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

Abstract

The utility model 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, a box body assembly and a reinforcing piece, the box cover assembly is arranged on the box body assembly, the box body assembly comprises a bearing box body, the bearing box body comprises a first shell and a second shell, the first shell comprises a first connecting part, and the second shell comprises a second connecting part; the second shell comprises a body and a second connecting part connected with the body, and the body extends from the first shell in the direction away from the box cover assembly; the reinforcing piece comprises a reinforcing column, and at least part of the reinforcing column penetrates through the first connecting part and the second connecting part. The first connecting part and the second connecting part are connected through the reinforcing columns, the fastening points are additionally arranged between the first shell and the second shell, the structural strength of the electric control box is improved, and the first shell and the second shell are not damaged under the condition that the first shell and the second shell are impacted or jolted. The risk of deformation or breakage of the corner positions of the first shell and the body can be reduced to a certain extent.

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 statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Taking heat pump water heaters as an example, electrical equipment uses an electronic control box to provide control functions and achieve automated control of the heat pump water heater. In related technologies, the electronic control box consists of an upper cover, a lower cover, and an electronic control motherboard. The upper cover is located above the lower cover, and the electronic control motherboard is located in the chamber formed by the upper and lower covers. The lower cover needs to bear the weight of the upper cover, the electronic control motherboard, and other structures. During product transportation or use, the lower cover is prone to partial deformation or even fracture. Utility Model Content

[0004] In view of this, the present application hopes to provide an electric control box, a head assembly and a heat pump water heater, which can improve the structural strength of the electric control box.

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

[0006] Box cover assembly;

[0007] A box body assembly, wherein the box cover assembly is disposed on the box body assembly, the box body assembly includes a load-bearing box body, the load-bearing box body includes a first shell and a second shell, the first shell includes a first intersecting portion, the second shell includes a body and a second intersecting portion connected to the body, and the body extends from the first shell in a direction away from the box cover assembly;

[0008] The reinforcement member includes a reinforcement column, at least a portion of which passes through the first intersection portion and the second intersection portion.

[0009] In some embodiments, the first intersecting portion and the second intersecting portion are both engaged with the reinforcement column to prevent rotation.

[0010] In some embodiments, a plurality of the reinforcing members are spaced apart at the first intersection portion and the second intersection portion.

[0011] In some embodiments, the first intersection forms a first hole, the second intersection forms a second hole, the first hole is a non-circular hole, the second hole is a non-circular hole, and the contour shape of the portion where the reinforcement column passes through the first hole and the second hole is non-circular.

[0012] In some embodiments, the load-bearing box body is a one-piece structure; and / or, the load-bearing box body is a sheet metal structure.

[0013] In some embodiments, the box cover assembly is arranged above the box body assembly, the body is located on a side of the second joint portion away from the first shell in a first direction, the first joint portion and the second joint portion are stacked in a second direction, and the reinforcing column is arranged through the first joint portion and the second joint portion in the second direction, wherein the first direction, the second direction, and the up-down direction are perpendicular to each other.

[0014] In some embodiments, the reinforcing member includes a rivet.

[0015] In some embodiments, the electric control box includes a support plate, the support plate includes a support portion, the support portion is supported below the first shell, and the support portion extends below the first joint portion.

[0016] In some embodiments, in the up-down direction, the distance between the support portion and the reinforcing member is L1, and L1≤20mm.

[0017] In some embodiments, the body is located on a side of the second joint portion away from the first shell in a first direction, and a distance between an end of the support portion close to the body and the reinforcing member in the first direction is L2, and L2≥0mm, the first direction being perpendicular to the up-down direction.

[0018] In some embodiments, the support portion forms a folded edge bent away from a side of the box cover assembly.

[0019] Embodiments of the present application provide a machine head assembly, including the electric control box of any one of the above.

[0020] In some embodiments, the machine head assembly includes an air guide shell, the first shell is connected with the air guide shell; and / or,

[0021] The machine head assembly includes a support rod, and the body is connected with the support rod.

[0022] Embodiments of the present application provide a heat pump water heater, including the machine head assembly of any one of the above.

[0023] The electric control box provided in the embodiment of the present application has a main body extending from the first shell in a direction away from the box cover assembly, and there is a corner at the connection between the first shell and the main body. The first intersection and the second intersection are connected by a reinforcing column, and fastening points are added between the first shell and the second shell to improve the structural strength of the electric control box. There are multiple connection positions between the first shell and the second shell, and the multiple connection positions are mutually constrained. When the first shell and the second shell are impacted or bumped, the risk of the first shell and the second shell rotating is reduced. In this way, the risk of deformation or breakage at the corner position of the first shell and the main body can be reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a heat pump water heater in one embodiment of the present application;

[0025] Figure 2 Schematic diagram of the structure of the head assembly in one embodiment of the present application;

[0026] Figure 3 for Figure 2 A schematic diagram of a partial structure of the head assembly from another perspective, wherein the end cap is not shown;

[0027] Figure 4 for Figure 3 Schematic cross-sectional view in the AA direction;

[0028] Figure 5 for Figure 2 An exploded schematic diagram of a partial structure of the nose assembly is shown;

[0029] Figure 6 This is a structural diagram of a load-bearing box and a support plate in one embodiment of the present application;

[0030] Figure 7 for Figure 6 Schematic cross-sectional view in the middle BB direction;

[0031] Figure 8 for Figure 6 Schematic cross-sectional view in CC direction;

[0032] Figure 9 for Figure 6 Schematic diagram of another view of the structure shown.

[0033] Description of Reference Numerals

[0034] 100. Heat pump water heater; 10. Head assembly; 20. Water tank assembly;

[0035] 1, electric control box; 11, box cover assembly; 12, box body assembly; 12a, via hole; 121, bearing box body; 1211, first shell; 12111, first joint; 12111a, first hole; 1212, second shell; 12121, body; 12122, second joint; 122, plastic box body; 13, reinforcing piece; 131, reinforcing column; 14, supporting plate; 141, supporting part; 1411, folded edge; 142, supporting part; 15, cooling fin;

[0036] 2, air guide shell; 3, supporting rod; 4, heat exchanger; 5, shell; 501, annular shell; 502, end cover; 503, water pan; 6, compressor. DETAILED DESCRIPTION

[0037] In the case of no conflict, the embodiments in the application and the technical features in the embodiments can be combined with each other, and the detailed description in the specific embodiments should be understood as the explanation and description of the purpose of the application, and should not be regarded as improper limitation of the application.

[0038] It should be noted that in the embodiments of the application, down refers to the direction of the ground, and up is opposite to down. In the embodiments of the application, the orientation or positional relationship such as "up", "down", "first direction" and "second direction" is based on the orientation or positional relationship shown in the drawings. It should be understood that these orientation terms are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application. The application will be further described in detail below in combination with the drawings and specific embodiments.

[0039] It should be noted that in the embodiments of the application, a plurality of includes two and more than two.

[0040] Please refer to Figures 1 to 3 , the electric control box 1 is used to provide control function for electrical equipment, for example, the electric control box 1 can control electrical equipment to switch on or off or mode selection and the like. The electrical equipment includes but is not limited to heat pump water heater 100. It can be understood that the electric control box 1 can also be used for electrical equipment other than the heat pump water heater 100, for example, heat pump air conditioning equipment. The embodiments of the application take the heat pump water heater 100 as an example for description.

[0041] Please refer to Figures 2 to 3 , the application provides a head assembly 10, the head assembly 10 includes the electric control box 1 in any one of the embodiments of the application.

[0042] The head assembly 10 can be used for the heat pump water heater 100, and the head assembly 10 can integrate at least part of the electrical components in the heat pump water heater 100.

[0043] See also Figures 1 to 3 The embodiment of the present application provides a heat pump water heater 100, which includes the head assembly 10 of any embodiment of the present application. In other words, the electric control box 1 provided in the embodiment of the present application can be used in the heat pump water heater 100.

[0044] The heat pump water heater 100 may also be a variable frequency heat pump water heater, that is, the electronic control mainboard may be provided with a frequency converter, the compressor 6 may be a variable frequency compressor, and the frequency converter may adjust the frequency of the variable frequency compressor.

[0045] In the related art, the lower cover has a first part and a second part, and the second part is connected to one side of the first part in the horizontal direction and protrudes downward, that is, the size of the first part in the up and down direction is smaller than the size of the second part in the up and down direction, which leads to weak points in strength at the corners of the first part and the second part. There is usually a difference in the loads borne by the first part and the second part. When the electric control box is subjected to external forces, for example, the electric control box is bumped or impacted during transportation, or the electric control box falls and causes impact, the first part and the second part are prone to rotate with the corner as the rotation center, causing the first part and the second part to deform, or even break, thereby damaging the lower cover.

[0046] See also Figures 4 to 9 An embodiment of the present application provides an electric control box 1 , which includes a box cover assembly 11 , a box body assembly 12 and a reinforcement member 13 .

[0047] The box cover assembly 11 is arranged on the box body assembly 12. The box cover assembly 11 and the box body assembly 12 jointly define a placement cavity, which is used to place the electronic control mainboard.

[0048] The box body assembly 12 includes a load-bearing box body 121, which includes a first shell 1211 and a second shell 1212. The first shell 1211 includes a first intersecting portion 12111, and the second shell 1212 includes a main body 12121 and a second intersecting portion 12122 connected to the main body 12121. The main body 12121 extends from the first shell 1211 in a direction away from the box cover assembly 11. The reinforcement member 13 includes a reinforcement column 131, at least a portion of which is disposed through the first intersecting portion 12111 and the second intersecting portion 12122.

[0049] The load-bearing box body 121 is a structure for bearing the weight of the electric control box 1 .

[0050] The body 12121 extends from the first shell 1211 in a direction away from the cover assembly 11 . That is, the body 12121 is connected to the first shell 1211 and the body 12121 protrudes from the first shell 1211 in a direction away from the cover assembly 11 .

[0051] At least a portion of the reinforcement column 131 is disposed through the first intersection portion 12111 and the second intersection portion 12122. This means that the reinforcement column 131 may be partially disposed through the first intersection portion 12111 and the second intersection portion 12122, or the reinforcement column 131 may be entirely disposed through the first intersection portion 12111 and the second intersection portion 12122. The reinforcement column 131 connects the first intersection portion 12111 and the second intersection portion 12122.

[0052] The electric control box 1 provided in the embodiment of the present application has a main body 12121 extending from the first shell 1211 in a direction away from the box cover assembly 11. There is a corner at the connection between the first shell 1211 and the main body 12121. The first intersection portion 12111 and the second intersection portion 12122 are connected by a reinforcing column 131, and fastening points are added between the first shell 1211 and the second shell 1212 to improve the structural strength of the electric control box 1. There are multiple connection positions between the first shell 1211 and the second shell 1212, and the multiple connection positions are mutually constrained. When the first shell 1211 and the second shell 1212 are impacted or bumped, the risk of the first shell 1211 and the second shell 1212 rotating is reduced. In this way, the risk of deformation or breakage at the corner position between the first shell 1211 and the main body 12121 can be reduced to a certain extent.

[0053] In one embodiment, the first intersecting portion 12111 and the second intersecting portion 12122 are both engaged with the reinforcing column 131 to prevent rotation.

[0054] The first intersecting portion 12111 and the second intersecting portion 12122 are both engaged with the reinforcing column 131 to prevent rotation, which means that the first intersecting portion 12111 cannot rotate relative to the reinforcing column 131 , and the second intersecting portion 12122 cannot rotate relative to the reinforcing column 131 .

[0055] In this embodiment, the first intersection portion 12111 and the second intersection portion 12122 are both engaged with the reinforcement column 131 to prevent rotation. When the first shell 1211 and the second shell 1212 are both impacted or bumped, the first shell 1211 and the second shell 1212 are difficult to rotate. In this way, the risk of deformation or breakage at the corners of the first shell 1211 and the main body 12121 can be reduced to a certain extent.

[0056] In one embodiment, please refer to Figure 8 There are two first intersection parts 12111 and two second intersection parts 12122. The second intersection parts 12122 can be spaced apart at both ends of the main body 12121. Each second intersection part 12122 corresponds to a first intersection part 12111. Each first intersection part 12111 and second intersection part 12122 is provided with at least one reinforcement column 131.

[0057] For example, the second connecting portions 12122 may be spaced apart at both ends of the body 12121 along the width direction, and the first shell 1211 may be connected to one end of the body 12121 along the length direction.

[0058] In this embodiment, the two first intersecting portions 12111 and the second intersecting portions 12122 can provide more fixing positions, thereby improving reliability.

[0059] In some embodiments, the electric control box 1 includes an electric control mainboard. The box cover assembly 11 and the box body assembly 12 jointly define a placement cavity, and the electric control mainboard is disposed in the placement cavity.

[0060] The electronic control main board is a key component of the electronic control box 1 . The electronic control main board provides control functions. The electronic control main board may be a circuit board provided with circuits and electrical components.

[0061] The electronic control motherboard 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 6, a throttling device, an electronic control switch, a display panel, and a sensor.

[0062] For some examples, see Figure 4 The electrical control box 1 includes a heat sink 15. One end of the heat sink 15 can be fixed to the front of the electrical control mainboard, and the other end of the heat sink 15 can extend to the outside of the electrical control box 1. For example, the other end of the heat sink 15 can extend below the box assembly 12. The heat sink 15 can transfer heat generated by the electrical control mainboard and electrical components to the external environment of the electrical control box 1, thereby reducing the temperature of the electrical control mainboard and electrical components, achieving the purpose of heat dissipation and cooling.

[0063] The heat sink 15 can be made of a good thermal conductor material such as aluminum or copper.

[0064] For some examples, see Figure 4 and Figure 5 , the load-bearing box body 121 is placed roughly horizontally. In other words, the surface with the largest area of ​​the load-bearing box body 121 is roughly parallel to the horizontal plane, and the thickness direction of the load-bearing box body 121 is perpendicular to the horizontal direction.

[0065] In this embodiment, the front of the electronic control motherboard faces downward, the heat sink 15 and the electrical components are both arranged on the front, and the box body assembly 12 can form a through hole 12a that passes through the lower side wall of the first shell 1211. The heat sink 15 can extend through the through hole 12a to the bottom of the load-bearing box body 121. The size of the first shell 1211 in the up and down direction is smaller than the size of the second shell 1212 in the up and down direction, so that the heat sink 15 can extend to the bottom of the load-bearing box body 121 when the size along the up and down direction is shorter, and the structure is compact.

[0066] In one embodiment, multiple reinforcement members 13 are spaced apart between the first intersection 12111 and the second intersection 12122. In other words, the first intersection 12111 and the second intersection 12122 are connected by multiple reinforcement members 13. Thus, the multiple reinforcement members 13 can further prevent the first shell 1211 and the second shell 1212 from rotating around a single reinforcement column 131.

[0067] In one embodiment, please refer to Figures 7 to 9 First intersection 12111 forms a first hole 12111a, and second intersection 12122 forms a second hole. First hole 12111a is non-circular, and so is the second hole. The portion where reinforcement post 131 passes through first and second holes has a non-circular outline. Specifically, reinforcement post 131 passes through first and second holes to connect first intersection 12111 and second intersection 12122.

[0068] The first hole 12111a being a non-circular hole means that the cross-sectional shape of the first hole 12111a is not circular.

[0069] For example, the cross-sectional shape of the first hole 12111a can be polygonal or irregular, for example, the cross-sectional shape of the first hole 12111a can be triangular, quadrilateral, pentagonal, hexagonal, etc.

[0070] The irregular shape refers to an irregular shape. For example, the irregular shape may be any shape other than a regular shape such as a circle, an ellipse or a polygon.

[0071] The second hole being a non-circular hole means that the cross-sectional shape of the second hole is not circular.

[0072] For example, the cross-sectional shape of the second hole can be polygonal or irregular, for example, the cross-sectional shape of the second hole can be triangle, quadrilateral, pentagon or hexagon, etc.

[0073] The non-circular contour of the portion where the reinforcement column 131 passes through the first hole 12111a and the second hole means that the non-circular contour of the portion where the reinforcement column 131 passes through the first hole 12111a and the second hole is not circular.

[0074] For example, the portion where the reinforcement column 131 passes through the first hole 12111a and the second hole has a polygonal or irregular shape. For example, the portion where the reinforcement column 131 passes through the first hole 12111a and the second hole has a triangle, a quadrilateral, a pentagon, a hexagon, or the like.

[0075] In this embodiment, the first hole 12111a is a non-circular hole, the second hole is a non-circular hole, and the contour shape of the part where the reinforcement column 131 passes through the first hole 12111a and the second hole is non-circular, which increases the friction resistance between the first hole 12111a, the second hole and the reinforcement column 131, and can further prevent the first shell 1211 and the second shell 1212 from rotating around the reinforcement column 131.

[0076] In one embodiment, the cross-sectional shape of the first hole 12111 a may be the same as or different from the contour shape of the portion where the reinforcement column 131 passes through the first hole 12111 a .

[0077] In one embodiment, the cross-sectional shape of the second hole may be the same as or different from the contour shape of the portion where the reinforcement column 131 passes through the second hole.

[0078] In one embodiment, the reinforcement member 13 includes a blocking piece connected to one end of the reinforcement column 131 . The blocking piece can abut against one of the first intersection portion 12111 and the second intersection portion 12122 to limit the movement of the reinforcement member 13 .

[0079] In one embodiment, the load-bearing box body 121 is an integrally formed structure, which increases the structural strength of the load-bearing box body 121 and reduces the number of assembly steps required.

[0080] In one embodiment, the load-bearing box body 121 may be a metal structure made of metal material.

[0081] In one embodiment, the load-bearing box body 121 is a sheet metal structure. In other words, the load-bearing box body 121 can be a structure manufactured by sheet metal technology, and the production cost is relatively low.

[0082] The sheet metal structure refers to a structure formed by cold working such as stamping, shearing or bending a metal plate. For example, the load-bearing box body 121 can be a structure formed by cold working such as stamping, shearing or bending a metal plate.

[0083] In one embodiment, please refer to Figures 3 to 9 The box cover assembly 11 is arranged above the box body assembly 12, the main body 12121 is located on the side of the second intersection 12122 away from the first shell 1211 along the first direction, the first intersection 12111 and the second intersection 12122 are stacked along the second direction, and the reinforcement column 131 is passed through the first intersection 12111 and the second intersection 12122 along the second direction, wherein the first direction, the second direction and the up and down directions are perpendicular to each other.

[0084] Taking the load-bearing box body 121 as a sheet metal structure as an example, the main body 12121 can be bent downward based on the first shell 1211, and the size of the main body 12121 in the up and down direction is larger than the size of the first shell 1211 in the up and down direction.

[0085] Illustratively, the two second junction portions 12122 may connect two ends of the body 12121 along the second direction.

[0086] In this embodiment, the main body 12121 protrudes downward from the first shell 1211, and the reinforcement column 131 is arranged along the second direction through the first intersection portion 12111 and the second intersection portion 12122. When the first shell 1211 and the main body 12121 bear loads, the connection between the first shell 1211 and the main body 12121 and the reinforcement column 131 can effectively bear the load, thereby reducing the risk of relative rotation of the first shell 1211 and the main body 12121 in the up and down directions to a certain extent, thereby improving the structural strength.

[0087] In some embodiments, the reinforcement member 13 may be an integrally formed structure.

[0088] The reinforcement member 13 can be made of metal.

[0089] In one embodiment, the reinforcement member 13 includes a rivet. The rivet can utilize its own shape or deformation of the connected components to securely connect the two first intersections 12111 and the second intersection 12122. The rivet can rivet the first intersection 12111 and the second intersection 12122 into a whole, making the assembly method simple and convenient.

[0090] Rivets include but are not limited to pull rivets, compression rivets, expansion rivets, etc.

[0091] The first intersection portion 12111 and the second intersection portion 12122 can both be sheet-like structures. In one embodiment, the load-bearing box body 121 can be a sheet metal structure, that is, the load-bearing box body 121 can be a structure formed by a metal plate through sheet metal processes such as stamping and bending. The first intersection portion 12111 and the second intersection portion 12122 can both be sheet-like structures, and the thickness of the first intersection portion 12111 and the thickness of the second intersection portion 12122 are both parallel to the second direction and overlapped along the second direction.

[0092] In one embodiment, please refer to Figures 5 to 9 The electric control box 1 includes a support plate 14 , which includes a support portion 141 . The support portion 141 is supported below the first shell 1211 , and extends to below the first junction portion 12111 .

[0093] The support portion 141 extending below the first intersecting portion 12111 means that, with a plane perpendicular to the up-down direction as a projection plane, the first intersecting portion 12111 and the support portion 141 at least partially overlap.

[0094] In this embodiment, the support portion 141 contacts the lower portion of the first shell 1211, thereby supporting the box cover assembly 11, the box body assembly 12 and other structures upward. The support portion 141 extends to the bottom of the first intersection portion 12111, thereby strengthening the strength of the first intersection portion 12111 and further reducing the risk of deformation of the first intersection portion 12111 and the second intersection portion 12122.

[0095] In one embodiment, please refer to Figure 9 In the vertical direction, the distance between the support portion 141 and the reinforcement 13 is L1, where L1 is ≤ 20 mm. For example, L1 can be 2 mm, 3 mm, 5 mm, 8 mm, 10 mm, 15 mm, 18 mm, or 20 mm. A relatively small distance between the support portion 141 and the reinforcement 13 shortens the force transmission path and improves force-bearing performance.

[0096] In one embodiment, please refer to Figure 9 The main body 12121 is located on the side of the second intersection 12122 away from the first shell 1211 along the first direction, and the distance between the end of the support portion 141 close to the main body 12121 and the reinforcement 13 in the first direction is L2, L2≥0mm, and the first direction is perpendicular to the up and down direction.

[0097] The distance between one end of the support portion 141 close to the body 12121 and the reinforcement 13 in the first direction can be: the distance between the projection of one end of the support portion 141 close to the body 12121 and the projection of the reinforcement 13 with a plane perpendicular to the up and down directions as the projection plane.

[0098] Illustratively, L2 can be 0 mm, 0.2 mm, 0.5 mm, 1 mm, 2 mm, 3 mm, 5 mm or 8 mm, etc.

[0099] In this embodiment, L2 is not less than 0 mm, that is, in the first direction, the end of the support portion 141 close to the main body 12121 is flush with or exceeds the end of the reinforcement 13 close to the main body 12121. The larger L2 is, the more contact points the support portion 141 has with the first shell 1211, thereby strengthening the strength of the first shell 1211. The closer the support portion 141 is to the corner of the first shell 1211 and the main body 12121, the better the upward supporting effect of the support portion 141.

[0100] In one embodiment, please refer to Figures 7 to 9 The support portion 141 forms a folded edge 1411 that is bent toward a side away from the box cover assembly 11. Specifically, the folded edge 1411 is bent downward.

[0101] In this embodiment, the folded edge 1411 can enhance the structural strength of the support portion 141 and improve the support effect of the support portion 141. The folded edge 1411 is folded away from the box cover assembly 11, and can also avoid interference between the folded edge 1411 and other parts.

[0102] In some embodiments, the box cover assembly 11 includes a metal box cover and a plastic box cover, and the metal box cover covers the outside of the plastic box cover.

[0103] The plastic box cover can improve the insulation performance of the box cover assembly 11, and the metal box cover can improve the fireproof performance of the box cover assembly 11.

[0104] The metal box cover covering the outside of the plastic box cover means that the metal box cover covers at least part of the outer surface of the plastic box cover, for example, the metal box cover covers the entire outer surface of the plastic box cover or covers part of the outer surface of the plastic box cover.

[0105] For example, the shape of the metal box cover can be matched with the shape of the plastic box cover, and the metal box cover and the plastic box cover can be nested to form a double-layer structure.

[0106] In some embodiments, referring to Figure 4 and Figure 5 , the box body assembly 12 includes a plastic box body 122, and the load-bearing box body 121 covers the outside of the plastic box body 122.

[0107] The plastic box body 122 can improve the insulation performance of the box body assembly 12, and the load-bearing box body 121 can improve the fireproof performance of the box body assembly 12.

[0108] The load-bearing box body 121 covering the outside of the plastic box body 122 means that the load-bearing box body 121 covers at least part of the outer surface of the plastic box body 122, for example, the load-bearing box body 121 covers the entire outer surface of the plastic box body 122 or covers part of the outer surface of the plastic box body 122.

[0109] For example, the shape of the load-bearing box body 121 can be matched with the shape of the plastic box body 122, and the load-bearing box body 121 and the plastic box body 122 can be nested to form a double-layer structure.

[0110] In an embodiment, referring to Figures 2 to 7 , the handpiece assembly 10 includes the air guide shell 2, and the first shell 1211 is connected with the air guide shell 2.

[0111] For example, the first shell 1211 is connected with the air guide shell 2 through the supporting plate 14. For example, the supporting plate 14 is connected with the upper side wall of the air guide shell 2.

[0112] For example, the supporting plate 14 includes a supporting portion 142, the supporting portion 142 is connected with the support portion 141, and the supporting portion 142 is connected with the upper side wall of the air guide shell 2.

[0113] In this embodiment, the air guide housing 2 provides an upward supporting force for the electric control box 1 , and is used to support and fix the electric control box 1 .

[0114] As an example, both the supporting portion 142 and the supporting portion 141 may be plate-shaped structures.

[0115] In one embodiment, please refer to Figures 2 to 7 The head assembly 10 includes a support rod 3, and the body 12121 is connected to the support rod 3.

[0116] Exemplarily, the support rod 3 is connected to the lower portion of the body 12121. For example, the support rod 3 is connected to the lower side wall of the body 12121.

[0117] In this embodiment, the support rod 3 provides an upward supporting force for the electric control box 1 , so as to support and fix the electric control box 1 .

[0118] For some examples, see Figures 2 to 7 The head assembly 10 includes a wind wheel and a heat exchanger 4 , and the wind wheel and the box assembly 12 are located on opposite sides of the heat exchanger 4 .

[0119] The wind wheel is used to drive the air flow.

[0120] The heat exchanger 4 is used to realize heat exchange between the refrigerant and the air flow.

[0121] As an example, the heat exchanger 4 may be a substantially plate-shaped structure, with the wind wheel and the box assembly 12 located on opposite sides of the heat exchanger 4 along the thickness direction.

[0122] In this embodiment, the wind wheel drives the airflow through the box assembly 12 and the heat exchanger 4 in sequence. One end of the heat sink 15 extends below the first shell 1211. The box assembly 12 is positioned approximately horizontally. That is, the largest surface of the box assembly 12 is approximately parallel to the horizontal plane, and the thickness of the box assembly 12 is perpendicular to the horizontal direction. This minimizes the obstruction of the airflow by the box assembly 12, allowing the airflow to exchange heat with both the heat sink 15 and the heat exchanger 4. The wind wheel and the box assembly 12 are located on opposite sides of the heat exchanger 4. The box assembly 12 and the heat exchanger 4 are approximately on the same airflow path, facilitating heat exchange with the airflow, improving energy efficiency, and achieving a more compact structural layout.

[0123] In some embodiments, the wind wheel may be located in the wind guide housing 2. The wind guide housing 2 is used to provide a flow guide for the wind wheel so that the airflow flows along a set path.

[0124] For some examples, see Figures 2 to 4 The head assembly 10 includes a shell 5, which 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 4, the electric control box 1 and the wind wheel are all located in the accommodating cavity.

[0125] In this embodiment, the shell 5 provides protection for the heat exchanger 4, the electronic control box 1 and the wind wheel, and the air inlet and the air outlet can be connected to the external environment of the shell 5. During the rotation of the wind wheel, the air from the external environment can enter the accommodating cavity through the air inlet, flow through the electronic control box 1 and the heat exchanger 4, and then be discharged through the air outlet.

[0126] For some examples, see Figures 2 to 7 The support rod 3 can be located in the accommodating cavity, and the support rod 3 can be connected to a portion of the body 12121 away from the heat exchanger 4.

[0127] In this embodiment, the support rod 3 can support the box body assembly 12 upward, so that the electric control box 1 is stably assembled, and the support rod 3 can also reduce the obstruction to the airflow.

[0128] For some examples, see Figures 2 to 5 The head assembly 10 includes a compressor 6, which is located below the box body assembly 12.

[0129] The compressor 6 is used to drive the flow of refrigerant.

[0130] In this embodiment, the compressor 6 is located below the box body assembly 12 and has a compact structure, which is conducive to the miniaturization of the head assembly 10.

[0131] For some examples, see Figures 2 to 5 One end of the box body assembly 12 is connected to the air guide shell 2 through the support plate 14, and the other end of the box body assembly 12 is connected to the support rod 3. The compressor 6 can be located between the heat exchanger 4 and the support rod 3.

[0132] In this embodiment, the air guide housing 2 and the support rod 3 both provide support for the electronic control box 1, ensuring a secure installation of the electronic control box 1. The compressor 6 is located between the heat exchanger 4 and the support rod 3. The wind wheel drives the airflow through the compressor 6, providing heat dissipation and cooling for the compressor 6.

[0133] For some examples, see Figures 2 to 5 The outer shell 5 may include an annular shell 501, an end cover 502 and a water receiving tray 503. The annular shell 501 is open at both ends in the up and down directions. The end cover 502 closes the upper end opening of the annular shell 501, and the water receiving tray 503 closes the lower end opening of the annular shell 501.

[0134] In this embodiment, the annular housing 501 , the end cover 502 and the water receiving tray 503 together define a receiving cavity. The water receiving tray 503 can receive condensed water from the heat exchanger 4 .

[0135] In some embodiments, the circumferential wall of the housing 5 forms an air inlet and an air outlet. For example, the annular housing 501 forms the air inlet and the air outlet. The air inlet can be located on the side of the heat exchanger 4 away from the wind wheel, and the air outlet can be located on the side of the heat exchanger 4 closer to the wind wheel.

[0136] In some embodiments, the air guide housing 2 can form an air guide channel with openings at opposite ends. The heat exchanger 4 shields one opening of the air guide housing 2, and the portion of the housing 5 with the air outlet shields the other opening of the air guide housing 2. The impeller can be located within 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 4.

[0137] The heat pump water heater 100 regulates the water temperature by means of a heat pump. Figure 1 The heat pump water heater 100 includes a water tank assembly 20 and a heat exchanger.

[0138] The water tank assembly 20 is used to store water, and the heat exchanger can exchange heat with the water in the water tank assembly 20 to adjust the temperature of the water in the water tank assembly 20.

[0139] The water in the water tank assembly 20 can be used to supply users with domestic hot water to meet people's daily needs.

[0140] Refrigerant flows through both heat exchanger 4 and the heat exchanger. For example, heat exchanger 4, heat exchanger, compressor 6, and throttling device can be connected via a refrigerant pipe to form a refrigerant circulation path. Compressor 6 drives the refrigerant to circulate in the refrigerant circulation path. When the refrigerant flows through heat exchanger 4, the refrigerant exchanges heat with the airflow through heat exchanger 4. When the refrigerant flows through the heat exchanger, the refrigerant exchanges heat with the water through the heat exchanger.

[0141] The heat pump water heater 100 may further include a reversing device, which is provided in the refrigerant circulation path to change the flow direction of the refrigerant discharged by the compressor 6. In this way, the water can be provided with cooling and heating functions, providing hot and cold water to users.

[0142] The reversing device includes but is not limited to a four-way valve.

[0143] The throttling device includes but is not limited to a throttle valve.

[0144] For some examples, see Figure 1 The head assembly 10 can be arranged on the upper part of the water tank assembly 20. The head assembly 10 and the water tank assembly 20 are integrated together, and the heat pump water heater 100 has a compact structure and beautiful appearance. It is understandable that the head assembly 10 can also be arranged at other positions of the water tank assembly 20.

[0145] The refrigerant type in the embodiment of the present application is not limited. For example, the refrigerant includes but is not limited to fluoride refrigerants. For example, the refrigerant can be R290 (propane) refrigerant.

[0146] In the description of this application, the reference terms "in one embodiment", "in some 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 can be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0147] 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: Box cover assembly; A box body assembly, wherein the box cover assembly is disposed on the box body assembly, the box body assembly includes a load-bearing box body, the load-bearing box body includes a first shell and a second shell, the first shell includes a first intersecting portion, the second shell includes a body and a second intersecting portion connected to the body, and the body extends from the first shell in a direction away from the box cover assembly; The reinforcement member includes a reinforcement column, at least a portion of which passes through the first intersection portion and the second intersection portion.

2. The electric control box according to claim 1, characterized in that: The first intersecting portion and the second intersecting portion are both engaged with the reinforcing column to prevent rotation.

3. The electric control box according to claim 1, characterized in that: The plurality of reinforcing members are arranged at intervals at the first intersection portion and the second intersection portion.

4. The electric control box according to claim 1, characterized in that: The first intersection forms a first hole, the second intersection forms a second hole, the first hole is a non-circular hole, the second hole is a non-circular hole, and the contour shape of the part where the reinforcement column passes through the first hole and the second hole is non-circular.

5. The electric control box according to claim 1, characterized in that: The load-bearing box body is an integrally formed structure; and / or the load-bearing box body is a sheet metal structure.

6. The electric control box according to claim 1, characterized in that: The box cover assembly is arranged above the box body assembly, the main body is located on the side of the second intersection portion away from the first shell along the first direction, the first intersection portion and the second intersection portion are stacked along the second direction, and the reinforcement column is passed through the first intersection portion and the second intersection portion along the second direction, wherein the first direction, the second direction and the up and down directions are perpendicular to each other.

7. The electric control box according to claim 1, characterized in that: The reinforcement member includes a rivet.

8. The electric control box according to any one of claims 1 to 7, characterized in that: The electric control box includes a supporting plate, and the supporting plate includes a supporting portion. The supporting portion is supported below the first shell and extends to below the first connecting portion.

9. The electric control box according to claim 8, characterized in that: In the up-down direction, the distance between the support portion and the reinforcement member is L1, and L1 is ≤ 20 mm.

10. The electric control box according to claim 8, characterized in that: The body is located on a side of the second intersection away from the first shell along the first direction. The distance between the end of the support portion close to the body and the reinforcement in the first direction is L2, L2≥0mm, and the first direction is perpendicular to the up and down direction.

11. The electric control box according to claim 8, characterized in that: The support portion forms a folded edge bent toward a side away from the box cover assembly.

12. A head assembly, characterized in that: The electric control box comprises the electric control box according to any one of claims 1 to 11.

13. The head assembly according to claim 12, wherein: The head assembly includes an air guide shell, and the first shell is connected to the air guide shell; and / or, The head assembly includes a support rod, and the body is connected to the support rod.

14. A heat pump water heater, characterized in that: A nose assembly comprising any one of claims 12 to 13.

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