Electric control box for fan coil, fan coil unit and air conditioning system

Abstract

This utility model discloses an electrical control box for a fan coil unit, a fan coil unit, and an air conditioning system. The electrical control box includes a box body and an electrical control board disposed within the box body. The box body includes a back panel, side panels disposed around the back panel, and a cover plate disposed on the side of the side panels away from the back panel. The back panel is provided with an air outlet, and at least one side panel and / or cover plate on the left and right sides of the box body is provided with an air inlet. The back panel is vertically mounted facing the side of the fan coil unit, the air outlet is configured as a return air inlet corresponding to the fan coil unit, and the air inlet is located below the air outlet. The solution provided in this application can effectively cool the electrical control box and prevent the internal electrical control board from overheating.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to an electrical control box for fan coil units, a fan coil unit unit, and an air conditioning system. Background Technology

[0002] Fan coil units are terminal products in air conditioning systems, comprising coils, fans, motors, and other components. The electrical control parts of the fan coil unit are installed in an electrical control box. If the electrical control box does not dissipate heat well, the electrical components inside may malfunction due to high temperatures, affecting the normal operation of the fan coil unit.

[0003] Therefore, a reasonable heat dissipation structure needs to be designed for the electrical control box. Utility Model Content

[0004] This utility model provides an electrical control box for a fan coil unit, a fan coil unit, and an air conditioning system to solve the heat dissipation problem of the electrical control box for the fan coil unit.

[0005] An embodiment of this application provides an electrical control box for a fan coil unit, comprising: a box body and an electrical control board disposed within the box body; The box body includes a back panel, a side panel disposed around the periphery of the back panel, and a cover plate disposed on the side of the side panel away from the back panel. The back panel is provided with an air outlet, and at least one side panel and / or the cover plate on the left and right sides of the box body is provided with an air inlet; wherein, the back panel is configured to be installed vertically facing the side of the fan coil unit, the air outlet is configured to be the return air inlet corresponding to the fan coil unit, and the air inlet is located below the air outlet.

[0006] In one embodiment, the air outlet is located on the back panel above the electronic control board, and the air inlets are respectively located at the bottom of the side panels on the left and right sides of the housing.

[0007] In one embodiment, multiple openings are provided on the side plates and / or the cover plate on the left and right sides of the box body, and the multiple openings serve as air inlets.

[0008] In one embodiment, a dust cover is provided on the outside of the box body to cover the air inlet; the lower end of the dust cover is provided with an opening for airflow to enter.

[0009] In one embodiment, the air inlet is provided with a filter and / or louvers.

[0010] In one embodiment, a heat sink is provided on the electronic control board, and the heat sink is disposed on the airflow path between the air inlet and the air outlet.

[0011] In one embodiment, the electronic control board is provided with a first electronic control board and a second electronic control board. The first electronic control board is mounted close to the back panel, and the second electronic control board is located on the side of the first electronic control board away from the back panel. The heat sink is mounted on the first electronic control board.

[0012] In one embodiment, the heat sink is disposed at the top of the first electronic control board.

[0013] An embodiment of this application also provides a fan coil unit, including a fan coil unit and an electrical control box as described above, wherein the electrical control box is installed on the side of the fan coil unit.

[0014] An air conditioning system, including the fan coil unit as described above.

[0015] In the technical solution of this utility model embodiment, the air outlet is set on the back panel of the box. When the electrical control box is installed in the fan coil unit, the fan of the fan coil unit can draw hot air from the box through the air outlet. Moreover, the air outlet is set above the air inlet, so the airflow entering from the air inlet at the bottom of the box flows upward and can flow through the electrical control board inside the box, effectively cooling the electrical control box and preventing the internal electrical control board from overheating.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 This is a schematic diagram of the electrical control box according to one embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the electrical control box as viewed from another direction; Figure 3 for Figure 1 A top view of the electrical control box in the middle; Figure 4 This is a schematic diagram of the structure of a fan coil unit according to one embodiment of this application; Figure 5 for Figure 4 A schematic diagram of the structure of the fan coil unit from another angle.

[0019] Explanation of reference numerals in the attached figures: 100 - Electrical control box; 1 - First layer electrical control board; 11 - Radiator; 2 - Second layer electrical control board; 3 - Third layer electrical control board; 4 - Box body; 41 - Back panel; 411 - Air outlet; 42 - Side panel; 421 - Air inlet; 5 - Dust cover; 51 - Opening; 200 - Fan coil unit; 201 - Return air outlet. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0021] This application provides an electrical control box 100 for fan coil units, such as... Figures 1-3 As shown, it includes a housing 4 and an electronic control board disposed inside the housing 4.

[0022] The box body 4 includes a back panel 41, side panels 42 disposed around the back panel 41, and a cover plate disposed on the side of the side panel 42 away from the back panel 41. Figures 1-3 The cover plate is not shown.

[0023] The back panel 41 is provided with an air outlet 411, and at least one side panel 42 and / or cover plate on the left and right sides of the box body 4 is provided with an air inlet 421; wherein, the back panel 41 is configured to be vertically installed facing the side of the fan coil unit, the air outlet 411 is configured to be the return air inlet 201 corresponding to the fan coil unit 200, and the air inlet 421 is located below the air outlet 411.

[0024] The "up", "down", "left" and "right" orientations of the electrical control box 100 described in this application are based on the state of the electrical control box 100 when it is installed in the fan coil unit.

[0025] Figure 4 and Figure 5 The image shows the state of the electrical control box 100 installed on the fan coil unit 200. The electrical control box 100 is installed on the side of the fan coil unit 200, wherein the air outlet 411 on the back of the electrical control box 100 corresponds to the return air outlet 201 of the fan coil unit.

[0026] In the technical solution provided in this application, the air outlet 411 is located on the back panel 41 of the box body 4. When the electrical control box 100 is installed on the fan coil unit 200, the fan of the fan coil unit 200 can draw hot air from the box body 4 through the air outlet 411. Moreover, the air outlet 411 is located above the air inlet 421. The airflow entering from the air inlet 421 at the bottom of the box body 4 flows upward and can flow through the electrical control board inside the box body 4, effectively cooling the electrical control box and preventing the internal electrical control board from overheating.

[0027] Furthermore, the solution provided in this application has the air inlet 421 located on the side (left and right sides and / or front side) of the box body 4 instead of the bottom of the box body 4. In the event of a fire in the electrical control box, the flames inside the electrical control box can be prevented from falling from the air inlet 421, thereby preventing a larger fire from breaking out.

[0028] In one embodiment, such as Figures 1-3 As shown, the air outlet 411 is located at the top of the electronic control board on the back panel 41, and air inlets 421 are respectively located at the bottom of the side panels 42 on the left and right sides of the box body. With air inlets 421 on the left and right sides of the box body 4, the airflow entering from both sides can achieve convection, then flow upward, pass through the electronic control board, and exit from the air outlet 411 at the top. Therefore, by setting air inlets 421 on the left and right sides of the box body 4, the incoming cooling airflow can be evenly distributed throughout the entire internal cavity of the box body, achieving more thorough cooling.

[0029] To avoid affecting the aesthetics of the electrical control box, the air inlet 421 can be omitted from the cover plate and instead be installed on the side plates 42 on both sides of the box body 4.

[0030] In one embodiment, multiple openings are provided on the side plates 42 (and / or cover plates) on the left and right sides of the box body 4, which serve as air inlets 421. Figure 1 The diagram shows that multiple openings, serving as air inlets 421, are provided on the side panel 42 of the housing 4. Using multiple openings for the air inlet 421, compared to using a single large opening, helps prevent large foreign objects from entering the housing 4.

[0031] exist Figures 1-3 In the example shown, a dust cover 5 can also be provided on the outside of the box 4 to cover the air inlet 421. An opening 51 for airflow can be provided at the lower end of the dust cover 5. This is more effective in preventing dust than setting the opening 51 on the side of the dust cover 5.

[0032] In one embodiment, the air inlet 421 may be provided with a filter to prevent foreign objects from entering the electrical control box 100. In addition, the air inlet 421 may also be provided with louvers.

[0033] In one embodiment, in order to dissipate heat from electrical components (especially high-power electrical components) on the control board, a heat sink 11 can be provided on the control board. The heat sink 11 is located on the airflow path between the air inlet 421 and the air outlet 411, so that the airflow carries away the heat from the heat sink 11 when it flows through it.

[0034] like Figures 1-3In the illustrated embodiment, to achieve compact installation of the control board and reduce the installation area occupied by the control box, the control board can be configured to include a first control board 1 and a second control board 2. The first control board 1 is installed close to the back panel 41, and the second control board 2 is located on the side of the first control board 1 away from the back panel 41. Additionally, a third control board 3 can be installed on the side of the second control board 2 away from the first control board 1. That is, by layering the control boards, the structural compactness of the control box is achieved.

[0035] In this embodiment, the heat sink 11 is located at the top of the first layer of the electronic control board 1. Since the heat sink 11 has a certain thickness, placing the heat sink 11 on the first layer of the electronic control board 1 and the second layer of the electronic control board 2 below the heat sink 11 can make the structure compact and help reduce the overall thickness of the electronic control box 100.

[0036] Since the first layer of the electrical control board 1 is close to the back panel 41, which faces the return air inlet 201 of the fan coil unit 200, and the heat sink 11 is located on the first layer of the electrical control board 1, the first layer of the electrical control board 1 has a better heat dissipation effect than the second layer of the electrical control board 2. Therefore, electrical components with higher power can be installed on the first layer of the electrical control board 1.

[0037] Embodiments of this application also provide a fan coil unit, such as Figure 4 and Figure 5 As shown, it includes a fan coil unit 200 and an electrical control box 100 as described above. The electrical control box 100 is installed on the side of the fan coil unit 200, and the air outlet 411 of the electrical control box 100 corresponds to the air return outlet 201 of the fan coil unit 200.

[0038] Embodiments of this application also provide an air conditioning system, including the fan coil unit as described above.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. An electrical control box for a fan coil unit, characterized in that, include: The housing and the electronic control board disposed within the housing; The box body includes a back panel, a side panel disposed around the periphery of the back panel, and a cover plate disposed on the side of the side panel away from the back panel. The back panel is provided with an air outlet, and at least one side panel and / or the cover plate on the left and right sides of the box body is provided with an air inlet; wherein, the back panel is configured to be installed vertically facing the side of the fan coil unit, the air outlet is configured to be the return air inlet corresponding to the fan coil unit, and the air inlet is located below the air outlet.

2. The electrical control box according to claim 1, characterized in that, The air outlet is located on the back panel above the electronic control board, and the air inlets are respectively located at the bottom of the side panels on the left and right sides of the box.

3. The electrical control box according to claim 1, characterized in that, Multiple openings are provided on the side plates and / or the cover plate on the left and right sides of the box body, and the multiple openings serve as air inlets.

4. The electrical control box according to claim 1, characterized in that, The outer side of the box is provided with a dust cover over the air inlet; the lower end of the dust cover is provided with an opening for airflow to enter.

5. The electrical control box according to claim 1, characterized in that, The air inlet is equipped with a filter and / or louvers.

6. The electrical control box according to any one of claims 1-5, characterized in that, The control board is equipped with a heat sink, which is located on the airflow path between the air inlet and the air outlet.

7. The electrical control box according to claim 6, characterized in that, The electronic control board is provided with a first electronic control board and a second electronic control board. The first electronic control board is installed close to the back panel, and the second electronic control board is located on the side of the first electronic control board away from the back panel. The heat sink is installed on the first electronic control board.

8. The electrical control box according to claim 7, characterized in that, The heat sink is located at the top of the first electronic control board.

9. A fan coil unit, characterized in that, It includes a fan coil unit and an electrical control box according to any one of claims 1-8, wherein the electrical control box is installed on the side of the fan coil unit.

10. An air conditioning system, characterized in that, Including the fan coil unit according to claim 9.

Images