Electric control box heat dissipation structure suitable for outdoor unit

Abstract

The utility model discloses an electric control box heat dissipation structure suitable for an outdoor unit, which comprises the outdoor unit and an electric control box assembly, and is characterized in that the interior of the outdoor unit is divided into a fan chamber and a heat pump chamber by a preset middle partition plate; the electric control box assembly is located at the top of the partition plate and comprises a box body, a driving plate and a main control panel with cooling fins on the back face, the box body comprises a main control bin and a driving bin, and the main control bin and the driving bin are formed by integrally bending a plate and both open towards the heat pump chamber; the bottom surface of the main control bin obliquely extends to the fan chamber and is provided with heat dissipation through holes; the main control board is obliquely installed on the bottom face of the main control bin, and the heat dissipation fins on the back face of the main control board penetrate through the heat dissipation through holes to be arranged in the fan chamber. And the driving plate is horizontally mounted on the top surface of the driving bin.

Description

Technical Field

[0001] This utility model relates to the field of electrical control technology for outdoor equipment such as air conditioners or heat pumps, specifically a heat dissipation structure for an outdoor unit's electrical control box that can effectively improve the heat dissipation efficiency of the electrical control box. Background Technology

[0002] In outdoor equipment such as air conditioners and heat pumps, the electrical control box, as the core component of the control system, integrates a large number of electronic components, such as driver boards and main control boards. These components generate a significant amount of heat during operation. If this heat cannot be dissipated in time, it will directly affect the performance of the electronic components and may even lead to equipment malfunction. Traditional heat dissipation methods often suffer from problems such as inadequate heat dissipation, complex structure, and inconvenient installation. Therefore, designing a reasonable and effective heat dissipation structure for the electrical control box is particularly important. Utility Model Content

[0003] The present invention aims to provide a heat dissipation structure for the electrical control box of an outdoor unit. By optimizing the layout and structural design of the electrical control box components, efficient heat dissipation is achieved, ensuring the stable operation of the electronic components inside the electrical control box.

[0004] To achieve the above objectives, this utility model provides a heat dissipation structure for an outdoor unit's electrical control box, comprising an outdoor unit and an electrical control box assembly. The outdoor unit's interior is divided into a fan chamber and a heat pump chamber by a pre-set partition. The electrical control box assembly is located at the top of the partition and includes a box body, a drive board, and a main control board with heat dissipation fins on its back. The box body includes a main control compartment and a drive compartment, both formed by integrally bending sheet metal and opening towards the heat pump chamber. The bottom surface of the main control compartment extends obliquely into the fan chamber and has heat dissipation holes. The main control board is obliquely mounted on the bottom surface of the main control compartment, and the heat dissipation fins on the back of the main control board penetrate the heat dissipation holes and are placed inside the fan chamber. The drive board is horizontally mounted on the top surface of the drive compartment.

[0005] Furthermore, the upper and lower ends of the box are integrally formed with an upper connecting flange and a lower connecting flange, respectively, wherein the upper connecting flange and the lower connecting flange are respectively connected to the motor bracket and side plate pre-set by the outdoor unit.

[0006] Furthermore, it also includes a wiring assembly located at the drive compartment, wherein the wiring assembly includes a main fixing plate, a terminal fixing plate, at least one first terminal connector and at least one second terminal connector. The main fixing plate is fixedly connected to the top surface of the drive compartment. Both ends of the terminal fixing plate are bent to form terminal connection flanges that connect to the main fixing plate, and the inner surface of the terminal fixing plate and the main fixing plate form a receiving cavity. The first terminal connector is placed in the receiving cavity and fixedly installed on the main fixing plate, and the second terminal connector is fixedly installed on the outer surface of the terminal fixing plate.

[0007] Furthermore, the wiring assembly also includes a protective plate fixedly connected to the inner surface of the terminal fixing plate.

[0008] The advantages of this utility model using the above-mentioned solution are as follows: 1) High-efficiency heat dissipation: The heat dissipation fins on the back of the drive board extend directly into the fan chamber, utilizing the strong airflow within the fan chamber for heat dissipation, significantly improving heat dissipation efficiency and ensuring the stable operation of the electronic components inside the control box. 2) Compact structure: The control box assembly adopts an integrated design, resulting in a compact structure, easy installation, and reduced installation space requirements. 3) Convenient maintenance: The wiring components are rationally designed, facilitating external wiring and internal maintenance, thus improving the overall reliability and ease of use of the equipment. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the outdoor unit and electrical control box assembly.

[0010] Figure 2 This is a schematic diagram of the electrical control box assembly.

[0011] Figure 3 This is an exploded view of the electrical control box assembly.

[0012] Among them, 1-outdoor unit, 11-middle partition, 12-motor bracket, 13-side plate, 2-electrical control box assembly, 21-box body, 211-main control compartment, 212-drive compartment, 22-drive board, 23-main control board, 24-wiring assembly, 241-main fixing plate, 242-terminal fixing plate, 243-first terminal block, 244-second terminal block, 245-protective plate. Detailed Implementation

[0013] To facilitate understanding of this utility model, a more complete description of it is provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0014] See appendix Figure 1-3As shown in this embodiment, a heat dissipation structure for an electrical control box suitable for an outdoor unit 1 includes an outdoor unit 1 and an electrical control box assembly 2. The outdoor unit 1 is divided into a fan chamber and a heat pump chamber by a pre-set partition 11. The electrical control box assembly 2 is located at the top of the partition and includes a box body 21, a main control board 23, and a drive board 22 with heat dissipation fins on the back. The box body 21 includes a main control compartment 211 and a drive compartment 212, which are formed by integrally bending a sheet metal and both open towards the heat pump chamber. The bottom surface of the main control compartment 211 extends obliquely into the fan chamber and has heat dissipation holes. The drive board 22 is obliquely installed on the bottom surface of the main control compartment 211, and the heat dissipation fins on the back of the drive board 22 pass through the heat dissipation holes and are placed in the fan chamber. The main control board 23 is horizontally installed on the top surface of the drive compartment 212.

[0015] In this embodiment, the upper and lower ends of the box body 21 are integrally formed with an upper connecting flange and a lower connecting flange, wherein the upper connecting flange and the lower connecting flange are respectively connected to the motor bracket 12 and the side plate 13 preset by the outdoor unit 1.

[0016] In this embodiment, a wiring assembly 24 is also provided at the drive compartment 212. The wiring assembly 24 includes a main fixing plate 241, a terminal fixing plate 242, at least one first terminal connector 243, and at least one second terminal connector 244. The main fixing plate 241 is fixedly connected to the top surface of the drive compartment 212. Both ends of the terminal fixing plate 242 are bent to form terminal connection flanges that connect to the main fixing plate 241. The inner surface of the terminal fixing plate 242 and the main fixing plate 241 form a receiving cavity. The first terminal connector is placed in the receiving cavity and fixedly installed on the main fixing plate 241. The second terminal connector 244 is fixedly installed on the outer surface of the terminal fixing plate 242.

[0017] Specifically, the location and structure of the electrical control box assembly 2: The electrical control box assembly 2 is located at the top of the partition and includes a box body 21, a main control board 23, and a drive board 22. The box body 21 is formed by integrally bending a sheet metal and includes a main control compartment 211 and a drive compartment 212, both of which open towards the heat pump chamber. The bottom surface of the main control compartment 211 extends slopingly into the fan chamber and has heat dissipation vents; the drive compartment 212 is located on one side of the main control compartment 211 and is horizontally positioned at the top.

[0018] Driver board 22 heat dissipation design: The driver board 22 has heat dissipation fins on the back and is installed at an angle on the bottom surface of the main control compartment 211, ensuring that the heat dissipation fins can completely penetrate the heat dissipation holes and extend into the fan chamber. The airflow in the fan chamber can directly blow on the heat dissipation fins, greatly improving heat dissipation efficiency.

[0019] Main control board 23 installation: The main control board 23 is horizontally installed on the top surface of the drive compartment 212. The layout is reasonable and easy to maintain and replace.

[0020] Connection structure: The upper and lower ends of the box 21 are respectively provided with upper connecting flange and lower connecting flange. These flanges are firmly connected to the motor bracket 12 and side plate 13 of the outdoor unit 1 to achieve stable installation of the electrical control box assembly 2.

[0021] Wiring assembly 24 design: A wiring assembly 24 is provided in the drive compartment 212, including a main fixing plate 241, a terminal fixing plate 242, a first terminal connector 243, and a second terminal connector 244. The main fixing plate 241 is fixed to the top surface of the drive compartment 212. The terminal fixing plate 242 is connected to the main fixing plate 241 through a terminal connecting flange. Together, they form a receiving cavity for placing and fixing the first terminal connector 243. The second terminal connector 244 is fixedly installed on the outer surface of the terminal fixing plate 242 for convenient external wiring operations.

[0022] Furthermore, the wiring assembly 24 also includes a protective plate 245 fixedly connected to the inner surface of the terminal fixing plate 242. Specifically, the electrical control box assembly 2 can complete the integration of wiring terminals and the protection of the circuit by only three sheet metal parts (i.e., the main fixing plate 241, the protective plate 245, and the terminal fixing plate 242), which significantly saves the space occupied by the electrical control sheet metal on the entire plane compared with traditional electrical control assemblies; the main fixing plate 241 is welded to the electrical control box by spot welding to form a solid connection; the protective plate 245 is fixed to the terminal fixing plate 242 by spot welding to provide additional protection for the wiring terminals; the two ends of the terminal fixing plate 242 are assembled to the main fixing plate 241 by screws, thereby realizing a reliable connection between the terminal fixing plate 242 and the electrical control box; the manufacturing process of the electrical control box assembly 2 is simple, involving only spot welding and screw installation processes, which improves production efficiency.

[0023] In summary, the heat dissipation structure of the electrical control box for outdoor unit 1 provided by the present invention achieves a perfect combination of efficient heat dissipation and compact structure through ingenious structural design, providing a strong guarantee for the stable operation of outdoor equipment such as air conditioners and heat pumps.

[0024] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any modifications or alterations made by those skilled in the art to the technical solution of this utility model without departing from its scope are equivalent embodiments of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from its scope should be covered within the protection scope of this utility model.

Claims

1. A heat dissipation structure for an outdoor unit's electrical control box, comprising an outdoor unit (1) and an electrical control box assembly (2), wherein, The outdoor unit (1) is divided into a fan chamber and a heat pump chamber by a pre-set partition (11). The electrical control box assembly (2) is located at the top of the partition and includes a box body (21), a drive board (22), and a main control board (23) with heat dissipation fins on the back. The box body (21) includes a main control compartment (211) and a drive compartment (212) formed by bending a sheet metal in one piece and opening towards the heat pump chamber. The bottom surface of the main control compartment (211) extends obliquely to the fan chamber and has heat dissipation holes. The main control board (23) is installed obliquely on the bottom surface of the main control compartment (211) and the heat dissipation fins on the back of the main control board (23) pass through the heat dissipation holes and are placed in the fan chamber. The drive board (22) is installed horizontally on the top surface of the drive compartment (212).

2. The heat dissipation structure for the electrical control box of an outdoor unit according to claim 1, characterized in that: The upper and lower ends of the box (21) are integrally formed with an upper connecting fold and a lower connecting fold, wherein the upper connecting fold and the lower connecting fold are respectively connected to the motor bracket (12) and the side plate (13) of the outdoor unit (1).

3. The heat dissipation structure for the electrical control box of an outdoor unit according to claim 1, characterized in that: It also includes a wiring assembly (24) located in the drive compartment (212), wherein the wiring assembly (24) includes a main fixing plate (241), a terminal fixing plate (242), at least one first terminal connector (243) and at least one second terminal connector (244). The main fixing plate (241) is fixedly connected to the top surface of the drive compartment (212). Both ends of the terminal fixing plate (242) are bent to form terminal connection folds that connect to the main fixing plate (241), and the inner surface of the terminal fixing plate (242) and the main fixing plate (241) form a receiving cavity. The first terminal connector is placed in the receiving cavity and fixedly installed on the main fixing plate (241), and the second terminal connector (244) is fixedly installed on the outer surface of the terminal fixing plate (242).

4. The heat dissipation structure for the electrical control box of an outdoor unit according to claim 3, characterized in that: The wiring assembly (24) also includes a protective plate (245) fixedly connected to the inner surface of the terminal fixing plate (242).

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