Electric control box for outdoor unit of central air conditioner

Abstract

The utility model discloses an electric cabinet for an outdoor unit of a central air conditioner, which belongs to the field of air conditioning equipment and comprises a cabinet body and components arranged in the cabinet body, two layers of mounting plates are arranged in the cabinet body, a plurality of support frames are arranged on the first layer of mounting plate, and the second layer of mounting plate is provided with a plurality of connecting plates. The lower end of the second-layer mounting plate is mounted on the support frame in the middle of the first-layer mounting plate through a hinge, the upper end of the second-layer mounting plate is fixed on the support frame at the top of the first-layer mounting plate through a screw, the main control board, the outdoor linear power panel and the driver switch power panel are arranged on the second-layer mounting plate, and other components are arranged on the first-layer mounting plate. According to the utility model, the two layers of mounting plates are arranged, components which are light in weight and occupy large plane space are arranged on the second layer of mounting plate, the area of the plane space occupied by the electric control box can be reduced, the structure is more compact, and the second layer of mounting plate is connected with the first layer of mounting plate through the hinge, so that the structure is more compact. And the maintenance and replacement of components below the second layer of mounting plate are not influenced.

Description

Technical Field

[0001] The utility model relates to the field of air-conditioning equipment, in particular to an electric control box for an outdoor unit of a central air-conditioning unit. Background Art

[0002] As people's requirements for quality of life increase, air conditioners have become important household appliances in people's daily lives. The outdoor unit of an air conditioner mainly includes a compressor, a condenser, a fan, and a controller. For central air conditioners, since multiple indoor units are connected to the outdoor unit, the multi-unit electronic control is relatively complex, with many components. There is no corresponding supporting and fixing device in the outdoor unit housing, which leads to the flying of wire harnesses inside the outdoor unit of the central air conditioner, which has a certain impact on the fan heating and maintenance of the outdoor unit. In addition, as the current market competition for units becomes more and more fierce, the appearance of the units is becoming more and more extreme, resulting in extremely limited space for the control box. Therefore, it is necessary to study a new layout of the electric control box in order to improve space utilization and reduce the overall size of the outdoor unit. Utility Model Content

[0003] In order to overcome the shortcomings of low space utilization of the electric control box of the existing central air-conditioning outdoor unit, the technical problem to be solved by the utility model is to provide a compact electric control box for the central air-conditioning outdoor unit.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An electric control box for a central air-conditioning outdoor unit comprises a box body and components arranged in the box body, wherein a first-layer mounting plate is arranged at the bottom of the box body, a second-layer mounting plate is arranged above the first-layer mounting plate, a plurality of support frames are arranged on both sides of the middle and top of the first-layer mounting plate, the lower end of the second-layer mounting plate is mounted on the support frame in the middle of the first-layer mounting plate by a hinge, and the upper end of the second-layer mounting plate is fixed to the support frame on the top of the first-layer mounting plate by screws, a main control board, an outdoor linear power supply board and a driver switch power supply board among the components are arranged on the outward side of the second-layer mounting plate, and the remaining components are arranged on the first-layer mounting plate.

[0006] Furthermore, a baffle is provided on the support frame in the middle of the first layer of mounting plate, the fixed end of the baffle is fixed on the support frame, the free end of the baffle extends in the direction away from the second layer of mounting plate and is inclined in the direction away from the first layer of mounting plate, and the second layer of mounting plate can be overlapped on the free end of the baffle after being flipped downward.

[0007] Furthermore, the baffle includes two baffles, which are respectively arranged on the left and right sides of the box body to support the left and right sides of the second layer mounting plate.

[0008] Furthermore, the baffle has an inclination angle of 30-75°.

[0009] Furthermore, a downwardly bent reinforcing wall is provided at the free end of the baffle.

[0010] Furthermore, the components located on the first layer of mounting board are divided into strong current and weak current and are installed on the left and right sides of the first layer of mounting board respectively. A plurality of wire supporting brackets are arranged around the periphery of the first layer of mounting board, and a plurality of wire passing brackets are arranged in the middle of the first layer of mounting board.

[0011] Furthermore, the wire supporting bracket is a C-shaped structure with the opening facing upward, one end of which is welded and fixed to the inner wall of the box through a positioning hole, and the other end is provided with a bundling hole; the wire passing bracket is an N-shaped structure, both ends of which are fixed to the first layer mounting plate through fixing holes, and a bundling hole is provided in the middle.

[0012] Furthermore, the surface of the box body close to and facing the second layer mounting plate is an open surface, an openable box door is provided on the open surface, heat dissipation holes are provided on both sides of the box body, and mounting plates that can be connected to the air conditioner outdoor unit casing are provided at the upper and lower ends of the box body.

[0013] The beneficial effect of the utility model is that by arranging two layers of mounting plates in the electric control box, the main control board, outdoor linear power supply board and driver switch power supply board which are lighter in texture and occupy a larger plane space are arranged on the second layer of mounting plates, thereby reducing the area of ​​the plane space occupied by the electric control box and making the structure more compact. At the same time, the second layer of mounting plates is connected to the first layer of mounting plates by hinges, which can also ensure that the maintenance and replacement of components below the second layer of mounting plates are not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the electric control box of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the first layer installation plate of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the baffle of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the wire supporting bracket of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the wire-passing bracket of the utility model.

[0019] Marked in the figure, 1-box, 2-first layer mounting plate, 3-second layer mounting plate, 4-support frame, 5-hinge, 6-baffle, 7-wire support bracket, 8-wire bracket, 9-box door, 11-heat dissipation hole, 12-mounting plate, 31-main control board, 32-outdoor linear power board, 33-driver switch power board, 61-reinforcement wall, 71-positioning hole, 72-bundling hole, 81-fixing hole. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not for the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0022] like Figure 1 , Figure 2 As shown, the utility model of the electric control box for the outdoor unit of the central air conditioner comprises a box body 1 and components arranged in the box body 1, a first-layer mounting plate 2 is provided at the bottom of the box body 1, a second-layer mounting plate 3 is provided above the first-layer mounting plate 2, a plurality of support frames 4 are respectively provided on both sides of the middle and top of the first-layer mounting plate 2, the lower end of the second-layer mounting plate 3 is mounted on the support frame 4 in the middle of the first-layer mounting plate 2 through a hinge 5, and the upper end of the second-layer mounting plate 3 is fixed to the support frame 4 on the top of the first-layer mounting plate 2 through screws, the main control board 31, the outdoor linear power supply board 32 and the driver switch power supply board 33 among the components are arranged on the outward side of the second-layer mounting plate 3, and the remaining components are arranged on the first-layer mounting plate 2.

[0023] Traditional electric control boxes are all single-layer structures, which causes the electric control boxes to occupy a large plane space. The utility model adopts a two-layer mounting plate structure, and the components such as the compressor drive plate, filter plate, fan drive plate and capacitor, which are heavy and occupy a large height space, are arranged on the first-layer mounting plate 2, and the components such as the main control board 31, outdoor linear power supply board 32 and driver switch power supply board 33, which are light and occupy a small height space, are arranged on the second-layer mounting plate 3. In this way, the plane occupied area of ​​the electric control box can be greatly reduced, and the height space is not significantly increased, which can make the structure of the electric control box more compact. At the same time, the second-layer mounting plate 3 is connected to the first-layer mounting plate 2 through the hinge 5. When it is necessary to repair and replace the components under the second-layer mounting plate 3, it is only necessary to remove the screws on the top of the second-layer mounting plate 3, and then flip the second-layer mounting plate 3 downward, which is convenient and quick.

[0024] In order to prevent the second-layer mounting board 3 from being squeezed and collided with the components on the first-layer mounting board 2 after being turned over, a baffle 6 is further provided on the support frame 4 in the middle of the first-layer mounting board 2. Figure 3 As shown, the fixed end of the baffle 6 is fixed on the support frame 4, the free end of the baffle 6 extends in the direction away from the second-layer mounting plate 3, and is inclined in the direction away from the first-layer mounting plate 2, and the second-layer mounting plate 3 can be overlapped on the free end of the baffle 6 after being turned down. The inclined baffle 6 has a certain elasticity, which can play a buffering and supporting role when the second-layer mounting plate 3 is turned over, thereby protecting the components on the first-layer mounting plate 2 and the second-layer mounting plate 3.

[0025] Furthermore, the baffle 6 preferably includes two, which are respectively arranged on the left and right sides of the box body 1, so as to support the left and right sides of the second layer of mounting plate 3 and improve the stability of the support. In addition, according to the space size in the box body 1, the inclination angle of the baffle 6 can be set to 30-75° to ensure that it can play a sufficient buffering role. In order to prevent the baffle 6 from bending at the end after bearing the second layer of mounting plate 3 for many times, a downwardly bent reinforcing wall 61 can be provided at the free end of the baffle 6.

[0026] At present, the arrangement of cables in the electric control box is also relatively random, and the wire harnesses are flying around, which is not conducive to the heat dissipation and subsequent inspection and maintenance of the electric control box. The preferred solution of the utility model is that the components located on the first-layer installation board 2 are respectively installed on the left and right sides of the first-layer installation board 2 according to the strong and weak currents, and the corresponding cables are also separated on the left and right sides according to the strong and weak currents for easy management. In order to facilitate the arrangement of cables, a plurality of wire support brackets 7 are arranged around the first-layer installation board 2, and a plurality of wire passing brackets 8 are arranged in the middle of the first-layer installation board 2.

[0027] The wire support bracket 7 is a C-shaped structure with the opening facing upward. Figure 4As shown, one end is welded and fixed to the inner wall of the box body 1 through a positioning hole 71, and the other end is provided with a bundling hole 72. When arranging the cables, the surrounding cables are first placed on the wire support bracket 7, and then the cables are tied to the wire support bracket 7 with a bundling wire passing through the bundling hole 72. The wire support 8 is an n-shaped structure, such as Figure 5 As shown, its two ends are fixed to the first layer mounting plate 2 through fixing holes 81, and a bundling hole 72 is provided in the middle. For cables located in the middle of the mounting plate, which are difficult to arrange around, they are guided through the wire bracket 8, and at the same time, the cables are fixed to the wire bracket 8 through the bundling wire passing through the bundling hole 72.

[0028] In order to facilitate the installation of components, the surface of the box body 1 close to and facing the second-layer mounting plate 3 can be made an open surface, and an openable box door 9 is provided on the open surface. Heat dissipation holes 11 are provided on both sides of the box body 1. In order to facilitate the installation of the electric control box in the air-conditioning outdoor unit, mounting plates 12 that can be connected to the housing of the air-conditioning outdoor unit are provided at the upper and lower ends of the box body 1.

Claims

1. An electric control box for a central air conditioner outdoor unit, comprising a box body (1) and components arranged in the box body (1), characterized in that: A first-layer mounting plate (2) is provided at the bottom of the box body (1), a second-layer mounting plate (3) is provided above the first-layer mounting plate (2), a plurality of support frames (4) are provided at both sides of the middle and top of the first-layer mounting plate (2), the lower end of the second-layer mounting plate (3) is mounted on the support frame (4) in the middle of the first-layer mounting plate (2) through a hinge (5), and the upper end of the second-layer mounting plate (3) is fixed to the support frame (4) at the top of the first-layer mounting plate (2) through screws; the main control board (31), the outdoor linear power board (32) and the driver switch power board (33) among the components are arranged on the outward side of the second-layer mounting plate (3), and the remaining components are arranged on the first-layer mounting plate (2).

2. The electric control box for the central air conditioner outdoor unit according to claim 1, characterized in that: A baffle (6) is also provided on the support frame (4) in the middle of the first-layer mounting plate (2); the fixed end of the baffle (6) is fixed on the support frame (4); the free end of the baffle (6) extends in a direction away from the second-layer mounting plate (3) and is inclined in a direction away from the first-layer mounting plate (2); the second-layer mounting plate (3) can be overlapped on the free end of the baffle (6) after being turned downward.

3. The electric control box for the central air conditioner outdoor unit according to claim 2, characterized in that: The baffle plates (6) include two baffle plates (6), which are respectively arranged on the left and right sides of the box body (1) to support the left and right sides of the second layer installation plate (3).

4. The electric control box for the central air conditioner outdoor unit according to claim 2, characterized in that: The inclination angle of the baffle (6) is 30-75°.

5. The electric control box for the central air conditioner outdoor unit according to claim 2, characterized in that: The free end of the baffle (6) is provided with a downwardly bent reinforcing wall (61).

6. The electric control box for a central air conditioner outdoor unit according to any one of claims 1 to 5, characterized in that: The components located on the first-layer mounting plate (2) are respectively mounted on the left and right sides of the first-layer mounting plate (2) according to the classification of strong current and weak current; a plurality of wire-supporting brackets (7) are arranged around the periphery of the first-layer mounting plate (2); and a plurality of wire-passing brackets (8) are arranged in the middle of the first-layer mounting plate (2).

7. The electric control box for the central air conditioner outdoor unit according to claim 6, characterized in that: The wire support bracket (7) is a C-shaped structure with an opening facing upward, one end of which is fixed to the inner wall of the box body (1) by welding through a positioning hole (71), and the other end is provided with a bundling hole (72); the wire passing bracket (8) is an N-shaped structure, both ends of which are fixed to the first layer mounting plate (2) through fixing holes (81), and the middle part is provided with a bundling hole (72).

8. The electric control box for a central air conditioner outdoor unit according to claim 1, characterized in that: The surface of the box body (1) close to and facing the second-layer mounting plate (3) is an open surface, and an openable box door (9) is provided on the open surface. Heat dissipation holes (11) are provided on both sides of the box body (1), and mounting plates (12) that can be connected to the housing of the air conditioner outdoor unit are provided at the upper and lower ends of the box body (1).

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