Optical fiber distribution box for communication engineering and method of using the same
By introducing a cooler and a dust filter into the fiber optic switching box, the problem of optical signal attenuation and aging caused by high temperature of the optical cable tray is solved, achieving efficient heat dissipation and dust prevention of the optical cable tray, and ensuring communication quality and system stability.
Patent Information
- Application Number
- CN202411449615.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2044-10-17
AI Technical Summary
Prolonged exposure of the optical cable tray to high temperatures causes changes in the refractive index of the optical fiber material, resulting in increased optical signal attenuation and accelerated fiber aging, which in turn affects communication quality and system stability.
A fiber optic switching box was designed, comprising a base box, a cabinet, slide rails, a fiber optic cable tray, a cover plate, a cooler, and a locking mechanism. The cooler blows cool air into the air frame, and the cool air enters the fiber optic cable tray for heat dissipation through the air inlet, air outlet, and ventilation channel. Dust is filtered through a dust filter to prevent dust from entering.
It effectively avoids high temperatures inside the optical cable tray, prevents changes in the refractive index of the optical fiber material, reduces optical signal attenuation, ensures communication quality and system stability, and facilitates the installation and removal of the optical cable tray.
Smart Images

Figure CN119045137B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of communication engineering, and in particular to an optical fiber exchange box for communication engineering and a use method thereof. BACKGROUND
[0002] The optical fiber exchange box is a device for managing and organizing optical fiber jumpers and realizing optical fiber line connection, distribution and protection in an optical fiber communication network, which can help to arrange and manage a large number of optical fiber lines, avoid line confusion and reduce error connection.
[0003] The cable tray inside the optical fiber exchange box is densely distributed, which can improve the space utilization and wiring efficiency inside the optical fiber exchange box. However, the cable tray is relatively closed inside, and the cable trays are tightly stacked and distributed, which is not conducive to heat dissipation. In addition, the line inside the cable tray itself generates a certain amount of heat during data transmission, plus the heat radiation of the external environment or adjacent equipment, which can cause the cable tray to be in a high-temperature state for a long time, so that the refractive index of the optical fiber material may change, causing the attenuation of the optical signal in the transmission process to increase. In addition, the long-term high-temperature state of the cable tray can also accelerate the aging of the optical fiber, affect the communication quality, and cause the system stability to decrease. SUMMARY
[0004] In order to overcome the shortcomings that the long-term high-temperature state of the cable tray can cause the refractive index of the optical fiber material to change, causing the attenuation of the optical signal in the transmission process to increase, and in addition, the long-term high-temperature state of the cable tray can also accelerate the aging of the optical fiber, affect the communication quality, and cause the system stability to decrease, the present application provides an optical fiber exchange box for communication engineering and a use method thereof.
[0005] The technical solution is as follows: an optical fiber exchange box for communication engineering, comprising a bottom box, a box body, a box door, sliding rails, cable trays, cover plates, first U-shaped plates, second U-shaped plates, a mounting box, an air guide frame, a first air cooler and a clamping mechanism, the bottom box is connected with the box body at the top, the box door is hinged to the box body, an air outlet is formed in the box body, a plurality of pairs of sliding rails are uniformly and spacedly connected in the box body, the cable trays are slidably connected between two adjacent pairs of sliding rails, the cover plates are arranged on the top of the cable trays, air inlets are formed in the bottom of the cable trays, the first U-shaped plates are connected with the bottom of the cable trays, the air outlets are formed in the cover plates, the second U-shaped plates are connected with the top of the cover plates, the first U-shaped plates and the second U-shaped plates can be connected to form a ventilation channel, the ventilation channel is in communication with the air inlets and the air outlets of the adjacent two cable trays, the mounting box is connected in the box body, the air guide frame is connected with the top of the mounting box, the first air cooler is installed in the mounting box, and the clamping mechanism is arranged on the box body and used for fixing the cable trays on the sliding rails.
[0006] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0007] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0008] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0009] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0010] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0011] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0012] Further, the clamping mechanism comprises contact blocks, a guide plate, first clamping blocks and first springs, the optical cable wire holding discs are connected with the contact blocks, the guide plate is connected in the box, the first clamping blocks for fixing the optical cable wire holding discs on the slide rails are slidably connected to the guide plate, the number of the first clamping blocks is consistent with that of the contact blocks, and the first springs are connected between the first clamping blocks and the guide plate.
[0013] The application further provides a use method of the optical fiber exchange box for communication engineering, and the use method comprises the following steps:
[0014] S1: the optical cable wire holding disc is taken out from the slide rail, then the cover plate is opened, wiring is performed, after the wiring is completed, the optical cable wire holding disc is placed back on the slide rail;
[0015] S2: the first clamping block can clamp the optical cable wire holding disc, so that the optical cable wire holding disc is fixed on the slide rail;
[0016] S3: the first cold air blower blows cold air into the air guide frame, the cold air enters the optical cable wire holding disc through the air inlet, the air outlet and the ventilation channel, and finally the cold air is discharged through the uppermost air outlet, so that the inside of the optical cable wire holding disc is cooled.
[0017] Beneficial effects: 1. The first cold air blower can blow cold air into the air guide frame, the cold air enters the optical cable wire tray through the air inlet, the air outlet and the ventilation channel, and finally the cold air is discharged through the air outlet, so that the inside of the optical cable wire tray is cooled, the inside of the optical cable wire tray is prevented from being in a high temperature state for a long time, the refractive index of the optical fiber material is prevented from changing, the attenuation of the optical signal in the transmission process is prevented from increasing, and the communication quality and system stability are ensured.
[0018] 2. The second clamping block can clasp the pull plate, so that the pull plate cannot reset, the first clamping block cannot reset, the staff does not need to pull the first clamping block additionally, the staff can conveniently take out the optical cable wire tray from the slide rail, and the staff can conveniently put the optical cable wire tray back on the slide rail.
[0019] 3. The second cold air blower can blow cold air into the box body, the inside of the box body is cooled, the temperature in the box body is reduced, the transmission performance of the optical signal is prevented from being reduced due to the fact that the temperature in the box body is too high, air in the outside can enter the box body through the air vent, the dust filter screen can filter dust, and the dust is prevented from entering the box body, so that the dust can be prevented from adhering to the optical cable wire tray. DETAILED DESCRIPTION
[0020] Figure 1 The three-dimensional structure schematic diagram of the present application is shown.
[0021] Figure 2 The three-dimensional structure schematic diagram of the air outlet, the slide rail, the optical cable wire tray, the cover plate, the mounting box and the air guide frame of the present application is shown.
[0022] Figure 3 The three-dimensional structure schematic diagram of the air inlet and the first U-shaped plate of the present application is shown.
[0023] Figure 4 The three-dimensional structure schematic diagram of the air outlet and the second U-shaped plate of the present application is shown.
[0024] Figure 5 The sectional view of the mounting box of the present application is shown.
[0025] Figure 6 The three-dimensional structure schematic diagram of the clamping mechanism of the present application is shown.
[0026] Figure 7 The three-dimensional structure schematic diagram of the guide plate, the first clamping block and the first spring of the present application is shown.
[0027] Figure 8 The three-dimensional structure schematic diagram of the baffle, the bracket and the positioning plate of the present application is shown.
[0028] Figure 9 The three-dimensional structure schematic diagram of the supporting plate and the bracket of the present application is shown.
[0029] Figure 10 A sectional view of the frame of the present application is shown.
[0030] Figure 11 A sectional view of the box of the present application is shown.
[0031] Figure 12 An enlarged view of part A of the present application is shown. Figure 11
[0032] Marked in the figure: 1 - bottom box, 2 - box, 3 - box door, 4 - air outlet, 5 - slide rail, 6 - optical cable wire tray, 7 - cover plate, 8 - air inlet, 9 - first U-shaped plate, 10 - air outlet, 11 - second U-shaped plate, 12 - mounting box, 13 - air guide frame, 14 - first cold air fan, 15 - contact block, 16 - guide plate, 17 - first clamping block, 18 - first spring, 19 - baffle, 20 - supporting plate, 21 - bracket, 22 - frame, 23 - air vent, 24 - dust filter screen, 25 - pull plate, 26 - second clamping block, 27 - second spring, 28 - second cold air fan, 29 - dustproof screen, 30 - positioning plate. DETAILED DESCRIPTION
[0033] The present application is described in detail below in conjunction with the accompanying drawings and specific examples, but is not limited to the present application.
[0034] As Figures 1-7 As shown, a fiber switching box for communication engineering comprises a bottom box 1, a box body 2, a box door 3, sliding rails 5, a cable tray 6, a cover plate 7, a first U-shaped plate 9, a second U-shaped plate 11, a mounting box 12, an air guide frame 13, a first cold air blower 14 and a clamping mechanism. The bottom box 1 is bolted to the top of the box body 2. The box door 3 is hinged to the front side of the box body 2. Four air outlets 4 are evenly spaced on the left and right sides of the upper part of the box body 2. A pair of sliding rails 5 are evenly spaced on the left and right sides of the upper part of the box body 2. The two sliding rails 5 of each pair are symmetrically arranged. The cable tray 6 is slidably connected between the two adjacent pairs of sliding rails 5. The cable tray 6 is spaced apart from the two adjacent pairs of sliding rails 5 by a certain distance to provide a space for the lines on the cable tray 6. The top of the cable tray 6 is provided with a cover plate 7. The top of the cable tray 6 is provided with a rubber strip to improve the sealing between the cable tray 6 and the cover plate 7, prevent cold air from leaking between the cable tray 6 and the cover plate 7, and open the air inlet 8 on the right side of the bottom of the cable tray 6. The first U-shaped plate 9 is connected to the right side of the bottom of the cable tray 6. The air outlet 10 is opened on the right part of the cover plate 7. The second U-shaped plate 11 is connected to the right side of the top of the cover plate 7. The first U-shaped plate 9 and the second U-shaped plate 11 can be connected to form a ventilation channel. The adjacent two cable trays 6 are connected through the air inlet 8, the air outlet 10 and the ventilation channel. The surface of the first U-shaped plate 9 and the surface of the second U-shaped plate 11 are provided with a rubber layer to improve the sealing of the ventilation channel and prevent cold air from leaking between the first U-shaped plate 9 and the second U-shaped plate 11. The mounting box 12 is bolted to the right lower part of the inner rear side of the box body 2. The air guide frame 13 is connected to the top of the mounting box 12. The top of the air guide frame 13 is in contact with the bottom of the lowermost cable tray 6. The top of the air guide frame 13 is provided with a notch matched with the first U-shaped plate 9. The first cold air blower 14 is installed in the mounting box 12 by bolts. The box body 2 is provided with a clamping mechanism for fixing the cable tray 6 on the sliding rail 5.
[0035] As shown in Figure 4 , Figure 6 and Figure 7 , the clamping mechanism comprises a contact block 15, a guide plate 16, a first clamping block 17 and a first spring 18. The left and right sides of the cable tray 6 are connected with the contact block 15. The left and right sides of the box body 2 are bolted with the guide plate 16. The first clamping block 17 is slidably connected to the guide plate 16. The number of the first clamping block 17 is consistent with the number of the contact block 15. The first spring 18 is connected between the first clamping block 17 and the guide plate 16.
[0036] As shown in Figure 8 and Figure 9As shown, it also includes a baffle 19, a support plate 20, and a bracket 21. The rear side of the optical cable tray 6 is hinged with a baffle 19. A gap for ventilation is left between the left side of the baffle 19 and the left side of the optical cable tray 6. The right side of the optical cable tray 6 is connected with a support plate 20, and the left side of the optical cable tray 6 is connected with a bracket 21.
[0037] like Figure 1 and Figure 10 As shown, it also includes a frame 22 and a dust filter 24. The frame 22 is bolted to the front of the bottom box 1. Ten ventilation holes 23 are opened on the frame 22. The dust filter 24 is connected to the rear of the frame 22.
[0038] like Figure 11 and Figure 12 As shown, it also includes a pull plate 25, a second locking block 26, and a second spring 27. The pull plate 25 is slidably connected to both the left and right sides of the box body 2, and the second locking block 26 is slidably connected to both the left and right sides of the box body 2. The side of the two second locking blocks 26 that are close to each other is a slope. The bottom of the second locking block 26 is provided with a groove. The second spring 27 is connected between the top of the second locking block 26 and the box body 2.
[0039] like Figure 2 As shown, it also includes a second air cooler 28, which is bolted to the lower left rear side of the housing 2.
[0040] like Figure 1 As shown, it also includes a dustproof net 29, and the dustproof net 29 is bolted to both the left and right sides of the upper part of the box 2.
[0041] like Figure 8 As shown, it also includes a positioning plate 30, and the top of the optical cable tray 6 is connected to the positioning plate 30.
[0042] The staff opens the box door 3, then pulls the pull plate 25, and the two pull plates 25 move away from each other, the pull plate 25 pulls the first clamping block 17, and the first clamping block 17 on the left and the right moves away from each other, the first clamping block 17 and the contact block 15 are out of contact, the optical cable supporting disc 6 is loosened, the first spring 18 is stretched, then the pull plate 25 will contact the inclined surface on the second clamping block 26, the pull plate 25 pushes the second clamping block 26 to move upwards, the second spring 27 is compressed, when the pull plate 25 and the groove on the second clamping block 26 correspond, the second clamping block 26 moves downwards to clamp the pull plate 25 under the action of the second spring 27, so that the pull plate 25 cannot reset, so that the first clamping block 17 cannot reset, without the staff pulling the first clamping block 17, the staff can take out the optical cable supporting disc 6 from the slide rail 5, and the staff can also put the optical cable supporting disc 6 back on the slide rail 5. After the optical cable supporting disc 6 is taken out, the cover plate 7 is opened, the baffle 19 is turned upwards, then the wiring is carried out, after the wiring is completed, the staff turns the baffle 19 downwards, the line in the optical cable supporting disc 6 is below the baffle 19, the supporting plate 20 and the bracket 21 can support the baffle 19, so that the baffle 19 cannot extrude the line, then the cover plate 7 is closed, the positioning plate 30 can position the cover plate 7, so that the position of the cover plate 7 is prevented from being deviated, then the optical cable supporting disc 6 is put back on the slide rail 5, the box body 2 and the optical cable supporting disc 6 can provide external protection for the optical fiber cable and resist external impact, after the optical cable supporting disc 6 is placed, the second clamping block 26 is pulled upwards, so that the second clamping block 26 loosens the pull plate 25, the second spring 27 is compressed, the pull plate 25 no longer pulls the first clamping block 17, under the action of the first spring 18, the first clamping block 17 on the left and the right moves towards each other, the first clamping block 17 contacts the contact block 15, and the optical cable supporting disc 6 is clamped, so that the optical cable supporting disc 6 is fixed on the slide rail 5, so that the optical cable supporting disc 6 is prevented from sliding out of the slide rail 5 and causing the line to fall off, the optical cable supporting disc 6 is put back on the slide rail 5 from below to above in sequence, so that the first U-shaped plate 9 and the second U-shaped plate 11 are prevented from colliding, after the optical cable supporting disc 6 is put back on the slide rail 5, the first U-shaped plate 9 and the second U-shaped plate 11 contact each other, the first U-shaped plate 9 and the second U-shaped plate 11 can be spliced into a ventilation channel, adjacent two optical cable supporting discs 6 are communicated through the air inlet 8, the air outlet 10 and the ventilation channel, the bottom of the lowermost optical cable supporting disc 6 contacts the top of the air guide frame 13, the lowermost first U-shaped plate 9 enters the gap in the air guide frame 13, so that the lowermost optical cable supporting disc 6 is communicated with the air guide frame 13, the first air cooler 14 blows cold air into the air guide frame 13, the cold air enters the lowermost optical cable supporting disc 6 through the air guide frame 13, then the cold air enters the remaining optical cable supporting discs 6 through the air inlet 8, the air outlet 10 and the ventilation channel, and finally the cold air is discharged through the uppermost air outlet 10. The inside of the optical cable supporting disc 6 is cooled, so that the inside of the optical cable supporting disc 6 is prevented from being in a high-temperature state for a long time, the refractive index of the optical fiber material is prevented from changing, so that the attenuation of the optical signal in the transmission process is prevented from increasing.The baffle 19 blocks the cold air, so that the cold air flows to the left below the baffle 19, then flows to above the baffle 19 through the gap between the left side of the baffle 19 and the left side of the optical cable tray 6, and finally is discharged through the air outlet 10, so that the cold air flows in each area of the optical cable tray 6, and the heat dissipation is more complete and better, the second cold air blower 28 can blow the cold air upward, the heat in the box body 2 is discharged through the air outlet 4, the heat dissipation of the box body 2 is performed, the temperature in the box body 2 is reduced, the transmission performance of the optical signal is prevented from being reduced due to the high temperature in the box body 2, the air outside can enter the box body 2 through the air vent 23, the dust filter screen 24 can filter the dust, and the dust is prevented from entering the box body 2, so that the dust is prevented from adhering to the optical cable tray 6, and the dust screen 29 can block the dust outside, and the dust is prevented from entering the box body 2 from the air outlet 4.
[0043] The application further provides a use method of the optical fiber exchange box for communication engineering, and the method comprises the following steps:
[0044] S1: the optical cable tray 6 is taken out from the slide rail 5, then the cover plate 7 is opened, wiring is performed, after the wiring is completed, the optical cable tray 6 is placed back on the slide rail 5;
[0045] S2: the first clamping block 17 can clamp the optical cable tray 6, so that the optical cable tray 6 is fixed on the slide rail 5;
[0046] S3: the first cold air blower 14 blows the cold air into the air guide frame 13, the cold air enters the optical cable tray 6 through the air inlet 8, the air outlet 10 and the ventilation channel, and finally the cold air is discharged through the uppermost air outlet 10 to perform heat dissipation on the inside of the optical cable tray 6.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, and are not used to limit the protection scope of the application. Although the application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the application.
Claims
1. An optical fiber distribution box for communication engineering, comprising a bottom box (1), a box body (2) and a box door (3), the top of the bottom box (1) is connected with the box body (2), the box door (3) is hinged on the box body (2), and an air outlet (4) is formed on the box body (2), characterized in that, The utility model also includes slide rail (5), optical cable wire tray (6), cover plate (7), first U-shaped plate (9), second U-shaped plate (11), installation box (12), air guide frame (13), first cold air blower (14) and clamping mechanism, the box (2) is evenly spaced and is connected with the slide rail (5) arranged in pairs, the slide rail (5) is slidably connected between the adjacent two pairs, the top of optical cable wire tray (6) is equipped with cover plate (7), the bottom of optical cable wire tray (6) is opened into air inlet (8), the bottom of optical cable wire tray (6) is connected with first U-shaped plate (9), the cover plate (7) is opened into air outlet (10), the top of cover plate (7) is connected with second U-shaped plate (11), first U-shaped plate (9) and second U-shaped plate (11) can be spliced into a ventilation channel, the adjacent two optical cable wire trays (6) are communicated through air inlet (8), air outlet (10) and ventilation channel, the box (2) is connected with installation box (12), the top of installation box (12) is communicated with air guide frame (13), and first cold air blower (14) is installed in installation box (12), and the box (2) is equipped with the clamping mechanism for fixing optical cable wire tray (6) on the slide rail (5).
2. The fiber optic closure for communication engineering according to claim 1, characterized in that, The clamping mechanism includes contact block (15), guide plate (16), first clamping block (17) and first spring (18), the optical cable wire tray (6) is connected with contact block (15), the box (2) is connected with guide plate (16), the first clamping block (17) for fixing the optical cable wire tray (6) on the slide rail (5) is slidably connected on the guide plate (16), the number of first clamping block (17) and contact block (15) is consistent, and the first spring (18) is connected between the first clamping block (17) and the guide plate (16).
3. The fiber optic closure for communications engineering according to claim 2, characterized in that, The utility model also includes baffle (19), supporting plate (20) and bracket (21), the baffle (19) is hinged in the optical cable wire tray (6), and the left side of baffle (19) and the left side in the optical cable wire tray (6) are left with the gap for ventilation, the supporting plate (20) for supporting baffle (19) is connected in the optical cable wire tray (6), and the bracket (21) for supporting baffle (19) is connected in the optical cable wire tray (6).
4. The fiber optic closure for communications engineering according to claim 3, characterized in that, The utility model also includes frame (22) and dust filter screen (24), the frame (22) is connected on the bottom box (1), the frame (22) is opened into ventilation opening (23), and the air of outside enters the box (2) through ventilation opening (23), and the dust filter screen (24) for filtering dust is connected on the frame (22).
5. The fiber optic closure for communications engineering according to claim 4, characterized in that, The utility model also includes pull plate (25), second clamping block (26) and second spring (27), the pull plate (25) is slidably connected in the box (2), and the pull plate (25) is used to pull first clamping block (17), so that first clamping block (17) no longer clamps optical cable wire tray (6), the second clamping block (26) for clamping pull plate (25) is slidably connected in the box (2), and the second spring (27) is connected between the second clamping block (26) and the box (2).
6. The fiber optic closure for communications engineering according to claim 5, characterized in that, The utility model also includes second cold air blower (28), and the second cold air blower (28) is installed in the box (2).
7. The fiber optic closure for communications engineering according to claim 6, characterized in that, Dustproof net (29) is further included, and the box body (2) is connected with the dustproof net (29) for blocking dust.
8. The fiber optic closure for communications engineering according to claim 7, characterized in that, Positioning plates (30) are further included, and the top of the optical cable wire tray (6) is connected with the positioning plates (30) for positioning the cover plate (7).
9. The method of using a fiber optic enclosure for communications engineering of claim 2, wherein, The following steps are included: S1: the optical cable wire tray (6) is taken out from the slide rail (5), then the cover plate (7) is opened, wiring is performed, after the wiring is completed, the optical cable wire tray (6) is placed back on the slide rail (5); S2: the first clamping block (17) can clamp the optical cable wire tray (6), so as to fix the optical cable wire tray (6) on the slide rail (5); S3: the first cold air blower (14) blows cold air into the air guide frame (13), the cold air enters the optical cable wire tray (6) through the air inlet (8), the air outlet (10) and the ventilation channel, and finally the cold air is discharged through the uppermost air outlet (10), and the inside of the optical cable wire tray (6) is cooled.
Citation Information
Patent Citations
Efficient heat dissipation optical fiber exchange box for communication engineering
CN211180333U
Structure of communication box
KR1020030012135A