Standard communications chassis fan modular mounting device and method of use

Abstract

The application relates to the field of railway communication equipment, in particular to a standard communication case fan modular fixing device and a use method. Two elastic sheet bases are arranged on the two sides of the corresponding position of a fixing base, elastic sheets are arranged in each elastic sheet base through pivots, each pair of elastic sheets is symmetrical to each other, and rubber plugs are arranged in the positioning holes II of the elastic sheet bases in an interference fit; a stud I is arranged on the fixing base; a fan shell is arranged on a fan base, a fan cover is arranged at the upper end of the fan shell, and a fan side plate is arranged at the right side of the fan shell; and a fan shell assembly is arranged on the fixing base at the positions corresponding to the function modules. Installing the fan includes three processes of installing the fan, fixing the fan and installing multiple fans, and disassembling the fan includes three processes of elastic sheet ejection, fan unit dismounting and fan dismounting. The structural parts used are all general parts, the use demand of the case in different environments is met, the type of the structural parts is reduced, the procurement cost is lowered, and the installation and disassembly are facilitated.

Description

Technical Field

[0001] This invention relates to the field of railway communication equipment, and in particular to a modular fixing device for a standard communication chassis fan and its usage method. Background Technology

[0002] In the field of railway communication equipment, standardized communication equipment is installed in a variety of environments according to customer needs. Due to significant temperature differences in these environments, the heat dissipation requirements and locations for these standardized communication devices vary. Given the different operating environments and heat dissipation needs of standardized communication chassis, fans of varying numbers and locations are often installed within the chassis for cooling. This variability in requirements results in a wide variety of structural components for the chassis, hindering the management of components for general-purpose chassis and increasing procurement costs. Therefore, a modular fan mounting device needs to be designed to meet the usage requirements of chassis in different environments, reducing the types of structural components and lowering procurement costs. Furthermore, the fan mounting adopts a screwless design, facilitating installation. Summary of the Invention

[0003] In view of the heat dissipation requirements of standardized communication chassis, the present invention provides a modular fixing device for fans of standardized communication chassis and a method of use, which enables the standardized communication chassis to meet the heat dissipation requirements, while being convenient and quick to install.

[0004] The technical solution adopted in this invention is: a modular fixing device for a standard communication chassis fan, comprising a fixing base, an I-beam nail I, a spring plate base, a damping shaft, a spring plate, a rubber plug, a fan housing, a fan cover, a fan base, and a fan side plate; according to the position of the functional modules of the standard communication chassis, spring plate bases are respectively set on both sides of the corresponding position on the fixing base, and the spring plate is set in each spring plate base through the damping shaft. Each pair of spring plates is symmetrical to each other, the shaft head of the damping shaft is clearance-fitted with the positioning hole I of the spring plate base, and the shaft body of the damping shaft and the spring plate... The positioning hole III has a clearance fit, and the shaft tail of the damping shaft has a clearance fit with the positioning hole II of the spring plate base. The rubber plug is interference-fitted in the positioning hole II of the spring plate base. I-beams I are set on the fixed base at the corresponding positions of each functional module. The fan housing is set on the fan base, the fan cover is set on the upper end of the fan housing, and the fan side plate is set on the right side of the fan housing. The fan housing assembly, including the fan housing, fan cover, fan base, and fan side plate, is set on the fixed base at the corresponding positions of each functional module through the mounting hole I and the I-beams I.

[0005] In the above technical solution, the mounting hole I on the fan base is mushroom-shaped. The large diameter of mounting hole I is adapted to the head I of the I-beam nail I, and the small diameter of mounting hole I is adapted to the connecting post I of the I-beam nail I. Two irregular mounting holes IV are provided in the center of the front of the fan side plate. The small diameter end of mounting hole IV is an oblong hole with a diameter adapted to the cylindrical part of the rivet, and the large diameter end is a round hole with a diameter adapted to the head diameter of the rivet.

[0006] A method for using a modular fan mounting device for a standard communication chassis includes two processes: installation and disassembly. Both installation and disassembly are completed in three steps, as detailed below: Step 1, Install the fan: Open the fan cover, place the fan inside the fan housing of the fan assembly, and then close the fan cover; align the large diameter end of the mounting hole I of the fan base with the nail head I of the I-beam nail I, press the fan assembly down, and slide it to the left after it reaches the bottom, so that the small diameter end of the mounting hole I of the fan base is fitted with the connecting post I of the I-beam nail I; Step 2, fix the fan: After the fan assembly is slid to the left to the designated position, the tip of the spring plate enters the mounting hole III on the fan side plate under the action of the damping shaft, and the fan is fixed. Step 3, install multiple fans: Align the head II of the I-beam II of the downstream fan unit with the large-diameter end of the mounting hole IV on the fan side plate of the upstream fan unit, and slide it backward so that the connecting post II of the I-beam II is properly fitted with the small-diameter end of the mounting hole IV on the fan side plate; repeat steps 1 and 2 to complete the installation of multiple fans; the following is the fan removal: Step 4, spring disengagement: Press the spring's lever, and positioning hole III will drive the damping shaft to rotate. When the rotation angle of the damping shaft is greater than 10 degrees, the spring head will disengage from the mounting hole of the fan side plate. Step 5, remove the fan unit: Slide the fan unit to the right until the large diameter end of the mounting hole I on the fan base is aligned with the head I of the I-beam nail I, and then lift the fan unit upwards to complete the removal of the fan unit; Step 6, disassemble the fan: Unscrew the thumbscrews, open the fan cover, remove the fan, and the fan disassembly is complete.

[0007] The beneficial effects of this invention are: the modular fan mounting device uses universal structural components, which not only meets the usage requirements of different chassis environments but also reduces the types of structural components and lowers procurement costs. Furthermore, the fan mounting adopts a screwless design, facilitating installation and disassembly. Attached Figure Description

[0008] Figure 1 This is the main view of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the fan housing assembly installed; Figure 3 This is a schematic diagram of the fan housing assembly structure of the present invention; Figure 4 This is a schematic diagram showing the connection relationship between the spring base, damping shaft, and spring of the present invention; Figure 5 This is an exploded view of the modular fan fixing device of the present invention; Figure 6 This is an exploded view of the spring fragment device of the present invention; Figure 7 This invention is a schematic diagram of installing and removing a fan; Figure 8 This is a schematic diagram of the fan unit installed on a fixed base; Figure 9 This is a diagram illustrating the detachment of the shrapnel; Figure 10 This is a cross-sectional view of the spring contacts when the fan is installed. Figure 11 This is a cross-sectional view of the spring contacts when the fan is disassembled; Figure 12 yes Figure 1 Cross-sectional view of section A in the middle; Figure 13 This is a front view of the damping shaft; Figure 14 This is the left view of the damping shaft.

[0009] In the diagram: 1. Fixed base, 1-1. Fan positioning hole, 1-2. Base positioning hole; 2. I-beam nail I, 2-1. Nail head I, 2-2. Connecting post I; 3. Spring base, 3-1. Positioning hole I, 3-2. Positioning hole II, 3-3. Base mounting hole; 4. Damping shaft, 4-1. Shaft head, 4-2. Shaft body, 4-3. Shaft tail; 5. Spring, 5-1. Paddle, 5-2. Positioning hole III, 5-3. Paddle head; 6. Rubber plug; 7. Fan housing, 7-1. Threaded hole. 7-2. Positioning hole IV; 7-3. Mounting hole VI; 7-4. Mounting hole VII; 7-5. Shaft hole I; 8. Fan cover; 8-1. Positioning hole V; 8-2. Shaft hole II; 9. Fan base; 9-1. Mounting hole I; 9-3. Mounting hole II; 10. I-beam nail II; 10-1. Nail head II; 10-2. Connecting post II; 11. Hand screw; 12. Fan side plate; 12-1. Mounting hole III; 12-2. Mounting hole IV; 12-4. Mounting hole V; 13. Fan. Detailed Implementation

[0010] like Figures 1 to 14 As shown, a modular fixing device for a standard communication chassis fan includes a fixing base 1, an I-beam nail 12, a spring plate base 3, a damping shaft 4, a spring plate 5, a rubber plug 6, a fan housing 7, a fan cover 8, a fan base 9, and a fan side plate 12.

[0011] Based on the distribution of functional modules within the standard communication chassis, two rows of fan positioning holes 1-1 are provided on the end face of the fixed base 1, and base positioning holes 1-2 are provided on both sides of the fixed base 1; a corresponding threaded hole 7-1 is provided on the upper front of the fan housing 7, a corresponding positioning hole Ⅳ7-2 is provided in the middle of the left side of the fan housing 7, a corresponding mounting hole Ⅵ7-3 is provided on both sides of the bottom of the fan housing 7, a corresponding mounting hole Ⅶ7-4 is provided on the upper sides of both sides of the right side of the fan housing 7, and a pivot hole Ⅰ7-5 is provided on the upper sides of both sides of the fan housing 7; a positioning hole Ⅴ8-1 is provided on the front of the fan cover 8, and a pivot hole Ⅱ8-2 is provided on both sides of the fan cover 8; mounting holes Ⅱ9-3 are provided on both sides of the fan base 9, and a mushroom-shaped mounting hole Ⅰ9-1 is provided on the bottom surface of the fan base 9. The large diameter of mounting hole I9-1 is adapted to the head I2-1 of the I-beam nail I2, and the small diameter of mounting hole I9-1 is adapted to the connecting post I2-2 of the I-beam nail I2. Mounting holes II9-3 corresponding to mounting holes VI7-3 of the fan housing 7 are respectively provided on both ends of the fan base 9. Mounting holes III12-1 are respectively provided on the lower part of both sides of the fan side plate 12, corresponding to the tip 5-3 of the spring piece 5. Two irregular mounting holes IV12-2 are provided in the middle of the front of the fan side plate 12. The small diameter end of mounting hole IV12-2 is an oblong hole with a diameter adapted to the cylindrical part of the pull stud, and the large diameter end is a round hole with a diameter adapted to the head diameter of the pull stud. Mounting holes V12-4 corresponding to mounting holes VII7-4 of the fan housing 7 are respectively provided on the upper part of both sides of the fan side plate 12.

[0012] The damping shaft 4 is selected from the PHT343-001 shaft manufactured by Pseu-Hanjin Company. When the shaft body of this model rotates 15 degrees, the shaft head pops out and hovers. Rivet I2 to the fan positioning hole 1-1 of the fixed base 1; pass the damping shaft 4 through the positioning hole II3-2 of the spring plate base 3, the positioning hole III5-2 of the spring plate 5, and the positioning hole I3-1 of the spring plate base 3 in sequence. At this time, the shaft head 4-1 of the damping shaft 4 is clearance-fitted with the positioning hole I3-1 of the spring plate base 3, the shaft body 4-2 of the damping shaft 4 is clearance-fitted with the positioning hole III5-2 of the spring plate 5, and the shaft tail 4-3 of the damping shaft 4 is clearance-fitted with the positioning hole II3-2 of the spring plate base 3; insert the rubber plug 6 into the positioning hole II3-2 of the spring plate base 3 with an interference fit; align the base mounting hole 3-3 of the spring plate base with the base positioning hole 1-2 on the spring plate base, and use rivets to rivet the spring plate base 3 and the fixed base 1 together.

[0013] Rivet the hand-tightening screw 11 into the positioning hole V8-1 of the fan cover 8, and rivet the I-bolt II 10 into the positioning hole IV7-2 of the fan housing 7; align the pivot hole II8-2 of the fan cover 8 with the pivot hole I7-5 of the fan housing 7, and rivet them together using a pull rivet; align the mounting holes II9-3 on both sides of the fan base 9 with the mounting holes VI7-3 on both sides of the fan housing 7, and then rivet them together using a pull rivet; finally, align the mounting holes V12-4 of the fan side plate 12 with the mounting holes VII7-4 of the fan housing 7, and then rivet them together using a pull rivet; the fan housing assembly is now complete.

[0014] In use, insert the required functional modules into the communication chassis according to customer needs. At the corresponding functional module locations, install the fan housing assembly, including the fan housing 7, fan cover 8, fan base 9, and fan side plate 12, onto the mounting base 1 in the following manner: Align the large-diameter end of the mounting hole I9-1 of the fan base 9 with the nail head I2-1 of the I-beam nail I2, press down, and after pressing all the way down, slide to the left so that the connecting post I2-2 of the I-beam nail I2 is clearance-fitted with the small-diameter end of the mounting hole I9-1. At this point, the standard communication chassis fan modular fixing device is assembled.

[0015] like Figures 7 to 11 As shown, a method for using a modular fan mounting device for a standard communication chassis includes two processes: installation and disassembly. Both installation and disassembly are completed in three steps, as detailed below: Step 1, Install the fan: Open the fan cover 8, place the fan inside the fan housing 7, then close the fan cover 8, and screw the hand screw 11 into the threaded hole 7-1 of the fan housing 7 to fix the fan cover 8; align the large diameter end of the mounting hole I9-1 of the fan base 9 with the nail head I2-1 of the I-beam nail I2, press the fan assembly down, and after pressing it all the way down, slide it to the left so that the small diameter end of the mounting hole I9-1 is in clearance fit with the connecting post I2-2 of the I-beam nail I2; Step 2, fix the fan: After the fan assembly slides to the left to the designated position, the tip 5-3 of the spring piece 5 enters the mounting hole Ⅲ12-1 of the fan side plate under the action of the damping shaft 4, and the fan is fixed. Step 3, install multiple fans: Align the head II10-1 of the I-beam II10 of the downstream fan unit with the large-diameter end of the mounting hole IV12-2 of the fan side plate 12 of the upstream fan unit, and slide it backward so that the connecting post II10-2 of the I-beam II10 is in clearance fit with the small-diameter end of the mounting hole IV12-2 of the fan side plate 12; repeat steps one and two to complete the installation of multiple fans; The following is the process of disassembling the fan: Step 4, spring release: Press the lever 5-1 of spring 5, the positioning hole Ⅲ 5-2 drives the damping shaft 4 to rotate, and the tip 5-3 slowly moves out of the mounting hole Ⅲ 12-1 of the fan side plate 12. When the shaft body 4-12 rotates to an angle of 15 degrees, the tip 5-3 completely disengages from the mounting hole Ⅲ 12-1 of the fan side plate 12, the shaft tip 4-1 pops out from the shaft body 4-2 and hovers, the damping shaft 4 stops rotating, and the tip 5-3 is released. Step 5, remove the fan unit: Slide the fan unit to the right. When the large diameter end of the mounting hole I9-1 of the fan base 9 is aligned with the nail head I2-1 of the I-beam nail I2, lift the fan unit upward to complete the disassembly of the fan unit. Step 6, disassemble the fan: Loosen the thumbscrew 11, open the fan cover 8, and take out the fan 13 to complete the fan disassembly.

Claims

1. A modular fixing device for a standard communication chassis fan, characterized in that: The system includes a fixed base (1), an I-beam nail I (2), a spring plate base (3), a damping shaft (4), a spring plate (5), a rubber plug (6), a fan housing (7), a fan cover (8), a fan base (9), and a fan side plate (12). Based on the positions of the functional modules of the standard communication chassis, spring plate bases (3) are respectively set on both sides of the corresponding positions on the fixed base (1). The spring plate (5) is set within each spring plate base (3) via a damping shaft (4). Each pair of spring plates (5) is symmetrical to each other. The shaft head (4-1) of the damping shaft (4) is clearance-fitted with the positioning hole I (3-1) of the spring plate base (3), and the shaft body (4-2) of the damping shaft (4) is clearance-fitted with the positioning hole III (5-2) of the spring plate (5). (4) The shaft tail (4-3) is clearance-fitted with the positioning hole II (3-2) of the spring base (3), and the rubber plug (6) is interference-fitted in the positioning hole II (3-2) of the spring base (3); I-beam nail I (2) is set on the fixed base (1) at the corresponding position of each functional module; the fan housing (7) is set on the fan base (9), the fan cover (8) is set on the upper end of the fan housing (7), and the fan side plate (12) is set on the right side of the fan housing (7); the fan housing assembly including the fan housing (7), fan cover (8), fan base (9) and fan side plate (12) is set on the fixed base (1) at the corresponding position of each functional module through the mounting hole I (9-1) and the I-beam nail I (2).

2. The modular fixing device for a standard communication chassis fan according to claim 1, characterized in that: The mounting hole I (9-1) on the fan base (9) is mushroom-shaped. The large hole diameter of the mounting hole I (9-1) is adapted to the head I (2-1) of the I-shaped nail I (2), and the small hole diameter of the mounting hole I (9-1) is adapted to the connecting post I (2-2) of the I-shaped nail I (2). Two irregular mounting holes IV (12-2) are set in the middle of the front of the fan side plate (12). The small hole end of the mounting hole IV (12-2) is an oblong hole with a diameter adapted to the cylindrical part of the pull stud, and the large hole end is a round hole with a diameter adapted to the head diameter of the pull stud.

3. A method for using a modular fixing device for a standard communication chassis fan, characterized in that, The process includes two parts: installation and disassembly. Both installation and disassembly are completed in three steps, as follows: Step 1, install the fan: Open the fan cover (8), place the fan (13) in the fan housing (7) of the fan assembly, and close the fan cover (8); align the large diameter end of the mounting hole I (9-1) of the fan base (9) with the nail head I (2-1) of the I-beam nail I (2), press the fan assembly down, and slide it to the left after pressing it all the way down, so that the small diameter end of the mounting hole I (9-1) of the fan base (9) is fitted with the connecting post I (2-2) of the I-beam nail I (2); Step 2, fix the fan: After the fan assembly slides to the left to the designated position, the tip (5-3) of the spring piece (5) enters the mounting hole Ⅲ (12-1) of the fan side plate under the action of the damping shaft (4), and the fan is fixed. Step 3, install multiple fans: Align the head II (10-1) of the I-shaped pin II (10) of the downstream fan unit with the large diameter end of the mounting hole IV (12-2) of the fan side plate (12) of the upstream fan unit, and slide it backward so that the connecting post II (10-2) of the I-shaped pin II (10) fits into the small diameter of the mounting hole IV (12-2) of the fan side plate (12); repeat steps one and two to complete the installation of multiple fans; The following is the process of disassembling the fan: Step 4, spring disengagement: Press the lever (5-1) of the spring (5), and the positioning hole III (5-2) drives the damping shaft (4) to rotate. When the rotation angle of the damping shaft (4) is 10~15 degrees, the tip (5-3) disengages from the mounting hole III (12-1) of the fan side plate (12). Step 5, remove the fan unit: Slide the fan unit to the right so that the large diameter end of the mounting hole I (9-1) of the fan base (9) is aligned with the nail head I (2-1) of the I-shaped nail I (2), and then lift the fan unit upward to complete the disassembly of the fan unit; Step 6, disassemble the fan: unscrew the hand screw (11), open the fan cover (8), and take out the fan (13) to complete the fan disassembly.

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