Electric control box and air source heat pump air conditioner

Abstract

The application relates to the technical field of air conditioning equipment, and discloses an electric control box and an air source heat pump air conditioner. The electric control box comprises a box body, a partition plate assembly, an electric control assembly and a reactance assembly, the box body has an accommodating space, the partition plate assembly is arranged in the accommodating space and divides the accommodating space into a first accommodating cavity and a second accommodating cavity which are relatively independent, the electric control assembly is arranged in the first accommodating cavity, the reactance assembly is arranged in the second accommodating cavity, the box body is provided with a first air inlet, a second air inlet and a box air outlet, the first air inlet is communicated with the first accommodating cavity, the second air inlet is communicated with the second accommodating cavity, and the box air outlet is communicated with the first accommodating cavity and the second accommodating cavity. The electric control assembly and the reactance assembly can independently dissipate heat, are integrated in one box body, are convenient to assemble, and are beneficial to the miniaturization design of the air source heat pump air conditioner.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to an electrical control box and an air source heat pump air conditioner. Background Technology

[0002] This section provides only background information related to the present invention and is not necessarily prior art.

[0003] Air source heat pump air conditioners are increasingly favored by consumers due to their good energy-saving performance. Commercial or high-power residential air source heat pump air conditioners have high power and high current consumption, typically requiring a three-phase reactor in addition to conventional electronic control components. Both the three-phase reactor and the conventional electronic control components need timely heat dissipation during use to prevent overheating and damage to the circuit components. In traditional air source heat pump air conditioners, the conventional electronic control components are mostly located on the right side of the fan heat exchanger chamber, while the reactor is placed on the fan impeller side for better heat dissipation. However, the electronic control components and reactor need to be separately assembled onto the air source heat pump air conditioner's support structure, resulting in low installation efficiency. Furthermore, the dispersed nature of the electronic control components and conventional electronic control parts hinders the miniaturization design of air source heat pump air conditioners. Summary of the Invention

[0004] The purpose of this invention is to at least solve the problems of existing electronic control components and reactor parts requiring separate assembly to meet heat dissipation requirements, resulting in low installation efficiency and hindering the miniaturization design of air source heat pump air conditioners. This objective is achieved through the following technical solution: A first aspect of the present invention provides an electrical control box, comprising: The box itself has a storage space; A partition assembly is disposed within the box body and divides the accommodating space into a relatively independent first accommodating cavity and a second accommodating cavity; The electronic control components are disposed within the first accommodating cavity; The reactor assembly is disposed within the second receiving cavity; The box body is provided with a first air inlet, a second air inlet and a box air outlet. The first air inlet is connected to the first receiving cavity, the second air inlet is connected to the second receiving cavity, and the box air outlet is connected to both the first and second receiving cavities. Airflow from the first air inlet flows through the electronic control component and then flows out through the box air outlet. Airflow from the second air inlet flows through the reactor component and then flows out through the box air outlet.

[0005] According to the present invention, the electrical control box integrates both the electrical control component and the reactor component into a single box body. During assembly, the electrical control component and the reactor component are first installed in the box body, and then the entire electrical control box is assembled onto the housing of the air source heat pump air conditioner. This facilitates operation and the components are relatively concentrated, which is beneficial for the miniaturization design of the air source heat pump air conditioner. Simultaneously, the partition assembly divides the accommodating space within the box body into a relatively independent first accommodating cavity and a second accommodating cavity. Thus, the electrical control component and the reactor component are housed within the same box body but in different accommodating cavities. This allows the electrical control component and the reactor component to be cooled separately by airflow from the first and second air inlets. The heat dissipated by the electrical control component and the heat dissipated by the reactor component do not interfere with each other. By integrating the electrical control component and the reactor component, the need for independent cooling of the electrical control component and the reactor component is met, ensuring the heat dissipation effect of the electrical control component and the reactor component.

[0006] In addition, the electrical control box according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the electrical control box further includes a heat dissipation component, which is connected to the box body.

[0007] In some embodiments of the present invention, the heat dissipation assembly includes an air guide shroud and a heat sink, the air guide shroud being fixed to the outer side of the box body, a ventilation channel being formed inside the air guide shroud, and the heat sink being disposed inside the ventilation channel.

[0008] In some embodiments of the present invention, the air outlet of the box is provided corresponding to the first receiving cavity; The partition assembly is provided with a partition air outlet, which is located on the side of the electronic control assembly near the box air outlet. The partition air outlet connects the first receiving cavity and the second receiving cavity, so that the box air outlet is connected to the second receiving cavity through the first receiving cavity and the partition air outlet.

[0009] In some embodiments of the present invention, the partition assembly forms a box with an opening, the reactor assembly is disposed inside the box, the side of the box body having the second air inlet abuts against the opening, and the second air inlet communicates with the box body through the opening; The air outlet of the partition is located on the side of the box body opposite to the opening.

[0010] In some embodiments of the present invention, the box body is a cuboid box, including a bottom plate, a top plate and a side plate connected between the bottom plate and the top plate. The side plate includes a first sub-plate, a second sub-plate, a third sub-plate and a fourth sub-plate arranged sequentially and connected end to end. The first sub-plate and the third sub-plate are arranged opposite each other, and the second sub-plate and the fourth sub-plate are arranged opposite each other. The partition assembly is connected to the first sub-plate and the bottom plate, and the second air inlet is disposed on the first sub-plate; The electronic control components are disposed on the second sub-board, the third sub-board and / or the fourth sub-board, and the first air inlet is disposed on the second sub-board and the fourth sub-board; The air outlet of the box is located on the base plate.

[0011] In some embodiments of the present invention, the electronic control component includes a module board, a filter board, and a main control board; The module board, the filter board, and the main control board are all disposed on the third sub-board, or two of the module board, the filter board, and the main control board are disposed on the third sub-board, and the other is disposed on the second or fourth sub-board.

[0012] In some embodiments of the present invention, the module board and the filter board are arranged side by side on the third sub-board along the extension direction of the third sub-board, and the main control board is stacked with the filter board in a direction perpendicular to the third sub-board.

[0013] In some embodiments of the present invention, the electrical control box further includes a fixing frame connected to the third sub-board, the main control board disposed on the fixing frame, an installation gap provided between the fixing frame and the third sub-board, the filter board disposed in the installation gap and connected to the third sub-board, and the filter board being able to slide relative to the third sub-board in the direction from the bottom plate to the top plate.

[0014] A second aspect of the present invention provides an air source heat pump air conditioner, comprising: The housing has a first partition, a first communication port on the first partition, and an upper chamber and a lower chamber arranged sequentially on both sides of the first partition. The electronic control box according to the first aspect of the present invention is disposed in the upper cavity; A wind-side heat exchange assembly is disposed in the lower chamber and includes an airflow drive component and a wind-side heat exchanger disposed corresponding to the airflow drive component. The air outlet of the box is connected to the lower chamber through the first connecting port, and the airflow driving component can drive the airflow from the air outlet of the box to the lower chamber.

[0015] According to the air source heat pump air conditioner of the present invention, the first partition divides the housing into an upper chamber and a lower chamber, and the electrical control box is installed in the independent upper chamber, which is convenient for installation and operation. The electrical control components and the reactor components are integrated into one box body. During assembly, the electrical control components and the reactor components are first installed in the box body, and then the electrical control box is assembled as a whole onto the housing of the air source heat pump air conditioner. This is convenient for operation, and the components are relatively concentrated, which is conducive to the miniaturization design of the air source heat pump air conditioner. At the same time, the partition assembly divides the accommodating space inside the box body into a relatively independent first accommodating cavity and a second accommodating cavity. In this way, the electrical control components and the reactor components are set in the same box body but located in different accommodating cavities. Thus, the electrical control components and the reactor components can be cooled separately by the airflow from the first air inlet and the second air inlet. The heat dissipated by the electrical control components and the heat dissipated by the reactor components will not affect each other. Based on the integrated setting of the electrical control components and the reactor components, the need for independent cooling of the electrical control components and the reactor components is met, ensuring the heat dissipation effect of the electrical control components and the reactor components. Furthermore, when the air source heat pump air conditioner is turned on, the airflow drive component of the air-side heat exchange component drives the airflow to exchange heat, and at the same time, it can drive the airflow to flow from the first air inlet and the second air inlet into the lower cavity. In this way, the heat dissipation requirements of the electrical control box can be met without the need for additional airflow drive components.

[0016] In addition, the air source heat pump air conditioner according to the present invention may also have the following additional technical features: In some embodiments of the present invention, the first partition is further provided with a second communication port, the air outlet of the heat dissipation component connected to the box body is correspondingly provided and connected to the second communication port, and the airflow driving component can drive the airflow from the air outlet of the heat dissipation component to the lower cavity.

[0017] In some embodiments of the present invention, the housing further has a second partition, which is connected between the first partition and the bottom wall of the housing and divides the lower chamber into a first chamber and a second chamber, wherein the air-side heat exchange assembly is disposed in the first chamber; The air source heat pump air conditioner also includes a water-side heat exchange component and a compressor, which are disposed in the second chamber. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of an air source heat pump air conditioner according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of a first partition according to an embodiment of the present invention is shown; Figure 3 A schematic diagram of the electrical control box according to an embodiment of the present invention is shown. Figure 4 A schematic diagram illustrating the assembly of the first part with the electronic control component and the reactor component according to an embodiment of the present invention is shown. Figure 5 A schematic diagram illustrating the correspondence between the reactor assembly and the second part according to an embodiment of the present invention is shown. Figure 6 A schematic diagram illustrating the assembly of the partition assembly and the reactor assembly according to an embodiment of the present invention is shown.

[0019] The attached figures are labeled as follows: 100. Electrical control box; 101. First part; 102. Second part; 103. Base plate; 104. Top plate; 105. First sub-board; 106. Second sub-board; 107. Third sub-board; 108. Fourth sub-board; 110. Partition assembly; 111. Box body; 112. Opening; 113. Partition air outlet; 114. Cover plate; 120. First receiving cavity; 121. First air inlet; 130. Second receiving cavity; 131. Second air inlet; 140. Heat dissipation assembly; 141. Air guide shroud; 142. Heat dissipation component; 200. Electrical control components; 210. Module board; 220. Filter board; 230. Main control board; 240. Mounting bracket; 300. Reactor assembly; 400, Shell; 401, Bottom wall; 402, Rear side wall; 403, Upper chamber; 404, First chamber; 405, Second chamber; 410, First partition; 411, First connecting port; 412, Second connecting port; 420, Second partition; 500. Air-side heat exchange assembly; 510. Airflow drive component; 520. Air-side heat exchanger; 600. Water-side heat exchanger; 700. Water pump; 800, Compressor; A. Airflow. Detailed Implementation

[0020] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the invention and to fully convey the scope of the invention to those skilled in the art.

[0021] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0022] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0023] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0024] like Figures 1 to 6 As shown, according to an embodiment of the present invention, an electrical control box 100 is proposed, which can be applied to an air source heat pump air conditioner.

[0025] An air-source heat pump air conditioner includes a housing 400, an airflow drive component 510 disposed within the housing 400, an air-side heat exchange assembly 500, an expansion valve, a compressor 800, and a water-side heat exchange assembly. The air-side heat exchange assembly 500 includes an air-side heat exchanger 520, and the water-side heat exchanger 600 includes a refrigerant pipeline and a water flow pipeline. An air-source heat pump air conditioner can provide both cooling and heating.

[0026] When an air source heat pump air conditioner is in heating mode, the refrigerant lines of the compressor 800, the water-side heat exchanger 600, the expansion valve, and the air-side heat exchanger 520 are connected in series through refrigerant pipes, forming a closed loop. The working principle of heating is roughly as follows: the compressor 800 delivers high-temperature, high-pressure gaseous refrigerant to the refrigerant lines of the water-side heat exchanger 600. The refrigerant in the refrigerant lines exchanges heat with the water in the water lines. The refrigerant lines output low-temperature, high-pressure liquid refrigerant (low temperature is relative to high temperature; low temperature can also be considered as conventional medium temperature). The low-temperature, high-pressure liquid refrigerant is converted into low-pressure liquid refrigerant through the expansion valve. After vaporizing and absorbing heat in the air-side heat exchanger 520, the liquid refrigerant enters the compressor 800, completing one heating and heat exchange process.

[0027] In the cooling process of an air source heat pump air conditioner, the refrigerant lines of the compressor 800, air-side heat exchanger 520, expansion valve, and water-side heat exchanger 600 are connected in series through refrigerant pipes to form a closed loop. The working principle of cooling is roughly as follows: the compressor 800 delivers high-temperature, high-pressure gaseous refrigerant to the refrigerant line of the air-side heat exchanger 520. After heat exchange with the air, the refrigerant in the air-side heat exchanger 520 outputs low-temperature, high-pressure liquid refrigerant. The low-temperature, high-pressure liquid refrigerant is converted into low-pressure liquid refrigerant through the expansion valve and flows into the refrigerant line of the water-side heat exchanger 600. In the water-side heat exchanger 600, the liquid refrigerant completes heat exchange with the water in the water pipe, vaporizes and absorbs heat, and then enters the compressor 800, completing one cooling and heat exchange process.

[0028] During heating, the air-side heat exchanger 520 functions as an evaporator; during cooling, it functions as a condenser. Switching between cooling and heating modes can be achieved by connecting a four-way valve to the refrigerant outlet of the compressor 800.

[0029] To ensure efficient heat exchange between the refrigerant and air within the air-side heat exchanger 520, the air-side heat exchange assembly 500 typically includes an airflow drive component 510 corresponding to the air-side heat exchanger 520. The airflow drive component 510 promotes airflow. The airflow drive component 510 can be a component such as an axial flow fan, comprising fan blades and a drive element. The drive element can be in the form of a motor and a transmission component. The drive element is connected to the fan blades to drive them to rotate, thereby generating airflow around the air-side heat exchanger 520. This allows the air-side heat exchanger 520 to contact the flowing air, thus improving the heat exchange effect.

[0030] The water flow pipeline of the water-side heat exchanger 600 can also be connected to a water pump 700, which can drive the circulation of water in the water flow pipeline. The water pump 700 can also be installed inside the housing 400. When the water pump 700 is installed inside the housing 400, the water pump 700 is a water-side heat exchange component.

[0031] In this embodiment, the electrical control box 100 includes a box body, a partition assembly 110, an electrical control assembly 200, and a reactor assembly 300.

[0032] The box body has a receiving space. A partition assembly 110 is disposed within the box body, dividing the receiving space into a relatively independent first receiving cavity 120 and a second receiving cavity 130. An electrical control assembly 200 is disposed within the first receiving cavity 120. An electrical reactor assembly 300 is disposed within the second receiving cavity 130. The box body is provided with a first air inlet 121, a second air inlet 131, and a box air outlet. The first air inlet 121 communicates with the first receiving cavity 120, the second air inlet 131 communicates with the second receiving cavity 130, and the box air outlet communicates with both the first receiving cavity 120 and the second receiving cavity 130. Airflow A from the first air inlet 121 flows through the electrical control assembly 200 and then flows out through the box air outlet. Airflow A from the second air inlet 131 flows through the electrical reactor assembly 300 and then flows out through the box air outlet.

[0033] In existing high-power air source heat pump air conditioners, the electrical control component 200 and the reactor component 300 are usually set separately, which is cumbersome to assemble and occupies a large space. According to the electrical control box 100 of this embodiment, the electrical control component 200 and the reactor component 300 are integrated into a single box body. During assembly, the electrical control component 200 and the reactor component 300 are first installed in the box body, and then the electrical control box 100 is assembled as a whole onto the housing 400 of the air source heat pump air conditioner. This is convenient to operate, and the components are more concentrated, which is conducive to the miniaturization design of air source heat pump air conditioners. Meanwhile, the partition assembly 110 divides the accommodating space inside the box body into a relatively independent first accommodating cavity 120 and a second accommodating cavity 130. In this way, the electronic control assembly 200 and the reactor assembly 300 are arranged in the same box body but in different accommodating cavities. Thus, the electronic control assembly 200 and the reactor assembly 300 can be cooled separately by the airflow A from the first air inlet 121 and the second air inlet 131. The heat dissipated by the electronic control assembly 200 and the heat dissipated by the reactor assembly 300 will not affect each other. Based on the integrated arrangement of the electronic control assembly 200 and the reactor assembly 300, the independent cooling requirements of the electronic control assembly 200 and the reactor assembly 300 are met, ensuring the heat dissipation effect of the electronic control assembly 200 and the reactor assembly 300.

[0034] In this embodiment, the air outlet of the control box 100 can be set to correspond to the air inlet of the airflow drive component 510. In this way, when the air source heat pump air conditioner is turned on, the airflow drive component 510 of the air-side heat exchange component 500 drives the airflow to exchange heat, and at the same time, it can drive the airflow A to flow from the first air inlet 121 and the second air inlet 131 to the corresponding first receiving cavity 120 and the second receiving cavity 130, and then flow out from the air outlet. In this way, the heat dissipation requirements of the control box 100 can be met without the need to set up an additional airflow drive component.

[0035] Furthermore, existing electrical control box 100 components are mostly directly exposed within the cavity, resulting in weak waterproof, dustproof, and fireproof capabilities. In this embodiment, the electrical control box 100 uses a box body to relatively seal the electrical control component 200 and the reactor component 300, thereby improving their waterproof, dustproof, and fireproof capabilities.

[0036] In this embodiment, the box body can be a plastic box to reduce the weight of the box body. The shape of the box body can be any shape, specifically a cuboid, a cylinder, etc.

[0037] In this embodiment, the air outlets on the box body can be respectively provided corresponding to the first receiving cavity 120 and the second receiving cavity 130. That is, the box body is provided with an air outlet corresponding to the first receiving cavity 120, and the box body is provided with an air outlet corresponding to the second receiving cavity 130. The two air outlets can be a single connected air outlet, or they can be two separate, independently provided air outlets. The air outlets can also be provided only for the first receiving cavity 120 or the second receiving cavity 130. At the same time, a partition air outlet 113 is provided on the partition assembly 110 to connect the first receiving cavity 120 and the second receiving cavity 130, so that the first receiving cavity 120 and the second receiving cavity 130 can share the air outlet. It should be noted here that when the partition assembly 110 is provided with the partition air outlet 113, the airflow A flowing out of the partition air outlet 113 should flow directly into the air outlet and should not pass through the electrical control component 200 or the reactor component 300 in the receiving cavity corresponding to the air outlet.

[0038] In one specific implementation of this embodiment, the first receiving cavity 120 is correspondingly arranged with the box air outlet, that is, the box air outlet is directly connected to the first receiving cavity 120. The partition assembly 110 has a partition air outlet 113, which connects the second receiving cavity 130 with the first receiving cavity 120. The partition air outlet 113 is disposed on the side of the electronic control assembly 200 near the box air outlet.

[0039] Airflow A from the second air inlet 131 enters the second receiving cavity 130, flows through the reactor component 300, and then flows out from the partition air outlet 113 to the downstream side of the airflow A flowing through the electronic control component 200, before exiting from the box air outlet. Airflow A from the second receiving cavity 130 does not pass through the electronic control component 200; instead, it directly merges with airflow A from the first air inlet 121 after passing through the electronic control component 200 before exiting from the box air outlet. This still avoids mutual interference between the heat dissipated by the electronic control component 200 and the heat dissipated by the reactor component 300, ensuring independent heat dissipation for both components. Furthermore, the box body only needs one box air outlet, resulting in a relatively simple structure.

[0040] In one feasible embodiment, the partition assembly 110 forms a box 111 with an opening 112 at one end, the reactor assembly 300 is installed inside the box 111, the side of the box body having a second air inlet 131 is connected to the opening end of the box 111 so that the second air inlet 131 communicates with the inside of the box 111; the partition air outlet 113 is disposed on the side of the box 111 opposite to the opening 112.

[0041] Among them, reference Figures 4 to 6 As shown, the box 111 can be a cuboid box, with its length greater than its width and height. One side of the box 111 extending along its length forms an opening 112, which is fitted and connected to the box body and corresponds to the second air inlet 131. A partition air outlet 113 is formed on another side of the box 111 extending along its length, positioned near the box's air outlet. A reactor assembly 300 is disposed on the bottom surface of the box 111, located inside the box 111. The reactor assembly 300 is a three-phase reactor, arranged sequentially along the length of the bottom surface of the box 111. The three-phase reactor functions as an impedance in the circuit.

[0042] It should be noted that the opening 112 of the box body 111 corresponds to the position of the second air inlet 131 on the box body, and can directly draw air from the outside of the box body, ensuring that the heat dissipation of the reactor does not radiate into the first receiving cavity 120.

[0043] The housing 111 may include a main body and a cover 114. The cover 114 can be detachably installed on the main body by means of screws or the like. In this way, the reactor assembly 300 can be repaired or replaced by removing the cover 114.

[0044] In one specific implementation of this embodiment, refer to Figures 2 to 4As shown, the main body of the electrical control box 100 is a cuboid box, including a bottom plate 103, a top plate 104, and side plates connected between the bottom plate 103 and the top plate 104. The side plates include a first sub-plate 105, a second sub-plate 106, a third sub-plate 107, and a fourth sub-plate 108, which are arranged sequentially and connected end to end. The first sub-plate 105 and the third sub-plate 107 are arranged opposite each other, and the second sub-plate 106 and the fourth sub-plate 108 are arranged opposite each other. The partition assembly 110 is connected to the first sub-plate 105 and the bottom plate 103. The second air inlet 131 is provided on the first sub-plate 105. The electrical control assembly 200 is provided on the second sub-plate 106, the third sub-plate 107, and / or the fourth sub-plate 108. The first air inlet 121 is provided on the second sub-plate 106 and the fourth sub-plate 108. The box air outlet is provided on the bottom plate 103.

[0045] Specifically, in actual arrangement, the first sub-plate 105 faces the front of the air source heat pump air conditioner, and the third sub-plate 107 faces the rear of the air source heat pump air conditioner. That is, when the air source heat pump air conditioner is installed on the wall, the first sub-plate 105 is set away from the wall, and the second sub-plate 106 is set close to the wall. Correspondingly, the second sub-plate 106 and the fourth sub-plate 108 are on the left and right sides. The open end of the box 111 of the partition assembly 110 is connected to the first sub-plate 105, and the bottom surface of the box 111 of the partition assembly 110 is connected to the bottom plate 103 of the box body. The fourth sub-plate 108 and the second sub-plate 106 are provided with a first air inlet 121, and the first sub-plate 105 is provided with a second air inlet 131, which facilitates the entry of gas into the first air inlet 121 and the second air inlet 131. The reactor assembly 300 only occupies the position of the first sub-plate 105, which facilitates the installation of the electrical control assembly 200. The air outlet of the box (not shown in the figure, the air outlet of the box is connected to the first connecting port 411, so it can be understood by referring to the position of the first connecting port 411) is located on the base plate 103 and is located on the rear side of the partition assembly 110.

[0046] In this embodiment, the electronic control component 200 includes weak current components for intelligent control of the air source heat pump air conditioner and strong current components for high current conversion of the air source heat pump air conditioner. In this embodiment, the electronic control component 200 includes a filter board 220, a main control board 230, and a module board 210. The main control board 230 is a circuit board used to control the air source heat pump air conditioner; it is a weak current component and has functions such as signal acquisition, signal processing, and overall system control. The filter board 220 can process the input and output strong current signals to prevent external power grid interference with the operation of the air source heat pump air conditioner and also to prevent the electrical signals output from the air source heat pump air conditioner from interfering with the power grid. The module board 210 has variable frequency drive control functions for the compressor 800 and AC / DC power conversion control functions, enabling variable frequency operation of the air source heat pump air conditioner and AC / DC power conversion.

[0047] The filter board 220, main control board 230, and module board 210 of the electronic control assembly 200 are respectively installed on the fourth sub-board 108, the third sub-board 107, and the second sub-board 106. Alternatively, all three can be installed on one of the three sub-boards 108, 107, and 106. Or, two of the filter board 220, main control board 230, and module board 210 can be installed on one of the three sub-boards 108, 107, and 106, and the other of the three sub-boards 220, 230, and 210 can be installed on the other of the three sub-boards 108, 107, and 106.

[0048] In this embodiment, the third sub-board 107 and the first sub-board 105 are the longer sides of the box body. The module board 210, the filter board 220 and the main control board 230 can all be disposed on the third sub-board 107, or two of the module board 210, the filter board 220 and the main control board 230 can be disposed on the third sub-board 107, and the other one can be disposed on the second sub-board 106 or the fourth sub-board 108.

[0049] It should be noted that when any one of the module board 210, filter board 220 and main control board 230 is set on the second sub-board 106 and the fourth sub-board 108, care should be taken to avoid the first air inlet 121. That is, the module board 210, filter board 220 or main control board 230 set on the second sub-board 106 or the fourth sub-board 108 should be located on one side of the first air inlet 121 to avoid interfering with the airflow A of the first air inlet 121.

[0050] In one specific implementation, refer to Figure 4 As shown, the module board 210, filter board 220, and main control board 230 can all be mounted on the third sub-board 107. The filter board 220 and module board 210 are arranged side-by-side along the length of the third sub-board 107 and directly attached to it. The main control board 230 is stacked on top of the filter board 220; specifically, along a direction perpendicular to the third sub-board 107, the main control board 230 is located on the side of the filter board 220 closest to the box body.

[0051] Specifically, the electrical control box 100 also includes a mounting bracket 240, which is fixedly connected to the third sub-board 107. The main control board 230 is mounted on the mounting bracket 240. An installation gap is reserved between the mounting bracket 240 and the third sub-board 107. The filter board 220 is mounted in the installation gap and connected to the third sub-board 107.

[0052] Furthermore, to facilitate the individual disassembly and maintenance of the filter board 220 without being affected by the main control board 230, the filter board 220 can be configured as a pull-out structure, allowing the filter board 220 to slide relative to the third sub-board 107 along the direction from the bottom plate 103 toward the top plate 104. Specifically, the third sub-board 107 can be provided with two sliding grooves along the direction from the bottom plate 103 toward the top plate 104 (i.e., the vertical direction), and the filter board 220 can be slidably disposed within the two sliding grooves. The sliding grooves cooperate with the filter board 220 so that the filter board 220 only has a degree of freedom along the connection direction between the bottom plate 103 and the top plate 104.

[0053] Understandably, the independent placement of module board 210 on the third sub-board 107 facilitates rapid heat dissipation for the module board 210, which generates significant heat. The stacked arrangement of filter board 220 and main control board 230 reduces the overall size of the box, contributing to the miniaturization of the electrical control box 100. Furthermore, the module board 210, main control board 230, and filter board 220 are all located on the third sub-board 107 and can be arranged in parallel. During assembly, operators can complete the assembly of the three boards while keeping the box in one position, eliminating the need to repeatedly flip the box to change its orientation. This results in higher assembly efficiency for the electrical control box 100 and reduces manual labor intensity.

[0054] Optionally, to facilitate the disassembly and maintenance of the electronic control component 200 and the reactor component 300, the electronic control box 100 includes a first part 101 and a second part 102. The first part 101 and the second part 102 are detachably connected and define an accommodating space. The electronic control component 200 and the reactor component 300 are both disposed on the first part 101.

[0055] Among them, reference Figure 3 As shown, in this embodiment, the base plate 103, the third sub-plate 107, and the fourth sub-plate 108 constitute the first part 101, and the top plate 104, the first sub-plate 105, and the second sub-plate 106 constitute the second part 102. In this case, the opening 112 of the box body 111 of the partition assembly 110 only abuts against the first sub-plate 105, and the bottom surface of the box body 111 and the base plate 103 of the box body can be detachably fixedly connected, so as to facilitate the removal of the reactor assembly 300 by removing the box body 111; the electrical control assembly 200 can only be installed on the third sub-plate 107 and / or the fourth sub-plate 108.

[0056] The detachable connection between the first part 101 and the second part 102 can be a snap-fit, a screw connection, or the like.

[0057] Optionally, the electrical control box 100 in this embodiment also includes a heat dissipation component 140, which is connected to the box body.

[0058] The heat dissipation component 140 is used to specifically dissipate heat from the electronic control component 200. It can be housed within the casing; specifically, the heat dissipation component 140 can be located on one side of the casing body, corresponding to the electronic control component 200, or it can be located on the outside of the casing body. When the heat dissipation component 140 is located on the outside of the casing body, the heat dissipated by the electronic control component 200 is transferred to the casing body, and then further transferred to the heat dissipation component 140. The heat dissipation component 140 cools the casing body, ultimately cooling the electronic control component 200.

[0059] The heat dissipation component 140 can be a refrigerant heat sink or a semiconductor heat sink, etc. In one implementation, the heat dissipation component 140 is an air heat sink, including an air guide shroud 141 and a heat sink 142. The air guide shroud 141 is fixed to the outer side of the box body, and a ventilation channel is formed inside the air guide shroud 141. The heat sink 142 is disposed in the ventilation channel.

[0060] The air outlet of the ventilation channel faces the same direction as the air outlet of the box. That is, the air outlet of the air channel can also be set to correspond to the air inlet of the airflow drive component 510. In this way, when the air source heat pump air conditioner is turned on, the airflow drive component 510 of the air-side heat exchange component 500 drives the airflow to exchange heat, and at the same time drives the airflow A to flow along the ventilation channel. This way, there is no need to set up an additional airflow drive component, so that the heat dissipation component 140 can have good heat dissipation capacity.

[0061] The air guide shroud 141 and the heat sink 142 are made of thermally conductive materials, such as steel, to facilitate heat conduction and dissipation. The shape of the air guide shroud 141 can be customized as needed, and can be cylindrical, cuboid, etc. The heat sink 142 can be a thermally conductive fin structure or a plate structure, etc., and can be fixed to the side of the air guide shroud 141 facing the box body.

[0062] Since the heat dissipation of the module board 210 is large, the heat dissipation component 140 in this embodiment can be set corresponding to the module board 210. Specifically, the heat dissipation component 140 and the module board 210 are set on the opposite outer and inner sides of the third sub-board 107.

[0063] This embodiment also provides an air source heat pump air conditioner, whose housing 400 has a first partition 410, on which a first connecting port 411 is provided. An upper chamber 403 and a lower chamber are formed on both sides of the first partition 410, arranged vertically. The electrical control box 100 provided in this embodiment is installed in the upper chamber 403 and connected to the first partition 410. The box air outlet is connected to the lower chamber through the first connecting port 411. The air-side heat exchange assembly 500, the water-side heat exchange assembly, and the compressor 800 are all installed in the lower chamber. The airflow drive component 510 can drive airflow A to flow from the box air outlet into the lower chamber.

[0064] The housing 400 may be provided with a heat dissipation air inlet corresponding to the upper chamber 403. The heat dissipation air inlet may be provided on the rear side wall 402 of the housing 400 corresponding to the upper chamber 403. The heat dissipation air inlet is used for outside air to enter the upper chamber 403 so that the airflow A formed by the air flows to the first air inlet 121, the second air inlet 131 and the heat dissipation channel of the heat dissipation component 140.

[0065] Furthermore, when the control box 100 has a heat dissipation assembly 140, a second communication port 412 corresponding to the heat dissipation assembly 140 is also formed on the first partition 410. The air outlet of the heat dissipation assembly 140 is correspondingly provided and connected to the second communication port 412. The airflow drive member 510 can drive the airflow A to flow from the air outlet of the heat dissipation assembly 140 into the lower cavity.

[0066] Optionally, the housing 400 further includes a second partition 420, the upper end of which is connected to the first partition 410, and the lower end of which is connected to the bottom wall 401 of the housing 400. The second partition 420 divides the lower chamber and forms a second chamber 405 and a first chamber 404. The air-side heat exchange assembly 500 is disposed in the first chamber 404, and the water-side heat exchange assembly and the compressor 800 are disposed in the second chamber 405.

[0067] The second chamber 405 and the first chamber 404 are arranged side by side in a horizontal direction. A third partition is provided on the side of the second partition 420 facing the second chamber 405. The compressor 800 and the water pump 700 are mounted on the third partition. The water-side heat exchanger 600 is located below the third partition and is installed on the bottom wall 401 of the housing 400. The first chamber 404 is provided with a whole unit air inlet and a whole unit air outlet corresponding to the airflow drive component 510 of the air-side heat exchanger 520. Specifically, the whole unit air inlet is located on the front side wall of the housing 400, and the whole unit air outlet is located on the rear side wall 402 of the housing 400.

[0068] The water-side heat exchanger 600 can be a shell-and-tube heat exchanger, and the air-side heat exchanger 520 can be a finned heat exchanger.

[0069] In this embodiment, when the air source heat pump air conditioner is turned on, the airflow A in the control box 100 has three operating paths. In the first path, airflow A enters the upper chamber 403 through the heat dissipation air inlet located on the rear side wall 402 of the upper chamber 403, and then enters the control box 100 through the first air inlet 121 on the second sub-board 106 and the third sub-board 107. After airflow A flows through the control component 200 and the reactor component 300, carrying away heat, it flows into the negative pressure first chamber 404 through the box outlet and the first connecting port 411, ultimately dissipating the heat and providing cooling for the module board 210, the main control board 230, and the filter board 220. In the second path, the heat dissipation component 140 located at the rear of the module board 210 simultaneously dissipates heat for the control box 100, and airflow A flows through the heat dissipation component 140. Air enters through the inlet of the heat dissipation channel of component 140, passes through the surface of heat sink 142, passes through the second connecting port 412, and flows into the negative pressure first chamber 404, thereby dissipating heat for the module; the third path is that airflow A enters the second receiving cavity 130 from the second air inlet 131, passes through the surface of reactor component 300, flows out from the partition air outlet 113, passes through the box air outlet and the first connecting port 411, and flows into the negative pressure first chamber 404, thereby dissipating heat for reactor component 300; the three paths are isolated to avoid mutual heat accumulation, and the newly designed electrical control box 100 can meet the heat exchange requirements of the air source heat pump air conditioner proposed in this embodiment.

[0070] In traditional air-source heat pump air conditioners, the electrical control box 100 is typically located on the right side of the chamber containing the air-side heat exchanger 520, above the compressor 800. For compact, small models, the installation space for the electrical control box 100 is limited, making disassembly and maintenance inconvenient. Furthermore, the reactor component of the three-phase electrical control box 100 needs to be placed on the fan side of the air-side heat exchanger 520, which is problematic due to rain-induced heat generation. In this embodiment, the electrical control box 100 and the air-source heat pump air conditioner, including the electrical control components 200 and reactor components 300, are all protected within the box body, with only the air inlet and outlet exposed. This enhances the waterproof, dustproof, and fireproof capabilities of the electrical control box 100. The electrical control box 100 is located in an independent upper chamber 403, which facilitates the overall installation and disassembly of the electrical control box 100. The electrical control box 100 consists of a first part 101 (support part) and a second part 102 (cover part). During installation or disassembly, only the second part 102 needs to be disassembled, which improves the efficiency of the electrical control box 100.

[0071] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An electrical control box, characterized in that, include: The box itself has a storage space; A partition assembly (110) is disposed within the receiving space and divides the receiving space into a relatively independent first receiving cavity (120) and a second receiving cavity (130). An electronic control assembly (200) is disposed within the first receiving cavity (120); A reactor assembly (300) is disposed within the second receiving cavity (130); The box body is provided with a first air inlet (121), a second air inlet (131) and a box air outlet. The first air inlet (121) is connected to the first receiving cavity (120), the second air inlet (131) is connected to the second receiving cavity (130), and the box air outlet is connected to both the first receiving cavity (120) and the second receiving cavity (130). The airflow (A) from the first air inlet (121) flows through the electronic control component (200) and then flows out through the box air outlet. The airflow (A) from the second air inlet (131) flows through the reactor component (300) and then flows out through the box air outlet. The air outlet of the box is provided corresponding to the first receiving cavity (120). The partition assembly (110) is provided with a partition air outlet (113). The partition air outlet (113) is located on the side of the electronic control assembly (200) close to the air outlet of the box. The partition air outlet (113) connects the first receiving cavity (120) and the second receiving cavity (130) so that the air outlet of the box is connected to the second receiving cavity (130) through the first receiving cavity (120) and the partition air outlet (113). The box body is a cuboid box, including a bottom plate (103), a top plate (104), and side plates connected between the bottom plate (103) and the top plate (104). The side plates include a first sub-plate (105), a second sub-plate (106), a third sub-plate (107), and a fourth sub-plate (108) arranged sequentially and connected end to end. The bottom plate (103), the third sub-plate (107), and the fourth sub-plate (108) constitute a first part (101), and the top plate (104), the first sub-plate (105), and the second sub-plate (106) constitute a second part. The first part (101) and the second part (102) are detachably connected. The accommodating space is defined by the electrical control component (200) and the reactor component (300), both of which are disposed on the first part (101). The partition component (110) is connected to the bottom plate (103) and abuts against the first sub-plate (105). The second air inlet (131) is disposed on the first sub-plate (105). The electrical control component (200) is disposed on the third sub-plate (107) and / or the fourth sub-plate (108). The first air inlet (121) is disposed on the second sub-plate (106) and the fourth sub-plate (108). The box air outlet is disposed on the bottom plate (103).

2. The electrical control box according to claim 1, characterized in that, The electrical control box (100) also includes a heat dissipation component (140), which is connected to the box body.

3. The electrical control box according to claim 2, characterized in that, The heat dissipation assembly (140) includes an air guide shroud (141) and a heat sink (142). The air guide shroud (141) is fixed to the outer side of the box body. A ventilation channel is formed inside the air guide shroud (141), and the heat sink (142) is disposed inside the ventilation channel.

4. The electrical control box according to claim 1, characterized in that, The partition assembly (110) forms a box (111) with an opening (112). The reactor assembly (300) is disposed inside the box (111). The side of the box body with the second air inlet (131) abuts against the opening (112). The second air inlet (131) communicates with the interior of the box (111) through the opening (112). The partition air outlet (113) is disposed on the box body (111) and is disposed opposite to the opening (112).

5. The electrical control box according to claim 1, characterized in that, The electronic control assembly (200) includes a module board (210), a filter board (220), and a main control board (230). The module board (210), the filter board (220) and the main control board (230) are all disposed on the third sub-board (107), or two of the module board (210), the filter board (220) and the main control board (230) are disposed on the third sub-board (107) and the other is disposed on the second sub-board (106) or the fourth sub-board (108).

6. The electrical control box according to claim 5, characterized in that, The module board (210) and the filter board (220) are arranged side by side on the third sub-board (107) along the extension direction of the third sub-board (107), and the main control board (230) is stacked with the filter board (220) in a direction perpendicular to the third sub-board (107).

7. The electrical control box according to claim 6, characterized in that, The electrical control box (100) also includes a fixing frame (240), which is connected to the third sub-board (107). The main control board (230) is disposed on the fixing frame (240). There is an installation gap between the fixing frame (240) and the third sub-board (107). The filter board (220) is disposed in the installation gap and connected to the third sub-board (107). The filter board (220) can slide relative to the third sub-board (107) in the direction from the bottom plate (103) towards the top plate (104).

8. An air source heat pump air conditioner, characterized in that, include: The housing (400) has a first partition (410) with a first communication port (411) on the first partition (410), and an upper chamber (403) and a lower chamber are formed on both sides of the first partition (410); The electrical control box (100) according to any one of claims 1-7 is disposed in the upper chamber (403); A wind-side heat exchange assembly (500) is disposed in the lower chamber and includes an airflow drive (510) and a wind-side heat exchanger (520) disposed corresponding to the airflow drive (510). The air outlet of the box is connected to the lower chamber through the first connecting port (411), and the airflow driving member (510) can drive the airflow (A) to flow from the air outlet of the box into the lower chamber.

9. The air source heat pump air conditioner according to claim 8, characterized in that, The first partition (410) is also provided with a second communication port (412). The air outlet of the heat dissipation component (140) connected to the box body is correspondingly provided and connected to the second communication port (412). The airflow driving component can drive the airflow (A) to flow from the air outlet of the heat dissipation component (140) to the lower cavity.

10. The air source heat pump air conditioner according to claim 8, characterized in that, The housing (400) also has a second partition (420) connected between the first partition (410) and the bottom wall (401) of the housing (400), and divides the lower chamber into a first chamber (404) and a second chamber (405), and the air-side heat exchange assembly (500) is disposed in the first chamber (404). The air source heat pump air conditioner also includes a water-side heat exchange component and a compressor (800), which are disposed in the second chamber (405).

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