Electric control box and heat exchange system

Abstract

The utility model relates to the technical field of electric control boxes, and discloses an electric control box and a heat exchange system. The electric control box comprises a shell which defines an accommodating space with an air inlet and an air outlet; the components are located in the containing space, the components are divided into a plurality of component groups, and the heating value intervals of the component groups are different; the partition plates are located in the shell and divide the containing space into a plurality of air channels, and each air channel communicates with the air inlet and the air outlet; wherein at least two component groups in the plurality of component groups are located in different air channels, and the air volume in the air channels is matched with the heating value of the corresponding component groups. By additionally arranging the partition plates, the internal structure of the electric control box is improved, and the air volume is redistributed, so that the air volume in each air duct can be matched with the heating value of the internal component, and the heat dissipation effect of the component is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric control boxes, for example, to an electric control box and a heat exchange system. Background Art

[0002] At present, as the integration of circuit boards becomes higher and higher, and the arrangement becomes denser and denser, the difficulty of heat dissipation increases. There are several components arranged on the circuit board. When designing, the electromagnetic interference and electromagnetic compatibility between the components must be considered to determine the arrangement of the components. It is inevitable that components with high heat generation will be concentrated, resulting in heat dissipation difficulties, or components with high heat generation will be adjacent to components with poor heat resistance, causing the components with poor heat resistance to be baked and damaged by overheating.

[0003] In the related art, for components that generate extremely high amounts of heat, a refrigerant radiator or a fin radiator is added separately; if the heat generated by the components on the circuit board is very small, air cooling can be used directly to solve the problem.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] In the electric control box in the related technology, most of the components generate very little heat, but a small part generates a lot of heat. Adding a heat sink alone will greatly increase the cost, and the problem is often solved by increasing the air volume. Because the temperature of a certain component is high, the air intake of the electric control box must be increased by 3-4 times. The most direct way to increase the air intake is to increase the air inlet, but this will also cause the waterproof, dustproof and anti-flying insect performance of the electric control box to deteriorate, and reduce the service life.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide an electric control box and a heat exchange system to improve the utilization of air volume in the electric control box, reduce the temperature of components in the electric control box, and improve the heat dissipation effect.

[0009] An embodiment of the present disclosure provides an electric control box, which includes: a shell, which defines a storage space with an air inlet and an air outlet; components, which are located in the storage space, and the components are divided into a plurality of component groups, and the heat generation ranges of the plurality of component groups are different; a partition, which is located in the shell, and divides the storage space into a plurality of air ducts, and each air duct is connected to the air inlet and the air outlet; wherein at least two of the plurality of component groups are located in different air ducts, and the air volume in the air duct matches the heat generation of the corresponding component group.

[0010] In the disclosed embodiment, the partition divides the shell into multiple air ducts, each of which is connected to the air inlet and the air outlet, so that air flows in each air duct, and the components in each air duct can be ventilated and dissipated. The air volume in the air duct matches the heat generated by the components in the air duct, so that the air volume of the air duct can be more reasonably distributed, the air supply can be realized in different zones, the cost of heat dissipation of the electric control box can be reduced, and the life of the electric control box can be extended.

[0011] Optionally, a plurality of air ducts are arranged side by side along the width or length direction of the shell.

[0012] In the disclosed embodiment, a plurality of air ducts are arranged side by side along the width or length direction of the shell, which facilitates the arrangement of a plurality of components and the external setting of fans or vents. There is no need to set ventilation equipment in multiple directions of the electrical control box, thereby further reducing the complexity and cost of the electrical control box.

[0013] Optionally, the multiple air ducts include adjacent first and second air ducts, the first and second air ducts are located on both sides of the partition, and the multiple component groups include: a first component group, located in the first air duct; a second component group, located in the second air duct, and the heat generated by the first component group is greater than the heat generated by the second component group; wherein, along the direction from the air inlet to the air outlet, the flow area of ​​at least part of the first air duct gradually decreases, and the flow area of ​​at least part of the second air duct gradually increases; or, along the direction from the air inlet to the air outlet, the flow area of ​​the first air duct and / or the second air duct remains unchanged.

[0014] In the disclosed embodiment, the components in the electric control box include a first component group and a second component group, and the first component group and the second component group have different calorific values. The calorific value of the first component group is greater than that of the second component group. The first component group and the second component group are respectively arranged in the first air duct and the second air duct, so that the air volume of the accommodation space can be redistributed through the partition, so that components with different calorific values ​​can be provided with corresponding air ducts, thereby improving the utilization efficiency of the air volume, improving the heat dissipation effect of the electric control box, saving costs, and no need to increase the air inlet, so as to ensure the waterproof, insect-proof and dust-proof functions of the electric control box. The flow area of ​​the first air duct near the air inlet is larger, so as to improve the heat dissipation effect of the first component group. The area of ​​the second air duct near the air inlet is smaller, so as to avoid more space for the adjacent air duct, so as to increase the air volume of the adjacent air duct and meet the heat dissipation requirements of the components with higher calorific values. The flow area of ​​the first air duct near the air outlet is smaller than the flow area near the air inlet, which can speed up the air outlet speed of the first air duct. Since the heat generation of the first component group in the first air duct is high, the air flow speed in the first air duct can be increased, thereby improving the heat exchange efficiency between the first component group and the air flow, and improving the heat dissipation effect. The flow area of ​​the second air duct near the air outlet is larger, which can avoid the situation where the flow area of ​​the second air duct is too small, resulting in too small air volume in the second air duct, causing the temperature of the second air duct to overheat. Alternatively, the flow area of ​​the first air duct and the second air duct themselves can also remain unchanged, which is convenient for the setting of the partition and the installation of the component group in each air duct, and the flow area of ​​the first air duct and the second air duct can be adjusted by adjusting the position of the partition to improve the heat dissipation effect.

[0015] Optionally, the shell includes: a first side wall, having an air inlet; a second side wall, arranged opposite to the first side wall, having an air outlet; one end of the partition is abutted against or spaced apart from the first side wall, and the other end of the partition is abutted against or spaced apart from the second side wall.

[0016] In the disclosed embodiment, both ends of the partition are spaced from the first side wall and the second side wall, so that the airflow inflow and outflow of the air inlet can be guaranteed, and the first air duct and the second air duct can be mixed at the air inlet and the air outlet, thereby increasing the airflow velocity in the accommodation space and improving the heat dissipation efficiency. Alternatively, both ends of the partition are in contact with the first side wall and the second side wall, so that the diversion effect of the first air duct and the second air duct can be improved, and the air volume of the first air duct or the second air duct can be guaranteed.

[0017] Optionally, a partition includes: a first folding plate, one end of which corresponds to the first side wall and extends toward the second side wall; a second folding plate, one end of which corresponds to the second side wall and extends toward the first side wall; a third folding plate connected between the other end of the first folding plate and the other end of the second folding plate; wherein, along the direction from the first side wall to the second side wall, the third folding plate is inclined toward the first air duct.

[0018] In the disclosed embodiment, the first folding plate corresponds to the first side wall, the second folding plate corresponds to the second side wall, and the third folding plate is inclined toward the first air duct along the direction from the first side wall to the second side wall, so that the flow area of ​​the first air duct and the second air duct can be changed by setting the first folding plate, the second folding plate and the third folding plate. The third folding plate extends along the direction from the first side wall to the second side wall, and the first folding plate and the second folding plate both extend along the direction from the first side wall to the second side wall, which means that the first folding plate is located on the side of the third folding plate facing the second air duct, and the second folding plate is located on the side of the third folding plate facing the first air duct, and the third folding plate is further inclined, so that the flow area of ​​the first air duct on one side of the partition can be gradually reduced along the flow direction of the airflow in the first air duct, and correspondingly, the flow area of ​​the second air duct on the other side of the partition gradually increases along the flow direction of the airflow in the second air duct. In this way, the air volume distribution in the first air duct and the second air duct is more reasonable, so that the air volume can match the components with different heat generation, so as to improve the heat dissipation effect of the electric control box, reduce costs, and save energy consumption.

[0019] Optionally, a side wall of the partition facing the first air duct is provided with a reflective coating.

[0020] In the disclosed embodiment, since the first component group in the first air duct generates a large amount of heat, a reflective coating is provided on the side wall of the partition facing the first air duct, which can enhance the thermal insulation performance of the partition and prevent the heat from the first air duct from being transferred to the second air duct, thereby preventing the temperature-sensitive components in the second air duct from overheating, thereby ensuring the normal operation of the electrical control box.

[0021] Optionally, the first component group includes a PFC inductor and / or a choke; the second component group includes an electrolytic capacitor and / or a relay.

[0022] In the disclosed embodiment, the heat generated by the PFC inductor and the choke is about 20W, and the risk of overheating of the PFC inductor and the choke is relatively high, so the PFC inductor and / or the choke are arranged in the first air duct, and the larger air volume in the first air duct is used to improve the heat dissipation effect of the PFC inductor and / or the choke. The heat generated by the electrolytic capacitor and the relay is relatively small, generally about 2W, so the electrolytic capacitor and / or the relay are arranged in the second air duct to reduce the occupied air volume and ensure the heat dissipation effect of the first component group in the first air duct.

[0023] Optionally, the electric control box further comprises: a circuit board, components are arranged on the circuit board, and the lower end of the partition is connected to the circuit board; wherein the upper end of the partition abuts against the top wall of the shell, or the upper end of the partition is spaced apart from the top wall of the shell.

[0024] In the disclosed embodiment, the circuit board is used to set a plurality of components to achieve electrical connectivity of the plurality of components. A partition is disposed above the circuit board, and the partition extends upward from the circuit board, so that the first air duct and the second air duct can be better separated, and the first component group and the second component group can also be separated. The upper end of the partition abuts against the top wall of the shell, so that the first air duct and the second air duct are two independent spaces, which can avoid cross-wind between the first air duct and the second air duct. Alternatively, the upper end of the partition is spaced apart from the top wall of the shell, so that the spaces of the first air duct and the second air duct can be connected, so that the first air duct and the second air duct can be separated, but there is still a small amount of airflow flowing at the top, which can speed up the airflow and dissipate heat for the first component group and the second component group.

[0025] Optionally, when the upper end of the partition is spaced apart from the top wall of the shell, the electrical control box also includes: a guide plate, which is arranged above the partition, and the guide plate is inclined from the partition toward the first air duct along the direction from bottom to top, or, along the direction from bottom to top, the guide plate partition is inclined toward the second air duct.

[0026] In the disclosed embodiment, when the upper end of the partition is spaced apart from the top wall of the shell, the first air duct and the second air duct can be ventilated. A guide plate can be arranged above the partition to guide the airflow between the first air duct and the second air duct. In the direction from bottom to top, the guide plate partition is inclined toward the second air duct, so that when the air volume in the first air duct is insufficient, the guide plate can guide part of the heat in the first air duct to flow along the guide plate into the second air duct, thereby reducing the temperature in the first air duct. In the direction from bottom to top, the guide plate is inclined from the partition toward the first air duct, so that when the air volume in the second air duct is insufficient, there may be an overtemperature in the second air duct, and the heat in the second air duct can flow into the first air duct through the guide plate to reduce the temperature in the second air duct.

[0027] The disclosed embodiment further provides a heat exchange system, which includes the electronic control box described in any one of the above embodiments.

[0028] The electric control box and heat exchange system provided by the embodiments of the present disclosure can achieve the following technical effects:

[0029] In the disclosed embodiment, the partition separates the shell into a plurality of air ducts, and each air duct is connected to the air inlet and the air outlet, so that air can flow in each air duct to improve the heat dissipation effect of the components in the air duct. It can be understood that according to the heat generation range to which the heat generation of the components belongs, the plurality of components are divided into a plurality of component groups, and the component groups with different heat generation are placed in different air ducts respectively. In this way, the structure inside the electric control box can be improved by adding partitions without increasing the air volume, and the air volume can be redistributed so that the air volume in each air duct can match the heat generation of the components inside it, and the heat dissipation is performed in different zones, thereby improving the heat dissipation effect of the components. In this way, there is no need to increase the air volume or the air inlet, so as to avoid the deterioration of the waterproof, dustproof and anti-flying insect performance of the electric control box and improve the service life of the electric control box.

[0030] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0032] Figure 1 is a structural schematic diagram of an electric control box provided by an embodiment of the present disclosure;

[0033] Figure 2 is a partial structural schematic diagram of an electric control box provided in an embodiment of the present disclosure;

[0034] Figure 3 is a schematic cross-sectional structure diagram of an electric control box provided in an embodiment of the present disclosure;

[0035] Figure 4 is a schematic cross-sectional structure diagram of another electric control box provided by an embodiment of the present disclosure;

[0036] Figure 5 is a partial structural schematic diagram of another electric control box provided by an embodiment of the present disclosure;

[0037] Figure 6 is a partial structural schematic diagram of another electric control box provided by an embodiment of the present disclosure;

[0038] Figure 7 It is a schematic diagram of the cross-sectional structure of an electric control box provided in an embodiment of the present disclosure.

[0039] Reference numerals:

[0040] 10. Shell; 101. Accommodating space; 102. Air inlet; 103. Air outlet; 104. First air duct; 105. Second air duct; 106. First side wall; 107. Second side wall; 108. Circuit board; 20. Partition; 201. First folding plate; 202. Second folding plate; 203. Third folding plate; 204. Guide plate; 30. First component group; 301. PFC inductor; 302. Choke; 40. Second component group; 401. Electrolytic capacitor; 402. Relay. DETAILED DESCRIPTION

[0041] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0042] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0043] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0045] Unless otherwise stated, the term "plurality" means two or more.

[0046] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0048] For ease of description, Figure 7 As shown, the length direction of the present application refers to the left-right direction, and the width direction refers to the front-back direction. Figure 7 The thin arrow indicates the flow direction of the airflow in the first air duct, and the thick arrow indicates the flow direction of the airflow in the second air duct.

[0049] Combination Figures 1 to 7 As shown, an embodiment of the present disclosure provides an electric control box, which includes a shell 10, components and a partition 20. The shell 10 defines a storage space 101 with an air inlet 102 and an air outlet 103. The components are located in the storage space 101, and the number of components is multiple. The multiple components include multiple component groups, and the heat generation ranges of the multiple component groups are different. The partition 20 is located in the shell 10, and divides the storage space 101 into multiple air ducts, each of which is connected to the air inlet 102 and the air outlet 103. At least two of the multiple component groups are located in different air ducts, and the air volume in the air duct matches the heat generation of the corresponding component group.

[0050] In the disclosed embodiment, the partition 20 divides the housing 10 into a plurality of air ducts, each of which is connected to the air inlet 102 and the air outlet 103, so that air flows in each air duct, and the components in each air duct can be ventilated and dissipated. The air volume in the air duct matches the heat generated by the components in the air duct, so that the air volume in the air duct can be more reasonably allocated, the air supply can be realized by partitioning, the cost of heat dissipation of the electric control box can be reduced, and the life of the electric control box can be extended.

[0051] Optionally, multiple components are divided into multiple component groups according to the heat value range. For example, components with a heat value less than or equal to a first preset value are divided into a low-temperature component group, components with a heat value greater than the first preset value and less than or equal to a second preset value are divided into a medium-temperature component group, and components with a heat value greater than the second preset value are divided into a high-temperature component group.

[0052] In practical applications, the number of component groups can be two, three or more. The number of component groups can be determined according to the size of the electrical control box and the type and layout of the components. Any method that can achieve zoned air supply and heat dissipation belongs to the optional embodiments of the present application.

[0053] Alternatively, if Figure 7 As shown, a plurality of air ducts are arranged side by side along the width or length direction of the housing 10 .

[0054] In the disclosed embodiment, a plurality of air ducts are arranged side by side along the width or length direction of the shell 10, which facilitates the arrangement of a plurality of components and the external setting of fans or vents. There is no need to set ventilation equipment in multiple directions of the electric control box, thereby further reducing the complexity and cost of the electric control box.

[0055] Optionally, the number of the partitions 20 is one or more, and one partition 20 can divide the accommodating space 101 into two air ducts. When the number of the partitions 20 is multiple, multiple partitions 20 can divide the accommodating space 101 into multiple air ducts.

[0056] Alternatively, if Figure 2 and Figure 7 As shown, the multiple air ducts include a first air duct 104 and a second air duct 105, and the multiple component groups include a first component group 30 and a second component group 40. The first component group 30 is located in the first air duct 104; the second component group 40 is located in the second air duct 105, and the heat generated by the first component group 30 is greater than the heat generated by the second component group 40.

[0057] In the disclosed embodiment, the components in the electric control box include a first component group 30 and a second component group 40. The heat generated by the first component group 30 is greater than the heat generated by the second component group 40, and the first component group 30 and the second component group 40 are respectively arranged in the first air duct 104 and the second air duct 105. In this way, the air volume of the accommodating space 101 can be redistributed through the partition 20, so that components with different heat generation can be provided with corresponding air ducts, thereby improving the utilization efficiency of the air volume, improving the heat dissipation effect of the electric control box, saving costs, and there is no need to increase the air inlet 102, thereby ensuring the waterproof, insect-proof and dust-proof functions of the electric control box.

[0058] Optionally, the first air duct 104 and the second air duct 105 are arranged adjacent to each other, so that changing the layout of the partition 20 can adjust the flow areas of the first air duct 104 and the second air duct 105 at the same time.

[0059] Alternatively, if Figure 7 As shown, the first air duct 104 and the second air duct 105 are arranged side by side along the length direction of the housing 10 .

[0060] In the embodiment of the present disclosure, the first air duct 104 and the second air duct 105 are arranged side by side along the width direction of the shell 10, which facilitates the arrangement of the first component group 30 and the second component group 40, and facilitates the external setting of fans or vents, without the need to set ventilation equipment in multiple directions of the electrical control box.

[0061] In some optional embodiments, along the direction from the air inlet 102 to the air outlet 103 , the flow area of ​​at least a portion of the first air duct 104 gradually decreases.

[0062] In the disclosed embodiment, the first component group 30 in the first air duct 104 generates a large amount of heat, and therefore, the flow area of ​​the first air duct 104 near the air inlet 102 is large to improve the heat dissipation effect on the first component group 30. As the direction approaches the air outlet 103, at least part of the flow area of ​​the first air duct 104 decreases, which can increase the air flow speed in the first air duct 104, reduce the space occupied by the adjacent air duct, and ensure the air volume of the adjacent second air duct near the air outlet 103, so as to avoid insufficient air volume in the second air duct and cause overheating. In addition, as the direction approaches the air outlet 103, the flow area of ​​the first air duct 104 decreases, and the direction of the first air duct 104 near the air outlet 103 accelerates, thereby improving the heat exchange effect between the airflow and the first component group 30, and thus improving the heat dissipation effect.

[0063] Optionally, along the direction from the air inlet 102 to the air outlet 103 , the flow area of ​​the first air duct 104 gradually decreases, or the flow area of ​​a part of the first air duct 104 gradually decreases.

[0064] In the embodiment of the present disclosure, along the direction from the air inlet 102 to the air outlet 103, the flow area of ​​a first air duct 104 can be gradually reduced as a whole, or can be gradually reduced in part. The flow area of ​​the first air duct 104 is gradually reduced as a whole, so that the arrangement and structure of the partition 20 are simpler. The flow area of ​​the first air duct 104 is gradually reduced in part, so that the distribution of the airflow in the first air duct 104 is more precise, and the heat dissipation effect is improved.

[0065] Optionally, along the direction from the air inlet 102 to the air outlet 103 , the flow area of ​​at least a portion of the second air duct 105 gradually increases.

[0066] In the disclosed embodiment, since the heat generation of the second component group 40 in the second air duct 105 is relatively small, the flow area of ​​at least part of the second air duct 105 gradually increases along the direction from the air inlet 102 to the air outlet 103. Therefore, the area of ​​the second air duct 105 near the air inlet 102 is relatively small, which can increase the flow speed of the second air duct 105 near the air inlet 102, improve the heat exchange effect, and also avoid more space for the adjacent first air duct to increase the air volume of the adjacent first air duct to meet the heat dissipation requirements of the first component group 30 with a relatively high heat generation in the first air duct. The flow area of ​​the second air duct 105 near the air outlet 103 is relatively large, which can avoid the situation where the flow area of ​​the second air duct 105 is too small, resulting in too small air volume in the second air duct 105, causing the temperature of the second air duct 105 to be overheated.

[0067] Optionally, along the direction from the air inlet 102 to the air outlet 103 , the flow area of ​​the second air duct 104 gradually increases, or the flow area of ​​a part of the second air duct 104 gradually increases.

[0068] In the embodiment of the present disclosure, along the direction from the air inlet 102 to the air outlet 103, the flow area of ​​a second air duct 104 can be gradually increased as a whole, or can be gradually increased in part. The flow area of ​​the second air duct is gradually increased as a whole, so that the arrangement and structure of the partition 20 are simpler. The flow area of ​​part of the second air duct 104 is gradually increased, so that the distribution of the airflow in the second air duct 104 is more precise, and the heat dissipation effect is improved.

[0069] In some other optional embodiments, along the direction from the air inlet 102 to the air outlet 103, the flow area of ​​the first air duct 104 and / or the second air duct 105 remains unchanged.

[0070] In the embodiment of the present disclosure, the flow area of ​​the first air duct 104 and / or the second air duct 105 may not change, which is convenient for the installation and production of the partition, and also convenient for the installation of the first component group 30 and the second component group 40. In addition, the flow area of ​​the first air duct 104 and the second air duct 105 can be adjusted by adjusting the position of the partition 20, thereby adjusting the air volume of each air duct and improving the heat dissipation effect in different air ducts.

[0071] Optionally, the partition 20 is a straight plate or a folded plate.

[0072] In the embodiment of the present disclosure, when the partition 20 is a straight plate, optionally, the partition 20 can be parallel to the length direction or the width direction of the housing 10, so that when the housing 10 is a cube, the partition of the straight plate makes the flow area of ​​the first air duct 104 and the second air duct 105 on both sides unchanged. Optionally, the straight plate is arranged to be inclined so that the flow area of ​​the first air duct 104 along the direction from the air inlet 102 to the air outlet 103 gradually decreases, and the flow area of ​​the second air duct 105 along the direction from the air inlet 102 to the air outlet 103 gradually increases.

[0073] Optionally, when the partition 20 is a folding plate, the partition 20 can achieve partial area changes of the first air duct 104 and the second air duct 105, thereby making the air volume in each air duct more precise and improving the heat dissipation effect of components in the electric control box.

[0074] Optionally, when the space in the shell is irregular, the partition may also be in the shape of a folded plate, so that the flow area of ​​the separated air duct along the air flow direction thereof remains unchanged.

[0075] Optionally, along the direction from the air inlet to the air outlet, the flow area of ​​the first air duct and / or the second air duct remains unchanged. When the flow area of ​​the first air duct 104 is the same as that of the second air duct 105, or, along the flow direction of the airflow, the flow area of ​​the first air duct 104 is greater than that of the second air duct 105.

[0076] In the embodiment of the present disclosure, the flow areas of the first air duct 104 and the second air duct 105 may be the same or different. When the flow areas of the first air duct 104 and the second air duct 105 are the same, it is convenient to install the first component group 30 and the second component group 40 without distinguishing the space. The flow area of ​​the first air duct 104 may also be larger than the flow area of ​​the second air duct 105, so that the heat dissipation effect of the first component group 30 in the first air duct 104 can be improved.

[0077] Optionally, the flow area of ​​the first air duct 104 is smaller than the flow area of ​​the second air duct 105 , which can increase the flow speed of the airflow in the first air duct 104 and further improve the heat dissipation effect of the first component group 30 .

[0078] Optionally, the housing 10 includes a first side wall 106 and a second side wall 107 , the first side wall 106 is provided with an air inlet 102 ; the second side wall 107 is arranged opposite to the first side wall 106 , and the second side wall 107 is provided with an air outlet 103 .

[0079] In the disclosed embodiment, the air inlet 102 and the air outlet 103 are arranged opposite to each other, so that the flow directions of the airflow in the air duct are the same, which facilitates the arrangement of an external ventilation device.

[0080] Optionally, one end of the partition plate 20 is connected to or spaced apart from the first side wall 106 , and the other end of the partition plate 20 is abutted against or spaced apart from the second side wall 107 .

[0081] In the embodiment of the present disclosure, both ends of the partition 20 are spaced from the first side wall 106 and the second side wall 107, so that the airflow inflow and outflow of the air inlet 102 can be guaranteed, and the first air duct 104 and the second air duct 105 can be mixed at the air inlet 102 and the air outlet 103, thereby increasing the airflow velocity in the accommodation space 101 and improving the heat dissipation efficiency. Alternatively, both ends of the partition 20 are in contact with the first side wall 106 and the second side wall 107, so that the diversion effect of the first air duct 104 and the second air duct 105 can be improved, and the air volume of the first air duct or the second air duct can be guaranteed.

[0082] Optionally, the first side wall 106 and the second side wall 107 are arranged along the width direction of the shell to increase the cross-sectional area of ​​the first air duct and the second air duct, thereby increasing the air volume and improving the heat dissipation effect.

[0083] Optionally, the number of the air inlets 102 is one or more. When the number of the air inlets 102 is plural, one air duct is connected to at least one air inlet 102 .

[0084] Optionally, when there are multiple air inlets 102 , the multiple air inlets 102 are sequentially spaced apart along the length direction of the first side wall 106 .

[0085] For example, the number of air inlets 102 is the same as the number of air ducts and corresponds one to one, so that air leakage between adjacent air ducts can be avoided.

[0086] Optionally, the number of the air outlets 103 is one or more. When the number of the air outlets 103 is plural, an air duct is connected to at least one air outlet 103 .

[0087] For example, the number of the air outlets 103 is the same as the number of the air ducts and corresponds one to one, which can further prevent air leakage from adjacent air ducts.

[0088] Alternatively, if Figure 2 As shown, when the partition 20 is a folding plate, the first air duct 104 and the second air duct 105 are located on both sides of the partition 20, and the partition 20 includes a first folding plate 201, a second folding plate 202 and a third folding plate 203, one end of the first folding plate 201 corresponds to the first side wall 106 and extends toward the second side wall 107; one end of the second folding plate 202 corresponds to the second side wall 107 and extends toward the first side wall 106; the third folding plate 203 is connected between the other end of the first folding plate 201 and the other end of the second folding plate 202; wherein, along the direction from the first side wall 106 to the second side wall 107, the third folding plate 203 is inclined toward the first air duct 104.

[0089] In the embodiment of the present disclosure, the first folding plate 201 corresponds to the first side wall 106, the second folding plate 202 corresponds to the second side wall 107, and the third folding plate 203 is inclined toward the first air duct 104 along the direction from the first side wall 106 to the second side wall 107. In this way, the flow area of ​​the first air duct 104 and the second air duct 105 can be changed by the arrangement of the first folding plate 201, the second folding plate 202 and the third folding plate 203. The third folding plate 203 extends from the first side wall 106 to the second side wall 107, and the first folding plate 201 and the second folding plate 202 both extend from the first side wall 106 to the second side wall 107, which means that the first folding plate 201 is located on the side of the third folding plate 203 facing the second air duct 105, and the second folding plate 202 is located on the side of the third folding plate 203 facing the first air duct 104, and the third folding plate 203 is tilted, so that the flow area of ​​the first air duct 104 on one side of the partition 20 can be gradually reduced along the flow direction of the airflow in the first air duct 104, and correspondingly, the flow area of ​​the second air duct 105 on the other side of the partition 20 can be gradually increased along the flow direction of the airflow in the second air duct 105. In this way, the air volume distribution in the first air duct 104 and the second air duct 105 is more reasonable, so that the air volume can match the components with different heat generation, so as to improve the heat dissipation effect of the electric control box, reduce costs, and save energy consumption.

[0090] Optionally, the first folding plate 201 is connected to or abuts against the first side wall 106, and / or the second folding plate 202 is connected to or abuts against the second side wall 107. In this way, the airflow flowing into the accommodation space 101 can be diverted from the air outlet 103, further increasing the air volume in the first air duct 104.

[0091] Optionally, one end of the partition 20 corresponds to the first side wall 106 and is spaced apart from each other. Along the direction from the second side wall 107 to the first side wall 106, the projection of one end of the partition 20 on the air inlet 102 divides the air inlet 102 into a first air inlet and a second air inlet. The other end of the partition 20 corresponds to the second side wall 107 and is spaced apart from each other. Along the direction from the first side wall 106 to the second side wall 107, the projection of the other end of the partition 20 on the air outlet 103 divides the air outlet 103 into a first air outlet and a second air outlet. The first air duct 104 is connected to the first air inlet and the first air outlet, and the second air duct 105 is connected to the second air inlet and the second air outlet. The area of ​​the first air inlet is greater than the area of ​​the second air inlet, and the area of ​​the first air outlet is smaller than the area of ​​the second air outlet.

[0092] In the embodiment of the present disclosure, the area of ​​the first air inlet is larger than the area of ​​the second air inlet, so that the airflow into the first air duct 104 is larger than the airflow into the second air duct 105, and the airflow into the first air duct 104 can be guaranteed. The area of ​​the first air outlet is smaller than the area of ​​the second air outlet, so that the flow area of ​​the second air inlet and the downstream of the second air duct 105 is matched, so as to increase the airflow of the second air duct 105 close to the air outlet 103.

[0093] Alternatively, if Figures 3 to 6 As shown, the electric control box also includes a circuit board 108, the first component group 30 and the second component group 40 are arranged on the circuit board 108, and the lower end of the partition 20 is connected to the circuit board 108; wherein, the upper end of the partition 20 abuts against the top wall of the shell 10, or the upper end of the partition 20 is spaced apart from the top wall of the shell 10.

[0094] In the disclosed embodiment, the circuit board 108 is used to set a plurality of components to achieve electrical connectivity of the plurality of components. The partition 20 is arranged above the circuit board 108, and the partition 20 extends upward from the circuit board 108, so that the first air duct 104 and the second air duct 105 can be better separated, and the first component group 30 and the second component group 40 can also be separated. The upper end of the partition 20 abuts against the top wall of the housing 10, so that the first air duct 104 and the second air duct 105 are two independent spaces, which can avoid the first air duct 104 and the second air duct 105 from being connected at the top. Alternatively, the upper end of the partition 20 is spaced from the top wall of the housing 10, so that the spaces of the first air duct 104 and the second air duct 105 can be connected, so that the first air duct 104 and the second air duct 105 can be separated, but there is still a small amount of air flow at the top, which can speed up the air flow, so that the air volume of the first air duct and the second air duct can be further adjusted, and the heat dissipation efficiency of the first component group 30 and the second component group 40 is improved.

[0095] Alternatively, if Figure 5 and Figure 6 As shown, when the upper end of the partition 20 is spaced apart from the top wall of the shell 10, the electrical control box also includes a guide plate 204, which is arranged above the partition 20. From bottom to top, the guide plate 204 is inclined from the partition 20 toward the first air duct 104, or, from bottom to top, the guide plate 204 is inclined from the partition 20 toward the second air duct 105.

[0096] In the embodiment of the present disclosure, when the upper end of the partition 20 is spaced apart from the top wall of the housing 10, the first air duct 104 and the second air duct 105 can be ventilated. A guide plate 204 can be arranged above the partition 20 to guide the airflow between the first air duct 104 and the second air duct 105. From bottom to top, the guide plate 204 and the partition 20 are inclined toward the second air duct 105, so that when the air volume in the first air duct 104 is insufficient, the guide plate 204 can guide part of the heat in the first air duct 104 to flow along the guide plate 204 into the second air duct 105, thereby reducing the temperature in the first air duct 104. Along the direction from bottom to top, the guide plate 204 is inclined from the partition 20 toward the first air duct 104, so that when the air volume in the second air duct 105 is insufficient, the second air duct 105 may be overheated. The heat in the second air duct 105 can flow into the first air duct 104 through the guide plate 204, thereby reducing the temperature in the second air duct 105.

[0097] Optionally, a side wall of the partition 20 facing the first air duct 104 is provided with a reflective coating.

[0098] In the disclosed embodiment, since the first component group 30 in the first air duct 104 generates a large amount of heat, a reflective coating is provided on the side wall of the partition 20 facing the first air duct 104, which can enhance the thermal insulation performance of the partition 20 and prevent the heat of the first air duct 104 from being transferred to the second air duct 105, thereby preventing the temperature-sensitive components in the second air duct 105 from overheating, thereby ensuring the normal operation of the electrical control box.

[0099] Alternatively, if Figure 2 As shown, the first component group 30 includes a PFC inductor 301 and / or a choke 302 .

[0100] In the disclosed embodiment, the heat generated by the PFC inductor 301 and the choke 302 is about 20W, and the over-temperature risk of the PFC inductor 301 and the choke 302 is relatively large. Therefore, the PFC inductor 301 and / or the choke 302 are arranged in the first air duct 104, and the larger air volume in the first air duct 104 is used to improve the heat dissipation effect of the PFC inductor 301 and / or the choke 302.

[0101] Optionally, the second component group 40 includes an electrolytic capacitor 401 and / or a relay 402 .

[0102] In the disclosed embodiment, the heat generated by the electrolytic capacitor 401 and the relay 402 is relatively small, generally around 2 W. Therefore, the electrolytic capacitor 401 and / or the relay 402 are arranged in the second air duct 105 to reduce the occupied air volume and ensure the heat dissipation effect of the first component group 30 in the first air duct 104.

[0103] The disclosed embodiment further provides a heat exchange system, which includes an electric control box as described in any one of the above embodiments.

[0104] The heat exchange system provided by the embodiment of the present disclosure includes the electric control box of any one of the above embodiments, and thus has the beneficial effects of the electric control box of any one of the above embodiments, which will not be described in detail here.

[0105] Optionally, the heat exchange system may be a refrigeration unit.

[0106] Optionally, the heat exchange system includes an outdoor unit, and the outdoor unit includes an electric control box.

[0107] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electric control box, characterized in that: include: A housing defines a receiving space having an air inlet and an air outlet; Components are located in the accommodation space, the components are divided into a plurality of component groups, and the plurality of component groups belong to different heat generation ranges; A partition, located in the shell, divides the accommodation space into a plurality of air ducts, each of which is connected to the air inlet and the air outlet; At least two component groups among the multiple component groups are located in different air ducts, and the air volume in the air duct matches the heat generation of the corresponding component groups.

2. The electric control box according to claim 1, characterized in that: A plurality of air ducts are arranged side by side along the width or length direction of the shell.

3. The electric control box according to claim 1, characterized in that: The plurality of air ducts include a first air duct and a second air duct adjacent to each other, the first air duct and the second air duct are located on both sides of the partition, and the plurality of component groups include: A first component group is located in the first air duct; A second component group is located in the second air duct, and a heat generation of the first component group is greater than a heat generation of the second component group; Wherein, along the direction from the air inlet to the air outlet, the flow area of ​​at least part of the first air duct gradually decreases, and the flow area of ​​at least part of the second air duct gradually increases; or, Along the direction from the air inlet to the air outlet, the flow area of ​​the first air duct and / or the second air duct remains unchanged.

4. The electric control box according to claim 3, characterized in that: The housing includes: The first side wall is provided with an air inlet; A second side wall is arranged opposite to the first side wall, and the second side wall is provided with an air outlet; One end of the partition is in contact with or spaced apart from the first side wall, and the other end of the partition is in contact with or spaced apart from the second side wall.

5. The electric control box according to claim 4, characterized in that: A bulkhead includes: A first folding plate, one end of which corresponds to the first side wall and extends toward the second side wall; A second folding plate, one end of which corresponds to the second side wall and extends toward the first side wall; A third folding plate connected between the other end of the first folding plate and the other end of the second folding plate; Wherein, along the direction from the first side wall to the second side wall, the third folding plate is inclined toward the first air duct.

6. The electric control box according to claim 3, characterized in that: A reflective coating is provided on the side wall of the partition facing the first air duct.

7. The electric control box according to claim 1, characterized in that: The first component group includes a PFC inductor and / or a choke; The second component group includes an electrolytic capacitor and / or a relay.

8. The electric control box according to any one of claims 1 to 7, characterized in that: Also includes: A circuit board, components are arranged on the circuit board, and the lower end of the partition is connected to the circuit board; The upper end of the partition is in contact with the top wall of the shell, or the upper end of the partition is spaced apart from the top wall of the shell.

9. The electric control box according to claim 8, characterized in that: When the upper end of the partition is spaced apart from the top wall of the shell, the electric control box further comprises: The guide plate is arranged above the partition, and the guide plate is inclined from the partition toward the first air duct from bottom to top, or the guide plate partition is inclined toward the second air duct from bottom to top.

10. A heat exchange system, characterized in that: It comprises the electric control box as claimed in any one of claims 1 to 9.

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