A waterproof electrical box assembly for a heat pump

Abstract

The utility model discloses a waterproof electric appliance box subassembly of heat pump, including electric appliance box main part and waterproof top cover, waterproof top cover includes horizontal board and vertical board, and the outside extension convex part is formed with the outside extension convex part between vertical board and electric appliance box main part and is enclosed and is formed with the accommodation recessed cavity of the opening downward, and the first through -hole that is communicated with the accommodation recessed cavity is seted up on the electric appliance box main part, and the frequency conversion drive module is installed in the electric appliance box main part, and the radiator is connected with the back of frequency conversion drive module, and the radiator passes through the first through -hole and is located in the accommodation recessed cavity. This waterproof electric appliance box subassembly of heat pump has the advantages that simple and compact structure, small space occupation, waterproof effect is good, can effectively prolong the service life of electric element.

Description

Technical Field

[0001] This utility model relates to the field of heat pump technology, specifically to a waterproof electrical box assembly for a heat pump. Background Technology

[0002] A heat pump is a device that uses external energy (such as electricity) to transfer heat from a low-temperature heat source to a high-temperature heat source. It can absorb low-grade heat energy from the air, convert it into usable high-grade heat energy through compression and circulation of a working fluid, and then release it into the space or equipment that needs to be heated. In the existing technology, heat pump outdoor units have side exhaust and top exhaust types. Top exhaust means that the exhaust port is located at the top of the casing, which has the advantages of compact structure and high heat exchange efficiency. However, because the exhaust port is located at the top and the exhaust fan is located below the exhaust port, when the heat pump outdoor unit is placed outdoors, water from the external environment may enter the casing through the exhaust port, causing damage to the internal electrical components. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a waterproof electrical box assembly for a heat pump that has a simple and compact structure, occupies little space, has good waterproof effect, and can effectively extend the service life of electrical components.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A waterproof electrical box assembly for a heat pump includes an electrical box body and a waterproof top cover. The waterproof top cover includes a horizontal plate and a vertical plate. The vertical plate is bent to form an extended protrusion. The extended protrusion and the electrical box body enclose a downward-facing receiving cavity. The electrical box body has a first through hole communicating with the receiving cavity. A frequency converter drive module is installed inside the electrical box body. A heat sink is connected to the back of the frequency converter drive module. The heat sink passes through the first through hole and is located inside the receiving cavity.

[0006] As a further improvement to the above technical solution:

[0007] The electrical box body has a second through hole, and a relay module is installed inside the electrical box body. The back of the relay module passes through the second through hole and is located below the receiving cavity.

[0008] The electrical box also contains an electrical controller module and a main control board module.

[0009] The main body of the electrical box includes a mounting base plate, a lower side plate, a left side plate, and a right side plate. The mounting base plate, the lower side plate, the left side plate, and the right side plate enclose a receiving space. The frequency converter drive module, the relay module, the electronic controller module, and the main control board module are all located within the receiving space.

[0010] The lower side plate has a lower connecting flange, the left side plate has a left connecting flange, the right side plate has a right connecting flange, and the horizontal plate has an upper connecting flange.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] The waterproof electrical box assembly of this utility model for a heat pump includes an electrical box body and a waterproof top cover. The waterproof top cover covers the top of the electrical box body and faces the side of the heat pump housing exhaust port. External water will flow downward along the horizontal plate and the outer surface of the extended protrusion of the waterproof top cover, which can effectively prevent external water from entering the electrical box body. At the same time, the heat sink on the back of the frequency converter drive module passes through the first through hole and is located in the receiving cavity. Since the opening of the receiving cavity faces downward, the air passage is kept open. Therefore, the airflow generated by the heat pump exhaust can blow towards the heat sink, improving the heat dissipation efficiency. It has the advantages of simple and compact structure, small space occupation, and good waterproof effect, which can effectively extend the service life of electrical components. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the waterproof electrical box assembly viewed from the front.

[0014] Figure 2 This is a split diagram showing the front view of the waterproof electrical box assembly.

[0015] Figure 3 This is a structural schematic diagram of the waterproof electrical box assembly viewed from the rear.

[0016] Figure 4 This is a split diagram of the waterproof electrical box assembly viewed from the rear.

[0017] Figure 5 This is a structural schematic diagram of the waterproof electrical box assembly viewed from below.

[0018] Figure 6 This is a breakdown diagram of the waterproof electrical box assembly viewed from below.

[0019] Figure 7 An example diagram illustrating the application of a waterproof electrical box assembly assembled within a heat pump housing.

[0020] Legend:

[0021] 1. Electrical box body; 101. First through hole; 102. Second through hole; 103. Lower connecting flange; 104. Left connecting flange; 105. Right connecting flange; 2. Waterproof top cover; 201. Horizontal plate; 202. Vertical plate; 203. Outer protrusion; 204. Accommodating cavity; 205. Upper connecting flange; 3. Variable frequency drive module; 4. Heat sink; 5. Relay module; 6. Electronic controller module; 7. Main control board module. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1 to 7 As shown, the waterproof electrical box assembly of the heat pump in this embodiment includes an electrical box body 1 and a waterproof top cover 2. The waterproof top cover 2 includes a horizontal plate 201 and a vertical plate 202. An extended protrusion 203 is bent and formed on the vertical plate 202. The extended protrusion 203 and the electrical box body 1 enclose a downward-facing receiving cavity 204. The electrical box body 1 has a first through hole 101 communicating with the receiving cavity 204. A frequency converter drive module 3 is installed inside the electrical box body 1. A radiator 4 is connected to the back of the frequency converter drive module 3. The radiator 4 passes through the first through hole 101 and is located inside the receiving cavity 204. The waterproof electrical box assembly of this heat pump includes an electrical box body 1 and a waterproof top cover 2. The waterproof top cover 2 covers the top of the electrical box body 1 and faces the side of the heat pump housing exhaust port. External water will flow downward along the outer surface of the horizontal plate 201 and the outer protrusion 203 of the waterproof top cover 2, which can effectively prevent external water from entering the electrical box body 1. At the same time, the heat sink 4 on the back of the frequency converter drive module 3 passes through the first through hole 101 and is located in the receiving cavity 204. Since the opening of the receiving cavity 204 faces downward, the air passage is kept open. Therefore, the airflow generated by the heat pump exhaust can blow towards the heat sink 4, improving the heat dissipation efficiency. It has the advantages of simple and compact structure, small space occupation, and good waterproof effect, which can effectively extend the service life of electrical components.

[0024] Preferably, the electrical box body 1 has a second through hole 102, and a relay module 5 is installed inside the electrical box body 1. The back of the relay module 5 passes through the second through hole 102 and is located below the receiving cavity 204. Specifically, in this embodiment, the relay module 5 is a 5P3N relay.

[0025] Preferably, the electrical box body 1 also houses an electrical controller module 6 and a main control board module 7. In other embodiments, users can add other electrical function modules to the electrical box body 1 according to actual application needs, and are not limited to this embodiment.

[0026] Preferably, the electrical box body 1 includes a mounting base plate, a lower side plate, a left side plate, and a right side plate. The mounting base plate, lower side plate, left side plate, and right side plate enclose a receiving space, within which the frequency converter drive module 3, relay module 5, electronic controller module 6, and main control board module 7 are all located. In this embodiment, the electrical box body 1 has a top-opening structure. After the waterproof top cover 2 is installed on the electrical box body 1, the electrical box body 1 and the waterproof top cover 2 form an enclosing structure, providing good waterproofing.

[0027] Preferably, the lower side plate is provided with a lower connecting flange 103, the left side plate is provided with a left connecting flange 104, the right side plate is provided with a right connecting flange 105, and the horizontal plate 201 is provided with an upper connecting flange 205. The fastening screw passes through the connecting flange and is threadedly connected to the heat pump housing, which completes the assembly of the waterproof electrical box assembly onto the heat pump housing. The assembly and disassembly are convenient and quick, which can effectively improve the maintenance and replacement efficiency of operators.

[0028] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A waterproof electrical box assembly for a heat pump, characterized in that, The device includes an electrical box body (1) and a waterproof top cover (2). The waterproof top cover (2) includes a horizontal plate (201) and a vertical plate (202). The vertical plate (202) has an extended protrusion (203) bent into shape. The extended protrusion (203) and the electrical box body (1) enclose a downward-facing receiving cavity (204). The electrical box body (1) has a first through hole (101) communicating with the receiving cavity (204). A frequency converter drive module (3) is installed inside the electrical box body (1). A radiator (4) is connected to the back of the frequency converter drive module (3). The radiator (4) passes through the first through hole (101) and is located inside the receiving cavity (204).

2. The waterproof electrical enclosure assembly for a heat pump of claim 1, wherein, The electrical box body (1) has a second through hole (102) and a relay module (5) is installed inside the electrical box body (1). The back of the relay module (5) passes through the second through hole (102) and is located below the receiving cavity (204).

3. The waterproof electrical enclosure assembly of claim 2, wherein, The electrical box body (1) is also equipped with an electrical controller module (6) and a main control board module (7).

4. The waterproof electrical enclosure assembly of claim 3, wherein, The main body (1) of the electrical box includes a mounting base plate, a lower side plate, a left side plate and a right side plate. The mounting base plate, the lower side plate, the left side plate and the right side plate form an accommodating space. The frequency conversion drive module (3), the relay module (5), the electronic controller module (6) and the main control board module (7) are all located in the accommodating space.

5. The waterproof electrical enclosure assembly of claim 4, wherein, The lower side plate is provided with a lower connecting flange (103), the left side plate is provided with a left connecting flange (104), the right side plate is provided with a right connecting flange (105), and the horizontal plate (201) is provided with an upper connecting flange (205).

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