Electrical box assembly and air conditioner with same

Abstract

The utility model provides an electric appliance box assembly and an air conditioner with the same, and the electric appliance box assembly comprises a box body which is provided with a penetrating channel; the mainboard component is arranged in the box body; the heat dissipation component comprises an installation substrate and heat dissipation fins, the heat dissipation fins are arranged on the first side face of the installation substrate, the mainboard component is arranged on the second side face of the installation substrate, the heat dissipation fins are arranged in the penetrating channels in a penetrating mode, and the installation substrate is connected with the box body; and the sealing part is arranged between the box body and the first side surface, and the sealing part is arranged around the penetrating channel. The air conditioner electric appliance box assembly solves the problem that in the prior art, water easily enters an air conditioner electric appliance box assembly, and consequently an air conditioner has potential safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner electrical box technology, specifically to an electrical box assembly and an air conditioner having the same assembly. Background Technology

[0002] The electrical box is an important component of the outdoor unit of an air conditioner. It is generally used to house components such as the main board, power devices, and heat dissipation components. The production process requires first soldering the main board, then installing and soldering the power devices, and finally fixing the heat dissipation components.

[0003] However, the existing assembly method is relatively complicated. Since the heat dissipation components and the motherboard are fixed last, the motherboard needs to have clearance holes for screw fixing. The screws are located in the middle of the motherboard, which increases the chance of mosquitoes entering the electrical box. In addition, under harsh conditions such as rain, water can easily enter the back of the motherboard, causing safety problems such as short circuits. Utility Model Content

[0004] The main objective of this invention is to provide an electrical box assembly and an air conditioner having the same, in order to solve the problem that water easily enters the interior of the air conditioner electrical box assembly in the prior art, leading to safety hazards in the air conditioner.

[0005] To achieve the above objectives, according to one aspect of the present invention, an electrical box assembly is provided, comprising: a box body having a through-channel; a main board component disposed within the box body; a heat dissipation component including a mounting substrate and heat dissipation fins, the heat dissipation fins being disposed on a first side of the mounting substrate, the main board component being disposed on a second side of the mounting substrate, the heat dissipation fins passing through the through-channel, the mounting substrate being connected to the box body; and a sealing portion disposed between the box body and the first side, the sealing portion surrounding the through-channel.

[0006] Furthermore, the box body is provided with a connecting plate, which is arranged around the through channel. The sealing part includes a drainage groove, which is disposed on the connecting plate. At least a portion of the first side is in contact with the connecting plate to form a flow space between the drainage groove and the first side.

[0007] Furthermore, the width of the drainage channel is b, which ranges from 3mm to 4mm; the depth of the drainage channel is h, which ranges from 0.5mm to 1mm.

[0008] Furthermore, the connecting plate is also provided with a first mating surface and a second mating surface, and the drainage groove is disposed between the first mating surface and the second mating surface. The first side surface is mated with the first mating surface and the second mating surface respectively. The first mating surface is disposed away from the through-channel relative to the second mating surface. The width of the first mating surface is a, and the width a ranges from 3mm to 5mm. The width of the second mating surface is c, and the width c ranges from 1mm to 4mm.

[0009] Furthermore, the connecting plate is provided with a first connecting part, and the mounting base is provided with a second connecting part. The first connecting member is sequentially inserted into the second connecting part and the first connecting part to connect the mounting base and the connecting plate.

[0010] Furthermore, the electrical box assembly also includes: electrical components disposed on the second side, the electrical components being connected to the mounting substrate via a second connector, and the electrical components being soldered to the main board component.

[0011] Furthermore, the electrical component is provided with a third connecting portion, and the mounting base is provided with a fourth connecting portion. At least a portion of the second connecting member passes through the third and fourth connecting portions to fix the electrical component on the mounting base.

[0012] Furthermore, the third connecting part includes a first connecting hole, and the fourth connecting part includes a second connecting hole opposite to the first connecting hole, with the second connecting member sequentially passing through the first connecting hole and the second connecting hole.

[0013] Furthermore, a third bonding surface is provided on the first side, and a sealing part is provided between the third bonding surface and the box body. The width of the third bonding surface is 5mm to 8mm.

[0014] According to another aspect of the present invention, an air conditioner is provided, including a body and an electrical box assembly, wherein the electrical box assembly is disposed in the body and is the electrical box assembly described above.

[0015] The electrical box assembly, utilizing the technical solution of this utility model, includes a box body, a main board component, a heat dissipation component, and a sealing part. The box body has a through-channel, and the main board component is housed within the box body. The heat dissipation component includes a mounting substrate and heat dissipation fins. The heat dissipation fins are disposed on a first side of the mounting substrate, and the main board component is disposed on a second side of the mounting substrate. The heat dissipation fins pass through the through-channel, and the mounting substrate is connected to the box body. The sealing part is disposed between the box body and the first side, and surrounds the through-channel. The sealing part, especially its layout surrounding the through-channel, effectively prevents external moisture from entering the electrical box. Particularly in high humidity or frequent rain environments, this ensures the safety of the electronic components inside the electrical box assembly, preventing short circuits or functional failures caused by water intrusion. The sealing part not only provides waterproofing but also effectively prevents small organisms such as mosquitoes from entering the electrical box through the through-channel, reducing circuit board failures caused by insect infestations and extending the service life of the electrical box assembly. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A structural schematic diagram of an embodiment of the electrical box assembly according to the present invention is shown;

[0018] Figure 2 A structural breakdown diagram of the electrical box assembly according to the present invention is shown;

[0019] Figure 3 A top view of the box body in the electrical box assembly according to the present invention is shown;

[0020] Figure 4 A cross-sectional view of the housing in the electrical box assembly according to the present invention is shown;

[0021] Figure 5 It shows according to Figure 4 Enlarged view of section A in the middle;

[0022] Figure 6 A structural split diagram of the heat dissipation component and electrical components in the electrical box assembly according to the present invention is shown;

[0023] Figure 7 An assembly diagram of the heat dissipation components and electrical elements in the electrical box assembly according to the present invention is shown;

[0024] Figure 8 A structural split diagram of the main board component and the heat dissipation component in the electrical box assembly according to the present invention is shown;

[0025] Figure 9 An assembly diagram of the main board component and the heat dissipation component in the electrical box assembly according to the present invention is shown;

[0026] Figure 10 An assembly diagram of the main board component in an electrical assembly according to the present invention is shown.

[0027] The above figures include the following reference numerals:

[0028] 1. Box body; 10. Through-pass channel; 2. Main board component; 3. Heat dissipation component; 30. Mounting base plate; 31. Heat dissipation fins; 301. First side; 302. Second side; 4. Sealing part; 11. Connecting plate; 40. Drainage groove; 110. First mating surface; 111. Second mating surface; 112. First connecting part; 32. Second connecting part; 320. Fourth connecting hole; 5. Electrical component; 6. Second connecting piece; 50. Third connecting part; 33. Fourth connecting part; 501. First connecting hole; 330. Second connecting hole; 303. Third mating surface. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Please refer to Figures 1 to 10 This application provides an electrical box assembly, including: a box body 1, on which a through-channel 10 is provided; a main board component 2, disposed inside the box body 1; a heat dissipation component 3, which includes a mounting substrate 30 and heat dissipation fins 31, the heat dissipation fins 31 being disposed on a first side 301 of the mounting substrate 30, the main board component 2 being disposed on a second side 302 of the mounting substrate 30, the heat dissipation fins 31 passing through the through-channel 10, the mounting substrate 30 being connected to the box body 1; and a sealing part 4, disposed between the box body 1 and the first side 301, the sealing part 4 surrounding the through-channel 10.

[0031] The electrical box assembly provided in this application includes a box body 1, a main board component 2, a heat dissipation component 3, and a sealing part 4. The box body 1 has a through-channel 10, and the main board component 2 is disposed inside the box body 1. The heat dissipation component 3 includes a mounting substrate 30 and heat dissipation fins 31. The heat dissipation fins 31 are disposed on a first side 301 of the mounting substrate 30, and the main board component 2 is disposed on a second side 302 of the mounting substrate 30. The heat dissipation fins 31 pass through the through-channel 10, and the mounting substrate 30 is connected to the box body 1. The sealing part 4 is disposed between the box body 1 and the first side 301, and surrounds the through-channel 10. The sealing part 4, especially its layout surrounding the through-channel 10, effectively prevents external moisture from entering the electrical box, particularly in high humidity or frequent rain environments, ensuring the safety of the electronic components inside the electrical box assembly and preventing short circuits or functional failures caused by water intrusion. The sealing part 4 is not only waterproof, but also effectively prevents small creatures such as mosquitoes from entering the electrical box through the penetration channel 10, reducing circuit board failures caused by pests and extending the service life of the electrical box components.

[0032] The innovative design of the heat dissipation component 3, namely the heat dissipation fins 31 directly passing through the through-channel 10 of the box body 1 and directly contacting the outside of the box body, increases the heat dissipation surface area, accelerates the heat exchange process, thereby improving the heat dissipation performance of the electrical box assembly and ensuring the stability of the motherboard component 2 under high load working conditions.

[0033] Specifically, such as Figure 4As shown, a connecting plate 11 is provided on the housing 1, and the connecting plate 11 is arranged around the through channel 10. The sealing part 4 includes a drainage groove 40, which is provided on the connecting plate 11. At least a portion of the first side surface 301 is in contact with the connecting plate 11 to form a flow space between the drainage groove 40 and the first side surface 301. By providing a drainage groove 40 on the connecting plate 11 of the housing 1 and making the first side surface 301 of the heat dissipation component 3 in contact with the connecting plate 11, a flow space is formed. This design can effectively guide accidentally infiltrated water to the edge of the housing 1 instead of flowing into the interior of the electrical box, greatly reducing the risk of water directly contacting the motherboard component 2, thereby enhancing the overall waterproof performance and protecting the internal electronic components from water damage.

[0034] The placement of the drainage groove 40 and its fit with the first side 301 not only forms a physical barrier, but also further enhances the sealing effect by using waterproof sealant, rubber gaskets, and other materials on the contact surface. This dual protection ensures the sealing performance of the electrical box assembly under various environmental conditions, preventing the intrusion of external factors such as dust and pests. The design of the connecting plate 11 surrounding the channel 10 makes the assembly of the heat dissipation component 3 more convenient and simple. Furthermore, when maintenance or replacement of the heat dissipation component is required, it can be quickly disassembled without damaging the sealing structure. This design improves production efficiency and facilitates subsequent inspection and maintenance.

[0035] In this application, the width of the drainage channel 40 is b, ranging from 3mm to 4mm; the depth of the drainage channel 40 is h, ranging from 0.5mm to 1mm. Choosing a width of 3mm to 4mm b and a depth of 0.5mm to 1mm as the design parameters for the drainage channel 40 effectively prevents external moisture from penetrating into the electrical box. The choice of width b ensures that the drainage channel has sufficient space to collect and guide moisture, preventing it from directly contacting or penetrating the contact surface between the mounting substrate 30 and the main board component 2. The design of the depth h ensures that the drainage channel can hold a certain amount of water without overflowing, while also avoiding excessive depth that would increase unnecessary material and manufacturing costs.

[0036] The drainage channel 40 not only provides waterproofing, but its specific width and depth also enhance the structural stability of the entire electrical box assembly. The appropriate width b and depth h provide additional support points, reducing structural deformation caused by external impacts or vibrations, and ensuring the reliability and durability of the electrical box assembly in various operating environments.

[0037] like Figure 5As shown, the connecting plate 11 is also provided with a first mating surface 110 and a second mating surface 111. A drainage groove 40 is disposed between the first mating surface 110 and the second mating surface 111. The first side surface 301 is respectively mated to the first mating surface 110 and the second mating surface 111. The first mating surface 110 is positioned away from the through-channel 10 relative to the second mating surface 111. The width of the first mating surface 110 is 'a', ranging from 3mm to 5mm. The width of the second mating surface 111 is 'c', ranging from 1mm to 4mm. The drainage groove 40, located between the first mating surface 110 and the second mating surface 111, provides a more effective waterproofing effect compared to traditional flat seals. When water or moisture enters from the outside, the drainage groove 40 can effectively block and collect moisture, preventing it from flowing directly into the motherboard component 2 and the interior of the electrical box, protecting critical electronic components from moisture and water damage. The widths of the first mating surface 110 and the second mating surface 111 are set to 3mm-5mm and 3mm-4mm respectively. This design not only ensures close contact between the heat dissipation component 3 and the connecting plate 11 and improves heat dissipation efficiency, but also provides enough space to accommodate the drainage groove 40, while ensuring the structural stability and durability of the entire component.

[0038] like Figure 2 and Figure 3 As shown, the connecting plate 11 is further provided with a first connecting portion 112, and the mounting base 30 is provided with a second connecting portion 32. A first connector is sequentially inserted into the second connecting portion 32 and the first connecting portion 112, connecting the mounting base 30 and the connecting plate 11. The connection between the first connecting portion 112 and the second connecting portion 32 through the first connector not only ensures a firm fixation between the mounting base 30 and the connecting plate 11, but also enhances the structural stability of the entire electrical box assembly, reducing the risk of component loosening or separation under vibration or external force. The design of the first connecting portion 112 and the second connecting portion 32 allows for precise alignment between the mounting base 30 and the connecting plate 11, avoiding performance degradation or malfunction of the electrical box assembly due to improper assembly. Optionally, the second connecting portion 32 is a fourth connecting hole 320, the first connecting portion 112 is a third connecting hole, and the first connector is a connecting bolt. The connecting bolt is inserted into the third connecting hole and the fourth connecting hole 320 to lock the mounting base 30 and the connecting plate 11.

[0039] In this application, as Figures 6 to 9As shown, the electrical box assembly also includes an electrical component 5, disposed on the second side 302. The electrical component 5 is connected to the mounting substrate 30 via a second connector 6, and the electrical component 5 is soldered to the main board component 2. Connecting the electrical component 5 and the mounting substrate 30 via the second connector 6, and then soldering it to the main board component 2, reduces manual labor and improves automation. It eliminates the need for clearance holes on the main board and locking screws for the electrical component 5, thereby reducing the channels for insects to enter the back of the main board.

[0040] Specifically, the electrical component 5 is provided with a third connecting portion 50, and the mounting base plate 30 is provided with a fourth connecting portion 33. At least a portion of the second connecting member 6 passes through the third connecting portion 50 and the fourth connecting portion 33 to fix the electrical component 5 to the mounting base plate 30. The second connecting member 6 passing through the third connecting portion 50 of the electrical component 5 and the fourth connecting portion 33 of the mounting base plate 30 forms a direct mechanical connection, ensuring that the electrical component 5 can be firmly fixed to the mounting base plate 30, and that the electrical component is not easily loosened or detached even under vibration or impact. This assembly process can be achieved by automated tools such as robotic arms, without the need for manual operation.

[0041] Specifically, the third connecting part 50 includes a first connecting hole 501, and the fourth connecting part 33 includes a second connecting hole 330 opposite to the first connecting hole 501. The second connecting member 6 is sequentially inserted into the first connecting hole 501 and the second connecting hole 330. The precise alignment of the first connecting hole 501 and the second connecting hole 330 ensures the precise fixed position of the electrical component 5 on the mounting substrate 30, improving the assembly accuracy. Simultaneously, the insertion of the second connecting member 6 achieves a stable connection between the electrical component and the substrate, enhancing the structural stability. The hole positions facilitate precise operation on automated production lines, allowing the use of automated assembly equipment such as robots for the installation and fixing of electrical components, further improving the automation level of the production process and reducing human error. Preferably, the second connecting member 6 is a connecting screw. The electrical component 5 is secured to the mounting substrate 30 using the connecting screw, eliminating the need for a connecting hole structure on the main board component 2 for connection with the electrical component 5. The pins of the electrical component 5 can be directly soldered onto the main board component 2. After assembling the main board component 2, the electrical component 5, and the heat dissipation component 3 into a single unit, it is then assembled into the housing 1. Figure 10 As shown.

[0042] A third mating surface 303 is provided on the first side 301, and a sealing part 4 is disposed between the third mating surface 303 and the box body 1. The width of the third mating surface 303 is 5mm to 8mm. The spacious design of the third mating surface 303 and the sealing part 4 that fits tightly between the box body 1 form an effective waterproof barrier, which can prevent rainwater, moisture or dust from entering the interior of the electrical box.

[0043] This application also provides an air conditioner, including a body and an electrical box assembly, wherein the electrical box assembly is disposed in the body, and the electrical box assembly is the electrical box assembly of the above embodiment.

[0044] In patent CN 113865064 A, a first and second snap-fit ​​part is set to snap the main board and the first capacitor inside the electrical box, replacing the existing method of fixing with screws and other auxiliary parts, thus reducing the number of parts required. In patent CN 114760799 A, for cases where the size of the box and electrical box are fixed but the size of the relatively large electrical components is large, a solution of installing an inclined mounting plate is proposed, and electrical components can be installed on both sides of the mounting plate. In CN 216977112U, in order to reduce the screw-driving process and improve assembly efficiency, an insulator is installed between the main board and the power device, replacing the insulation method of stacking sheet metal parts in a plastic box, thus reducing material costs.

[0045] This application proposes a waterproof and insect-proof structure for the electrical box assembly of an air conditioner outdoor unit. Specifically, the electrical box incorporates a water-retaining groove, and the main board has no clearance holes. By assembling the main board, electrical components, and heat dissipation components as a single unit, the number of production personnel required can also be reduced.

[0046] The electrical box structure and the assembly area of ​​the heat dissipation components are equipped with drainage grooves 40 to improve the water leakage of the electrical box. This can prevent water from entering the back of the motherboard under severe rain conditions and prevent the motherboard from short-circuiting.

[0047] Traditional motherboards have several screw holes on their surface to facilitate screws passing through and securing electrical components and heat sinks. In this application, the electrical components are pre-secured to the heat sinks with screws, eliminating the need for screw holes on the motherboard. This solves the problem of traditional motherboards requiring screw holes to secure electrical components. It also effectively prevents insects from entering the electrical enclosure through the screw holes.

[0048] This application also improves the assembly sequence: the assembly of electrical components and heat sinks is moved to the pre-processing stage, where the electrical components are not yet soldered onto the motherboard, thus providing ample space for automated assembly of the electrical components and heat sinks; then the heat sink assembly is inserted onto the motherboard. Traditional assembly methods for electrical components and heat sinks require manual operation, while this automated assembly effectively reduces manpower.

[0049] This application assembles the motherboard, electrical components, and heat dissipation components as a whole onto the electrical box.

[0050] Preferably, in this application, the electrical components are pre-assembled with the heat dissipation components, and then welded to the motherboard to form a whole after being tightened with screws. This step can be automated. The screws for tightening the electrical components are located under the motherboard, eliminating the need to add clearance holes on the motherboard for tightening the screws, thereby reducing the channels for insects to enter the back of the motherboard.

[0051] Preferably, the electrical box is equipped with a drainage groove 40. The dimensions of the drainage groove are determined by the widths a, b, and c, and the depth h. Specifically, the width a can be 3–5 mm, the width b can be 3–4 mm, the width c can be 1–3 mm, and the depth h can be 0.5–1 mm.

[0052] The heat dissipation component assembly is rotated and assembled with the electrical box as a whole, and then two screws are tightened on the back after completion.

[0053] Preferably, the substrates on both sides of the heat dissipation component have a 5mm to 8mm contact surface. When assembled, the reserved surface of the heat dissipation component substrate and the drainage channel inside the electrical box form a sealed structure. During rain testing, water enters the electrical box from the heat dissipation component and flows into the drainage channel of the electrical box, without passing through the motherboard, thus preventing short circuit damage to the motherboard.

[0054] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0055] The electrical box assembly provided in this application includes a box body 1, a main board component 2, a heat dissipation component 3, and a sealing part 4. The box body 1 has a through-channel 10, and the main board component 2 is disposed inside the box body 1. The heat dissipation component 3 includes a mounting substrate 30 and heat dissipation fins 31. The heat dissipation fins 31 are disposed on a first side 301 of the mounting substrate 30, and the main board component 2 is disposed on a second side 302 of the mounting substrate 30. The heat dissipation fins 31 pass through the through-channel 10, and the mounting substrate 30 is connected to the box body 1. The sealing part 4 is disposed between the box body 1 and the first side 301, and surrounds the through-channel 10. The sealing part 4, especially its layout surrounding the through-channel 10, effectively prevents external moisture from entering the electrical box, particularly in high humidity or frequent rain environments, ensuring the safety of the electronic components inside the electrical box assembly and preventing short circuits or functional failures caused by water intrusion. The sealing part 4 is not only waterproof, but also effectively prevents small creatures such as mosquitoes from entering the electrical box through the penetration channel 10, reducing circuit board failures caused by pests and extending the service life of the electrical box components.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0058] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0059] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0060] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electrical box assembly, characterized in that, include: Box body (1), wherein a through passage (10) is provided on the box body (1); The motherboard component (2) is disposed inside the housing (1); Heat dissipation component (3), the heat dissipation component (3) includes a mounting base plate (30) and heat dissipation fins (31), the heat dissipation fins (31) are disposed on the first side (301) of the mounting base plate (30), the main board component (2) is disposed on the second side (302) of the mounting base plate (30), the heat dissipation fins (31) pass through the through channel (10), and the mounting base plate (30) is connected to the box body (1); A sealing part (4) is disposed between the box body (1) and the first side (301), and the sealing part (4) is disposed around the through-channel (10).

2. The electrical box assembly according to claim 1, characterized in that, A connecting plate (11) is provided on the box body (1), the connecting plate (11) is arranged around the through channel (10), and the sealing part (4) includes: A flow channel (40) is disposed on the connecting plate (11), at least a portion of the first side surface (301) is attached to the connecting plate (11) to form a flow space between the flow channel (40) and the first side surface (301).

3. The electrical box assembly according to claim 2, characterized in that, The width of the drainage groove (40) is b, and the range of b is 3mm to 4mm; The depth of the drainage groove (40) is h, and the range of h is 0.5 mm to 1 mm.

4. The electrical box assembly according to claim 2, characterized in that, The connecting plate (11) is also provided with a first mating surface (110) and a second mating surface (111), the drainage groove (40) is disposed between the first mating surface (110) and the second mating surface (111), and the first side surface (301) is mated to the first mating surface (110) and the second mating surface (111) respectively; The first bonding surface (110) is disposed away from the through-channel (10) relative to the second bonding surface (111). The width of the first bonding surface (110) is a, and the width a ranges from 3mm to 5mm. The width of the second bonding surface (111) is c, and the width c ranges from 1mm to 4mm.

5. The electrical box assembly according to claim 2, characterized in that, The connecting plate (11) is also provided with a first connecting part (112), and the mounting base plate (30) is provided with a second connecting part (32). The first connecting member is sequentially inserted into the second connecting part (32) and the first connecting part (112) to connect the mounting base plate (30) with the connecting plate (11).

6. The electrical box assembly according to claim 1, characterized in that, The electrical box assembly also includes: An electrical component (5) is disposed on the second side (302). The electrical component (5) is connected to the mounting base plate (30) via a second connector (6). The electrical component (5) is soldered to the main board component (2).

7. The electrical box assembly according to claim 6, characterized in that, The electrical component (5) is provided with a third connecting part (50), and the mounting base plate (30) is provided with a fourth connecting part (33). At least a portion of the second connector (6) passes through the third connecting part (50) and the fourth connecting part (33) so that the electrical component (5) is fixed on the mounting base plate (30).

8. The electrical box assembly according to claim 7, characterized in that, The third connecting part (50) includes a first connecting hole (501), and the fourth connecting part (33) includes a second connecting hole (330) opposite to the first connecting hole (501). The second connecting member (6) is sequentially inserted into the first connecting hole (501) and the second connecting hole (330).

9. The electrical box assembly according to claim 1, characterized in that, A third bonding surface (303) is provided on the first side surface (301), and the sealing part (4) is disposed between the third bonding surface (303) and the box body (1). The width of the third bonding surface (303) is 5mm to 8mm.

10. An air conditioner, comprising a body and an electrical box assembly, the electrical box assembly being disposed within the body, characterized in that, The electrical box assembly is the electrical box assembly according to any one of claims 1 to 9.

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