CN112944491A

CN112944491A - Electric box assembly, air conditioner outdoor unit and air conditioner

Info

Publication number: CN112944491A
Application number: CN202110187467.1A
Authority: CN
Inventors: 程文森; 胡保国; 王金榜; 刘昭; 李国成; 蔡城
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-06-11

Abstract

The invention discloses an electric box assembly, an air conditioner outdoor unit and an air conditioner, wherein the electric box assembly comprises: the electric appliance box is provided with a mounting cavity and a through hole communicated with the mounting cavity; the radiator is inserted into the through hole, part of the radiator is arranged in the mounting cavity, the rest part of the radiator is arranged outside the mounting cavity, and the radiator is connected with the inner wall of the mounting cavity to cover the through hole; or the radiator is arranged outside the mounting cavity and connected with the outer surface of the electrical box to cover the through hole; or the radiator is arranged in the mounting cavity and connected with the inner wall of the mounting cavity to cover the through hole; wherein, the junction of radiator and electrical apparatus box is formed with waterproof construction in order to shutoff the clearance of the junction of radiator and electrical apparatus box, prevents that water from getting into and crossing the junction and getting into the installation intracavity along the clearance. This electrical box subassembly, air condensing units and air conditioner can avoid water to wet the mainboard when using, and then avoid causing certain influence to the safety in utilization of mainboard.

Description

Electric box assembly, air conditioner outdoor unit and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an electric box assembly, an air conditioner outdoor unit and an air conditioner.

Background

The air condensing units generally will be equipped with the electrical apparatus box subassembly, and mainboard and electric capacity are generally installed to electrical apparatus box subassembly inside, and the mainboard can produce a large amount of heats in the use, consequently, the air condensing units generally all can dispose corresponding radiator and dispel the heat to the mainboard. The radiator is generally installed on the electrical box assembly, and the radiator is cooled under the action of a fan of the outdoor unit.

Traditional air condensing units is in the use, and the rainwater can float under the effect of fan and beat on the radiator to inside the influence that causes the security of mainboard of entering electric appliance box subassembly.

Disclosure of Invention

Based on this, to traditional air condensing units in the use, the rainwater can float under the effect of fan and beat on the radiator to the problem that the security of entering the inside mainboard of electrical apparatus box subassembly caused the influence, an electrical apparatus box subassembly, air condensing units and air conditioner is proposed, this electrical apparatus box subassembly, air condensing units and air conditioner can avoid water to drench the mainboard when using, and then avoid causing certain influence to the safety in utilization of mainboard.

The specific technical scheme is as follows:

in one aspect, the present application relates to an electrical enclosure assembly comprising: the electric appliance box is provided with an installation cavity and a through hole communicated with the installation cavity; the radiator is inserted into the through hole, part of the radiator is arranged in the mounting cavity, the rest part of the radiator is arranged outside the mounting cavity, and the radiator is connected with the inner wall of the mounting cavity so as to cover the through hole; or the radiator is arranged outside the installation cavity and connected with the outer surface of the electrical box to cover the through hole; or the radiator is arranged in the mounting cavity, and the radiator is connected with the inner wall of the mounting cavity to cover the through hole; the connecting part of the radiator and the electrical box is provided with a waterproof structure so as to seal a gap at the connecting part of the radiator and the electrical box and prevent water from entering the mounting cavity through the gap beyond the connecting part.

The technical solution is further explained below:

in one embodiment, the heat sink is inserted into the through hole, part of the heat sink is arranged in the installation cavity, the rest part of the heat sink is arranged outside the installation cavity, the heat sink is connected with the inner wall of the installation cavity to cover the through hole, and the opening of the through hole in the installation cavity is located in the area surrounded by the waterproof structure. So, even water gets into the installation cavity along the through-hole to in getting into the clearance between the inner wall of installation cavity and the radiator, also can't cross waterproof construction under waterproof construction's the stopping and continue to get into the installation cavity and exert an influence to the mainboard.

In one embodiment, the electrical box is provided with a first waterproof part, and the radiator is provided with a second waterproof part which is in concave-convex fit with the first waterproof part and forms the waterproof structure. So, after first waterproof portion and the unsmooth cooperation of second waterproof portion, when rivers were through this waterproof construction, need overcome the route of zigzag and just can cross this waterproof construction and get into the installation intracavity to this waterproof construction possesses the waterproof performance of preferred.

In one embodiment, the electrical box assembly further comprises a fastener, and when the first waterproof part and the second waterproof part are in concave-convex fit, the heat radiator is connected with the electrical box through the fastener.

In one embodiment, the first waterproof part is a protrusion, and the second waterproof part is a groove which is in concave-convex fit with the protrusion; or the first waterproof part is a groove, and the second waterproof part is a bulge matched with the groove in a concave-convex mode.

In one embodiment, the first waterproof part is a protrusion, the second waterproof part is a groove which is in concave-convex fit with the protrusion, the width of the groove is L1, and the depth of the groove is B1, wherein L1 is larger than or equal to 2mm and smaller than or equal to 4mm, and B1 is larger than or equal to 3mm and smaller than or equal to 5 mm.

In one embodiment, the width of the protrusion is L2, and the height of the protrusion is B2, wherein the width is 0.1mm ≦ L2-L1 ≦ 0.3mm, and the width is 0.1mm ≦ B2-B1 ≦ 0.3 mm.

In one embodiment, the opening of the through hole in the installation cavity is arranged in the area surrounded by the first waterproof part.

In one embodiment, the heat sink is provided with heat dissipation fins, and the heat dissipation fins are partially or completely arranged outside the mounting cavity.

In another aspect, the present application further relates to an outdoor unit of an air conditioner, including the electrical box assembly in any of the above embodiments.

In another aspect, the present application further relates to an air conditioner including the electrical box assembly in any of the above embodiments or an outdoor unit of an air conditioner in any of the above embodiments.

In the electric box assembly, the air conditioner outdoor unit and the air conditioner, the radiator is inserted into the through hole, part of the radiator is arranged in the installation cavity, the rest part of the radiator is arranged outside the installation cavity, the fan operates to generate airflow to perform heat exchange with the part outside the radiator, and the radiator in the installation cavity performs heat radiation on the main board in the installation cavity; or the radiator is arranged outside the installation cavity, the radiator is connected with the outer surface of the electrical box to cover the through hole, partial elements of the mainboard can penetrate through the through hole to be connected with the radiator, and the radiator radiates the heat of the mainboard; or the radiator is arranged in the mounting cavity, the radiator is connected with the inner wall of the mounting cavity to cover the through hole, airflow generated by an external fan can enter along the through hole and exchange heat with the radiator, and the radiator can be arranged on the mainboard in the mounting cavity to cool; furthermore, the junction of radiator and electrical apparatus box is formed with waterproof construction, and the formation of this waterproof construction can shutoff radiator and electrical apparatus box junction's clearance, and then prevents that water from passing through the clearance is crossed the junction gets into the installation intracavity, so can avoid water to drench the mainboard, and then avoid causing certain influence to the safety in utilization of mainboard.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale.

Fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment;

FIG. 2 is a schematic structural diagram of an electrical box assembly according to an embodiment;

FIG. 3 is a schematic structural diagram of an electrical box according to an embodiment;

FIG. 4 is an enlarged view of a portion of A in FIG. 2 according to an embodiment;

FIG. 5 is a schematic structural diagram of a heat sink according to an embodiment;

FIG. 6 is a schematic structural diagram of an electrical box according to an embodiment;

fig. 7 is a schematic structural diagram of a heat sink according to another embodiment.

Description of reference numerals:

10. an air conditioner outdoor unit; 20. an electrical box assembly; 100. an electrical box; 110. a mounting cavity; 120. a through hole; 130. a first waterproof section; 140. a first mounting hole; 200. a heat sink; 210. a second waterproof section; 220. heat dissipation fins; 230. a second mounting hole; 240. an installation body; 300. a waterproof structure; 30. a fan; 40. a main board.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 1, an outdoor unit 10 of an air conditioner in an embodiment generally includes an outdoor unit casing (not shown), a fan 30 and an electrical box assembly 20, wherein a containing cavity (not shown) is formed in the outdoor unit casing, and the fan 30 and the electrical box assembly 20 are both disposed in the containing cavity. The electronics enclosure assembly 20 is adapted to house a motherboard 40 or other electrical components. The main board 40 generates a large amount of heat during the operation process, and therefore, a corresponding heat sink 200 needs to be provided to cool the main board 40 so as to prolong the service life of the main board 40. When the outdoor unit 10 of the air conditioner is in operation, the fan 30 rotates to generate an air flow, the air flow is transmitted to the heat sink 200 to exchange heat with the heat sink 200, and the heat sink 200 cools the main board 40.

Referring to fig. 2, an electrical box assembly 20 in an embodiment includes an electrical box 100, the electrical box 100 is provided with a mounting cavity 110, and a main board 40 is disposed in the mounting cavity 110.

The electrical box assembly 20 further includes a heat sink 200, and the heat sink 200 can be mounted in various ways, for example, referring to fig. 2 to 4, in one embodiment, the electrical box 100 is further provided with a through hole 120 communicating with the mounting cavity 110. The heat sink 200 is inserted into the through hole 120, a part of the heat sink 200 is disposed in the mounting cavity 110, and the rest of the heat sink 200 is disposed outside the mounting cavity 110. The heat sink 200 is connected to the inner wall of the mounting cavity 110 to cover the through-hole 120. The heat sink 200 is provided with heat dissipation fins 220, a part or all of the heat dissipation fins 220 are disposed outside the mounting cavity 110, at this time, the heat sink 200 (or the heat dissipation fins 220) located outside the mounting cavity 110 exchanges heat with the airflow generated by the fan 30, and the heat sink 200 located inside the mounting cavity 110 dissipates heat and cools the main board 40.

Since a certain gap exists between the heat sink 200 and the inner wall of the mounting cavity 110 when the heat sink 200 is connected to the inner wall of the mounting cavity 110, in order to prevent rainwater from entering the mounting cavity 110 through the gap beyond the joint between the heat sink 200 and the inner wall of the mounting cavity 110 and wetting the motherboard 40 in the mounting cavity 110, referring to fig. 2 and 4, a waterproof structure 300 is formed at the joint between the heat sink 200 and the inner wall of the mounting cavity 110, and the gap is blocked by the waterproof structure 300, so that water is prevented from entering the mounting cavity 110 along the gap and beyond the joint.

In other embodiments, different from the previous embodiments, the heat sink 200 may be disposed outside the mounting cavity 110, and the heat sink 200 is connected to the outer surface of the electrical box 100 to cover the through hole 120. Some components in the motherboard 40 may pass through the through hole 120 to be connected to the heat sink 200, and the heat sink 200 dissipates heat from the motherboard 40. Similar to the previous embodiment, when the heat sink 200 is connected to the outer surface of the electrical box 100, a certain gap may exist between the heat sink 200 and the outer surface of the electrical box 100, in order to prevent rainwater from entering the mounting cavity 110 through the gap beyond the joint between the heat sink 200 and the outer surface of the electrical box 100, and wet the main board 40 in the mounting cavity 110, a waterproof structure 300 is formed at the joint between the heat sink 200 and the outer surface of the electrical box 100, and the waterproof structure 300 blocks the gap to prevent water from entering the mounting cavity 110 along the gap and beyond the joint.

In another embodiment, different from the two previous embodiments, the heat sink 200 may also be disposed in the mounting cavity 110, the heat sink 200 is connected to the inner wall of the mounting cavity 110 to cover the through hole 120, and the airflow generated by the external fan 30 may enter along the through hole 120 and perform heat exchange with the heat sink 200, at this time, the heat sink 200 may be disposed on the main board 40 in the mounting cavity 110 to cool down; similarly, when the heat sink 200 is connected to the inner wall of the mounting cavity 110, a certain gap may also exist between the heat sink 200 and the inner wall of the mounting cavity 110, so as to prevent rainwater from entering the mounting cavity 110 through the gap beyond the joint between the heat sink 200 and the inner wall of the mounting cavity 110 and to wet the main board 40 in the mounting cavity 110, a waterproof structure 300 is formed at the joint between the heat sink 200 and the inner wall of the mounting cavity 110, and the gap is blocked by the waterproof structure 300, so that water is prevented from entering the mounting cavity 110 along the gap and beyond the joint.

In the above three embodiments, the waterproof structure 300 may be an annular structure, and the opening of the through hole 120 in the installation cavity 110 or the opening of the through hole 120 on the outer surface of the electrical box 100 is disposed in the area surrounded by the annular structure, at this time, water is difficult to enter the installation cavity 110 through the through hole 120 and the connection between the heat sink 200 and the electrical box 100. It is necessary to mean that the waterproof structure 300 is provided to prevent water from entering the inside of the mounting cavity 110 beyond the junction between the heat sink 200 and the electric box 100 to wet the electric components located in the mounting cavity 110. Although when the heat sink 200 is partially located inside the mounting cavity 110, the heat sink 200 is connected to the inner wall of the mounting cavity 110, rainwater may enter the gap at the connection between the heat sink 200 and the inner wall of the mounting cavity 110, and although the rainwater also enters the mounting cavity 110, the rainwater cannot continue to enter the mounting cavity 110 beyond the connection under the action of the waterproof structure 300, so as to damage the electrical components inside the mounting cavity 110.

It can be understood that: the area enclosed by the waterproof structure 300 should be a space, and the waterproof structure 300 encloses an opening of the through hole 120 in the installation cavity 110 or an opening of the through hole 120 on the outer surface of the electrical box 100.

For example, referring to fig. 2 and fig. 3, in this embodiment, the heat sink 200 is inserted into the through hole 120, a part of the heat sink 200 is disposed in the mounting cavity 110, the rest of the heat sink 200 is disposed outside the mounting cavity 110, the heat sink 200 is connected to the inner wall of the mounting cavity 110 to cover the through hole 120, and an opening of the through hole 120 in the mounting cavity 110 is located in an area surrounded by the waterproof structure 300. Also, the waterproof structure 300 surrounds the opening of the through-hole 120 in the installation cavity 110. At this time, even if water enters the installation cavity 110 along the through hole 120 and enters the gap between the inner wall of the installation cavity 110 and the heat sink 200, the water cannot enter the installation cavity 110 beyond the waterproof structure 300 under the blocking of the waterproof structure 300 to affect the main board 40, so that the reliability of waterproofing can be improved.

Referring to fig. 2 and 4, the waterproof structure 300 is formed by combining a partial structure of the electrical box 100 and a partial structure of the heat sink 200, and a corresponding waterproof member is not required to be additionally disposed between the heat sink 200 and the electrical box 100. Therefore, a certain gap is not generated between the waterproof member and the electrical box 100, or an additional gap is not generated between the waterproof member and the heat sink 200, so that the waterproof reliability is improved to a certain extent.

Referring to fig. 3 to 5, as an alternative implementation of the waterproof structure 300, in one embodiment, the electrical box 100 is provided with a first waterproof portion 130, the heat sink 200 is provided with a second waterproof portion 210, and the second waterproof portion 210 is in concave-convex fit with the first waterproof portion 130 to form the waterproof structure 300. Thus, after the first waterproof portion 130 and the second waterproof portion 210 are engaged with each other, when water flows through the waterproof structure 300, the water needs to overcome the tortuous path to pass through the waterproof structure 300 and enter the installation cavity 110, so that the waterproof structure 300 has better waterproof performance.

Optionally, referring to fig. 5 and fig. 7, in one embodiment, the first waterproof portion 130 is a protrusion, and the second waterproof portion 210 is a groove that is concave-convex matched with the protrusion; or in other embodiments, the first waterproof portion 130 is a groove, and the second waterproof portion 210 is a protrusion that is concave-convex matched with the groove. As such, the waterproof structure 300 is formed by the cooperation of the protrusions and the grooves.

Referring to fig. 2, for the convenience of installation and the reliability of waterproof, the fitting direction of the protrusion and the groove is the height direction (e.g., F direction in the figure) of the electrical box assembly 20.

Referring to FIG. 6, the width of the groove is L1, and the depth of the groove is B1, wherein L1 is 2mm or more and 4mm or less, and B1 is 3mm or more and 5mm or less. Referring to FIG. 7, the width of the protrusion is L2, and the height of the protrusion is B2, wherein L2-L1 are 0.1mm or more and 0.3mm or less, and B2-B1 are 0.1mm or more and 0.3mm or less. Therefore, when the protrusions and the grooves are in concave-convex fit, the protrusions are provided with certain allowance. At this time, in order to reduce a gap between the electrical instrument box 100 and the heat sink 200 and to improve the stability of the assembly between the electrical instrument box 100 and the heat sink 200, the electrical instrument box assembly 20 further includes a fastening member through which the heat sink 200 is connected to the electrical instrument box 100 when the first waterproof portion 130 and the second waterproof portion 210 are concavely and convexly fitted. Thus, when the fastener fixes the heat sink 200 and the electrical box 100, the protrusion is pressed into the groove as much as possible, so that on one hand, the assembling stability between the electrical box 100 and the heat sink 200 is improved, and simultaneously, the gap between the heat sink 200 and the bottom wall of the mounting cavity 110 is made as small as possible.

The fastening member may be a screw, referring to fig. 3 and 5, a first mounting hole 140 is formed in an inner wall of the mounting cavity 110, a second mounting hole 230 is formed in the heat sink 200, and the heat sink 200 and the electrical box 100 are fastened and assembled by the screw matching with the first mounting hole 140 and the second mounting hole 230.

Alternatively, L1 may be: 2mm, 3mm or 4 mm; b1 may be: 3mm, 4mm or 5 mm; l2 may be: 2.1mm, 3.1mm, 3.3mm, 4.1mm or 4.3 mm; b2 may be: 3.1mm, 3.2mm, 4.1mm, 5.1mm or 5.3 mm.

Referring to fig. 3, in this embodiment, the opening of the through hole 120 in the installation cavity 110 is disposed in the area surrounded by the first waterproof portion 130. In this way, even when water enters along the through hole 120, the waterproof structure 300 formed by the cooperation of the first waterproof portion 130 and the second waterproof portion 210 can prevent the water from continuously passing over the waterproof structure 300 to damage the main board 40.

Referring to fig. 3, in the embodiment, the first waterproof portion 130 is a protrusion, and the first waterproof portion 130 is disposed on an inner wall of the installation cavity 110; referring to fig. 5, the second waterproof portion 210 is a groove that is concave-convex matched with the protrusion.

Optionally, the protrusion may be a rib, the rib is an annular structure, and the whole groove is also an annular structure, so that the opening of the through hole 120 in the installation cavity 110 may be surrounded by the waterproof structure 300 formed by the protrusion and the groove in a matching manner, and thus, the waterproof function is realized to the maximum.

Specifically, referring to fig. 5, the heat sink 200 includes an installation body 240 and a heat dissipation fin 220, the heat dissipation fin 220 is fixedly disposed on the installation body 240, the installation body 240 is provided with a second waterproof portion 210, and a connection portion between the heat dissipation fin 220 and the installation body 240 is disposed in an area surrounded by the second waterproof portion 210; when the heat sink 200 is installed, one end of the heat sink 200, which is provided with the heat dissipation fins 220, extends into the through hole 120, and when the first waterproof portion 130 and the second waterproof portion 210 are in concave-convex fit and the electrical box 100 and the heat sink 200 are installed by the fastening member, the installation body 240 is laid on the inner wall of the installation cavity 110 and covers the through hole 120. Wherein, the mounting body 240 and the heat dissipation rib 220 may be integrally formed.

In addition, an embodiment also relates to an air conditioner, which includes the electrical box assembly 20 in any of the above embodiments or includes the outdoor unit 10 of the air conditioner in any of the above embodiments.

The air conditioner comprises the electrical box assembly 20 in any one of the embodiments or comprises the outdoor unit 10 of any one of the embodiments, so in the air conditioner, the heat radiator 200 is inserted into the through hole 120, part of the heat radiator 200 is arranged in the installation cavity 110, the rest of the heat radiator 200 is arranged outside the installation cavity 110, the fan 30 operates to generate air flow to perform heat exchange with the part outside the heat radiator 200, and the heat radiator 200 in the installation cavity 110 radiates the main board 40 arranged in the installation cavity 110; or the heat sink 200 is disposed outside the mounting cavity 110, the heat sink 200 is connected to the outer surface of the electrical box 100 to cover the through hole 120, a part of components of the motherboard 40 can pass through the through hole 120 to be connected to the heat sink 200, and the heat sink 200 dissipates heat from the motherboard 40; or the heat sink 200 is disposed in the mounting cavity 110, the heat sink 200 is connected to the inner wall of the mounting cavity 110 to cover the through hole 120, the airflow generated by the external fan 30 can enter along the through hole 120 and exchange heat with the heat sink 200, and at this time, the heat sink 200 can be disposed on the main board 40 in the mounting cavity 110 to cool; further, the junction of radiator 200 and electrical apparatus box 100 is formed with waterproof construction 300, and the formation of this waterproof construction 300 can block off the clearance of radiator 200 and electrical apparatus box 100 junction, and then prevents that water from getting into and crossing in the junction gets into installation cavity 110 along the clearance, so can avoid water to drench mainboard 40, and then avoids causing certain influence to mainboard 40's safety in utilization.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electrical enclosure assembly, comprising:

the electric appliance box is provided with a mounting cavity and a through hole communicated with the mounting cavity;

the radiator is inserted into the through hole, part of the radiator is arranged in the mounting cavity, the rest part of the radiator is arranged outside the mounting cavity, and the radiator is connected with the inner wall of the mounting cavity so as to cover the through hole; or the radiator is arranged outside the installation cavity and connected with the outer surface of the electrical box to cover the through hole; or the radiator is arranged in the mounting cavity, and the radiator is connected with the inner wall of the mounting cavity to cover the through hole;

the connecting part of the radiator and the electrical box is provided with a waterproof structure so as to seal a gap at the connecting part of the radiator and the electrical box and prevent water from entering the mounting cavity through the gap beyond the connecting part.

2. The electrical box assembly as recited in claim 1, wherein the heat sink is inserted into the through hole, a portion of the heat sink is disposed in the mounting cavity, the other portion of the heat sink is disposed outside the mounting cavity, the heat sink is connected to an inner wall of the mounting cavity to cover the through hole, and an opening of the through hole in the mounting cavity is located in an area surrounded by the waterproof structure.

3. An electrical box assembly as claimed in claim 1, wherein the electrical box is provided with a first waterproof portion and the heat sink is provided with a second waterproof portion that is a male-female fit with the first waterproof portion and forms the waterproof structure.

4. The electrical enclosure assembly of claim 3, further comprising a fastener by which the heat sink is coupled to the electrical enclosure when the first waterproof portion and the second waterproof portion are in a concavo-convex fit.

5. The electrical box assembly as claimed in claim 3, wherein the first waterproof portion is a protrusion, and the second waterproof portion is a groove that is concave-convex fitted with the protrusion; or the first waterproof part is a groove, and the second waterproof part is a bulge matched with the groove in a concave-convex mode.

6. The electrical box assembly as claimed in claim 5, wherein the first waterproof portion is a protrusion, the second waterproof portion is a groove that is engaged with the protrusion, the width of the groove is L1, and the depth of the groove is B1, wherein L1 is 2mm or more and 4mm or less, and B1 is 3mm or more and 5mm or less.

7. An electrical box assembly as claimed in claim 6 wherein the width of the protrusion is L2 and the height of the protrusion is B2, wherein 0.1mm L2-L1 mm 0.3mm, 0.1mm B2-B1 mm 0.3 mm.

8. The electrical enclosure assembly as recited in any one of claims 5 to 7, wherein an opening of the through hole in the mounting cavity is disposed in an area surrounded by the first waterproof portion.

9. An electrical box assembly as in claim 1 wherein the heat sink is provided with heat dissipating fins disposed partially or entirely outside the mounting cavity.

10. An outdoor unit of an air conditioner, comprising the electric box assembly of any one of claims 1 to 9.

11. An air conditioner comprising the electrical box assembly of any one of claims 1 to 9 or comprising the outdoor unit of an air conditioner of claim 10.