assembly provided with such an electric control box 10, the head assembly can be provided with a avoidance opening 32a on the shell body 32 of the cover shell 30. The avoidance opening 32a avoids the second shell 142 and is at least partially offset from the first shell 141. That is to say, the size of the avoidance opening 32a only needs to ensure that the second shell 142 can be opened at the avoidance opening 32a, without considering the first shell 141. Therefore, the size of the avoidance opening 32a can be minimized, which can facilitate the inspection and maintenance of the electric control board 12 and ensure that the cover shell 30 has sufficient strength without increasing the height of the head assembly as much as possible.

[0070] It should be noted that the electrical control box 10 of the embodiment of the present application is not limited to use in an integral heat pump water heater. The electrical control box 10 can also be used in a split heat pump water heater (a split heat pump water heater has an independent heat pump external unit, and the electrical control box 10 is arranged in the heat pump external unit) and any other electrical equipment that requires the use of the electrical control box 10.

[0071] In one embodiment, please refer to Figure 7 and Figure 8 、 Figure 13 When the second housing 142 is in the closed state, the second housing 142 can abut against the side of the first housing 141 facing away from the electric control board 12. In other words, the second housing 142 is located on the side of the first housing 141 facing away from the electric control board 12. When the second housing 142 covers the second area 12a2, the second housing 142 exerts a certain pressure on the first housing 141 to enhance the installation stability of the first housing 141.

[0072] See also Figure 8 The first shell 141 may be provided with a first rib 1411 , and the second shell 142 may be provided with a first insertion groove 142 a . When the second shell 142 is in a closed state, the first rib 1411 is plugged into and matched with the first insertion groove 142 a .

[0073] By engaging the first rib 1411 with the first insertion groove 142a, not only can the first housing 141 and the second housing 142 be detachably connected, but the second housing 142 can also be positioned when installing the second housing 142 after maintenance is completed, thereby facilitating the installation of the second housing 142. In addition, the engagement between the first insertion groove 142a and the first rib 1411 provides a certain sealing effect, preventing condensed water, refrigerant, etc. from entering the electric control box 10.

[0074] In another embodiment, the second shell 142 may be provided with a first rib 1411 , and the first shell 141 may be provided with a first inserting groove 142 a .

[0075] In one embodiment, please refer to Figure 8 The heat sink 13 may include a heat sink body 131 and a boss 132 disposed on the outer periphery of the heat sink body 131 . The first shell 141 is sleeved on the heat sink body 131 and abuts against the boss 132 .

[0076] Since the first housing 141 is located on the side of the boss 132 away from the electronic control board 12 , the first housing 141 can apply a certain pressure to the boss 132 so that the heat sink 13 can be fixed on the electronic control board 12 more stably.

[0077] In one embodiment, please refer to Figure 10 The first housing 141 is detachably connected to the first housing 11. In other words, the first housing 141 can also be removed from the first housing 11. During disassembly of the electric control box 10, the second housing 142 is first opened, and then the first housing 141 is removed. The electric control board 12 and the heat sink 13 can then be removed from the first housing 11.

[0078] For example, see Figure 7 and Figure 10 The first housing 141 may include a main body 1412 and a mounting portion 1413. For ease of description, the side of the main body 1412 that is closer to the second area 12a2 along the first direction may be referred to as the first circumferential side of the main body 1412. The mounting portion 1413 is circumferentially disposed on the outer circumference of the main body 1412 and avoids the first side. In other words, the first side of the main body 1412 does not have a mounting portion 1413. The main body 1412 is sleeved on the outer circumference of the heat sink 13, and the mounting portion 1413 is detachably connected to the first housing 11. In other words, except for the first side, all other sides of the main body 1412 are detachably connected to the first housing 11 via the mounting portion 1413, thereby improving the installation stability of the first housing 141.

[0079] See also Figure 10The first shell 141 may be provided with a second insertion groove 141 a , and the first box body 11 may be provided with a second rib 111 . The second rib 111 is plugged into and matched with the second insertion groove 141 a , which may facilitate the installation of the first shell 141 .

[0080] In another embodiment, the first shell 141 may be provided with a second rib 111 , and the first box body 11 may be provided with a second inserting groove 141 a .

[0081] For an embodiment in which the first shell 141 may include a main body 1412 and an installation portion 1413, the second plug-in slot 141a may be provided on the installation portion 1413, that is, the first shell 141 has second plug-in slots 141a on all sides except the first side, and the first box body 11 has a second rib 111 corresponding to the second plug-in slot 141a, thereby further improving the installation stability of the first shell 141.

[0082] Similar to the first shell 141 , one of the second shell 142 and the first box body 11 may be provided with a third plugging slot, and the other may be provided with a third rib, which is plugged into and matched with the third plugging slot to facilitate the installation of the second shell 142 .

[0083] In one embodiment, please refer to Figure 3 and Figure 5 The shell body 32 of the cover shell 30 may be provided with an air outlet 32 ​​b, and the air outlet 32 ​​b faces the heat sink 13 .

[0084] The air vents 32 b are used to allow external air to pass through and flow toward the heat sink 13 , so as to increase the heat dissipation efficiency of the heat sink 13 .

[0085] Specifically, see Figure 1 and Figure 4 When the fan assembly is working, the housing 30 is in a negative pressure environment. In addition to entering the housing 30 from the air inlet 32c, the external air flow can also enter the housing 30 from the air outlet 32b and exchange heat with the heat sink 13, thereby increasing the heat dissipation efficiency of the heat sink 13.

[0086] For example, see Figure 10 The heat sink 13 may include a plurality of heat sinks 133. For ease of description, the side of the heat sink 13 close to the air outlet 32b and the side away from the air outlet 32b may be referred to as the opposite sides of the heat sink 13 along a second direction perpendicular to the first direction. The plurality of heat sinks 133 may be spaced apart along a third direction, wherein the third direction is perpendicular to the first direction and the second direction respectively.

[0087] The heat sink 133 is the part of the heat sink 13 that realizes heat dissipation. By arranging multiple heat sinks 133 at intervals along the third direction, the interval between two adjacent heat sinks 133 can be directed toward the air outlet 32b, so that the air flow can flow more smoothly between the air outlet 32b and the interval between two adjacent heat sinks 133, thereby improving the heat dissipation effect of the heat sink 133.

[0088] In one embodiment, please refer to Figure 12 and Figure 13 The second shell 142 can have an air duct 142b and an air inlet 142c, an air outlet 142d and an installation port respectively connected to the air duct 142b. The electric control box 10 includes an inductor component 15 arranged in the second area 12a2 of the component surface 12a. The inductor component 15 includes an inductor element 151 electrically connected to the electric control board 12. At least part of the structure of the inductor element 151 extends into the air duct 142b from the installation port.

[0089] Air duct 142b is a passage for airflow. Air inlet 142c is the entrance for airflow into air duct 142b. Air outlet 142d is the exit for airflow out of air duct 142b. The mounting opening is the entrance for inductor 151 to enter air duct 142b. When air flows through air duct 142b, it absorbs heat generated by inductor 151, thereby dissipating heat from inductor 151.

[0090] The location of the air inlet 142c is not limited. For example, see Figure 5 and Figure 13 The air inlet 142c can be directed toward the heat sink 13, that is, the air inlet 142c is located between the heat sink 13 and the air duct 142b. The airflow first exchanges heat with the heat sink 13, then enters the air duct 142b from the air inlet 142c to exchange heat with the inductor element 151, and then flows out from the air outlet 142d. In this way, the airflow can dissipate heat for the heat sink 13 and the inductor element 151 at the same time.

[0091] For an embodiment in which the heat sink 13 includes multiple fins spaced apart along a third direction, the space between two adjacent heat sinks 133 can be oriented not only toward the air outlet 32b but also toward the air inlet 142c, so that the air flow can flow more smoothly from the air outlet 32b to the air inlet 142c, thereby improving the heat dissipation effect of the heat sink 13 and the inductor element 151.

[0092] The location of the air outlet 142d is not limited. For example, see Figure 5 and Figure 13The air outlet 142d can be located on the side of the inductor component 15 away from the electronic control board 12, that is, the air outlet 142d and the installation port are respectively located on opposite sides of the air duct 142b along the second direction, which can improve the heat exchange effect between the inductor element 151 and the airflow.

[0093] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean 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 this application, the schematic representations of the above terms do 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 different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0094] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An electric control box, characterized in that: include: A first box body having a receiving cavity, wherein one side of the receiving cavity has an opening; an electric control board, the electric control board being disposed in the accommodating cavity, with a component surface of the electric control board exposed at the opening, wherein the component surface includes a first area and a second area arranged along a first direction; a heat sink disposed in the first region of the component surface; The second box body is covered at the opening, and the second box body includes a first shell and an openable and closable second shell. The first shell corresponds to the first area, and the second shell corresponds to the second area. The first shell is sleeved on the outer peripheral side of the heat sink, and the second shell is opened and closed to avoid or block the second area of ​​the component surface.

2. The electric control box according to claim 1, characterized in that: When the second shell is in a closed state, the second shell abuts against a side of the first shell facing away from the electric control board.

3. The electric control box according to claim 2, characterized in that: One of the first shell and the second shell has a first plug-in slot, and the other has a first rib. When the second shell is in a closed state, the first rib is plugged into and fitted with the first plug-in slot.

4. The electric control box according to any one of claims 1 to 3, characterized in that: The heat sink includes a heat sink body and a boss arranged on the outer peripheral side of the heat sink body. The first shell is sleeved on the heat sink body and abuts against the boss.

5. The electric control box according to any one of claims 1 to 3, characterized in that: The first shell is detachably connected to the first box body.

6. The electric control box according to claim 5, characterized in that: The first shell includes a main body and a mounting portion, and the side of the main body close to the second area along the first direction is the first side of the main body along the circumferential direction. The mounting portion is arranged on the outer peripheral side of the main body along the circumferential direction and avoids the first side. The main body is sleeved on the outer peripheral side of the heat sink, and the mounting portion is detachably connected to the first box body.

7. The electric control box according to claim 5, characterized in that: One of the first shell and the first box body has a second plug-in slot, and the other one has a second rib, and the second rib is plugged into and matched with the second plug-in slot.

8. The electric control box according to any one of claims 1 to 3, characterized in that: The second shell has an air duct and an air inlet, an air outlet and an installation port respectively connected to the air duct. The electrical control box includes an inductor component arranged in the second area of ​​the component surface. The inductor component includes an inductor element electrically connected to the electrical control board. At least part of the structure of the inductor element extends into the air duct from the installation port.

9. The electric control box according to claim 8, characterized in that: The air inlet faces the heat sink; and / or, The air outlet is located on a side of the inductor component away from the electric control board.

10. A head assembly, characterized in that: include: water tray; a cover shell provided on one side of the water receiving tray, the cover shell comprising a shell cover and a shell body, the shell cover being provided on a side of the shell body away from the water receiving tray; The electric control box according to any one of claims 1 to 9, wherein the electric control box is arranged in the cover; The shell body is provided with an avoidance opening, the second box body is located between the avoidance opening and the first box body, the avoidance opening avoids the second shell body and is at least partially staggered with the first shell body.

11. The head assembly according to claim 10, characterized in that The head assembly includes a wire controller assembly, which is covered at the avoidance opening and electrically connected to the electric control board.

12. The head assembly according to claim 10, wherein: The shell body has an air outlet facing the heat dissipation element.

13. The head assembly according to claim 12, wherein: The side of the heat sink close to the air outlet and the side away from the air outlet are opposite sides of the heat sink along a second direction perpendicular to the first direction. The heat sink includes a plurality of heat sinks, and the plurality of heat sinks are arranged at intervals along a third direction, wherein the third direction is perpendicular to the first direction and the second direction respectively.

14. A heat pump water heater, characterized in that: It comprises a water tank assembly and a head assembly according to any one of claims 10 to 13, wherein the head assembly is arranged on the water tank assembly.

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