Electric control box of outdoor unit and air conditioner

Abstract

The utility model provides an electric control box of an outdoor unit and an air conditioner. The electric control box comprises a box body arranged in a sealed mode and a mounting plate arranged in the box body. The mounting plate is provided with a first mounting side and a second mounting side which are oppositely arranged; the first mounting side is provided with a circuit board; the second installation side is provided with a refrigerant heat dissipation pipe set, and the refrigerant heat dissipation pipe set communicates with a refrigerant circulation system of the outdoor unit. The second installation side is further provided with a heat dissipation assembly matched with the refrigerant heat dissipation pipe set. The technical problem to be solved by the utility model is that the box body of the electric control box is set to be of a sealed structure, but the heat dissipation performance of the electric control box is poorer, so that the service life of the electric control box is influenced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to an outdoor unit's electrical control box and an air conditioner. Background Technology

[0002] Common commercial air conditioner outdoor units have a top-discharge air structure, and traditional electrical control boxes have poor sealing. Specifically, traditional electrical control boxes have a louvered waterproof structure. However, in rainy or humid weather, moisture can easily enter the electrical control box, causing short circuits in the circuit boards and affecting the operation of the entire unit.

[0003] Although solutions have been proposed in related technologies to address the above problems, such as making the electrical control box a sealed structure, the heat dissipation of the electrical control box is poor, which affects the service life of the electrical control box. Utility Model Content

[0004] The technical problem solved by this utility model is that the box body of the electrical control box is set as a sealed structure, but the heat dissipation of the electrical control box is poor, which affects the service life of the electrical control box.

[0005] To address the aforementioned problems, this utility model provides an electrical control box for an outdoor unit. The electrical control box includes a sealed housing and a mounting plate disposed within the housing. The mounting plate has a first mounting side and a second mounting side disposed opposite to each other. A circuit board is disposed on the first mounting side. A refrigerant heat dissipation pipe assembly is disposed on the second mounting side, and the refrigerant heat dissipation pipe assembly is connected to the refrigerant circulation system of the outdoor unit. A heat dissipation component that cooperates with the refrigerant heat dissipation pipe assembly is also disposed on the second mounting side.

[0006] Compared with existing technologies, the technical effects achieved by this solution are as follows: Considering the actual installation of the control box in the outdoor unit, on the one hand, the sealed design of the control box provides excellent waterproofing and dustproofing; on the other hand, by fully utilizing the refrigerant circulation system's temperature regulation effect during air conditioner operation, the refrigerant within the refrigerant heat dissipation pipe assembly also participates in the refrigerant circulation during air conditioner operation, thus effectively ensuring heat exchange between the refrigerant heat dissipation pipe assembly and the environment inside the box, thereby providing excellent heat dissipation for the circuit board; furthermore, the combination of the heat dissipation components and the refrigerant heat dissipation pipe assembly further improves the cooling effect on the electronic components mounted on the circuit board.

[0007] In one embodiment of this invention, the heat dissipation component includes a finned heat sink.

[0008] Compared with existing technologies, the technical effect achieved by adopting this technical solution is as follows: by combining the finned heat sink with the refrigerant heat pipe assembly, the heat dissipation surface area between the refrigerant heat pipe assembly and the internal environment of the casing is increased, thereby improving the heat dissipation efficiency of the refrigerant heat pipe assembly.

[0009] In one embodiment of this utility model, the finned heat sink includes: a connecting seat, which is connected to a second mounting side and has a first mounting position and a second mounting position, the first mounting position being used to install a refrigerant heat dissipation pipe assembly; a fin assembly composed of multiple fins, the fin assembly being installed at the second mounting position; wherein the fin assembly and the refrigerant heat dissipation pipe assembly are arranged adjacent to or nested.

[0010] Compared to existing technologies, the technical effects achieved by this solution are as follows: For example, when the finned assembly and the refrigerant heat pipe assembly are arranged adjacent to each other, it is understood that because refrigerant flows inside the heat pipe assembly, the temperature of the surrounding environment is relatively low. The finned assembly, positioned in this surrounding environment, further expands the heat dissipation surface area of ​​the heat pipe assembly, improving heat dissipation efficiency within the casing. Furthermore, when the finned assembly is nested on the outer surface of the refrigerant heat pipe assembly, the direct contact between the two allows the refrigerant inside the heat pipe assembly to rapidly transfer its low temperature to the finned assembly, thereby cooling the environment around the finned assembly.

[0011] In one embodiment of this utility model, the heat dissipation assembly further includes a first cooling fan, which is arranged adjacent to the refrigerant heat exchange tube assembly, and the first cooling fan forms a first air duct area covering the fin assembly within the housing.

[0012] Compared with existing technologies, the technical effects achieved by this solution are as follows: the airflow of the first cooling fan improves the cooling and diffusion efficiency of the refrigerant heat dissipation pipe assembly within the box, further ensuring that the box maintains a low-temperature environment over the largest possible area, thus avoiding uneven cooling within the box.

[0013] In one embodiment of this utility model, there are multiple fin groups, and two adjacent fin groups are defined as the first fin group and the second fin group, respectively; in the air outlet direction from the first cooling fan to the refrigerant heat pipe group, the multiple fins forming the first fin group and the multiple fins forming the second fin group are staggered or arranged side by side.

[0014] Compared with existing technologies, the technical effects achieved by this solution are as follows: Specifically, when the multiple fins forming the first fin group and the multiple fins forming the second fin group are staggered, for ease of understanding, the air duct formed between two adjacent fins in the first fin group can be defined as the first air duct, and the fins in the second fin group located between the first air ducts can be defined as the second fins. Therefore, during the process of the air delivered by the first cooling fan being guided to the second fins through the first air duct, due to the aforementioned staggered arrangement, the air delivered by the first air duct can simultaneously act on the two opposite sides of the second fins, thereby effectively removing heat from the surface of the second fins and improving the heat dissipation effect between the second fins and their surrounding environment.

[0015] In one embodiment of this utility model, at least one mating gap is formed between the mounting plate and the side wall of the box.

[0016] Compared with the existing technology, the technical effects achieved by adopting this technical solution are as follows: By setting the mating spacing, the airflow interaction between the first mounting side and the second mounting side is effectively realized. Through the air delivery of the first cooling fan, the cooling diffusion range of the refrigerant heat dissipation pipe assembly in the box is increased, that is, it acts on the first mounting side, further ensuring that the low temperature environment is maintained over the largest possible area in the box, and avoiding the problem of uneven cooling in the box.

[0017] In one embodiment of this utility model, the electrical control box further includes a second cooling fan, which is installed on the first mounting side and forms a second air duct area covering the circuit board inside the box.

[0018] Compared with existing technologies, the technical effects achieved by adopting this technical solution are: further improving the airflow circulation efficiency inside the box, thereby enabling the cooling energy of the refrigerant heat dissipation pipe assembly to diffuse over a wider range inside the box.

[0019] In one embodiment of this utility model, a first cooling fan is disposed at a first edge position of the mounting plate near the inner wall of the box; a second cooling fan is disposed at a second edge position of the mounting plate away from the first edge position; wherein the air outlet directions of the first cooling fan and the second cooling fan are opposite.

[0020] In one embodiment of this utility model, multiple support columns are provided between the mounting plate and the circuit board.

[0021] Compared with existing technologies, the technical effects achieved by this solution are as follows: by setting a support column between the mounting plate and the circuit board, the condensation water condensed on the mounting plate during the heat exchange process between the refrigerant heat dissipation pipe assembly and the environment inside the box is effectively prevented from directly acting on the circuit board, thereby reducing the risk of short circuit caused by water contact with the circuit board and improving the safety of the electrical control box.

[0022] On the other hand, this utility model also provides an air conditioner, including: an outdoor unit and an indoor unit, with a refrigerant circulation system connected between the outdoor unit and the indoor unit; an electrical control box as in any of the above examples, the electrical control box being disposed inside the outdoor unit; wherein, the refrigerant heat dissipation pipe assembly has a transfer structure on the side wall of the box body that is connected to the refrigerant circulation system.

[0023] Compared with existing technologies, the technical effects achieved by adopting this technical solution are as follows: it can achieve the technical effects corresponding to any of the above examples, which will not be elaborated here.

[0024] By adopting the technical solution of this utility model, the following technical effects can be achieved:

[0025] (1) Based on the actual installation of the electrical control box in the outdoor unit, on the one hand, the sealing of the electrical control box body achieves a good waterproof and dustproof effect; on the other hand, by making full use of the refrigerant circulation system's effect on refrigerant temperature regulation during the operation of the air conditioner, the refrigerant installed in the refrigerant heat dissipation pipe group also participates in the refrigerant circulation during the operation of the air conditioner, thereby effectively ensuring the heat exchange effect between the refrigerant heat dissipation pipe group and the environment inside the box, thus achieving a good heat dissipation effect on the circuit board; in addition, by combining the heat dissipation components with the refrigerant heat dissipation pipe group, the cooling effect on the electronic components installed on the circuit board is further improved.

[0026] (2) By setting the mating spacing, the airflow interaction between the first installation side and the second installation side is effectively realized. Through the air delivery of the first cooling fan, the cooling diffusion range of the refrigerant heat dissipation pipe assembly in the box is increased, that is, it acts on the first installation side, further ensuring that the low temperature environment is maintained in the box as much as possible, and avoiding the problem of uneven cooling in the box.

[0027] (3) By setting support columns between the mounting plate and the circuit board, the condensation water condensed on the mounting plate during the heat exchange process between the refrigerant heat dissipation pipe assembly and the environment inside the box is effectively prevented from directly acting on the circuit board, thereby reducing the risk of short circuit caused by water contact with the circuit board and improving the safety of the electrical control box. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a structural diagram of the outdoor unit provided in related technologies;

[0030] Figure 2 for Figure 1 A structural diagram of the box structure from another perspective;

[0031] Figure 3 A schematic diagram of the structure of an outdoor unit provided in an embodiment of this utility model;

[0032] Figure 4 for Figure 3 A schematic diagram of the electrical control box from another perspective;

[0033] Figure 5 for Figure 4 A schematic diagram of the internal structure of the electronic control box from another perspective;

[0034] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0035] Figure 7 for Figure 5 Enlarged view of point B in the middle;

[0036] Figure 8 for Figure 4 A schematic diagram of the internal structure of the electronic control box from another perspective;

[0037] Figure 9 for Figure 8 A schematic diagram of a local structure.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Electrical control box; 10. Box body; 11. Mating spacing; 20. Mounting plate; 21. First mounting side; 22. Second mounting side; 30. Circuit board; 40. Refrigerant heat dissipation pipe assembly; 51. Finned heat sink; 511. Connector; 512. First fin assembly; 513. Second fin assembly; 52. First cooling fan; 53. Second cooling fan; 60. Support column;

[0040] 200. Box structure; 210. Waterproof louver structure; 220. Refrigerant pipe; 230. Air outlet. Detailed Implementation

[0041] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0042] See Figure 3 This is a structural schematic diagram of an outdoor unit provided in an embodiment of this utility model. Specifically, in conjunction with... Figures 3-9The outdoor unit provided in this embodiment of the utility model is provided with an electrical control box 100. The electrical control box 100 includes, for example, a sealed box body 10 and a mounting plate 20 disposed inside the box body 10. The mounting plate 20 is provided with a first mounting side 21 and a second mounting side 22 disposed opposite to each other. The first mounting side 21 is provided with a circuit board 30. The second mounting side 22 is provided with a refrigerant heat dissipation pipe assembly 40, which is connected to the refrigerant circulation system of the outdoor unit. The second mounting side 22 is also provided with a heat dissipation component that cooperates with the refrigerant heat dissipation pipe assembly 40.

[0043] Based on the actual installation of the electrical control box 100 in the outdoor unit, on the one hand, the sealed enclosure 10 of the electrical control box 100 achieves a good waterproof and dustproof effect; on the other hand, by fully utilizing the refrigerant circulation system's effect on refrigerant temperature regulation during air conditioner operation, the refrigerant installed in the refrigerant heat dissipation pipe assembly 40 also participates in the refrigerant circulation during air conditioner operation, thereby effectively ensuring the heat exchange effect between the refrigerant heat dissipation pipe assembly 40 and the environment inside the enclosure 10, thus achieving a good heat dissipation effect on the circuit board 30; in addition, the combination of the heat dissipation component and the refrigerant heat dissipation pipe assembly 40 further improves the cooling effect on the electronic components installed on the circuit board 30.

[0044] Further, see Figure 1 and Figure 2 The commercial air conditioner outdoor unit uses a top-mounted air outlet, meaning the air outlet 230 is located at the top. To distinguish it from the electrical control box 100 in this technical solution, the electrical control box in related technical solutions is defined here as the box structure 200. Traditional box structures 200 have poor sealing, specifically, they are equipped with a louvered waterproof structure 210. However, in rainy or humid weather, moisture can easily enter the box structure 200, causing a short circuit in the circuit board 30 and affecting the operation of the entire unit. Furthermore, in existing technical solutions, the refrigerant pipe 220 is located outside the box 10. Compared to this, this technical solution embeds the refrigerant heat dissipation pipe assembly 40 inside the box 10, allowing for sufficient thermal interaction between the refrigerant heat dissipation pipe assembly 40 and the internal environment of the box 10. The external placement of the refrigerant pipe 220 in related technical solutions results in some heat loss to the external environment, reducing its heat dissipation efficiency for the circuit board 30 of the box structure 200.

[0045] Preferably, the heat dissipation component includes a finned heat sink 51. By cooperating with the refrigerant heat pipe assembly 40, the heat dissipation surface area between the refrigerant heat pipe assembly 40 and the internal environment of the casing 10 is increased, thereby improving the heat dissipation efficiency of the refrigerant heat pipe assembly 40.

[0046] Preferably, the finned heat sink 51 includes, for example, a connecting seat 511 and a fin group composed of multiple fins. The connecting seat 511 is connected to the second mounting side 22, and the connecting seat 511 has a first mounting position and a second mounting position. The first mounting position is used to install the refrigerant heat dissipation pipe group 40; the fin group is installed in the second mounting position; wherein the fin group and the refrigerant heat dissipation pipe group 40 are arranged adjacent to or nested.

[0047] For example, when the finned assembly and the refrigerant heat pipe assembly 40 are arranged adjacent to each other, it can be understood that because refrigerant flows inside the refrigerant heat pipe assembly 40, the temperature of the surrounding environment of the refrigerant heat pipe assembly 40 is relatively low. The finned assembly, positioned in this surrounding environment, further increases the heat dissipation surface area of ​​the refrigerant heat pipe assembly 40, improving the heat dissipation efficiency within the housing 10. Furthermore, when the finned assembly is nested on the outer surface of the refrigerant heat pipe assembly 40, the direct contact between the two allows the refrigerant inside the refrigerant heat pipe assembly 40 to quickly transfer its low temperature to the finned assembly, thereby cooling the environment around the finned assembly.

[0048] Preferably, the heat dissipation assembly further includes a first cooling fan 52, which is arranged adjacent to the refrigerant heat exchange pipe assembly and forms a first airflow area covering the fin assembly within the housing 10. Through the airflow action of the first cooling fan 52, the cooling and diffusion efficiency of the refrigerant heat exchange pipe assembly 40 within the housing 10 is improved, further ensuring that a low-temperature environment is maintained over a large area within the housing 10, thus avoiding uneven cooling within the housing 10.

[0049] Preferably, there are multiple fin groups, and two adjacent fin groups are defined as the first fin group 512 and the second fin group 513. From the first cooling fan 52 to the air outlet direction of the refrigerant heat pipe group 40, the multiple fins forming the first fin group 512 and the multiple fins forming the second fin group 513 are staggered or arranged side by side.

[0050] Specifically, when the multiple fins forming the first fin group 512 and the multiple fins forming the second fin group 513 are staggered, for ease of understanding, the air duct formed between two adjacent fins in the first fin group 512 can be defined as the first air duct, and the fins in the second fin group 513 located between the first air ducts can be defined as the second fins. Therefore, as the air delivered by the first cooling fan 52 is guided from the first air duct to the second fins, due to the aforementioned staggered arrangement, the air delivered by the first air duct can simultaneously act on the two opposite sides of the second fins, thereby effectively removing heat from the surface of the second fins and improving the heat dissipation effect between the second fins and their surrounding environment.

[0051] Preferably, at least one mating gap 11 is formed between the mounting plate 20 and the side wall of the housing 10. By setting this mating gap 11, airflow interaction between the first mounting side 21 and the second mounting side 22 is effectively realized. Through the air delivery action of the first cooling fan 52, the cooling diffusion range of the refrigerant heat dissipation pipe assembly 40 in the housing 10 is increased, that is, it acts on the first mounting side 21, further ensuring that the housing 10 maintains a low temperature environment over the largest possible area, and avoiding the problem of uneven cooling in the housing 10.

[0052] Preferably, the electrical control box 100 further includes a second cooling fan 53, which is installed on the first mounting side 21 and forms a second air duct area covering the circuit board 30 within the box body 10.

[0053] Preferably, the first cooling fan 52 is located at the first edge of the inner wall of the mounting plate 20 near the housing 10; the second cooling fan 53 is located at the second edge of the mounting plate 20 away from the first edge; wherein the air outlet directions of the first cooling fan 52 and the second cooling fan 53 are opposite.

[0054] Preferably, multiple support pillars 60 are provided between the mounting plate 20 and the circuit board 30. By providing support pillars 60 between the mounting plate 20 and the circuit board 30, the condensation water condensed on the mounting plate 20 during the heat exchange between the refrigerant heat dissipation pipe assembly 40 and the environment inside the box 10 is effectively prevented from directly acting on the circuit board 30, thereby reducing the risk of short circuit caused by water contact with the circuit board 30 and improving the safety of the electrical control box 100.

[0055] On the other hand, this embodiment of the present invention also provides an air conditioner, including an outdoor unit, an indoor unit, and an electrical control box 100 as described in the above embodiments. A refrigerant circulation system is connected between the outdoor unit and the indoor unit. The electrical control box 100 is disposed inside the outdoor unit. The refrigerant heat dissipation pipe assembly 40 has a transfer structure on the side wall of the box 10 that connects to the refrigerant circulation system. Correspondingly, in this embodiment, the technical effects corresponding to any of the technical solutions in the above embodiments can be achieved, and will not be elaborated further here.

[0056] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An electrical control box for an outdoor unit, characterized in that, The electrical control box includes a sealed box body (10) and a mounting plate (20) disposed inside the box body (10); the mounting plate (20) is provided with a first mounting side (21) and a second mounting side (22) disposed opposite to each other; A circuit board (30) is provided on the first mounting side (21); The second mounting side (22) is provided with a refrigerant heat dissipation pipe assembly (40), which is connected to the refrigerant circulation system of the outdoor unit; the second mounting side (22) is also provided with a heat dissipation component that cooperates with the refrigerant heat dissipation pipe assembly (40); The heat dissipation assembly includes a finned heat sink (51); The finned heat sink (51) includes: A connector (511) is connected to the second mounting side (22), and the connector (511) is provided with a first mounting position and a second mounting position. The first mounting position is used to install the refrigerant heat dissipation pipe assembly (40). A fin assembly consisting of multiple fin elements, the fin assembly being mounted at the second mounting position; The fin group is arranged adjacent to or nested with the refrigerant heat dissipation pipe group (40); The heat dissipation assembly also includes a first cooling fan (52), which is disposed adjacent to the refrigerant heat exchange tube assembly, and the first cooling fan (52) forms a first air duct area covering the fin assembly within the housing (10).

2. The electrical control box according to claim 1, characterized in that, There are multiple fin groups, and two adjacent fin groups are defined as the first fin group (512) and the second fin group (513). From the air outlet direction of the first cooling fan (52) toward the refrigerant heat dissipation pipe assembly (40), the multiple fins that make up the first fin assembly (512) and the multiple fins that make up the second fin assembly (513) are arranged in a staggered or side-by-side arrangement.

3. The electrical control box according to claim 1 or 2, characterized in that, At least one mating gap (11) is formed between the mounting plate (20) and the side wall of the box (10).

4. The electrical control box according to claim 3, characterized in that, The electrical control box also includes a second cooling fan (53), which is installed on the first mounting side (21) and forms a second air duct area covering the circuit board (30) inside the box body (10).

5. The electrical control box according to claim 4, characterized in that, The first cooling fan (52) is located at the first edge of the inner wall of the mounting plate (20) near the box body (10); The second cooling fan (53) is located at a second edge position in the mounting plate (20) away from the first edge position; The first cooling fan (52) and the second cooling fan (53) are arranged in opposite directions.

6. The electrical control box according to any one of claims 1-2, characterized in that, A plurality of support columns (60) are provided between the mounting plate (20) and the circuit board (30).

7. An air conditioner, characterized in that, include: An outdoor unit and an indoor unit, wherein a refrigerant circulation system is connected between the outdoor unit and the indoor unit; The control box as described in any one of claims 1-6, wherein the control box is disposed inside the outdoor unit; The refrigerant heat dissipation pipe assembly (40) has a connecting structure on the side wall of the box body (10) that connects to the refrigerant circulation system.

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