Heat dissipation assembly for power distribution cabinet

Abstract

The heat dissipation assembly is installed on a cabinet body or a cabinet door, one end of the cabinet door is hinged to the cabinet body through a hinge, the heat dissipation assembly comprises a heat dissipation substrate, an installation frame and a plurality of heat dissipation fans, the cabinet body or the cabinet door is provided with an installation hole right opposite to the heat dissipation substrate, the installation frame is fixedly provided with a plurality of supporting arms, and the supporting arms are connected with the heat dissipation substrate. The cabinet body or the cabinet door, the heat dissipation substrate, the support arm and the mounting rack are fixedly connected, the mounting rack and the heat dissipation substrate are arranged at an interval, the heat dissipation fan is fixedly mounted on the mounting rack, and the air outlet end of the heat dissipation fan is arranged opposite to the heat dissipation substrate; the heat dissipation substrate comprises an outer plate and an inner plate, the outer plate and the inner plate are provided with a plurality of heat dissipation holes which are arranged in a matrix in a penetrating manner, the heat dissipation substrate is internally provided with an opening and closing assembly which is used for blocking or communicating the heat dissipation holes of the outer plate and the inner plate, and the inner side wall of the cabinet body is provided with a temperature sensor. The heat dissipation assembly for the power distribution cabinet has the advantages of being capable of improving the airflow flowing efficiency, high in safety and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a heat dissipation component for a power distribution cabinet. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. It is the final equipment of the distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in occasions with relatively dispersed loads and fewer circuits. The motor control center is used in occasions with concentrated loads and more circuits. They distribute the electrical energy of a circuit of the upper-level distribution equipment to the nearest load. This level of equipment should provide protection, monitoring and control for the load.

[0003] The current power distribution cabinets have high temperatures and low heat dissipation efficiency after long-term operation, which can easily lead to short circuits in components and even fires, posing safety hazards. If heat dissipation ports are directly opened in the cabinet, there will also be problems with low air flow efficiency, and mosquitoes will enter, affecting safety. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by this patent application is how to provide a heat dissipation component for a power distribution cabinet that can improve airflow efficiency, has high safety, and is easy to use.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A heat dissipation assembly for a power distribution cabinet is installed on a cabinet body or a cabinet door, one end of the cabinet door is hinged to the cabinet body through a hinge, and comprises a heat dissipation substrate, a mounting frame and a plurality of heat dissipation fans, the cabinet body or the cabinet door is provided with a mounting hole facing the heat dissipation substrate, the mounting frame is fixed with a plurality of arms, the cabinet body or the cabinet door, the heat dissipation substrate, the arms and the mounting frame are fixedly connected, the mounting frame is spaced apart from the heat dissipation substrate, the heat dissipation fan is fixedly mounted on the mounting frame and the air outlet end is arranged facing the heat dissipation substrate;

[0007] The heat dissipation substrate comprises an outer plate and an inner plate, and the outer plate and the inner plate are provided with a plurality of heat dissipation holes arranged in a matrix, an opening and closing component for blocking or connecting the heat dissipation holes of the outer plate and the inner plate is installed in the heat dissipation substrate, and a temperature sensor is installed on the inner wall of the cabinet.

[0008] In this way, when the temperature sensor detects that the temperature reaches the set value, the opening and closing components and the cooling fan are activated to connect the cooling holes of the outer plate and the inner plate. The cooling fan accelerates the airflow so that the airflow drives the heat to be discharged from the cooling holes. When heat dissipation is not required, the opening and closing components block the cooling holes of the outer plate and the inner plate to prevent mosquitoes from entering and improve safety. The installation of the cooling fan is facilitated by the setting of the mounting frame and the support arm. The cooling substrate includes an outer plate and an inner plate, which is convenient for the installation of the opening and closing components.

[0009] Among them, the opening and closing assembly includes a plurality of rotating shafts, an opening and closing block is fixed on the outer side of the rotating shaft, the opening and closing block is cylindrical, an opening and closing hole is opened on the opening and closing block, the outer plate and the inner plate are concavely facing the opening and closing block to form a contoured groove, the opening and closing block rotatably fits in the contoured groove, the two ends of the rotating shaft are rotatably connected to the heat dissipation substrate, and the end of the rotating shaft passes through the heat dissipation substrate and is connected to the synchronous drive assembly.

[0010] Among them, the synchronous drive component includes two sprockets fixedly installed on the ends of the rotating shaft, the sprockets at the ends of any two adjacent rotating shafts are connected by a chain, a servo motor is fixed on the support arm, and a driving sprocket is fixed on the output shaft of the servo motor, and the driving sprocket is connected to the sprocket of the rotating shaft located at the end by a chain.

[0011] The cabinet body or cabinet door, the heat dissipation substrate, the support arm and the mounting frame are provided with through holes facing each other, the mounting frame is fixed with nuts facing the through holes, and the bolts pass through the through holes and are connected with the nuts.

[0012] Wherein, the outer plate is protrudingly provided with a boss, the boss is located in the mounting hole and the side wall of the boss is in contact with the hole wall of the mounting hole.

[0013] In summary, the heat dissipation component for the power distribution cabinet has the advantages of being able to improve airflow efficiency, being highly safe, and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic structural diagram of a heat dissipation component for a power distribution cabinet.

[0015] Figure 2 for Figure 1 Exploded diagram of .

[0016] Figure 3 for Figure 1 Installation diagram of the .

[0017] Figure 4 for Figure 3 Schematic diagram of another orientation.

[0018] Figure 5 Schematic diagram of the opening and closing components. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the directions or positional relationships indicated by directional words such as "upper, lower" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0020] like Figure 1-5 As shown, a heat dissipation component for a power distribution cabinet is installed on a cabinet body or a cabinet door 1, one end of the cabinet door is hinged to the cabinet body through a hinge, and includes a heat dissipation substrate 2, a mounting frame 3 and a plurality of heat dissipation fans 4. The cabinet body or the cabinet door is provided with a mounting hole facing the heat dissipation substrate, and the mounting frame is fixed with a plurality of arms 5. The cabinet body or the cabinet door, the heat dissipation substrate, the arms and the mounting frame are fixedly connected, and the mounting frame is spaced apart from the heat dissipation substrate. The heat dissipation fan is fixedly mounted on the mounting frame and the air outlet end is arranged facing the heat dissipation substrate.

[0021] The heat dissipation substrate includes an outer plate 6 and an inner plate, and a plurality of heat dissipation holes 8 arranged in a matrix are arranged opposite to each other. An opening and closing component for blocking or connecting the heat dissipation holes of the outer plate and the inner plate is installed in the heat dissipation substrate, and a temperature sensor is installed on the inner wall of the cabinet.

[0022] In this way, when the temperature sensor detects that the temperature reaches the set value, the opening and closing components and the cooling fan are activated to connect the cooling holes of the outer plate and the inner plate. The cooling fan accelerates the airflow so that the airflow drives the heat to be discharged from the cooling holes. When heat dissipation is not required, the opening and closing components block the cooling holes of the outer plate and the inner plate to prevent mosquitoes from entering and improve safety. The installation of the cooling fan is facilitated by the setting of the mounting frame and the support arm. The cooling substrate includes an outer plate and an inner plate, which is convenient for the installation of the opening and closing components.

[0023] During implementation, the opening and closing assembly includes a plurality of rotating shafts 11, an opening and closing block 12 is fixed to the outside of the rotating shaft, the opening and closing block is cylindrical, an opening and closing hole 13 is opened on the opening and closing block, the outer plate and the inner plate are concavely opposite to the opening and closing block to form a contoured groove 14, the opening and closing block rotatably fits in the contoured groove, the two ends of the rotating shaft are rotatably connected to the heat dissipation substrate, and the end of the rotating shaft passes through the heat dissipation substrate and is connected to the synchronous drive assembly.

[0024] In this way, the setting of the synchronous drive component can drive all the rotating shafts to rotate synchronously. The rotating shaft will drive the opening and closing block to rotate in the contoured groove. When the opening and closing holes on the opening and closing block are directly opposite to the heat dissipation holes, the cooling fan is pneumatic and can drive the heat to be dissipated outward from the heat dissipation holes by driving the accelerated flow of the airflow. When heat dissipation is not needed, the rotating shaft drives the opening and closing block to rotate in the contoured groove, and the opening and closing holes on the opening and closing block are misaligned with the heat dissipation holes, thereby blocking the heat dissipation holes and preventing mosquitoes from entering through the heat dissipation holes.

[0025] Specifically, the contoured groove includes two half grooves, which are symmetrically arranged on the outer plate and the inner plate, and the outer plate and the inner plate also have shaft grooves, and the shaft is rotatably fitted in the shaft grooves.

[0026] During implementation, the synchronous drive assembly includes two sprockets 15 fixedly mounted on the ends of the rotating shaft, the sprockets at any two adjacent ends of the rotating shaft are connected by a chain 16, a servo motor 17 is fixed on the support arm, a driving sprocket 18 is fixed on the output shaft of the servo motor, and the driving sprocket is connected to the sprocket of the rotating shaft located at the end by a chain.

[0027] In this way, the servo motor drives the active sprocket and chain to rotate, and then drives the rotating shaft at the end, that is, the upper end or the lower end, to rotate. Through the transmission action of the sprocket and chain, all the rotating shafts are driven to rotate synchronously, and then all the driving blocks are driven to rotate synchronously. Single power input, easy to use.

[0028] During implementation, the cabinet body or cabinet door, the heat dissipation substrate, the support arm and the mounting frame are provided with through holes, the mounting frame is fixed with nuts 19 facing the through holes, and the bolts pass through the through holes and are connected with the nuts, so as to facilitate connection.

[0029] During implementation, the outer plate is provided with a boss protruding therefrom, the boss is located in the mounting hole, and the side wall of the boss is in contact with the hole wall of the mounting hole, thereby improving the sealing effect.

[0030] Specifically, it also includes a PLC controller, which is used to receive the signal of the temperature sensor and control the action of the servo motor. The profile adopts S7-200, which belongs to the existing technology and will not be described in detail.

[0031] Finally, it should be noted that those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include these modifications and variations.

Claims

1. A heat dissipation assembly for a power distribution cabinet, installed on a cabinet body or a cabinet door, one end of the cabinet door is hinged to the cabinet body through a hinge, characterized in that: It includes a heat dissipation substrate, a mounting frame and a plurality of heat dissipation fans, wherein the cabinet body or cabinet door is provided with a mounting hole facing the heat dissipation substrate, the mounting frame is fixed with a plurality of supporting arms, the cabinet body or cabinet door, the heat dissipation substrate, the supporting arms and the mounting frame are fixedly connected, the mounting frame is spaced apart from the heat dissipation substrate, the heat dissipation fan is fixedly mounted on the mounting frame and the air outlet end is arranged facing the heat dissipation substrate; The heat dissipation substrate comprises an outer plate and an inner plate, and the outer plate and the inner plate are provided with a plurality of heat dissipation holes arranged in a matrix, an opening and closing component for blocking or connecting the heat dissipation holes of the outer plate and the inner plate is installed in the heat dissipation substrate, and a temperature sensor is installed on the inner wall of the cabinet.

2. A heat dissipation assembly for a power distribution cabinet according to claim 1, characterized in that: The opening and closing assembly includes a plurality of rotating shafts, an opening and closing block is fixed on the outer side of the rotating shaft, the opening and closing block is cylindrical, an opening and closing hole is opened on the opening and closing block, the outer plate and the inner plate are concavely opposite to the opening and closing block to form a contoured groove, the opening and closing block rotatably fits in the contoured groove, the two ends of the rotating shaft are rotatably connected to the heat dissipation substrate, and the end of the rotating shaft passes through the heat dissipation substrate and is connected to the synchronous drive assembly.

3. A heat dissipation assembly for a power distribution cabinet according to claim 2, characterized in that: The synchronous drive assembly includes two sprockets fixedly mounted at the ends of the rotating shaft, the sprockets at any two adjacent ends of the rotating shaft are connected by a chain, a servo motor is fixed on the support arm, a driving sprocket is fixed on the output shaft of the servo motor, and the driving sprocket is connected to the sprocket of the rotating shaft located at the end by a chain.

4. The heat dissipation assembly for a power distribution cabinet according to claim 1, characterized in that: The cabinet body or cabinet door, the heat dissipation substrate, the support arm and the mounting frame are provided with through holes facing each other, the mounting frame is fixed with nuts facing the through holes, and the bolts pass through the through holes and are connected with the nuts.

5. The heat dissipation assembly for a power distribution cabinet according to claim 1, characterized in that: The outer plate is protrudingly provided with a boss, the boss is located in the mounting hole and the side wall of the boss is in contact with the hole wall of the mounting hole.

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