Electric control box and machine room air conditioner

Abstract

The invention discloses an electric control box and a machine room air conditioner. The electric control box comprises a plurality of electric control devices, a radiator and a shell, and the radiator is arranged at a first opening of the shell; the multiple electric control devices are arranged in multiple installation areas of the containing cavity of the shell respectively, and every two adjacent installation areas are arranged in a spaced mode. According to the electric control box, the plurality of electric control devices of the electric control box are orderly planned in the plurality of installation areas, air flow can smoothly flow in the area between the two adjacent installation areas and enter and exit from the containing cavity from the radiator of the first opening, a heat dissipation channel is smooth, and the heat dissipation efficiency of the electric control box can be effectively improved. According to the electric control box, the heat dissipation requirement can be met only by forming the first opening in the shell, and the heat dissipation requirement, the waterproof requirement and the dustproof requirement can be effectively met.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an electric control box and a computer room air conditioner. Background Art

[0002] After the electric control box has been used for a period of time, it is easy to heat up when working because there are many electric control components inside. In the prior art, a heat dissipation port is often provided on the electric control box to exchange air with the outside through the heat dissipation port, so as to cool the electric control box. However, impurities such as moisture and dust from the outside can easily enter the electric control box through the heat dissipation port, thereby damaging the electric control components and affecting the service life and working stability of the electric control box. Summary of the invention

[0003] The embodiments of the present application provide an electric control box and a computer room air conditioner, which can solve the problem in the prior art that the electric control box of the computer room air conditioner is difficult to meet the requirements of heat dissipation and dust and water resistance.

[0004] In a first aspect, an embodiment of the present application provides an electric control box, comprising:

[0005] Multiple electronic control devices;

[0006] A radiator, used to dissipate heat from the electronic control device; and

[0007] The housing has a receiving cavity and a first opening communicating with the receiving cavity, wherein the heat sink is disposed at the first opening;

[0008] Wherein, the accommodating cavity includes multiple installation areas, multiple electronic control components are arranged in the multiple installation areas, and two adjacent installation areas are spaced apart. The heat of the electronic control components is dissipated to the area between two adjacent installation areas and dissipated out of the electronic control box from the radiator.

[0009] In some embodiments, the electric control device includes a heating element; the electric control box also includes:

[0010] A heat dissipation fan is arranged in the accommodating cavity and installed on the housing. In the vertical direction, the heat dissipation fan is located below the heating element and the radiator.

[0011] In some of the embodiments, in the vertical direction, the heating element is located below the heat sink; the heating element includes a driving board, a main control board and a reactor.

[0012] In some embodiments, the housing includes a top wall, a bottom wall, and a peripheral side wall connected between the top wall and the bottom wall, and the top wall, the bottom wall, and the peripheral side wall define a receiving cavity;

[0013] The accommodating cavity includes two installation areas, and the two installation areas are spaced apart in a direction perpendicular to the top wall toward the bottom wall.

[0014] In some embodiments, the peripheral side wall includes a front side wall and a rear side wall that are arranged opposite to each other, and the front side wall can be opened and closed; in the direction from the front side wall toward the rear side wall, the two installation areas are arranged at intervals;

[0015] The electric control box comprises a first support frame, which is mounted on the housing, wherein at least part of the electric control components are arranged on the first support frame to be in the mounting area.

[0016] In some embodiments, the first support frame is arranged in one of the installation areas, the electric control box further comprises a second support frame arranged in another installation area, and the second support frame is installed in the housing;

[0017] A part of the electric control components are arranged on the first support frame, and another part of the electric control components are arranged on the second support frame.

[0018] In some embodiments, in the direction from the front side wall to the rear side wall, the distance from the second support frame to the front side wall is smaller than the distance from the first support frame to the front side wall;

[0019] The second support frame has a hollow area, and the electric control device is detachably mounted on the second support frame corresponding to the hollow area.

[0020] In some embodiments, the electric control device includes a drive board, a drive heat sink, a reactor, a main control board and an air switch;

[0021] The driving heat sink is arranged on the driving board, the driving board and the reactor are arranged on the first supporting frame, and the main control board and the air chamber are arranged on the second supporting frame.

[0022] In some of the embodiments, a portion of the electronic control components are located in one of the installation areas and installed on the first support frame, and another portion of the electronic control components are located in another installation area and installed on the front side wall.

[0023] In some embodiments, the electric control device includes a drive board, a drive heat sink, a reactor, a main control board and an air switch;

[0024] The main control board is installed on the front side wall; the driving heat sink is arranged on the driving board, and the driving board, the reactor and the circuit breaker are installed on the first supporting frame.

[0025] In some embodiments, the first support frame is spaced apart from the front side wall and the rear side wall respectively.

[0026] In some embodiments, in a direction from the front side wall toward the rear side wall, the rear side wall has the first opening.

[0027] In some embodiments, the radiator has a plurality of vents connected to the accommodating cavity; a portion of the radiator extends into the accommodating cavity, and another portion extends out of the housing through the first opening.

[0028] In some embodiments, the radiator includes a first heat dissipation body and a plurality of first heat dissipation fins which are integrally arranged, the first heat dissipation body is mounted on the housing, the first heat dissipation fins are penetrated by the first opening, and the vent is provided between two adjacent first heat dissipation fins; or,

[0029] The radiator includes two heat dissipation units arranged corresponding to the first opening, one of the heat dissipation units is accommodated in the accommodating cavity, and the other heat dissipation unit is installed on the outer wall of the shell; each of the heat dissipation units includes a second heat dissipation body installed on the shell, and a plurality of second heat dissipation fins integrally arranged with the second heat dissipation body, and the vent is provided between two adjacent second heat dissipation fins.

[0030] The housing includes a mounting flange and a front side wall, the mounting flange defines a second opening for the electronic control device to enter and exit the accommodating cavity, the front side wall can be opened and closed on the mounting flange, and when the front side wall is installed in a closed state of the mounting flange, the front side wall is sealed and connected to the mounting flange.

[0031] In a second aspect, an embodiment of the present application provides a computer room air conditioner, comprising a support member and the electric control box as described above, wherein the housing of the electric control box is mounted on the support member.

[0032] In some embodiments, the support member has a heat exchange air duct and a heat exchange opening connected to the heat exchange air duct, the electric control box is arranged at the heat exchange opening, and a portion of the electric control box having the first opening extends into the heat exchange air duct.

[0033] Based on the electric control box and computer room air conditioner of the embodiment of the present application, by orderly planning the multiple electric control components of the electric control box in multiple installation areas, the airflow can flow smoothly in the area between two adjacent installation areas, and enter and exit the accommodating cavity from the radiator of the first opening. The heat of the electric control components is dissipated to the area between the two adjacent installation areas, and can be driven by the airflow to dissipate from the radiator to the electric control box. The heat dissipation path is smooth, which can effectively improve the heat dissipation efficiency of the electric control box. In addition, the electric control box of the present application only needs to open a first opening in the shell to meet the heat dissipation requirements, and there is no need to open openings in other positions of the shell. Other areas of the shell can be sealed to prevent foreign substances from entering and exiting the accommodating cavity of the shell. On the basis of only opening a first opening in the shell, it is also convenient for the electric control box to cooperate with other structures of the computer room air conditioner to waterproof and dustproof the first opening. Therefore, the electric control box of the present application can effectively take into account the heat dissipation and waterproof and dustproof requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of an electric control box according to an embodiment of the present application;

[0036] Figure 2 This is a schematic diagram of a three-dimensional structure of an electric control box in an embodiment of the present application, in which the front side wall is in an open state;

[0037] Figure 3 A cross-sectional schematic diagram of a heat sink installed on a housing according to an embodiment of the present application;

[0038] Figure 4 This is a schematic diagram of the main structure of a driving plate and a circuit breaker installed on a first support member according to an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the main structure of an embodiment of the present application in which the main control board is installed on the first support member and the second support member;

[0040] Figure 6 This is a schematic diagram of a three-dimensional structure in which a main control board is installed on a front side wall according to an embodiment of the present application;

[0041] Figure 7 This is a schematic diagram of the main structure of an embodiment of the present application in which the main control board is installed on the front side wall;

[0042] Figure 8This is a schematic diagram of the main structure of a radiator according to an embodiment of the present application;

[0043] Fig. 9 It is a cross-sectional schematic diagram of two heat dissipation units installed on a housing according to an embodiment of the present application;

[0044] Fig.10 This is a schematic diagram of the three-dimensional structure of an electric control box according to an embodiment of the present application installed on a support member of a computer room air conditioner.

[0045] Reference numerals:

[0046] 10. Electric control box; 10a. Accommodation cavity; 10b. Installation area;

[0047] 11. Electric control components; 111. Drive board; 112. Drive heat sink; 113. Circuit breaker; 114. Main control board; 115. Reactor;

[0048] 12. radiator; 121. heat dissipation body; 122. first heat dissipation fin; 123. heat dissipation unit; 123a. second heat dissipation body; 123b. second heat dissipation fin; 124. vent;

[0049] 13. housing; 131. top wall; 132. bottom wall; 133. peripheral side wall; 1331. front side wall; 1332. rear side wall; 1333. left side wall; 1334. right side wall; 134. first opening; 135. mounting flange; 135a. sealing strip; 1351. first step surface; 1352. second step surface;

[0050] 14. Cooling fan; 15. First support frame; 16. Second support frame;

[0051] 17. Lock; 171. First part; 172. Second part;

[0052] 18. fixing part; 181. side flange; 182. top flange;

[0053] 20. Wire-passing sealing parts;

[0054] 21. Computer room air conditioner; 210. Support member; 220b. Heat exchange opening; 220. Fan; 230. Heat exchange assembly;

[0055] H, vertical direction; T, horizontal direction. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0057] The inventors have found that when the electric control box is to be cooled, a heat dissipation port is usually provided on the electric control box, and airflow is exchanged with the outside through the heat dissipation port to cool the electric control box. In order to improve the heat dissipation efficiency, the volume of the electric control box is often designed to be larger, or multiple heat dissipation ports or larger heat dissipation ports are provided on the outer shell of the electric control box. The existence of the heat dissipation port can easily cause external moisture and dust and other impurities to enter the electric control box through the heat dissipation port, thereby damaging the electric control components and affecting the service life and working stability of the electric control box. Therefore, when the electric control box is set, it is difficult to take into account the heat dissipation and waterproof and other sealing requirements of the electric control box. In order to solve the above technical problems, the present application proposes an electric control box and a computer room air conditioner.

[0058] See also Figure 1 and Figure 2 , is a schematic structural diagram of an electric control box 10 according to an embodiment of the present application. The electric control box 10 includes a plurality of electric control components 11, a heat sink 12 and a housing 13.

[0059] like Figure 3 As shown, the housing 13 has a receiving cavity 10a, and a plurality of electronic control devices 11 are received in the receiving cavity 10a. Specifically, the housing 13 includes a top wall 131, a bottom wall 132, and a peripheral side wall 133 connected between the top wall 131 and the bottom wall 132, and the top wall 131, the bottom wall 132 and the peripheral side wall 133 define the receiving cavity 10a.

[0060] The housing 13 has a first opening 134 communicating with the accommodating chamber 10a, and the radiator 12 is disposed at the first opening 134. The radiator 12 is used to dissipate heat for the electric control device 11. The first opening 134 communicates the external space with the accommodating chamber 10a of the electric control box 10, and airflow can enter and exit the accommodating chamber 10a from the first opening 134. The radiator 12 is disposed at the first opening 134, and the airflow can contact the radiator 12 when passing through the first opening 134. The airflow can exchange heat with the radiator 12 to improve the heat dissipation efficiency. For example, the hot airflow in the accommodating chamber 10a contacts the radiator 12, and the hot airflow conducts the heat to the radiator 12, and the heat is dissipated to the external space of the electric control box 10 through the radiator 12.

[0061] In the embodiment of the present application, the accommodating cavity 10a includes a plurality of mounting areas 10b, a plurality of electric control devices 11 are disposed in the plurality of mounting areas 10b, and two adjacent mounting areas 10b are disposed at intervals, and the heat of the electric control devices 11 is dissipated to the area between the two adjacent mounting areas 10b and dissipated out of the electric control box 10 from the heat sink 12. For example, the first opening 134 is communicated with one of the mounting areas 10b, or the first opening 134 is communicated with the area between the two adjacent mounting areas 10b, so that the airflow in the accommodating cavity 10a can smoothly reach the first opening 134.

[0062] The embodiment of the present application arranges the multiple electric control devices 11 of the electric control box 10 in multiple installation areas 10b in an orderly manner, so that the airflow can flow smoothly in the area between two adjacent installation areas 10b, and enter and exit the accommodating cavity 10a from the heat sink 12 of the first opening 134. The heat of the electric control device 11 is dissipated to the area between the two adjacent installation areas 10b, and can be driven by the airflow to dissipate from the electric control box 10 from the heat sink 12. The heat dissipation path is smooth, which can effectively improve the heat dissipation efficiency of the electric control box. In addition, the electric control box 10 of the present application only needs to open a first opening 134 in the shell 13 to meet the heat dissipation requirements, and there is no need to open openings in other positions of the shell 13. Other areas of the shell 13 can be sealed to prevent foreign substances from entering and exiting the accommodating cavity 10a of the shell. On the basis that only one first opening 134 is opened in the shell 13, it is also convenient for the electric control box 10 to cooperate with other structures of the computer room air conditioner 21 to perform waterproof and dustproof treatment on the first opening 134. Therefore, the electric control box 10 of the present application can effectively take into account the heat dissipation and waterproof and dustproof requirements.

[0063] The electric control box 10 includes a cooling fan 14, which is disposed in the accommodating chamber 10a and mounted on the housing 13. When the cooling fan 14 is in operation, it can stir the gas flow in the accommodating chamber 10a to generate airflow. The electric control device 11 includes a heating element, which generates heat when working, and the heat generated by the heating element can be taken away by the airflow flowing in the accommodating chamber 10a. When the electric control box 100 is installed in the machine room air conditioner 21, in the vertical direction H, the cooling fan 14 is located below the heating element and the radiator 12. The cooling fan 14 is located on the same side of the heating element and the radiator 12 to stir the gas in the accommodating chamber 10a, so that the airflow can pass through the heating element and the radiator 12 in the same direction, thereby being able to dissipate heat from the heating element more efficiently.

[0064] Optionally, the heat dissipation fan 14 may be located in one of the installation areas 10b. When the heat dissipation fan 14 is running, it first stirs the airflow in the installation area 10b where it is located, and then drives the gas flow in other areas of the accommodating chamber 10a; or, the heat dissipation fan 14 may be located in the area between two adjacent installation areas 10b. The heat dissipation fan 14 first stirs the gas flow in the area between the two adjacent installation areas 10b, and then drives the gas flow in other areas of the accommodating chamber 10a. The embodiment of the present application does not limit whether the heat dissipation fan 14 is located in the installation area 10b and the state of the heat dissipation fan 14 in the installation area 10b, and the specific selection can be made according to actual needs.

[0065] Among them, the air outlet direction of the cooling fan 14 is toward the heating element and the radiator 12. When the cooling fan 14 is running, in the vertical direction H, the cooling fan 14 stirs the gas in the accommodating chamber 10a to form an outlet airflow flowing from the bottom to the top. The outlet airflow flows from the cooling fan 14 to pass through the heating element and the radiator 12 and flows out of the electrical control box 100. The inlet airflow in the external space enters the accommodating chamber 10a from the radiator 12 and flows to the heating element, so as to efficiently dissipate the heat of the heating element.

[0066] In the vertical direction H, the heating element may be located above the radiator 12, for example, the radiator 12 is located between the cooling fan 14 and the heating element, so that the radiator 12 disposed at the first opening 134 is adjacent to the cooling fan 14 for more efficient heat exchange. Alternatively, in the vertical direction H, the heating element is located below the radiator 12, for example, Figure 4 As shown, the radiator 12 is located in the upper area of ​​the electric control box 10, and the radiator 12 is located on the side of the heating element away from the cooling fan 14, so that the air flow can flow from the cooling fan 14 through the heating element and the radiator 12 in sequence to flow out of the electric control box 100, thereby efficiently dissipating the heat of the heating element.

[0067] Preferably, in the vertical direction H, the radiator 12 is located above all the heating elements, so that the gas in the accommodating chamber 10a flows along the direction of hot gas rising and cold gas sinking, further improving the smoothness of the gas flow in the accommodating chamber 10a and reducing the flow resistance of the gas in the accommodating chamber 10a, thereby accelerating the heat exchange between the inside and outside of the electrical control box 10, thereby effectively improving the heat dissipation efficiency.

[0068] In the embodiment of the present application, the electric control device 11 includes a drive board 111, a main control board 114, a reactor 115, a drive heat sink 112 and an air switch 113, wherein the heating element includes the drive board 111, the main control board 114 and the reactor 115, and the heating elements can be in the same installation area 10b, or the heating elements can be arranged in different installation areas 10b. The above is only an exemplary introduction, and the electric control device 11 of the electric control box 10 of the embodiment of the present application includes but is not limited to the electric control device 11 as described above, and the electric control device 11 that can be accommodated in the accommodating cavity 10a of the housing 13 is suitable for the arrangement method of the electric control device 11 of the present application.

[0069] Optionally, the accommodating chamber 10a includes two installation areas 10b, and the two installation areas 10b are arranged at intervals in a direction perpendicular to the top wall 131 toward the bottom wall 132. When the electric control box 10 is installed in the machine room air conditioner, the direction from the top wall 131 to the bottom wall 132 is the vertical direction H, and the installation areas 10b are arranged at intervals along the horizontal direction T, so that the airflow in the accommodating chamber 10a can flow more smoothly in the direction of hot gas floating up and cold gas sinking, further reducing the flow resistance.

[0070] See also Figure 4 and Figure 5 The electric control box 10 includes a first support frame 15, which is mounted on the housing 13, wherein at least part of the electric control device 11 is disposed on the first support frame 15 so as to be located in the mounting area 10b. For example, the electric control device 11 may be disposed on the surface of the first support frame 15; or the first support frame 15 has a preset positioning area such as a mounting groove or a mounting hole, and the electric control device 11 may be accommodated in the preset positioning area of ​​the first support frame 15.

[0071] Optionally, the first support frame 15 is provided in one of the installation areas 10b, and the electric control box 10 further includes a second support frame 16 provided in another installation area 10b, and the second support frame 16 is installed on the housing. A part of the electric control components 11 is provided on the first support frame 15, and another part of the electric control components 11 is provided on the second support frame 16. The first support frame 15 and the second support frame 16 provide support for the corresponding electric control components 11, so that each electric control component 11 can be stably installed in the corresponding installation area 10b.

[0072] The peripheral side wall 133 includes a front side wall 1331 and a rear side wall 1332 which are arranged opposite to each other, and the front side wall 1331 can be opened and closed. The peripheral side wall 133 also includes a left side wall 1333 and a right side wall 1334 which are arranged opposite to each other, and the direction from the left side wall 1333 to the right side wall 1334 is perpendicular to the direction from the front side wall 1331 to the rear side wall 1332. In the direction from the front side wall 1331 to the rear side wall 1332, two installation areas 10b are arranged at intervals, and the opposite ends of the first support frame 15 are respectively installed on the left side wall 1333 and the right side wall 1334, and the opposite ends of the second support frame 16 are respectively installed on the left side wall 1333 and the right side wall 1334. In this installation condition, all the electric control components 11 are fixed to the left side wall 1333 and the right side wall 1334 for stable installation.

[0073] When the two installation areas 10b are spaced apart along the direction from the front side wall 1331 to the rear side wall 1332, by opening the front side wall 1331, the electronic control device 11 in the installation area 10b adjacent to the front side wall 1331 can be installed and repaired. Also, after the electronic control device 11 in the installation area 10b adjacent to the front side wall 1331 is removed, the electronic control device 11 in the installation area 10b away from the front side wall 1331 can be installed and repaired, thereby facilitating the installation and maintenance of the electronic control device 11 while meeting the heat dissipation requirements.

[0074] Optionally, in the direction from the front side wall 1331 to the rear side wall 1332, the distance from the second support frame 16 to the front side wall 1331 is smaller than the distance from the first support frame 15 to the front side wall 1331. The second support frame 16 has a hollow area, and the electric control device 11 is detachably mounted on the second support frame 16 corresponding to the hollow area. After the electric control device 11 mounted on the hollow area of ​​the second support frame 16 is removed, the electric control device 11 provided on the first support frame 15 and blocked by the second support frame 16 and the electric control device 11 can be exposed, which is convenient for disassembly and maintenance.

[0075] Optionally, the driving heat sink 112 is provided on the driving board 111, and the driving heat sink 112 is used to dissipate the heat generated by the driving board 111 to the accommodating cavity 10b of the electric control box 10, the driving board 111 and the reactor 115 are provided on the first support frame 15, and the main control board 114 and the circuit breaker 113 are provided on the second support frame 16. Specifically, as shown in FIG. Figure 4 and Figure 5 The cooling fan 14, the driving board 111, the reactor 115 and the radiator 12 are arranged in sequence from bottom to top along the vertical direction H. The driving board 111 and the reactor 115 are installed on the first support frame 15. The cooling fan 14 is installed on the peripheral side wall 133 and is spaced from the bottom wall 132. The main control board 114 and the air switch 113 are installed on the second support frame 16. The main control board 114 is located above the air switch 113 along the vertical direction H. The air switch 113 and the cooling fan 14 can be in the same plane perpendicular to the vertical direction H. The cooling fan 14 blows the heat generated by the driving board 111, the reactor 115 and the main control board 114 from bottom to top to the radiator 12 along the vertical direction, and transfers the heat in the electric control box 10 to the external space of the electric control box 10 through the radiator 12. Further, the driving plate 111 and the reactor 115 may be installed on the surface of the first support frame 15 away from the rear side wall 1332 , and the driving plate 111 , the reactor 115 and the cooling fan 14 may be located in the same plane parallel to the vertical direction.

[0076] See also Figure 6 to Figure 7 Optionally, a part of the electric control components 11 of the electric control box 10 is located in one of the installation areas 10b and installed on the first support frame 15, and another part of the electric control components 11 is located in another installation area 10b and installed on the front side wall 1331. The two ends of the first support frame 15 are respectively installed on the left side wall 1333 and the right side wall 1334, and the electric control components 11 installed on the front side wall 1331 can move with the front side wall 1331. When the front side wall 1331 is in an open state, the electric control components 11 installed on the first support frame 15 and the electric control components 11 installed on the front side wall 1331 can be exposed, so that the electric control components 11 can be installed and repaired more conveniently.

[0077] Optionally, the main control board 114 is mounted on the front side wall 1331, the driving heat sink 112 is provided on the driving board 111, and the driving board 111, the reactor 115 and the circuit breaker 113 are mounted on the first support frame 15. Figure 4 As shown, the cooling fan 14, the driving plate 111, the reactor 115 and the radiator 12 are arranged in sequence from bottom to top along the vertical direction H, so that the radiator 12 is placed in the uppermost area, and the air switch 113 can be arranged above the driving plate 111 along the vertical direction H and installed on the first support frame 15, and the air switch 113 and the reactor 115 can be arranged side by side in the horizontal direction; or, as shown Figure 7 As shown, the reactor 115, the circuit breaker 113, the cooling fan 14, the radiator 12, and the driving plate 111 are arranged in sequence from bottom to top along the vertical direction H, the cooling fan 14 is arranged adjacent to the radiator 12, and all of the above-mentioned electronic control components 11 are installed on the first support frame 15, or, part of the above-mentioned electronic control components 11 are installed on the first support frame 15, and the other part is installed on the surrounding side wall 133, or, in some other embodiments, all of the above-mentioned electronic control components 11 are installed on the surrounding side wall 133.

[0078] The first support frame 15 is spaced apart from the front side wall 1331 and the rear side wall 1332, respectively, so that there are gaps between the first support frame 15 and the front side wall 1331 and the rear side wall 1332, respectively, to facilitate airflow. The electronic control device 11 can be installed on the surface of the first support frame 15 facing the front side wall 1331, and the airflow can flow through the side of the first support frame 15 away from the front side wall 1331 to enter and exit the first opening 134, so that the airflow flows smoothly and reduces the flow resistance.

[0079] In the embodiment of the present application, the first opening 134 may be provided at any one of the top wall 131, the bottom wall 132, the rear side wall 1332, the left side wall 1333, and the right side wall 1334. Preferably, the first opening 134 is provided at the rear side wall 1332, and the first opening 134 penetrates the rear side wall 1332 from the front side wall 1331 toward the rear side wall 1332, so that the radiator 12 can be installed at the first opening 134, and the electric control box 100 can be installed on other structural parts of the computer room air conditioner 21.

[0080] like Figure 8 As shown, the radiator 12 has a plurality of vents 124 . When the radiator 12 is installed at the first opening 134 , the vents 124 are connected to the accommodating cavity 10 a , and the airflow passing through the first opening 134 enters and exits the accommodating cavity 10 a from the vents 124 .

[0081] This combination Figure 3 and Fig. 9In the embodiment of the present application, a portion of the radiator 12 extends into the accommodating cavity 10a, and another portion extends out of the shell 13 through the first opening 134. The portion of the radiator 12 extending into the accommodating cavity 10a can contact the gas in the accommodating cavity 10a for heat exchange, and the portion of the radiator 12 extending out of the shell 13 can contact the gas in the external space for heat exchange. Through the conduction of the radiator 12, the heat of the gas in the accommodating cavity 10a can be efficiently conducted to the external space of the shell 13, thereby improving the heat dissipation efficiency.

[0082] Please refer to Figure 3 Optionally, the radiator 12 includes an integrally arranged first heat dissipation body 121 and a plurality of first heat dissipation fins 122. The first heat dissipation body 121 is mounted on the housing 13, and the first heat dissipation fins 122 are provided with a first opening 134. For example, the first heat dissipation body 121 is mounted on the outer wall surface of the rear side wall 1332, and each first heat dissipation fin 122 is provided with a first opening 134 from the outer space of the housing 13 and extends into the accommodating cavity 10a. A vent 124 is provided between two adjacent first heat dissipation fins 122, and every two first heat dissipation fins 122 are arranged in parallel so that the airflow passing through the vent 124 can smoothly pass between the two adjacent first heat dissipation fins 122 to reduce the flow resistance. The radiator 12 includes a plurality of first heat dissipation fins 122, so that the radiator 12 has a larger specific surface area, which helps to improve the heat exchange efficiency, and thus improve the heat dissipation efficiency of the electric control box 100.

[0083] See also Fig. 9 Optionally, the radiator 12 includes two heat dissipation units 123 arranged corresponding to the first opening 134, wherein one heat dissipation unit 123 is accommodated in the accommodating cavity 10a, and the other heat dissipation unit 123 is installed on the outer wall surface of the housing 13. Each heat dissipation unit 123 includes a second heat dissipation body 123a installed on the housing 13, and a plurality of second heat dissipation fins 123b integrally arranged with the second heat dissipation body 123a, and a vent 124 is provided between two adjacent second heat dissipation fins 123b.

[0084] When the two heat dissipation units 123 are relatively installed on opposite sides of the first opening 134, the vents 124 of the two heat dissipation units 123 are connected to each other, so that the external air can enter and exit the housing 13 through the vents 124. By providing the radiator 12 with two separate heat dissipation units 123, the processing and molding of the radiator 12 is facilitated. For example, a heat dissipation structure in which a plurality of second heat dissipation bodies 123a are integrally molded on the same side of the second heat dissipation body 123a can be used as the heat dissipation unit 123 of the embodiment of the present application, and there is no need to separately open the mold of the heat dissipation unit 123.

[0085] One side of the front side wall 1331 is hinged to the left side wall 1333, and the electric control box 10 further includes a lock 17, and the other side of the front side wall 1331 is connected to the right side wall 1334 through the lock 17, so that the front side wall 1331 can be opened and closed. The lock 17 includes a first part 171 and a second part 172, the first part 171 is arranged on the front side wall 1331 of the housing 13, and the second part 172 is arranged on the right side wall 1334, and the first part 171 and the second part 172 can be connected with each other to fix the position of the front side wall 1331, so that the front side wall 1331 is in a closed state. When the front side wall 1331 is in an open state, the opening angle range of the front side wall 1331 is greater than 0° and less than or equal to 270°.

[0086] The housing 13 includes a mounting flange 135, which defines a second opening for allowing the electric control device 11 to enter and exit the accommodating cavity 10a. The front side wall 1331 is openably and closably arranged on the mounting flange 135. A sealing strip 135a is provided on the mounting flange 135. When the front side wall 1331 is in a closed state, the front side wall 1331 and the sealing strip 135a are interference fit to form a sealing structure at the second opening, which can form a closed space in the accommodating cavity 10a of the electric control box 10 to achieve a waterproof and dustproof effect.

[0087] Optionally, the mounting flange 135 is a step structure, and the mounting flange 135 is a step structure, and includes a first step surface 1351 and a second step surface 1352. The first step surface 1351 is perpendicular to the direction from the front side wall 1331 to the rear side wall 1332, and the second step surface 1352 is parallel to the direction from the front side wall 1331 to the rear side wall 1332. The sealing strip 135a is arranged at the step structure and is in contact with the first step surface 1351 and the second step surface 1352 respectively. A limiting groove is provided on the surface of the front side wall 1331 facing the rear side wall 1332. When the front side wall 1331 is in a closed state, the second step surface 1352 extends into the limiting groove, and the wall surface of the limiting groove of the front side wall 1331 abuts against the sealing strip 135a to form a sealing structure, and the front side wall 1331 is also in contact with the first step surface 1351 to improve the installation stability of the front side wall 1331 in the closed state.

[0088] The electric control box 10 further includes a wire passing sealing component 20, which is disposed in the housing 13 of the electric control box. Specifically, a wire passing hole is provided in the bottom wall 132 of the housing 13, and the wire passing sealing component 20 is installed in the wire passing hole. The cables connected to each electric control device 11 pass through the wire sealing component 20 and are led to the external space of the housing 13. The wire passing sealing component 20 is used to seal the gap between two adjacent cables to prevent external substances such as moisture and dust from entering the accommodating cavity 10a from the wire passing hole.

[0089] The electric control box 10 also includes a fixing component 18, which includes a side flange 181 and a top flange 182. The side flange 181 is arranged on at least one of the left side wall 1333 and the right side wall 1334 of the electric control box 10, and the top flange 18 is arranged on at least one of the top wall 131 and the bottom wall 132. The electric control box 10 is detachably mounted with the structural components of the computer room air conditioner 21 through the side flange 181 and the top flange 182, so as to facilitate the installation and fixation of the electric control box 10.

[0090] like Fig.10 As shown, the embodiment of the present application also provides a computer room air conditioner 21, including a support member 210 and the above-mentioned electric control box 10, the electric control box 10 is installed on the support member 210, for example, the fixing component 18 of the electric control box 10 includes a side flange 181 and a top flange 182, the side flange 181 is arranged on the left side wall 1333 and the right side wall 1334 of the electric control box 10, the top flange 18 is arranged on the top wall 131 and the bottom wall 132, and the electric control box 10 is detachably installed on the support member 210 through the side flange 181 and the top flange 182.

[0091] The support member 210 has a heat exchange air duct and a heat exchange opening 210b connected to the heat exchange air duct. The electric control box 10 is arranged at the heat exchange opening 210b, and the part of the electric control box 10 having the first opening 134 extends into the heat exchange air duct. The part of the radiator 12 extending out of the first opening 134 contacts the gas in the heat exchange air duct. When the gas in the heat exchange air duct flows, it can exchange heat with the radiator 12, and at the same time, suck the gas in the accommodating cavity 10a, or blow gas into the accommodating cavity 10a, so as to accelerate the flow of gas in the accommodating cavity 10a and improve the heat dissipation efficiency of the electric control box 10.

[0092] Optionally, by increasing the depth of the electric control box 10 extending into the heat exchange air duct, the contact area between the housing 12 of the electric control box 10 and the gas in the heat exchange air duct can be increased, so that the housing 12 can also be used as a heat exchange medium, further improving the heat dissipation efficiency of the electric control box 10. For example, the fixing component 18 can be arranged adjacent to the front side wall 1331, and when the electric control box 10 extends into the heat exchange air duct and is installed on the support member 210, the rear side wall 1332, the left side wall 1333, the right side wall 1334, the top wall 131 and the bottom wall 132 can all extend into the heat exchange air duct for heat exchange.

[0093] The computer room air conditioner 21 further includes a fan 220 , which is arranged corresponding to the heat exchange air duct. When the fan 220 is running, it blows gas or draws gas to the heat exchange air duct, thereby dissipating heat from the electric control box 10 .

[0094] Optionally, the heat exchange air duct is directly defined by the support member 210; or, the computer room air conditioner 21 also includes a heat exchange component 230, and the support member 210 and the heat exchange component 230 are spliced ​​to form a heat exchange air duct, and the heat exchange component 230 includes a plate heat exchanger, a condenser, etc.

[0095] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An electric control box, characterized in that: include: Multiple electronic control devices; A radiator, used for dissipating heat from the electronic control device; and The housing has a receiving cavity and a first opening communicating with the receiving cavity, wherein the heat sink is disposed at the first opening; Wherein, the accommodating cavity includes multiple installation areas, multiple electronic control components are arranged in the multiple installation areas, and two adjacent installation areas are spaced apart. The heat of the electronic control components is dissipated to the area between two adjacent installation areas and dissipated out of the electronic control box from the radiator.

2. The electric control box according to claim 1, characterized in that: The electric control device includes a heating element; the electric control box also includes: A heat dissipation fan is arranged in the accommodating cavity and installed on the housing. In the vertical direction, the heat dissipation fan is located below the heating element and the radiator.

3. The electric control box according to claim 2, characterized in that: In the vertical direction, the heating element is located below the radiator; the heating element includes a driving board, a main control board and a reactor.

4. The electric control box according to claim 1, characterized in that: The housing comprises a top wall, a bottom wall, and a peripheral side wall connected between the top wall and the bottom wall, wherein the top wall, the bottom wall and the peripheral side wall define a receiving cavity; The accommodating cavity includes two installation areas, and the two installation areas are spaced apart in a direction perpendicular to the top wall toward the bottom wall.

5. The electric control box according to claim 4, characterized in that: The peripheral side wall comprises a front side wall and a rear side wall which are arranged opposite to each other, and the front side wall can be opened and closed; in the direction from the front side wall to the rear side wall, the two installation areas are arranged at intervals; The electric control box comprises a first support frame, which is mounted on the housing, wherein at least part of the electric control components are arranged on the first support frame to be in the mounting area.

6. The electric control box according to claim 5, characterized in that: The first support frame is arranged in one of the installation areas, and the electric control box further comprises a second support frame arranged in another installation area, and the second support frame is arranged in the housing; A part of the electric control components are arranged on the first support frame, and another part of the electric control components are arranged on the second support frame.

7. The electric control box according to claim 6, characterized in that: In the direction from the front side wall to the rear side wall, the distance from the second support frame to the front side wall is smaller than the distance from the first support frame to the front side wall; The second support frame has a hollow area, and the electric control device is detachably mounted on the second support frame corresponding to the hollow area.

8. The electric control box according to claim 6 or 7, characterized in that: The electric control device includes a drive board, a drive heat sink, a reactor, a main control board and a circuit breaker; The driving heat sink is arranged on the driving board, the driving board and the reactor are arranged on the first supporting frame, and the main control board and the air chamber are arranged on the second supporting frame.

9. The electric control box according to claim 5, characterized in that: A portion of the electronic control components are located in one of the installation areas and installed on the first support frame, and another portion of the electronic control components are located in another installation area and installed on the front side wall.

10. The electric control box according to claim 9, characterized in that: The electric control device includes a drive board, a drive heat sink, a reactor, a main control board and a circuit breaker; The main control board is installed on the front side wall; the driving heat sink is arranged on the driving board, and the driving board, the reactor and the circuit breaker are installed on the first supporting frame.

11. The electric control box according to claim 5, characterized in that: The first supporting frame is spaced apart from the front side wall and the rear side wall respectively.

12. The electric control box according to claim 5, characterized in that: The rear side wall has the first opening in a direction from the front side wall toward the rear side wall.

13. The electric control box according to claim 1, characterized in that: The radiator has a plurality of vents connected to the accommodating cavity; a portion of the radiator extends into the accommodating cavity, and another portion extends out of the housing through the first opening.

14. The electric control box according to claim 13, characterized in that: The radiator comprises a first radiating body and a plurality of first radiating fins which are integrally arranged, the first radiating body is mounted on the housing, the first radiating fins are provided with the first opening, and the vent is provided between two adjacent first radiating fins; or, The radiator includes two heat dissipation units arranged corresponding to the first opening, one of the heat dissipation units is accommodated in the accommodating cavity, and the other heat dissipation unit is installed on the outer wall of the shell; each of the heat dissipation units includes a second heat dissipation body installed on the shell, and a plurality of second heat dissipation fins integrally arranged with the second heat dissipation body, and the vent is provided between two adjacent second heat dissipation fins.

15. The electric control box according to claim 1, characterized in that: The housing includes a mounting flange and a front side wall, the mounting flange defines a second opening for the electronic control device to enter and exit the accommodating cavity, the front side wall can be opened and closed on the mounting flange, and when the front side wall is installed in a closed state of the mounting flange, the front side wall is sealed and connected to the mounting flange.

16. A computer room air conditioner, characterized in that: include: Supports; and The electric control box according to any one of claims 1 to 15, wherein the housing of the electric control box is mounted on the support member.

17. The computer room air conditioner according to claim 16, characterized in that: The support member has a heat exchange air duct and a heat exchange opening communicated with the heat exchange air duct. The electric control box is arranged at the heat exchange opening, and a portion of the electric control box having the first opening extends into the heat exchange air duct.

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