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

Abstract

The invention relates to the technical field of electrical equipment, and provides an electric control box, a machine head assembly and a heat pump water heater, the electric control box comprises a box cover assembly, an electric control mainboard and a box body assembly, and the box cover assembly comprises a box cover main body and a first plug connector; the electric control main board is arranged on the box cover main body; the box body assembly comprises a box body main body and a second plug connector, and the box cover main body has an opening state in which the box cover main body is unfolded relative to the box body main body and a buckling state in which the box body main body is buckled; when the box cover main body is in an open state, the first plug connector is inserted into the second plug connector; and when the box cover main body is in a buckled state, the first plug connector and the second plug connector are disconnected. The first plug connector can be inserted into the second plug connector, the box cover body can be kept in an open state, an operator does not need to hold the box cover body with one hand, a tool does not need to be additionally arranged to support the box cover assembly, the operator can assemble a conductor wire to an electric control mainboard arranged on the box cover body with two hands, operation is easy, and the operation efficiency is improved. And the wiring difficulty is reduced.

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] This section is intended to provide a background or context to the embodiments of the application that are recited in the claims. No description herein is admitted to be prior art by inclusion in this section.

[0003] Taking heat pump water heater as an example, the electrical equipment provides control functions through the electric control box to realize the automatic control of the heat pump water heater. In the related technology, the electric control mainboard of the electric control box is fixed on the upper cover of the electric control box, and the electric control mainboard needs to be installed with conductive wires. In the process of assembling the conductive wires and the electric control mainboard, in some cases, the operator needs to hold the upper cover by hand and assemble the conductive wires to the electric control mainboard at the same time. It may also be necessary to use tooling to assist in supporting the upper cover and then assemble the conductive wires to the electric control mainboard. The operation is complicated, the wiring is difficult, and the cost is relatively high. Summary of the invention

[0004] In view of this, the present application hopes to provide an electric control box, a head assembly and a heat pump water heater that can reduce the difficulty of wiring.

[0005] The present application provides an electric control box, comprising:

[0006] The box cover assembly comprises a box cover body and a first plug-in connector;

[0007] An electric control mainboard, arranged on the box cover body;

[0008] The box assembly comprises a box body and a second plug-in component, wherein the box cover body has an open state in which it is unfolded relative to the box body, and a buckled state in which it is buckled with the box body;

[0009] When the box cover body is in the open state, the first connector is inserted into the second connector; when the box cover body is in the engaged state, the first connector and the second connector are disconnected.

[0010] In some embodiments, the second connector forms a slot, and when the box cover body is in the open state, the first connector is inserted into the slot; when the box cover body is in the engaged state, the first connector is removed from the slot.

[0011] In some embodiments, the second connector includes a surrounding plate, which extends along the outer circumference of the box body and defines the slot.

[0012] In some embodiments, at least one of the second connectors includes a folded edge, which is connected to the lower end of the enclosure and bent toward the bottom of the slot.

[0013] In some embodiments, the electric control box includes a support plate, which is used to support the box body, and a portion of the support plate extends below at least one of the slots.

[0014] In some embodiments, the second connector forms a boss, and the boss is located on a side of the slot away from the box body. When the box cover body is in the open state, the box cover body abuts against the boss.

[0015] In some embodiments, both the first connector and the second connector are metal structures; or,

[0016] The first plug-in connector and the second plug-in connector are both made of plastic.

[0017] In some embodiments, the box cover body includes a metal box cover, the metal box cover includes a first side wall and a second side wall, the second side wall is connected to the first side wall and extends in a direction away from the first side wall, and the first connector is connected to both the first side wall and the second side wall.

[0018] In some embodiments, the box body includes a metal box body, the metal box body includes a third side wall and a fourth side wall, the fourth side wall is connected to the third side wall and extends in a direction away from the third side wall, and the second connector is connected to both the third side wall and the fourth side wall.

[0019] In some embodiments, the first connector is formed with a first hole and a second hole, the opening direction of the first hole is opposite to the opening direction of the second hole, and the first hole and the second hole are staggered.

[0020] In some embodiments, the box cover body includes a metal box cover and a plastic box cover, the metal box cover covers the outside of the plastic box cover, and the metal box cover includes an extension portion, and the extension portion covers at least a portion of the surface of the first connector.

[0021] In some embodiments, the extension portion is folded into a multi-layer structure.

[0022] In some embodiments, the box body includes a metal box body and a plastic box body, the metal box body covers the outside of the plastic box body, the box body includes a load-bearing rib arranged below the second connector, the metal box body includes a folded edge, the folded edge is located on a side of the load-bearing rib close to the plastic box body, and the folded edge is used to abut against the load-bearing rib.

[0023] In some embodiments, the plastic box body is formed with reinforcing ribs, and the reinforcing ribs and the folded edges are respectively located on opposite sides of the same side wall of the plastic box body.

[0024] In some embodiments, the electric control box includes a connector, the second connector forms a fastening hole, the first connector forms a through hole, and when the box cover body is in the buckled state, the connector is inserted through the through hole and the fastening hole.

[0025] In some embodiments, there are multiple first connectors, and the multiple first connectors are all plugged into the same second connector.

[0026] In some embodiments, the number of the first connector and the number of the second connector are both plural, and each first connector corresponds to one second connector.

[0027] An embodiment of the present application provides a head assembly, characterized in that it includes any one of the above-mentioned electric control boxes.

[0028] In some embodiments, the head assembly includes an air guide shell, the electric control box is connected to the air guide shell, and when the box cover body is in the open state, part of the box cover body is supported above the air guide shell.

[0029] In some embodiments, the head assembly includes a wind wheel and a heat exchanger, and the wind wheel and the box body are located on opposite sides of the heat exchanger.

[0030] In some embodiments, the head assembly includes a shell, the shell forms a accommodating cavity, an air inlet and an air outlet, the air inlet and the air outlet are both connected to the accommodating cavity, and the heat exchanger, the electrical control box and the wind wheel are all located in the accommodating cavity.

[0031] In some embodiments, the head assembly includes a support rod, and the lower end of the box body is connected to the support rod.

[0032] In some embodiments, the head assembly includes a compressor, and the compressor is located below the box body.

[0033] An embodiment of the present application also provides a heat pump water heater, characterized in that it includes any one of the head components described above.

[0034] The embodiment of the present application provides an electric control box, in which a first connector can be inserted into a second connector, a box cover body can be kept in an open state, and the box cover body can be stably kept in an upright position without falling. An operator does not need to hold the box cover body with one hand, and does not need to add additional tooling to support the box cover assembly. The operator can use both hands to assemble the conductive wire to the electric control main board arranged on the box cover body, which is simple to operate, reduces the difficulty of wiring, improves production efficiency, and can also reduce the risk of product damage caused by the box cover body falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the structure of a heat pump water heater in one embodiment of the present application;

[0036] Figure 2 This is a structural schematic diagram of a head assembly in one embodiment of the present application;

[0037] Figure 3 for Figure 2 An exploded schematic diagram of the nose assembly shown;

[0038] Figure 4 for Figure 2 A schematic diagram of another perspective of the head assembly shown, wherein the end cap is not shown;

[0039] Figure 5 It is a schematic diagram of the partial structure of the machine head assembly, wherein the box cover body is in an open state, and the first plug-in connector is plugged into the second plug-in connector;

[0040] Figure 6 for Figure 5 Schematic cross-sectional view in the AA direction;

[0041] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0042] Figure 8 for Figure 2 Schematic diagram of another view of the central electronic control box;

[0043] Fig. 9 for Figure 8 Schematic cross-sectional view in the CC direction;

[0044] Fig.10 This is a schematic structural diagram of a box cover assembly in another embodiment of the present application;

[0045] Fig.11 for Fig.10 Schematic cross-sectional view in the middle DD direction;

[0046] Fig.12 It is a structural schematic diagram of a head assembly in another embodiment of the present application, wherein the end cover is not shown and the box cover body is in a buckled state;

[0047] Fig.13 for Fig.12 Schematic diagram of the structure of the electronic control box;

[0048] Fig.14 for Fig.13 Explosion diagram of the central electronic control box;

[0049] Fig.15 for Fig.12 Schematic diagram of the central electric control box with the cover body in the open state;

[0050] Fig.16 for Fig.15 A schematic diagram of the structure shown from another perspective;

[0051] Fig.17 for Fig.16 Cross-sectional view in the EE direction;

[0052] Fig.18 for Fig.15 A schematic diagram of the structure shown in another perspective;

[0053] Fig.19 for Fig.18 Cross-sectional view along the EE direction.

[0054] Description of Reference Numerals

[0055] 100, heat pump water heater; 10, water tank assembly; 20, head assembly; 21, air guide shell; 22, heat exchanger; 23, housing; 23a, accommodating chamber; 23b, air inlet; 23c, air outlet; 24, support rod; 25, compressor; 231, annular housing; 232, end cover; 233, water receiving tray;

[0056] 1. Electric control box; 11. Box cover assembly; 111. Box cover body; 1111. Metal box cover; 11111. First side wall; 11112. Second side wall; 11113. Extension; 1112. Plastic box cover; 112. First connector; 112a. First hole; 112b. Second hole; 112c. Through hole; 13. Electric control main board; 131. Front; 132. Back; 12. Box body assembly; 1 21. Box body; 1211. Metal box body; 12111. Third side wall; 12112. Fourth side wall; 12113. Folding edge; 1212. Plastic box body; 12121. Reinforcing ribs; 1213. Load-bearing ribs; 122. Second connector; 122a. Slot; 122b. Fastening hole; 1221. Enclosure; 1222. Folding edge; 1223. Boss; 14. Support plate; 15. Heat sink. DETAILED DESCRIPTION

[0057] In the absence of conflict, the embodiments and technical features in the embodiments of the present application may be combined with each other, and the detailed descriptions in the specific implementation methods should be understood as explanations of the purpose of the present application and should not be regarded as improper limitations on the present application.

[0058] It should be noted that, in the embodiments of the present application, down refers to the direction where the ground is located, and up is opposite to down. In the embodiments of the present application, the orientation or positional relationship of "up" and "down" is based on the orientation or positional relationship shown in the accompanying drawings. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do 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 cannot be understood as a limitation on the present application. The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] It should be noted that, in the embodiments of the present application, a plurality includes a number of two or more.

[0060] See also Figures 1 to 4 The electric control box 1 is used to provide control functions for electrical equipment. For example, the electric control box 1 can control the on / off or mode selection of the electrical equipment. The electrical equipment includes but is not limited to the heat pump water heater 100. It is understandable that the electric control box 1 can also be used for electrical equipment other than the heat pump water heater 100, for example, a heat pump air conditioning device. The embodiment of the present application is described by taking the heat pump water heater 100 as an example.

[0061] See also Figures 2 to 4 An embodiment of the present application provides a head assembly 20, and the head assembly 20 includes the electric control box 1 in any embodiment of the present application.

[0062] The head assembly 20 can be used in the heat pump water heater 100 , and the head assembly 20 can integrate at least some of the electrical components in the heat pump water heater 100 .

[0063] See also Figures 1 to 19 The embodiment of the present application provides a heat pump water heater 100, and the heat pump water heater 100 includes the head assembly 20 in any one of the embodiments of the present application. That is, the electric control box 1 provided in the embodiment of the present application can be used in the heat pump water heater 100.

[0064] The heat pump water heater 100 may also be a variable frequency heat pump water heater, that is, the control mainboard may be provided with a frequency converter, for example, the compressor 25 may be a variable frequency compressor, and the frequency converter may adjust the frequency of the variable frequency compressor.

[0065] In the related art, the electric control box includes an upper cover and a lower cover, which are buckled together to define an installation cavity, the electric control main board is located in the installation cavity and connected to the upper cover, a rotating shaft is installed on the upper cover, and the lower cover has an opening slot for accommodating the rotating shaft, and the rotating shaft enters the opening slot through the opening of the opening slot to realize the rotation connection between the upper cover and the lower cover. Since the conductive wire needs to be electrically connected to the device outside the electric control box, that is, one end of the conductive wire needs to be fixed outside the electric control box, therefore, the terminals of these conductive wires need to be inserted into the electric control main board before the upper cover can be assembled to the lower cover. During the assembly of the electric control box, the shaft is passed through the opening of the slot and into the slot. Since the angle between the upper cover and the lower cover is greater than 90°, the shaft is likely to slip out of the slot, causing the upper cover to fall off. Therefore, the upper cover needs to be rotated to an angle less than 90° with the lower cover, and then the upper cover is supported by a tool. During the assembly of the conductive wire to the electric control mainboard, the upper cover needs to be supported by hand to prevent the upper cover from continuing to rotate away from the lower cover, causing the angle to be greater than 90°. In this assembly method, the operator holds the upper cover with one hand and assembles the conductive wire with the other hand, which is inconvenient to operate and has relatively low production efficiency. It is also necessary to add a tool to support the upper cover, which increases production costs. The operator is also prone to misoperation, causing the upper cover to fall off, resulting in damage to the electric control mainboard or smashing other structural parts, causing losses.

[0066] See also Figure 3 An embodiment of the present application provides an electric control box 1 , which includes a box cover assembly 11 , an electric control main board 13 and a box body assembly 12 .

[0067] The electric control main board 13 is a key component of the electric control box 1 . The electric control main board 13 provides a control function. The electric control main board 13 may be a circuit board provided with circuits and electrical components.

[0068] The electric control mainboard 13 can be electrically connected to the electrical components of the electrical equipment through conductive wires to control the electrical components. The electrical components include but are not limited to at least one of a motor, a compressor 25, a throttling device, an electric control switch, a display panel, and a sensor.

[0069] See also Figures 3 to 8 The box cover assembly 11 includes a box cover body 111 and a first plug connector 112. The electric control main board 13 is arranged on the box cover body 111. The box body assembly 12 includes a box body body 121 and a second plug connector 122. The box cover body 111 has an open state in which it is unfolded relative to the box body body 121, and a buckled state in which it is buckled with the box body body 121. When the box cover body 111 is in the open state, the first plug connector 112 is plugged into the second plug connector 122. When the box cover body 111 is in the buckled state, the first plug connector 112 and the second plug connector 122 are disconnected.

[0070] See also Figure 6The box cover body 111 is in an open state, for example, the angle between the box cover body 111 and the box body 121 is greater than 0°. In other words, the box cover body 111 is in a standing posture, the box cover body 111 does not close the upward opening of the box body 121, and the internal structure of the box body 121 can be exposed.

[0071] When the box cover body 111 is in the open state, the electric control main board 13 and the box cover body 111 remain in an upright position, and the electric control main board 13 can face the operator to facilitate the operator to assemble the conductive wires to the electric control main board 13 .

[0072] See also Figure 5 and Figure 8 The box cover body 111 is in a buckled state, for example, the angle between the box cover body 111 and the box body 121 can be equal to 0°. In other words, the box cover body 111 is in a prone position, the box cover body 111 closes the upward opening of the box body 121, and the internal structure of the box body 121 cannot be exposed.

[0073] When the box cover body 111 is in the buckled state, the electronic control main board 13 and the box cover body 111 remain in a prone position, and the electronic control main board 13 can face the box body 121. The electronic control main board 13 is accommodated in the placement cavity defined by the box cover body 111 and the box body 121.

[0074] The first connector 112 and the second connector 122 remain plugged together, so that the box cover body 111 can remain in an open state. The first connector 112 and the second connector 122 are disconnected, so that the box cover body 111 can be buckled with the box body 121, and the box cover body 111 closes the upward opening of the box body 121.

[0075] As an example, during the assembly of the electric control box 1, that is, during the production of the electric control box 1 on the production line, the first connector 112 can be inserted into the second connector 122, the box cover body 111 can be kept in an open state, and the box cover body 111 can be stably maintained in an upright position without falling. The operator does not need to hold the box cover body 111 with one hand, and there is no need for additional tooling to support the box cover body 111. The operator can assemble the conductive wire to the electric control main board 13 arranged on the box cover body 111 with both hands, and the operation is simple.

[0076] The embodiment of the present application provides an electric control box 1, in which the first connector 112 can be inserted into the second connector 122, and the box cover body 111 can be kept in an open state. The box cover body 111 can be stably maintained in an upright position without falling. The operator does not need to hold the box cover body 111 with one hand, and does not need to add additional tooling to support the box cover assembly 11. The operator can use both hands to assemble the conductive wire to the electric control main board 13 arranged on the box cover body 111. The operation is simple, reduces the difficulty of wiring, improves production efficiency, and can also reduce the risk of product damage caused by the box cover body 111 falling.

[0077] For some examples, see Figures 3 to 6 The back side 132 of the electric control main board 13 may face the box cover body 111, the front side 131 of the electric control main board 13 may face away from the box cover body 111, and the electrical components may be fixed on the front side 131 of the electric control main board 13. Figure 3 to Figure 4 , the box cover body 111 is in a buckled state, the front side 131 of the electric control main board 13 can face downward, and the electrical components are located in the placement cavity.

[0078] In this embodiment, when the box cover body 111 is in the open state, the angle between the front face 131 of the electric control main board 13 and the horizontal plane is greater than 0°. Preferably, the angle between the front face 131 of the electric control main board 13 and the horizontal plane may be not less than 60° and not greater than 120°. For example, the angle between the front face 131 of the electric control main board 13 and the horizontal plane may be 90°. In this way, the front face 131 of the electric control main board 13 may be generally facing the operator, so that the operator can check the installation position of the conductive wire on the electric control main board 13. When the box cover body 111 is in the buckled state, the front face 131 of the electric control main board 13 may face downward, and the electrical components arranged on the front face 131 are also located below the electric control main board 13.

[0079] The connection method between the electric control main board 13 and the box cover body 111 is not limited, and the electric control main board 13 and the box cover body 111 can be detachably connected or non-detachably connected. The detachable connection includes but is not limited to snap-on connection and / or fastener connection, etc. The non-detachable connection includes but is not limited to bonding and / or welding, etc.

[0080] Fasteners include but are not limited to screws or bolts and the like.

[0081] There is no limitation on the connection method between the conductive wire and the electronic control main board 13 . The conductive wire can be plugged or clipped to the electronic control main board 13 through a wire terminal.

[0082] For some examples, see Figure 3 and Figure 5The electric control box 1 includes a heat sink 15, one end of which can be fixed to the front face 131 of the electric control main board 13, and the other end of the heat sink 15 can extend to the outside of the electric control box 1. For example, the other end of the heat sink 15 can extend below the box body 121. The heat sink 15 can transfer the heat generated by the electric control main board 13 and the electrical components to the external environment of the electric control box 1, thereby reducing the temperature of the electric control main board 13 and the electrical components, and achieving the purpose of heat dissipation and temperature reduction.

[0083] The heat sink 15 can be made of a good thermal conductor material such as aluminum or copper.

[0084] For some examples, see Figure 3 and Figure 5 , the box body main body 121 is placed roughly horizontally. That is, the surface with the largest area of ​​the box body main body 121 is roughly parallel to the horizontal plane, and the thickness direction of the box body main body 121 is perpendicular to the horizontal direction.

[0085] For some examples, see Figures 3 to 19 The second connector 122 forms a slot 122a, and the cover body 111 is in the open state, and the first connector 112 is inserted into the slot 122a (see Figure 7 ); the cover body 111 is in the buckled state, the first connector 112 is out of the slot 122a (see Fig. 9 ).

[0086] The first connector 112 is inserted into the slot 122 a so that the first connector 112 and the second connector 122 are kept plugged in.

[0087] The first connector 112 is disengaged from the slot 122 a , so that the first connector 112 and the second connector 122 are disconnected from each other.

[0088] When the box cover body 111 needs to be placed upright, the box cover body 111 with the electronic control main board 13 can be lifted and the first connector 112 can be inserted into the slot 122a. In this way, the first connector 112 and the second connector 122 remain plugged in and the box cover body 111 can remain in the open state.

[0089] In this embodiment, when the first connector 112 is inserted into the slot 122a, the wall of the slot 122a restricts the first connector 112, so that the box cover body 111 can be stably kept in the open state. When the first connector 112 is out of the slot 122a, the first connector 112 and the second connector 122 are disconnected, the wall of the slot 122a no longer restricts the first connector 112, and the box cover body 111 can be fastened with the box body 121.

[0090] It can be understood that the size of the portion where the first connector 112 is inserted into the slot 122a can be smaller than the size of the slot 122a. For example, the width of the first connector 112 can be smaller than the width of the slot 122a, the thickness of the first connector 112 can be smaller than the thickness of the slot 122a, and the length of the first connector 112 can be equal to or greater than the depth of the slot 122a. In this way, the first connector 112 can be inserted into the slot 122a.

[0091] For some examples, see Figures 12 to 19 The second connector 122 includes a surrounding plate 1221, which extends along the outer circumference of the box body 121 and defines a slot 122a.

[0092] The outer peripheral surface of the case body 121 refers to a surface of the case body 121 surrounding a straight line extending in the up-down direction.

[0093] In this embodiment, a portion of the outer peripheral surface of the box body 121 can be used as the wall surface of the slot 122 a to simplify the structure of the second connector 122 .

[0094] As an example, the second plug connector 122 may be a metal structure. The metal structure refers to a structure made of metal material.

[0095] For some examples, see Fig.15 and Fig.19 At least one second connector 122 includes a folded edge 1222, which is connected to the lower end of the enclosure 1221 and bent toward the bottom of the slot 122a.

[0096] At least one second connector 122 includes a folded edge 1222 , which means that one second connector 122 may have a folded edge 1222 , while at least one second connector 122 may not have a folded edge 1222 ; or, all second connectors 122 may have a folded edge 1222 .

[0097] In this embodiment, when the first connector 112 is inserted into the slot 122 a , the folded edge 1222 can be used to support the first connector 112 upward.

[0098] For some examples, see Figures 12 to 17 The electric control box 1 includes a support plate 14, which is used to support the box body 121, and a portion of the support plate 14 extends below at least one slot 122a.

[0099] Part of the support plate 14 extends to the bottom of at least one slot 122a, which means: there may be a partial structure of the support plate 14 under one slot 122a, while there is no structure of the support plate 14 under at least one slot 122a; or, there may be a partial structure of the support plate 14 under all slots 122a.

[0100] In this embodiment, when the first connector 112 is inserted into the slot 122 a , the portion of the support plate 14 located below the slot 122 a can be used to support the first connector 112 upward.

[0101] For some examples, see Figures 12 to 19 There are two second connectors 122 , one of which includes a folded edge 1222 , and another second connector 122 has a partial structure of the support plate 14 below the slot 122 a .

[0102] For some examples, see Figure 7 The second connector 122 forms a boss 1223, which is located on a side of the slot 122a away from the box body 121. When the box cover body 111 is in the open state, the box cover body 111 abuts against the boss 1223. Specifically, the boss 1223 extends upward from the second connector 122.

[0103] When the box cover body 111 is in the open state, the first connector 112 is inserted into the slot 122 a , and the box cover body 111 abuts against the boss 1223 .

[0104] In this embodiment, when the box cover body 111 is in the open state, the box cover body 111 abuts against the boss 1223. The boss 1223 can provide support for the box cover body 111, which can not only lengthen the support arm to reduce the shaking of the box cover body 111, but also reduce the risk of deformation of the box cover body 111.

[0105] The first connector 112 may be an integrally formed structure, for example, the first connector 112 may be a sheet metal structure formed by a sheet metal process, or the first connector 112 may be a plastic structure integrally formed by injection molding.

[0106] The second connector 122 may be an integrally formed structure, for example, the second connector 122 may be a sheet metal structure formed by a sheet metal process, or the second connector 122 may be a plastic structure integrally formed by injection molding.

[0107] For some examples, see Figures 12 to 19 The first connector 112 and the second connector 122 are both metal structures. The metal structure has good structural strength.

[0108] In order to facilitate processing and manufacturing, the first connector 112 may be made of a sheet metal structure. The second connector 122 may be made of a sheet metal structure.

[0109] The sheet metal structure refers to a structure formed by cold working such as stamping, shearing or bending of a metal plate. In other words, the second connector 122 is a structure formed by cold working such as stamping, shearing or bending of a metal plate.

[0110] For some examples, see Figures 1 to 11 The first connector 112 and the second connector 122 are both made of plastic. The plastic structure is light in weight and relatively low in cost.

[0111] In order to improve the fire prevention effect, at least one of the first connector 112 and the second connector 122 may be made of flame-retardant plastic.

[0112] For some examples, see Figures 13 to 16 The box cover body 111 includes a metal box cover 1111, and the metal box cover 1111 includes a first side wall 11111 and a second side wall 11112. The second side wall 11112 is connected to the first side wall 11111 and extends in a direction away from the first side wall 11111. The first connector 112 is connected to both the first side wall 11111 and the second side wall 11112.

[0113] The metal box cover 1111 is a metal structure made of metal material.

[0114] The first side wall 11111 and the second side wall 11112 are connected and intersected. The first side wall 11111 and the second side wall 11112 can both be two side walls of the circumferential wall of the metal box cover 1111.

[0115] In this embodiment, the metal box cover 1111 can improve the fireproof performance of the box cover body 111. The first connector 112 is connected to the first side wall 11111 and the second side wall 11112. When the first connector 112 is plugged into the second connector 122, the force of the operator installing the electric control motherboard 13 and the conductive wire is transmitted to the connection between the first connector 112 and the first side wall 11111 and the second side wall 11112, which can improve the force bearing capacity, effectively enhance the connection strength of the first connector 112, and reduce the risk of the first connector 112 falling off.

[0116] In some embodiments, the enclosure 1221 includes a grooved plate and two support plates, the grooved plate and the box body 121 together define a slot 122a, the two support plates connect two ends of the grooved plate, one of the support plates is connected to the first side wall 11111, and the other support plate extends from the first side wall 11111 to the second side wall 11112. In other words, the other support plate connects the first side wall 11111 and the second side wall 11112.

[0117] For some examples, see Figures 13 to 16There are two first connectors 112, the metal box cover 1111 includes two second side walls 11112, the two second side walls 11112 are respectively connected to the two ends of the first side wall 11111, the two second side walls 11112 extend in the same direction, the two first connectors 112 are both connected to the same first side wall 11111, and are respectively connected to one second side wall 11112.

[0118] In this embodiment, the two first connectors 112 can be respectively disposed at the two ends of the metal box cover 1111. The two first connectors 112 are subjected to more balanced forces, and the box cover body 111 is kept in an open state more stably.

[0119] As an example, in some embodiments, the first side wall 11111 and the second side wall 11112 are both welded to the first connector 112. In some embodiments, the first side wall 11111 and the second side wall 11112 are both connected to the first connector 112 via fasteners.

[0120] In some embodiments, the number of the first connector 112 is one, the metal box cover 1111 includes two second side walls 11112, the two second side walls 11112 are respectively connected to the two ends of the first side wall 11111, the two second side walls 11112 extend in the same direction, and the first connector 112 can be connected to the first side wall 11111 and the two second side walls 11112.

[0121] It is understandable that the number of the first connectors 112 may be more than two.

[0122] For some examples, see Figures 13 to 16 The box body 121 includes a metal box body 1211, the metal box body 1211 includes a third side wall 12111 and a fourth side wall 12112, the fourth side wall 12112 is connected to the third side wall 12111 and extends in a direction away from the third side wall 12111, and the second connector 122 is connected to both the third side wall 12111 and the fourth side wall 12112.

[0123] The metal box body 1211 is a metal structure made of metal material.

[0124] The third side wall 12111 and the fourth side wall 12112 are connected and intersected. The third side wall 12111 and the fourth side wall 12112 can both be two side walls of the circumferential wall of the metal box body 1211.

[0125] In this embodiment, the metal box body 1211 can improve the fireproof performance of the box body 121. The second connector 122 is connected to both the third side wall 12111 and the fourth side wall 12112. When the first connector 112 is plugged into the second connector 122, the force of the operator installing the electric control motherboard 13 and the conductive wire is transmitted to the connection between the second connector 122 and the third side wall 12111 and the fourth side wall 12112, which can improve the force bearing capacity, effectively enhance the connection strength of the second connector 122, and reduce the risk of the second connector 122 falling off.

[0126] For some examples, see Figures 13 to 16 There are two second connectors 122, the metal box body 1211 includes two fourth side walls 12112, the two fourth side walls 12112 are respectively connected to the two ends of the third side wall 12111, the two fourth side walls 12112 extend in the same direction, and the two second connectors 122 are both connected to the same third side wall 12111 and are respectively connected to one fourth side wall 12112.

[0127] In this embodiment, the two second connectors 122 can be respectively disposed at the two ends of the metal box body 1211 , so that the two second connectors 122 are subjected to more balanced forces, thereby keeping the box cover body 111 in an open state more stably.

[0128] As an example, in some embodiments, the third side wall 12111 and the fourth side wall 12112 are both welded to the second connector 122. In some embodiments, the third side wall 12111 and the fourth side wall 12112 are both connected to the second connector 122 via fasteners.

[0129] In some embodiments, the number of the second connector 122 is one, the metal box body 1211 includes two fourth side walls 12112, the two fourth side walls 12112 are respectively connected to the two ends of the third side wall 12111, the two fourth side walls 12112 extend in the same direction, and the second connector 122 can be connected to the third side wall 12111 and the two fourth side walls 12112.

[0130] It is understandable that the number of the second connectors 122 may be more than two.

[0131] For some examples, see Fig. 9 The first connector 112 is formed with a first hole 112a and a second hole 112b, the opening direction of the first hole 112a is opposite to the opening direction of the second hole 112b, and the first hole 112a and the second hole 112b are staggered. Specifically, the first hole 112a and the second hole 112b are both blind holes.

[0132] The staggered arrangement of the first hole 112a and the second hole 112b means that the projections of the first hole 112a and the second hole 112b in the depth direction do not overlap. For example, when the box cover body 111 is in a buckled state, with the horizontal plane as the projection plane, the projection of the first hole 112a and the projection of the second hole 112b do not overlap.

[0133] In this embodiment, the first hole 112a and the second hole 112b can improve the structural strength of the first connector 112, and the first connector 112 can support the box cover body 111 more stably. Even if the operator does not hold the box cover body 111 with his hands, the box cover body 111 and the electronic control main board 13 can maintain an upright posture, thereby reducing the shaking of the box cover body 111 and the electronic control main board 13.

[0134] In some embodiments, the first connector 112 may be a metal structure, and the first hole 112 a and the second hole 112 b may be formed by stamping or other processes.

[0135] In some embodiments, the first plug-in component 112 may be a plastic structure, and the first hole 112a and the second hole 112b may be formed by injection molding or other processes.

[0136] For some examples, see Fig.10 and Fig.11 The box cover body 111 includes a metal box cover 1111 and a plastic box cover 1112 . The metal box cover 1111 covers the outside of the plastic box cover 1112 . The metal box cover 1111 includes an extension portion 11113 . The extension portion 11113 covers at least a portion of the surface of the first connector 112 .

[0137] The plastic box cover 1112 can improve the insulation performance of the box cover body 111 , and the metal box cover 1111 can improve the fireproof performance of the box cover body 111 .

[0138] The metal box cover 1111 covers the outside of the plastic box cover 1112 means that the metal box cover 1111 covers at least part of the outer surface of the plastic box cover 1112 , for example, the metal box cover 1111 covers the entire outer surface of the plastic box cover 1112 or covers part of the outer surface of the plastic box cover 1112 .

[0139] As an example, the shape of the metal box cover 1111 may match the shape of the plastic box cover 1112 , and the metal box cover 1111 may be nested with the plastic box cover 1112 to form a double-layer structure.

[0140] In this embodiment, the extension portion 11113 covers at least a portion of the surface of the first connector 112, the extension portion 11113 can improve the structural strength of the first connector 112, the extension portion 11113 and the first connector 112 can jointly provide a supporting force, the extension portion 11113 and the first connector 112 can more stably support the box cover body 111, even if the operator does not hold the box cover body 111 with his hands, the box cover body 111 and the electronic control main board 13 can maintain an upright posture, thereby reducing the shaking of the box cover body 111 and the electronic control main board 13.

[0141] In some embodiments, the extension portion 11113 may be a single-layer sheet structure. In other words, the extension portion 11113 may be a single-layer structure in which a portion of the metal box cover 1111 extends to the first plug-in component 112 .

[0142] For some examples, see Fig.11 The extension part 11113 is folded into a multi-layer structure. In other words, the extension part 11113 can be a multi-layer structure formed by repeatedly folding the metal sheet extending from the metal cover 1111 to the first plug connector 112. The extension part 11113 has better structural strength.

[0143] For some examples, see Figure 7 The box body 121 includes a metal box body 1211 and a plastic box body 1212. The metal box body 1211 covers the outside of the plastic box body 1212. The box body 121 includes a load-bearing rib 1213 arranged below the second connector 122. The metal box body 1211 includes a folded edge 12113. The folded edge 12113 is located on a side of the load-bearing rib 1213 close to the plastic box body 1212. The folded edge 12113 is used to abut against the load-bearing rib 1213.

[0144] The plastic box body 1212 can improve the insulation performance of the box body main body 121 , and the metal box body 1211 can improve the fireproof performance of the box body main body 121 .

[0145] The metal box body 1211 covers the outside of the plastic box body 1212 means that the metal box body 1211 covers at least part of the outer surface of the plastic box body 1212 , for example, the metal box body 1211 covers the entire outer surface of the plastic box body 1212 or covers part of the outer surface of the plastic box body 1212 .

[0146] As an example, the shape of the metal box body 1211 may match the shape of the plastic box body 1212 , and the metal box body 1211 and the plastic box body 1212 are nested to form a double-layer structure.

[0147] In this embodiment, the overlapped edge 12113 and the stress-bearing ribs 1213 are arranged at relative intervals. When the first connector 112 is connected to the second connector 122, for example, when the first connector 112 is inserted into the slot 122a, the force generated when the operator assembles the conductive wire to the electronic control main board 13 causes the stress-bearing ribs 1213 to move toward the overlapped edge 12113. If the stress-bearing ribs 1213 abut against the overlapped edge 12113, it can avoid the stress-bearing ribs 1213 from directly abutting against the plastic box body 1212 to a certain extent, thereby reducing the risk of damage to the plastic box body 1212 and the metal box body 1211.

[0148] In some embodiments, the folded edge 12113 may be a single-layer sheet structure. In other words, the folded edge 12113 may be a single-layer structure formed by folding a metal sheet extending from the metal box body 1211 once.

[0149] In some embodiments, the folded edge 12113 can be folded into a multi-layer structure. In other words, the folded edge 12113 can be a metal sheet extending from the metal box body 1211 that is repeatedly folded into multiple layers to form the folded edge 12113.

[0150] In some embodiments, the second connector 122 and the stress-bearing ribs 1213 may both be plastic structures. For example, the second connector 122, the stress-bearing ribs 1213 and the plastic box body 1212 may be an integrally formed structure.

[0151] For some examples, see Figure 7 The plastic box body 1212 is formed with a reinforcing rib 12121 , and the reinforcing rib 12121 and the folded edge 12113 are respectively located on opposite sides of the same side wall of the plastic box body 1212 .

[0152] In this embodiment, the reinforcing rib 12121 can be located inside the plastic box body 1212. The reinforcing rib 12121 can enhance the structural strength of the portion of the plastic box body 1212 corresponding to the overlapped edge 12113, thereby reducing the risk of local damage to the plastic box body 1212 caused by the force being transmitted to the plastic box body 1212 when the load-bearing rib 1213 abuts against the overlapped edge 12113.

[0153] As an example, the first connector 112 is a plastic structure. When the box cover body 111 includes a plastic box cover 1112 and a metal box cover 1111, the metal box cover 1111 can form a first avoidance opening, and the first connector 112 and the plastic box cover 1112 can be an integrally molded structure. The first avoidance opening is used to avoid the first connector 112.

[0154] As an example, the second connector 122 is a plastic structure. When the box body 121 includes a plastic box body 1212 and a metal box body 1211, the metal box body 1211 can form a second avoidance opening, and the second connector 122 and the plastic box body 1212 can be an integrally molded structure. The second avoidance opening is used to avoid the second connector 122.

[0155] For some examples, see Figure 8 and Fig. 9 The electric control box 1 includes a connector, the second connector 122 forms a fastening hole 122b, the first connector 112 forms a through hole 112c, the box cover body 111 is in a buckled state, and the connector is inserted through the through hole 112c and the fastening hole 122b.

[0156] In this embodiment, the box cover body 111 is in a buckled state, and the connecting piece is passed through the through hole 112c and the fastening hole 122b. The first connector 112 and the second connector 122 can be connected through the connecting piece, so that the connection stability between the box cover body 111 and the box body 121 can be strengthened.

[0157] The connecting parts include but are not limited to screws or bolts.

[0158] As an example, the connection member may be a screw, the fastening hole 122 b may form an internal thread, and the connection member may pass through the through hole 112 c and be threadedly matched with the fastening hole 122 b.

[0159] As an example, the connection member may also include a bolt and a nut. The bolt may pass through the through hole 112 c and the fastening hole 122 b and be threadably matched with the nut.

[0160] In some embodiments, the fastening hole 122b can be spaced apart from the slot 122a along the first direction, and the boss 1223 is located on the side of the slot 122a away from the box body 121. When the box cover body 111 is in the buckled state, the first connector 112 and the slot 122a are at least partially misaligned along the first direction. In this way, the through hole 112c and the fastening hole 122b can be aligned, and the first connector 112 and the boss 1223 will not interfere with each other.

[0161] For some examples, see Figures 3 to 9 There are multiple first connectors 112 , and the multiple first connectors 112 are all plugged into the same second connector 122 .

[0162] In this embodiment, there are multiple first connectors 112 and one second connector 122. The multiple first connectors 112 are all plugged into the same second connector 122, which can take into account both manufacturing requirements and assembly requirements.

[0163] For some examples, see Figures 3 to 8The second connector 122 is located near the middle of the box body 121 along the first direction, and the two first connectors 112 are spaced apart on the box cover body 111 along the first direction, wherein the first direction is perpendicular to the horizontal direction. In this way, the size of the second connector 122 can be relatively small and easy to manufacture.

[0164] For some examples, see Figures 12 to 19 The number of the first connector 112 and the number of the second connector 122 are both multiple, and each first connector 112 corresponds to one second connector 122 .

[0165] In this embodiment, each first connector 112 corresponds to one second connector 122 , and the structures of a single first connector 112 and a single second connector 122 can be simple and easy to manufacture, and the first connector 112 and the second connector 122 can be arranged more flexibly.

[0166] For some examples, see Figures 12 to 19 The two second connectors 122 are respectively disposed at the two ends of the box body 121 along the first direction, and each first connector 112 corresponds to a second connector 122. In this way, the forces on the two second connectors 122 are more balanced.

[0167] For some examples, see Figures 3 to 5 The head assembly 20 includes an air guide shell 21 , the electric control box 1 is connected to the air guide shell 21 , and when the box cover body 111 is in an open state, part of the box cover body 111 is supported above the air guide shell 21 .

[0168] The electric control box 1 is connected to the air guide housing 21, and the air guide housing 21 can provide support for the electric control box 1. For example, the support plate 14 can be fixed to the upper end of the air guide housing 21.

[0169] In this embodiment, during the production process of the production line, the box body 121 can be first assembled to the air guide shell 21, the first connector 112 and the second connector 122 can be plugged in, and then the electric control box 1 and the conductive wire are assembled, and part of the box cover body 111 is supported on the top of the air guide shell 21. The air guide shell 21 can be used to further support the box cover body 111, thereby reducing the force between the first connector 112 and the second connector 122.

[0170] As an example, see Figures 3 to 5 , the first connector 112 can be located near the middle of the box cover body 111 along the first direction. In this way, when the box cover body 111 is in the open state, the first connector 112 will not interfere with the part of the box cover body 111 supported above the air guide shell 21.

[0171] In some embodiments, the heat sink 15 may be located on a side of the control main board close to the air guide housing 21, and when the box cover body 111 is in the open state, the portion of the box cover body 111 with the heat sink 15 is supported above the air guide housing 21. The mass of the heat sink 15 is relatively large, and the side of the box cover assembly 11 close to the heat sink 15 is heavier. When the box cover body 111 is in the open state, the portion of the box cover body 111 with the heat sink 15 is supported above the air guide housing 21, reducing the strength requirements of the first connector 112 and the second connector 122.

[0172] For some examples, see Figures 3 to 5 The head assembly 20 includes a wind wheel and a heat exchanger 22 , and the wind wheel and the box body 121 are located on opposite sides of the heat exchanger 22 .

[0173] The wind wheel is used to drive the air flow.

[0174] The heat exchanger 22 is used to achieve heat exchange between the refrigerant and the airflow.

[0175] As an example, the heat exchanger 22 may be substantially in a plate-shaped structure, and the wind wheel and the box body 121 are located on two opposite sides of the heat exchanger 22 along the thickness direction.

[0176] In this embodiment, the wind wheel drives the airflow to flow through the box body 121 and the heat exchanger 22 in sequence, one end of the heat sink 15 extends to the bottom of the box body 121, and the box body 121 is placed roughly horizontally, that is, the surface with the largest area of ​​the box body 121 is roughly parallel to the horizontal plane, and the thickness direction of the box body 121 is perpendicular to the horizontal direction, which can reduce the obstruction of the box body 121 to the airflow as much as possible, and the airflow can exchange heat with both the heat sink 15 and the heat exchanger 22. The wind wheel and the box body 121 are located on opposite sides of the heat exchanger 22, and the box body 121 and the heat exchanger 22 are roughly on the same airflow path, which is convenient for heat exchange with the airflow, and the structural layout is also more compact.

[0177] In some embodiments, the wind wheel may be located in the wind guide housing 21. The wind guide housing 21 is used to provide a flow guide function for the wind wheel so that the airflow flows along a set path.

[0178] For some examples, see Figures 2 to 3 The head assembly 20 includes a shell 23, which is formed with a accommodating cavity 23a, an air inlet 23b and an air outlet 23c. The air inlet 23b and the air outlet 23c are both connected to the accommodating cavity 23a, and the heat exchanger 22, the electric control box 1 and the wind wheel are all located in the accommodating cavity 23a.

[0179] In this embodiment, the shell 23 provides protection for the heat exchanger 22, the electrical control box 1 and the wind wheel, and the air inlet 23b and the air outlet 23c can be connected to the external environment of the shell 23. During the rotation of the wind wheel, the air from the external environment can enter the accommodating cavity 23a through the air inlet 23b, flow through the electrical control box 1 and the heat exchanger 22, and then be discharged through the air outlet 23c.

[0180] For some examples, see Figure 3 The head assembly 20 includes a support rod 24 , and the lower end of the box body 121 is connected to the support rod 24 .

[0181] As an example, the support rod 24 may be located in the accommodating cavity 23 a , and the support rod 24 may be connected to a portion of the box body 121 away from the heat exchanger 22 .

[0182] In this embodiment, the support rod 24 can support the box body 121 upwards, so that the electric control box 1 is stably assembled, and the support rod 24 can also reduce the obstruction to the airflow.

[0183] For some examples, see Figures 3 to 6 The head assembly 20 includes a compressor 25, and the compressor 25 is located below the box body 121.

[0184] The compressor 25 is used to drive the flow of the refrigerant.

[0185] In this embodiment, the compressor 25 is located below the box body 121 and has a compact structure, which is conducive to the miniaturization of the head assembly 20.

[0186] For some examples, see Figure 3 and Figure 4 One end of the box body 121 is connected to the air guide shell 21 through the support plate 14, and the other end of the box body 121 is connected to the support rod 24. The compressor 25 can be located between the heat exchanger 22 and the support rod 24.

[0187] In this embodiment, the air guide shell 21 and the support rod 24 both provide support for the electric control box 1, and the electric control box 1 has good installation stability. The compressor 25 is located between the heat exchanger 22 and the support rod 24, and the wind wheel drives the airflow to flow through the compressor 25, which can provide heat dissipation and cooling for the compressor 25.

[0188] For some examples, see Figure 2 and Figure 3 The housing 23 may include an annular shell 231, an end cover 232 and a water receiving tray 233. The annular shell 231 is open at both ends in the up and down directions. The end cover 232 closes the upper end opening of the annular shell 231, and the water receiving tray 233 closes the lower end opening of the annular shell 231.

[0189] In this embodiment, the annular housing 231 , the end cover 232 and the water receiving tray 233 together define a receiving chamber 23 a . The water receiving tray 233 can receive condensed water from the heat exchanger 22 .

[0190] In some embodiments, the circumferential wall of the housing 23 forms an air inlet 23b and an air outlet 23c. For example, the annular housing 231 forms the air inlet 23b and the air outlet 23c. The air inlet 23b can be located on the side of the heat exchanger 22 away from the wind wheel, and the air outlet 23c can be located on the side of the heat exchanger 22 close to the wind wheel.

[0191] In some embodiments, the air guide housing 21 may form an air guide channel with openings at opposite ends, the heat exchanger 22 shields one end opening of the air guide housing 21, and the portion of the housing 23 having the air outlet 23c may shield the other end opening of the air guide housing 21. The wind wheel may be located in the air guide channel. In this way, the air guide channel constrains the airflow path, reduces turbulence, and improves the heat exchange efficiency of the heat exchanger 22.

[0192] The heat pump water heater 100 adjusts the water temperature by means of a heat pump. Figure 1 The heat pump water heater 100 includes a water tank assembly 10 and a heat exchanger.

[0193] The water tank assembly 10 is used to store water, and the heat exchanger can exchange heat with the water in the water tank assembly 10 to adjust the temperature of the water in the water tank assembly 10 .

[0194] The water in the water tank assembly 10 can be used to supply users with domestic hot water to meet people's daily needs.

[0195] The heat exchanger 22 and the heat exchanger both circulate refrigerant. For example, the heat exchanger 22, the heat exchanger, the compressor 25 and the throttling device can all be connected through a refrigerant pipeline to form a refrigerant circulation flow path. The compressor 25 drives the refrigerant to circulate in the refrigerant circulation flow path. When the refrigerant flows through the heat exchanger 22, the refrigerant exchanges heat with the airflow through the heat exchanger 22. When the refrigerant flows through the heat exchanger, the refrigerant exchanges heat with the water liquid through the heat exchanger.

[0196] The heat pump water heater 100 may further include a reversing device, which is disposed in the refrigerant circulation path to change the flow direction of the refrigerant discharged by the compressor 25. In this way, the water can be provided with cooling and heating functions, providing hot and cold water to users.

[0197] The reversing device includes but is not limited to a four-way valve.

[0198] The throttling device includes but is not limited to a throttle valve.

[0199] For some examples, see Figure 1 and Figure 2The head assembly 20 can be arranged on the upper part of the water tank assembly 10. The head assembly 20 and the water tank assembly 10 are integrated together, and the heat pump water heater 100 has a compact structure and a beautiful appearance. It is understandable that the head assembly 20 can also be arranged at other positions of the water tank assembly 10.

[0200] The type of refrigerant in the embodiment of the present application is not limited. Exemplarily, the refrigerant includes but is not limited to fluoride refrigerants. For example, the refrigerant may be R290 (propane) refrigerant.

[0201] In the description of the present application, the description with reference to the terms "in one embodiment", "in some 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 different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0202] 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 are included in the protection scope of the present application.

Claims

1. An electric control box, characterized in that: include: The box cover assembly comprises a box cover body and a first plug-in connector; An electric control mainboard, arranged on the box cover body; The box assembly comprises a box body and a second plug-in component, wherein the box cover body has an open state in which it is unfolded relative to the box body, and a buckled state in which it is buckled with the box body; When the box cover body is in the open state, the first connector is inserted into the second connector; when the box cover body is in the engaged state, the first connector and the second connector are disconnected.

2. The electric control box according to claim 1, characterized in that: The second connector forms a slot, and when the box cover body is in the open state, the first connector is inserted into the slot; when the box cover body is in the engaged state, the first connector is out of the slot.

3. The electric control box according to claim 2, characterized in that: The second connector includes a surrounding plate, which extends along the outer peripheral surface of the box body and defines the slot.

4. The electric control box according to claim 3, characterized in that: At least one of the second connectors includes a folded edge, which is connected to the lower end of the enclosure and bent toward the bottom of the slot.

5. The electric control box according to claim 3, characterized in that: The electric control box includes a support plate, which is used to support the box body, and a portion of the support plate extends below at least one of the slots.

6. The electric control box according to claim 2, characterized in that: The second plug-in component forms a boss, and the boss is located at a side of the slot away from the box body. When the box cover body is in the open state, the box cover body abuts against the boss.

7. The electric control box according to claim 1, characterized in that: The first connector and the second connector are both metal structures; or, The first plug-in connector and the second plug-in connector are both made of plastic.

8. The electric control box according to claim 1, characterized in that: The box cover body comprises a metal box cover, and the metal box cover comprises a first side wall and a second side wall, wherein the second side wall is connected to the first side wall and extends in a direction away from the first side wall, and the first connector is connected to both the first side wall and the second side wall.

9. The electric control box according to claim 1, characterized in that: The box body includes a metal box body, and the metal box body includes a third side wall and a fourth side wall. The fourth side wall is connected to the third side wall and extends in a direction away from the third side wall. The second connector is connected to both the third side wall and the fourth side wall.

10. The electric control box according to claim 1, characterized in that: The first connector is formed with a first hole and a second hole. The opening direction of the first hole is opposite to the opening direction of the second hole. The first hole and the second hole are staggered.

11. The electric control box according to claim 1, characterized in that: The box cover body comprises a metal box cover and a plastic box cover, wherein the metal box cover covers the outside of the plastic box cover, and the metal box cover comprises an extension portion, and the extension portion covers at least a part of the surface of the first plug-in connector.

12. The electric control box according to claim 11, characterized in that: The extension is folded into a multi-layer structure.

13. The electric control box according to claim 1, characterized in that: The box body includes a metal box body and a plastic box body, the metal box body covers the outside of the plastic box body, the box body includes a load-bearing rib arranged below the second connector, the metal box body includes a folded edge, the folded edge is located on the side of the load-bearing rib close to the plastic box body, and the folded edge is used to abut against the load-bearing rib.

14. The electric control box according to claim 13, characterized in that: The plastic box body is formed with reinforcing ribs, and the reinforcing ribs and the folded edges are respectively located on opposite sides of the same side wall of the plastic box body.

15. The electric control box according to claim 1, characterized in that: The electric control box includes a connecting piece, the second plug-in piece forms a fastening hole, the first plug-in piece forms a through hole, the box cover body is in the buckled state, and the connecting piece is inserted through the through hole and the fastening hole.

16. The electric control box according to any one of claims 1 to 15, characterized in that: There are multiple first connectors, and the multiple first connectors are all plugged into the same second connector.

17. The electric control box according to any one of claims 1 to 15, characterized in that: There are multiple first connectors and multiple second connectors, and each first connector corresponds to one second connector.

18. A head assembly, characterized in that: An electric control box comprising any one of claims 1 to 17.

19. The head assembly according to claim 18, characterized in that: The head assembly includes an air guide shell, the electric control box is connected to the air guide shell, and when the box cover body is in the open state, part of the box cover body is supported above the air guide shell.

20. The head assembly according to claim 18, characterized in that The head assembly comprises a wind wheel and a heat exchanger, wherein the wind wheel and the box body are located on two opposite sides of the heat exchanger.

21. The head assembly according to claim 20, characterized in that The head assembly includes a shell, the shell is formed with a accommodating cavity, an air inlet and an air outlet, the air inlet and the air outlet are both connected to the accommodating cavity, and the heat exchanger, the electric control box and the wind wheel are all located in the accommodating cavity.

22. The head assembly according to claim 18, characterized in that The head assembly comprises a support rod, and the lower end of the box body is connected to the support rod.

23. The head assembly according to claim 18, characterized in that The head assembly includes a compressor, and the compressor is located below the box body.

24. A heat pump water heater, characterized in that: A nose assembly comprising any one of claims 18 to 23.

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