Electric control cabinet heat dissipation mechanism

Abstract

This application discloses a heat dissipation mechanism for an electrical control cabinet, including a heat dissipation channel and a bottom cooling fan. The heat dissipation channel is installed inside the cabinet shell and has a mounting cavity, a top opening, and a bottom opening. The mounting cavity is used to house electrical equipment with high heat dissipation requirements. An upper cooling fan is installed near the top opening, and a lower cooling fan is installed near the bottom opening within the heat dissipation channel. The upper and lower cooling fans work together to achieve heat exchange between the heat dissipation channel and the outside environment. The top and bottom openings are respectively attached to the inner side of the rear side wall of the electrical control cabinet, and the rear side wall has corresponding filter windows. The bottom cooling fan is installed on the bottom wall of the electrical control cabinet to dissipate heat from electrical equipment with lower heat dissipation requirements within the shell. The heat dissipation mechanism for the electrical control cabinet provided by this application can provide differentiated heat dissipation management for electrical equipment with different heat dissipation requirements, which can meet heat dissipation needs, reduce heat dissipation costs, and save resources.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation equipment technology, and in particular to the heat dissipation mechanism of electrical control cabinet. Background Technology

[0002] An electrical control cabinet is a special enclosure for installing electrical equipment, instruments, and control devices. Various electrical equipment and instruments generate a lot of heat during continuous operation, so electrical control cabinets have high requirements for heat dissipation.

[0003] In existing technologies, electrical control cabinets typically have one or more cooling fans installed on the side walls of the enclosure to dissipate heat from inside the cabinet to the outside. Simultaneously, air inlets are installed on the side walls without cooling fans to facilitate heat exchange between the internal hot air and the ambient air, thus achieving cooling of the cabinet's interior. However, the cooling requirements of various electrical devices and instruments inside the control cabinet may differ. Therefore, conventional cooling mechanisms for electrical control cabinets can only provide broad-based cooling. Meeting the cooling needs of all electrical components often requires a significant amount of cooling work, resulting in high cooling costs and resource waste. Utility Model Content

[0004] This application provides a heat dissipation mechanism for an electrical control cabinet, which can perform differentiated heat dissipation management for electrical equipment with different heat dissipation requirements, so that the electrical control cabinet can not only meet the heat dissipation requirements, but also reduce heat dissipation costs and save resources.

[0005] This application provides a heat dissipation mechanism for an electrical control cabinet, wherein the electrical control cabinet includes a cabinet shell with a cavity, the cabinet shell has a rear side wall and a bottom wall, the heat dissipation mechanism includes a heat dissipation channel and a bottom cooling fan, the heat dissipation channel is installed in the cavity and has a mounting cavity, a top opening above the mounting cavity and a bottom opening below the mounting cavity, wherein the mounting cavity is used to place electrical equipment with high heat dissipation requirements, an upper cooling fan is installed in the heat dissipation channel near the top opening and a lower cooling fan is installed near the bottom opening, the upper cooling fan and the lower cooling fan cooperate to realize heat exchange between the heat dissipation channel and the outside, wherein the top opening and the bottom opening are respectively abutted against the inner side of the rear side wall, and the rear side wall is provided with filter windows directly opposite the top opening and the bottom opening respectively; The bottom cooling fan is installed on the bottom wall to dissipate heat from electrical devices with low heat dissipation requirements inside the housing.

[0006] In one possible implementation, the heat dissipation channel is located near the upper part of the rear sidewall, and an auxiliary heat dissipation window is installed on the lower part of the rear sidewall.

[0007] In one possible implementation, the heat dissipation channel includes a main unit housing, the top and bottom of which are fitted with trapezoidal housings on the side near the rear sidewall. The bottom of the trapezoidal housing is connected to the main unit housing and protrudes horizontally from the main unit housing. The electrical control cabinet housing is fitted with support ribs on the inner side of the rear sidewall for connecting the portion of the trapezoidal housing protruding from the main unit housing.

[0008] In one possible implementation, the upper cooling fan and the lower cooling fan are located at the top and bottom of the main unit housing, respectively, and are directly opposite the trapezoidal housing located on the upper and lower sides of the main unit housing.

[0009] In one possible implementation, the bottom wall has a bottom filter window located directly opposite the bottom cooling fan.

[0010] In one possible implementation, the lower cooling fan is an intake fan, and the upper cooling fan is an exhaust fan.

[0011] Beneficial effects: Compared with the prior art, the heat dissipation mechanism of the electrical control cabinet provided in this application sets up a heat dissipation channel and a bottom cooling fan in the shell cavity of the electrical control cabinet. The mounting cavity in the heat dissipation channel is used to place electrical equipment with high heat dissipation requirements. The air in the heat dissipation channel is quickly exchanged with the outside air through the cooperation of the upper and lower cooling fans, so as to achieve rapid heat exchange and better heat dissipation effect. The bottom cooling fan is used to dissipate the heat of electrical equipment with low heat dissipation requirements in the shell cavity. In this way, the heat dissipation of the electrical control cabinet can be differentiated, which can not only meet the heat dissipation requirements, but also reduce the heat dissipation cost and save resources.

[0012] These and other objects, features and advantages of this utility model will be fully realized through the following detailed description. Attached Figure Description

[0013] Figure 1 A schematic diagram of the heat dissipation mechanism of the electrical control cabinet of this application is shown.

[0014] Figure 2 A partial structural schematic diagram of the heat dissipation mechanism of the electrical control cabinet of this application is shown.

[0015] Figure 3 A partial front view of the heat dissipation mechanism of the electrical control cabinet of this application is shown.

[0016] Figure 4 A schematic diagram of the heat dissipation channel in this application is shown. Detailed Implementation

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0018] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] refer to Figures 1 to 4 This application provides a heat dissipation mechanism for an electrical control cabinet, wherein the electrical control cabinet includes an electrical control cabinet housing 10 having a cavity 101, and the electrical control cabinet housing 10 is provided with a rear side wall 11 and a bottom wall 12. The rear side wall 11, bottom wall 12, top wall 13, two side walls 14 and front door are assembled into a complete electrical control cabinet housing 10.

[0021] The heat dissipation mechanism of the electrical control cabinet includes a heat dissipation channel 20 and a bottom cooling fan 30. The heat dissipation channel 20 is installed inside the housing cavity 101 and has a mounting cavity, a top opening 201 above the mounting cavity, and a bottom opening 202 below the mounting cavity. The mounting cavity is used to house electrical equipment with high heat dissipation requirements, such as the main unit of the electrical control cabinet. An upper cooling fan is installed inside the heat dissipation channel 20 near the top opening 201, and a lower cooling fan is installed inside the heat dissipation channel 20 near the bottom opening 202. The upper and lower cooling fans cooperate to achieve heat exchange between the heat dissipation channel 20 and the outside environment. The top opening 201 and the bottom opening 202 are respectively abutted against the inner side of the rear side wall 11. The rear side wall 11 is provided with filter windows 111 opposite the top opening 201 and the bottom opening 202 to filter out impurities in the air during the heat exchange process, preventing impurities from entering the housing cavity 101 of the electrical control cabinet 10 and affecting the operation of the electrical equipment.

[0022] The bottom cooling fan 30 is installed on the bottom wall 12 to dissipate heat from electrical devices with low heat dissipation requirements inside the housing cavity 101. These electrical devices may be resistors, capacitors, etc.

[0023] Therefore, the heat dissipation mechanism of the electrical control cabinet provided in this application can achieve differentiated heat dissipation management. On the one hand, the heat dissipation channel 20, the upper cooling fan and the lower cooling fan work together to quickly dissipate and cool down electrical equipment with high heat dissipation requirements in the mounting cavity, resulting in higher heat dissipation efficiency. On the other hand, the bottom cooling fan 30 provides gentle heat dissipation and cooling to electrical equipment with lower heat dissipation requirements in the housing cavity 101, resulting in relatively lower heat dissipation efficiency. Thus, the heat dissipation mechanism of the electrical control cabinet can meet the heat dissipation requirements while reducing heat dissipation costs (such as the equipment cost of the cooling fan, the power cost required by the cooling fan, etc.), saving resources.

[0024] In one embodiment, the heat dissipation channel 20 is located near the upper part of the rear sidewall 11, while an auxiliary heat dissipation window 112 is installed on the lower part of the rear sidewall 11. The auxiliary heat dissipation window 112 can simultaneously provide auxiliary heat dissipation for the heat dissipation channel 20 and for electrical equipment with lower heat dissipation requirements within the housing cavity 101, thereby further improving the heat dissipation effect.

[0025] In one embodiment, the heat dissipation channel 20 includes a main unit housing 21. Trapezoidal housings 22 are mounted on the top and bottom of the main unit housing 21 near the rear sidewall, making the entire heat dissipation channel 20 a split, detachable structure to facilitate the removal, installation, and maintenance of the internal upper and lower cooling fans. The lower base of the trapezoidal housing 22 is connected to the main unit housing 21 and protrudes horizontally from the main unit housing 21. Meanwhile, the electrical control cabinet housing 10 has supporting ribs 15 mounted on the inner side of the rear sidewall 11 to connect the portion of the trapezoidal housing 22 protruding from the main unit housing 21. Figure 4 The main unit housing 21 is provided with a lower mounting hole 203 for installing the lower cooling fan, and the trapezoidal housing 22 is provided with bolt holes 204 for connecting the support rib 15.

[0026] In one embodiment, the upper cooling fan and the lower cooling fan are located at the top and bottom of the main unit housing 21, respectively, and are directly opposite the trapezoidal housing 22 located on the upper and lower sides of the main unit housing 21, thereby providing a relatively large and independent space for the installation cavity to install the main unit of the electrical control cabinet.

[0027] In one embodiment, the bottom wall 12 is provided with a bottom filter window directly opposite the bottom cooling fan 30, which serves to filter and prevent external impurities from entering the cavity 101 from the bottom and affecting the operation of the internal electrical equipment.

[0028] After heat is generated, it heats the surrounding air. The air density decreases after being heated, so it naturally rises. Thus, by utilizing the natural physical phenomenon of "hot air rising and cold air sinking," the lower cooling fan is an intake fan and the upper cooling fan is an exhaust fan. This helps to expel the hot air that is about to rise more quickly, while the cooler air in the outside environment can enter the heat dissipation channel more quickly, thereby improving the heat dissipation efficiency.

[0029] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A heat dissipation mechanism for an electrical control cabinet, used for heat dissipation of the electrical control cabinet, wherein the electrical control cabinet includes a cabinet shell with a cavity, the cabinet shell having a rear side wall and a bottom wall, characterized in that, The heat dissipation mechanism of the electrical control cabinet includes a heat dissipation channel and a bottom cooling fan. The heat dissipation channel is installed inside the shell cavity and has a mounting cavity, a top opening above the mounting cavity, and a bottom opening below the mounting cavity. The mounting cavity is used to place electrical equipment with high heat dissipation requirements. An upper cooling fan is installed in the heat dissipation channel near the top opening, and a lower cooling fan is installed near the bottom opening. The upper and lower cooling fans cooperate to realize heat exchange between the heat dissipation channel and the outside. The top opening and the bottom opening are respectively abutted against the inner side of the rear side wall. The rear side wall is provided with filter windows directly opposite the top opening and the bottom opening. The bottom cooling fan is installed on the bottom wall to dissipate heat from electrical devices with low heat dissipation requirements inside the housing.

2. The heat dissipation mechanism of the electrical control cabinet as described in claim 1, characterized in that, The heat dissipation channel is located near the upper part of the rear sidewall, and an auxiliary heat dissipation window is installed on the lower part of the rear sidewall.

3. The heat dissipation mechanism of the electrical control cabinet as described in claim 1, characterized in that, The heat dissipation channel includes a main unit housing. The top and bottom of the main unit housing are fitted with trapezoidal housings on the side near the rear sidewall. The bottom of the trapezoidal housing is connected to the main unit housing and protrudes from the main unit housing in the horizontal direction. The electrical control cabinet housing is fitted with support ribs on the inner side of the rear sidewall for connecting the portion of the trapezoidal housing that protrudes from the main unit housing.

4. The heat dissipation mechanism of the electrical control cabinet as described in claim 3, characterized in that, The upper cooling fan and the lower cooling fan are located at the top and bottom of the main unit housing, respectively, and are directly opposite the trapezoidal housing located on the upper and lower sides of the main unit housing.

5. The heat dissipation mechanism of the electrical control cabinet as described in claim 1, characterized in that, The bottom wall has a bottom filter window located directly opposite the bottom cooling fan.

6. The heat dissipation mechanism of the electrical control cabinet as described in claim 1, characterized in that, The lower cooling fan is an intake fan, and the upper cooling fan is an exhaust fan.

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