Cooling fans for industrial electronic equipment

Abstract

This technology provides a solution to the chronic problems associated with connector systems by applying a structure that allows for direct connection of the power supply structure for cooling fans in industrial electronic equipment, rather than using existing connector types, thereby improving the convenience of power line connection work. [Solution] The present invention includes a housing that forms the outer shape of a cooling fan, blades installed inside the housing, a motor installed in the housing that provides rotational force to the blades, and a power supply unit installed in the housing that supplies power to the motor, wherein an external power line is fixed to the power supply unit by screw coupling and electrically connected so that power is supplied.

Description

Technical Field

[0001] The present invention relates to a cooling fan for industrial electronic equipment. More specifically, by applying a structure that can directly connect without configuring the power supply structure of the cooling fan into an existing connector type, it provides work convenience in the power line connection work and can solve chronic problems of the connector method.

Background Art

[0002] Generally, cooling fans for industrial electronic equipment are installed in various terminal boxes, communication equipment, servers, substations, computer devices, control devices, etc., and release the heat generated by the electronic equipment to the outside, and circulate in a way that allows cold air from the outside to flow in, preventing failures and malfunctions of the electronic equipment due to overheating, so that the electronic equipment functions smoothly.

[0003] Such a cooling fan is composed of, as basic components, a fan blade that acts to move air, a motor that provides power to rotate the fan blade, and a housing that protects the fan blade and the motor and supports the components. And a power connection part for supplying power to the motor is formed.

[0004] In the power connection part of the conventional cooling fan, the power line is exposed outside the housing. However, since the exposed power line is installed only in the basic length when manufacturing the cooling fan, additional connection of the power line is required for actual installation at the site. For connecting the power line, soldering must be performed or a separate connection connector must be installed and connected.

[0005] However, such a power supply method has the problem that the work is troublesome due to power connection, the connection safety of the power supply is reduced, and the connection part is exposed outside. Therefore, when the insulation is damaged or the wire is worn, electric shock accidents or short - circuit accidents may occur, and exposure to moisture, dust, and chemical substances may cause electrical problems.

[0006] Recently, cooling fans are being manufactured with more advanced methods, where connectors are installed at the ends of the power lines. While such connectors offer the advantage of easy connection when linking to the power lines, the connectors themselves can be defective, and because the connection point is exposed to the outside of the cooling fan, this method can also cause electrical problems due to environmental factors. Furthermore, the connector method has low mechanical connection strength, so if physical shock or vibration occurs, the power line may separate from the connector or a short circuit may occur.

[0007] Furthermore, the connector method has the disadvantage of having limited current capacity in power supply, making it unsuitable for high-performance cooling fans that require a lot of electrical energy. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Korean Published Patent Publication No. 10-2022-0138078 [Patent Document 2] Korean Registered Patent Publication No. 10-2137833 [Overview of the project] [Problems that the invention aims to solve]

[0009] The present invention was devised to solve the aforementioned problems, and aims to provide a cooling fan for industrial electronic equipment that can supply power to the cooling fan with a single power line without connecting or extending power lines, thereby improving the convenience of the worker's work, and solving the problems of connector failure that occur with conventional connector methods, electrical problems due to environmental factors (humidity, dust, etc.), connector deterioration, physical shock, and vibration that cause the mechanical connection state of the connector to deteriorate, thereby providing a cooling fan for industrial electronic equipment that can stably supply electrical energy. [Means for solving the problem]

[0010] The present invention includes a housing that forms the outer shape of a cooling fan, blades installed inside the housing, a motor installed in the housing that provides rotational force to the blades, and a power supply unit installed in the housing that supplies power to the motor, wherein an external power line is fixed to the power supply unit by screw coupling and electrically connected so that power is supplied.

[0011] The power supply unit is characterized by comprising: a main body fixedly installed in the housing, having a first screw hole formed for connecting the motor power line on the motor side with a screw, and a second screw hole formed for connecting the external power line with a screw; a metal plate installed in the first and second screw holes of the main body to electrically connect the external power line and the motor power line; and a cover portion rotatably connected to one side of the main body via a rotating shaft, which can open or close the top of the main body.

[0012] Furthermore, a protruding pin is integrally formed on the opposite side of the rotation axis of the cover portion, and the protruding pin is inserted into a coupling groove formed in the main body portion at an angle that closes the cover portion. [Effects of the Invention]

[0013] This invention allows power to be supplied using a screw or bolt connection method without applying existing connector types, and has the effect of improving the convenience of installation for workers by allowing power to be connected immediately during installation without the work of connecting the external power line to other power lines.

[0014] Furthermore, by applying a screw or bolt connection method, the present invention fundamentally solves the problems of existing connector defects, electrical problems caused by environmental factors (such as moisture and dust), connector deterioration, physical shock, and vibration that worsen the mechanical connection state of connectors, thereby improving electrical connection performance.

Brief Description of the Drawings

[0015] [Figure 1] It is a diagram showing the overall configuration of the cooling fan of the industrial electronic equipment of the present invention. [Figure 2] It is a perspective view showing the power supply unit of the present invention. [Figure 3] It is a perspective view showing the state where the cover part is opened from the power supply unit of the present invention. [Figure 4] It is a cross-sectional view showing the internal structure in the state where the cover part of the power supply unit according to the present invention is opened. [Figure 5] It is a cross-sectional view showing the internal structure in the state where the cover part of the power supply unit according to the present invention is closed. [Figure 6] It is a bottom perspective view showing the bottom surface of the main body part of the power supply unit of the present invention. [Figure 7] It is a diagram showing the structure for fastening the power supply unit of the present invention to the housing. [Figure 8] It is a diagram showing the structure for fastening the power supply unit of the present invention to the housing. [Figure 9] It is a partial cross-sectional perspective view showing the cross-sectional structure of the main body part of the power supply unit of the present invention. [Figure 10] It is a diagram showing another embodiment of the power supply unit according to the present invention.

Modes for Carrying Out the Invention

[0016] Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings. In the description of the present invention, when it is determined that specific descriptions of related known functions and configurations may unnecessarily obscure the gist of the present invention, the detailed descriptions thereof will be omitted.

[0017] The present invention relates to a cooling fan for industrial electronic equipment, which can be installed in various terminal boxes, communication equipment, servers, substations, computer devices, control devices, etc., and can also be applied to various other electronic equipment to release the heat generated by the electronic equipment to the outside and circulate in a way that allows cold air from the outside to flow in, thereby preventing failures and malfunctions of the electronic equipment due to overheating and enabling the smooth functioning of the electronic equipment.

[0018] As shown in FIG. 1, the cooling fan for industrial electronic equipment of the present invention comprises a housing 100 forming the outer shape of the cooling fan, a blade 200 installed inside the housing 100, a motor 300 installed on the housing 100 and providing a rotational force to the blade 200, and a power supply unit 400 installed on the housing 100 and used to supply power to the motor 300. An external power line 500 is fixed to the power supply unit 400 by screw connection and electrically connected to supply power, which is characterized by such a configuration.

[0019] The housing 100 is a body forming the outer shape of the cooling fan, and mainly made of plastic material and manufactured by molding. The interior of the housing 100 is formed in a cylindrical shape, having a structure that allows the blade 200 to rotate and force the fluid to move, and the exterior is formed in a square shape so that it can be stably installed at the position where it is to be installed.

[0020] The blade 200 is installed inside the housing 100 and configured to rotate by the motor 300, playing a core role in moving air. Since the blade 200 moves air while rotating, the heat of the electronic equipment can be efficiently released. And the motor 300 is configured to rotate the blade 200. Since the blade 200 and the motor 300 of the present invention are configured for application to a known cooling fan, specific descriptions are omitted.

[0021] A key feature of the present invention is that the power supply unit 400 is installed in the housing 100 to supply power to the motor 300.

[0022] Conventional cooling fans have a power supply structure where the motor's power wires are exposed outside the housing. Therefore, connecting the power wires requires either external soldering or the installation of a separate connector. This method compromises the safety of the power supply and can lead to various electrical accidents and malfunctions.

[0023] The power supply unit 400 of the present invention is configured such that the external power line 500 is fixed by screw connection (or bolt connection) and electrically connected to supply power. When the external power line 500 is fixed by screw connection and electrically connected in this way, the work of connecting the power lines to each other is not required, which improves the convenience of installation work and improves the safety of the power supply.

[0024] As shown in Figure 1, the power supply unit 400 is installed in a part of the housing 100, preferably in a space formed at the corner of the housing 100.

[0025] More specifically, the configuration of the power supply unit 400 is as shown in Figures 2 to 4. It is characterized by comprising: a main body 410 fixedly installed in the housing 100, having a first screw hole 411 for connecting the motor power line 310 on the motor 300 side with a screw, and a second screw hole 412 for connecting the external power line 500 with a screw; a metal plate 420 installed in the first screw hole 411 and the second screw hole 412 of the main body 410, which electrically connects the external power line 500 and the motor power line 310; and a cover 430 rotatably connected to one side of the main body 410 via a rotating shaft 431, thereby allowing the upper part of the main body 410 to be opened and closed.

[0026] The main body portion 410 and the cover portion 430 are preferably made of a non-conductive, easily moldable plastic material, while the metal plate 420 is preferably made of a metal material with good conductivity.

[0027] The main body 410 is fixedly installed in the housing 100, and a first screw hole 411 and a second screw hole 412 are formed therein so that the motor power line 310 on the motor 300 side and the external power line 500 can be connected. There can be two main types of screw connection methods for the first screw hole 411 and the second screw hole 412.

[0028] First, as shown in the drawing, one structure has a configuration in which the lower parts of the first screw hole 411 and the second screw hole 412 are closed, and the screws to be joined are inserted and fixed in a manner that drills down the bottom of the holes, and the other structure has screw threads formed on the inside of the first screw hole 411 and the second screw hole 412, and the two are joined and fixed with screws that fit the holes.

[0029] If there are two motor power lines 310, then two external power lines 500 are also required, so as shown in the drawing, there are two first screw holes 411 and two second screw holes 412. Furthermore, the cooling fan of the present invention is shipped with the motor power lines 310 pre-connected, and during installation, the worker only needs to connect the external power lines 500, thus offering the advantage of simplified installation.

[0030] The metal plate 420 of the power supply unit 400 is installed in the first screw hole 411 and the second screw hole 412, thereby electrically connecting the external power line 500 and the motor power line 310. As shown in Figures 4 and 5, the metal plate 420 is provided above the first screw hole 411 and the second screw hole 412, and a single metal plate 420 is provided so as to rest on top of the first screw hole 411 and the second screw hole 412, thereby electrically connecting the external power line 500 and the motor power line 310.

[0031] More specifically, a metal plate 420 is provided so as to cover the first screw hole 411 and the second screw hole 412 at once, and the motor power wire 310 and the external power wire 500 are placed on top of the metal plate 420 and connected via screws. Here, the power wires can also be connected by wrapping stripped wires around screws, but it is preferable to connect terminals to the power wires and fix the terminal portion with screws.

[0032] Furthermore, the cover portion 430 of the power supply unit 400 is rotatably connected to one side of the main body portion 410 via a rotating shaft 431, so that the upper part of the main body portion 410 can be opened and closed, as shown in Figures 2 and 3. That is, when connecting the external power line 500, the cover portion 430 is opened to perform the connection work, as shown in Figure 4, and after the connection work is completed, the cover portion 430 is closed, as shown in Figure 5, so that the electrically connected part is not exposed to the outside.

[0033] The cover portion 430 protects the main body portion 410 by preventing the portion where the motor power line 310 and the external power line 500 are connected from being exposed to the outside, thereby preventing short-circuit accidents by preventing foreign matter such as dust from entering.

[0034] Furthermore, it is preferable that the cover portion 430 forms a separation space between the main body portion 410 and the cover portion 430 so that interference between the motor power line 310 and the external power line 500 does not occur when the cover portion 430 is open or closed.

[0035] Furthermore, a protruding pin 432 is integrally formed on the opposite side of the rotation axis 431 of the cover portion 430, and is inserted into a coupling groove 413 formed in the main body portion 410 at the angle that closes the cover portion 430, thereby preventing the cover portion from being easily opened when it is closed.

[0036] Furthermore, fastening portions 414 are formed on both sides of the main body portion 410, allowing the main body portion 410 to be easily connected and fixed to the housing 100. The fastening portion 414 has a fastening projection 414a protruding from its outside, so as shown in Figures 7 and 8, it can be inserted into and connected to a fastening groove 110 formed in the housing 100. The fastening portion 414 has a rod structure that can be slightly deformed, and is designed so that when pressure is applied to the main body portion 410, the fastening projection 414a is inserted into the fastening groove 110, and once the connection is complete, it cannot be easily separated.

[0037] Furthermore, the fastening portion 414 and the housing 100 are guided and coupled so that they interlock in a male-female structure, so that the fastening projection 414a is accurately inserted into the fastening groove 110, and as shown in the drawing, both are configured in different shapes so that the guided structures have directionality, thereby preventing confusion in the coupling direction of the main body portion 410 and ensuring that it is coupled in the correct and accurate direction.

[0038] Furthermore, as shown in Figure 9, a partition wall 415 is integrally provided protruding from the upper part of the main body 410 of the present invention to demarcate the areas of the respective first screw holes 411 and second screw holes 412. Here, the partition wall 415 blocks the same first screw holes 411 or the same second screw holes 412, but the partition wall 415 between the first screw holes 411 and the second screw holes 412, which must be electrically connected, is structured so that the lower part of the partition wall 415 is not blocked. Therefore, the metal plate 420 can be installed in a manner that connects the first screw holes 411 and the second screw holes 412.

[0039] Furthermore, in the main body portion 410 of the present invention, a support step portion 416 is formed on the outside of the second screw hole 412 so as to protrude from the upper surface in which the second screw hole 412 is formed, thereby supporting the metal plate 420 on the support step portion 416 and ensuring that it is stably joined without detaching.

[0040] Figure 10 shows another embodiment of the present invention, in which guide support plates 440 are further provided protruding from the main body portion 410 and the cover portion 430 at the part where the external power line 500 is connected. Here, the protruding direction is the direction in which the external power line 500 is connected, the guide support plate 440 protruding from the main body portion 410 stably supports the lower part of the external power line 500, and the guide support plate 440 protruding from the cover portion 430 supports the upper part of the external power line 500.

[0041] In this way, the guide support plate 440 stably supports the upper and lower parts of the external power line 500, preventing the external power line 500 from bending up or down, thereby preventing damage to the external power line 500 and preventing short circuits. Furthermore, the guide support plate 440 is a part that is integrally attached to the main body 410 and the cover 430, and can even function as a handle that can open or close the cover 430.

[0042] Although the present invention has been described above with reference to the above embodiments, it goes without saying that a variety of modifications can be implemented within the scope of the technical concept of the present invention. [Explanation of Symbols]

[0043] 100 Housing 110 Fastening groove 200 blades 300 motor 310 Motor power cable 400 Power supply section 410 Main body 411 First screw hole 412 Second screw hole 413 Connection groove 414 Fastening section 414a Fastening projection 415 Partition Wall 416 Support step 420 Metal plate 430 Cover section 431 Rotation axis 432 Protruding pin 440 Guide support plate 500 external power line

Claims

1. The housing that forms the outer shape of the cooling fan, A blade installed inside the housing, A motor installed in the aforementioned housing provides rotational force to the blade, The housing includes a power supply unit for supplying power to the motor, A cooling fan for industrial electronic equipment, characterized in that an external power line is fixed to the power supply unit by screw coupling and electrically connected to supply power.

2. The aforementioned power supply unit, The main body is fixedly installed in the housing and has a first screw hole formed for connecting the motor power wire on the motor side with a screw, and a second screw hole formed for connecting the external power wire with a screw, A metal plate is installed in the first and second screw holes of the main body, and is used to electrically connect the external power line and the motor power line. A cooling fan for industrial electronic equipment according to claim 1, characterized in that it includes a cover portion that is rotatably coupled to one side of the main body portion via a rotating shaft and that can open or close the upper part of the main body portion.

3. A cooling fan for industrial electronic equipment according to claim 2, characterized in that a protruding pin is integrally formed on the opposite side of the rotation axis of the cover portion, and the protruding pin is inserted into a coupling groove formed in the main body portion at an angle that closes the cover portion.

Images