Multi-directional heat dissipation communication optical modem
By filling the phase change material and driving the cooling fan in the light cat, the problem of poor heat dissipation effect of the light cat is solved, and efficient and fast multi-directional heat dissipation is achieved, reducing the equipment temperature and shortening downtime.
Patent Information
- Application Number
- CN202510509358.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2025-08-01
AI Technical Summary
The existing Light Cat has poor heat dissipation effect, especially in a limited space, it is difficult to achieve efficient heat dissipation through multiple cooling fans, which affects the performance of the equipment.
The multi-directional heat dissipation design is adopted, and the main heat dissipation chamber and side panels are filled with phase change material. The heat dissipation fan is started by the phase change of the phase change material to achieve multi-directional heat dissipation and quickly dissipate heat when the heat increases.
It realizes efficient heat dissipation in a limited space, which can quickly dissipate heat when the light cat is running for a long time or fails, reduces equipment temperature and reduces equipment downtime.
Smart Images
Figure CN120416690A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of heat dissipation of optical network terminals, and specifically to a communication optical network terminal with multi-directional heat dissipation. Background Art
[0002] An optical network terminal, also known as an optical modem, mainly converts analog signals or optical signals into digital signals that can be recognized by a computer and a router.
[0003] The interior of the optical network terminal is mainly composed of a variety of electronic components. These electronic components generate a lot of heat during operation, which will cause the overall temperature of the optical network terminal to be relatively high, thus affecting the performance of the optical network terminal. To facilitate the heat dissipation of the optical network terminal, multiple heat dissipation holes are usually opened on the housing of the optical network terminal. However, the self-cooling effect through these heat dissipation holes is poor; there are also cases where heat dissipation fans are used for heat dissipation, but the heat dissipation capacity of a single heat dissipation fan is poor, and multiple heat dissipation fans need to be configured to be used simultaneously. However, the layout space inside the optical network terminal is small and cannot meet the layout of multiple heat dissipation fans. Therefore, the problem of rapid heat dissipation of the optical network terminal has always been a difficult point in the industry. Summary of the Invention
[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a communication optical network terminal with multi-directional heat dissipation to solve the deficiencies of the prior art.
[0005] The purpose of the present invention is achieved by the following technical solutions: A communication optical network terminal with multi-directional heat dissipation, including an optical network terminal housing. The optical network terminal housing is formed by connecting a bottom plate, a top plate, and multiple side plates. A main heat dissipation cavity is arranged inside the bottom plate. Phase change materials are filled in both the main heat dissipation cavity and the side plates. A heat dissipation fan is installed on the top plate, and the blowing direction of the heat dissipation fan faces the bottom plate. A trigger assembly is arranged inside the optical network terminal housing. The trigger assembly includes a mounting block and a trigger ejector rod. The mounting block is fixed on the top of the bottom plate. A mounting hole is opened on the mounting block, and the mounting hole communicates with the main heat dissipation cavity. The trigger ejector rod is slidably fitted in the mounting hole, and a switch for controlling the start of the heat dissipation fan is located on the moving path of the trigger ejector rod.
[0006] Further, the switch includes a switch housing, a storage battery, and a switching button. The switch housing and the storage battery are both installed on the inner top wall of the top plate. Inside the switch housing, there are a first positive metal sheet, a second positive metal sheet, a first negative metal sheet, and a second negative metal sheet. The first positive metal sheet and the second positive metal sheet are arranged opposite to each other, and the first negative metal sheet and the second negative metal sheet are arranged opposite to each other. The positive pole of the cooling fan is connected to the first positive metal sheet through a first positive wire, and the negative pole of the cooling fan is connected to the first negative metal sheet through a first negative wire. The positive pole of the storage battery is connected to the second positive metal sheet through a second positive wire, and the negative pole of the storage battery is connected to the second negative metal sheet through a second negative wire. The switching button slidably penetrates through the bottom of the switch housing and is located on the moving path of the trigger push rod. One end of the switching button away from the trigger push rod is connected with a first conductive sheet and a second conductive sheet. The first conductive sheet is used to connect the first positive metal sheet and the second positive metal sheet together, and the second conductive sheet is used to connect the first negative metal sheet and the second negative metal sheet together.
[0007] Further, an installation disk is arranged inside the switch housing. The installation disk is fixedly sleeved on the switching button. A first spring is sleeved on the switching button. One end of the first spring is connected to the installation disk, and the other end is connected to the inner bottom wall of the switch housing. When the first spring is in a normal state, the first positive metal sheet and the second positive metal sheet are in a disconnected state, and the first negative metal sheet and the second negative metal sheet are in a disconnected state.
[0008] Further, the installation hole includes a first hole, a second hole, and a third hole that are sequentially opened from top to bottom. The diameters of the third hole and the first hole are both smaller than that of the second hole. The trigger push rod is slidably fitted in the third hole and passes out through the first hole. A plurality of second springs are arranged around the trigger push rod in the second hole. A spring disk is fixedly sleeved on the trigger push rod. One end of the second spring is connected to the spring disk, and the other end is connected to the step formed by the first hole and the second hole.
[0009] Further, a sealing ring groove is formed on the inner wall of the third hole, and a sealing ring is arranged in the sealing ring groove. The inner ring of the sealing ring and the outer ring of the trigger push rod form a sealing surface.
[0010] Further, a corrugated pipe is sleeved on the trigger push rod. The corrugated pipe is located in the second hole. The inner ring of one end of the corrugated pipe is fitted and connected to the outer ring of the trigger push rod, and the other end is connected to the step formed by the third hole and the second hole.
[0011] Further, a liquid injection hole is formed on one side of the bottom plate, and the phase change material is filled into the main heat dissipation cavity through the liquid injection hole.
[0012] Further, an internal thread is machined in the liquid injection hole, and a plug is connected to the internal thread of the liquid injection hole.
[0013] Further, a plurality of heat dissipation holes are formed in the outer wall of the side plate, and a plurality of heat dissipation grooves are formed in the outer wall of the side plate. The heat dissipation grooves are arranged avoiding the heat dissipation holes. A baffle is connected to the outer wall of the side plate by screws, and the baffle is used to block the heat dissipation grooves, and the heat dissipation grooves are used to fill the phase change material.
[0014] Further, a sealing gasket is fixed at the position of the baffle corresponding to the heat dissipation groove. The size of the sealing gasket gradually decreases in the direction close to the side plate, and the sealing gasket is in interference fit in the heat dissipation groove.
[0015] The beneficial effects of the present invention are as follows:
[0016] Since the phase change material needs to absorb heat when changing from a solid state to a liquid state, therefore, by using the phase change material to absorb the heat generated by the optical modem, it has the advantages of large arrangement area and small occupied space, can dissipate heat from multiple directions for the optical modem, and will not increase the arrangement volume of the optical modem. Description of the Drawings [[ID=?]] [[ID=?]]
[0017] [[ID=?]] Figure 1 is a schematic internal structure diagram of a communication optical modem with multi-directional heat dissipation according to the present invention; [[ID=?]] [[ID=?]]
[0018] [[ID=?]] Figure 2 is [[ID=?]] Figure 1 the enlarged view at A in [[ID=?]] [[ID=?]]
[0019] [[ID=?]] Figure 3 is [[ID=?]] Figure 1 the enlarged view at B in [[ID=?]] [[ID=?]]
[0020] [[ID=?]] Figure 4 is [[ID=?]] Figure 1 the enlarged view at C in [[ID=?]] [[ID=?]]
[0021] In the figure, 1 - optical modem housing, 2 - main heat dissipation cavity, 3 - heat dissipation fan, 4 - mounting block, 5 - trigger push rod, 6 - switch housing, 7 - storage battery, 8 - first positive metal sheet, 9 - second positive metal sheet, 10 - first negative metal sheet, 11 - second negative metal sheet, 12 - switching button, 13 - first positive wire, 14 - first negative wire, 15 - second positive wire, 16 - second negative wire, 17 - first conductive sheet, 18 - second conductive sheet, 19 - mounting disc, 20 - first spring, 21 - first hole, 22 - second hole, 23 - third hole, 24 - second spring, 25 - spring disc, 26 - sealing ring, 27 - bellows, 28 - liquid injection hole, 29 - plug, 30 - heat dissipation hole, 31 - heat dissipation groove, 32 - baffle, 33 - sealing gasket. Detailed Embodiments
[0022] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following description.
[0023] Embodiment 1
[0024] As Figures 1 to 4 shown, a communication optical modem with multi-directional heat dissipation includes an optical modem housing 1. The optical modem housing 1 is formed by connecting a bottom plate, a top plate and a plurality of side plates. A main heat dissipation cavity 2 is arranged in the bottom plate. Phase change materials are filled in both the main heat dissipation cavity 2 and the side plates. A heat dissipation fan 3 is installed on the top plate, and the blowing direction of the heat dissipation fan 3 faces the bottom plate. A trigger assembly is arranged in the optical modem housing 1. The trigger assembly includes a mounting block 4 and a trigger ejector rod 5. The mounting block 4 is fixed on the top of the bottom plate. A mounting hole is opened on the mounting block 4, and the mounting hole communicates with the main heat dissipation cavity 2. The trigger ejector rod 5 is slidably fitted in the mounting hole. The switch for controlling the start of the heat dissipation fan 3 is located on the moving path of the trigger ejector rod 5. Since the phase change material needs to absorb heat when changing from solid state to liquid state, therefore, the heat generated by the optical modem is absorbed by the phase change material, which has the advantages of large layout area and small occupied space, can dissipate heat from multiple directions for the optical modem, and will not increase the layout volume of the optical modem. The heat generated by the operation of the optical modem is relatively low, and generally the heat dissipation purpose can be achieved through the heat dissipation holes opened on the optical modem 1. However, when the optical modem runs for a long time or the optical modem fails, the heat will increase. At this time, it is necessary to quickly dissipate heat for the optical modem. The setting of the phase change material can quickly dissipate heat when the heat of the optical modem increases. When the phase change material is converted into liquid, the phase change material will release heat and change back to solid state. Since the volume of the phase change material will increase when changing from solid state to liquid state, the trigger ejector rod 5 will be pushed to move. When the phase change material is basically converted into liquid, the trigger ejector rod 5 makes the heat dissipation fan 3 work, and the heat dissipation fan 3 starts to assist in heat dissipation, reducing the influence of the heat released by the phase change material on the optical modem. At the same time, the sound of the heat dissipation fan 3 starting can remind the user to turn off the optical modem.
[0025] Embodiment 2
[0026] On the basis of Embodiment 1, as Figure 1 and Figure 4As shown, a plurality of heat dissipation holes 30 are formed in the outer wall of the side plate, and a plurality of heat dissipation grooves 31 are formed in the outer wall of the side plate. The heat dissipation grooves 31 are arranged avoiding the heat dissipation holes 30. A baffle 32 is connected to the outer wall of the side plate by screws. The baffle 32 is used to block the heat dissipation grooves 31. The heat dissipation grooves 31 are used to fill the phase change material. When the optical modem operates normally, heat exchange between the external air and the air inside the optical modem is achieved through the heat dissipation holes 30, which can meet the heat dissipation of the optical modem during short-time operation. When the optical modem operates for a long time or fails, the heat inside the optical modem increases greatly. At this time, the heat will affect the phase change material, and the phase change material absorbs heat to achieve the effect of rapid heat dissipation. By means of arranging the heat dissipation grooves 31, it is convenient to install the phase change material. Place the solid phase change material in the heat dissipation grooves 31, and finally install the baffle 32 to complete the filling of the phase change material on the side plate. The operation is simple and the structure is simple.
[0027] Furthermore, a sealing gasket 33 is fixed at the position of the baffle 32 corresponding to the heat dissipation groove 31. The size of the sealing gasket 33 gradually decreases along the direction close to the side plate. The sealing gasket 33 is press-fitted in the heat dissipation groove 31. The opening of the heat dissipation groove 31 is sealed by the sealing gasket 33. Through the interference fit of the sealing gasket 33, the gap between the heat dissipation groove 31 and the baffle 32 is eliminated, avoiding the problem of overflow caused by the liquid phase change material.
[0028] Embodiment Three
[0029] On the basis of Embodiment Two, as Figures 1 to 3As shown in the figure, the switch includes a switch housing 6, a storage battery 7, and a switching button 12. The switch housing 6 and the storage battery 7 are both installed on the inner top wall of the top plate. Inside the switch housing 6, there are a first positive metal sheet 8, a second positive metal sheet 9, a first negative metal sheet 10, and a second negative metal sheet 11. The first positive metal sheet 8 and the second positive metal sheet 9 are arranged opposite to each other, and the first negative metal sheet 10 and the second negative metal sheet 11 are arranged opposite to each other. The positive electrode of the cooling fan 3 is connected to the first positive metal sheet 8 through a first positive wire 13, and the negative electrode of the cooling fan 3 is connected to the first negative metal sheet 10 through a first negative wire 14. The positive electrode of the storage battery 7 is connected to the second positive metal sheet 9 through a second positive wire 15, and the negative electrode of the storage battery 7 is connected to the second negative metal sheet 11 through a second negative wire 16. The switching button 12 slides through the bottom of the switch housing 6, and the switching button 12 is located on the moving path of the trigger rod 5. One end of the switching button 12 away from the trigger rod 5 is connected with a first conductive sheet 17 and a second conductive sheet 18. The first conductive sheet 17 is used to connect the first positive metal sheet 8 and the second positive metal sheet 9 together, and the second conductive sheet 18 is used to connect the first negative metal sheet 10 and the second negative metal sheet 11 together. Inside the switch housing 6, there is a mounting plate 19, and the mounting plate 19 is fixedly sleeved on the switching button 12. A first spring 20 is sleeved on the switching button 12. One end of the first spring 20 is connected to the mounting plate 19, and the other end is connected to the inner bottom wall of the switch housing 6. When the first spring 20 is in its normal state, the first positive metal sheet 8 and the second positive metal sheet 9 are in a disconnected state, and the first negative metal sheet 10 and the second negative metal sheet 11 are in a disconnected state. The phase change material in the main heat dissipation cavity 2 absorbs heat and changes from a solid state to a liquid state. At this time, the volume of the phase change material will increase, and the liquid phase change material will enter the mounting hole and push the trigger rod 5 upward, so that the trigger rod 5 will contact the switching button 12 and push the switching button 12 upward, causing the switching button 12 to stretch the first spring 20 and drive the first conductive sheet 17 and the second conductive sheet 18 upward, so that the first conductive sheet 17 contacts the first positive metal sheet 8 and the second positive metal sheet 9, and the second conductive sheet 18 contacts the first negative metal sheet 10 and the second negative metal sheet 11. Thus, under the action of the first positive wire 13, the second positive wire 15, the first negative wire 14, and the second negative wire 16, the storage battery 7 and the cooling fan 3 are connected into a circuit, so that the cooling fan 3 is started for auxiliary heat dissipation. After the optical modem is turned off, the cooling fan 3 can still work for heat dissipation, so that the phase change material can quickly change from a liquid state to a solid state, shortening the shutdown time of the optical modem. When the phase change material changes from a liquid state to a solid state, the switching button 12 moves downward under the reaction force of the first spring 20, causing the first conductive sheet 17 and the second conductive sheet 18 to move downward, disconnecting the conductive connection between the first positive metal sheet 8 and the second positive metal sheet 9, and disconnecting the conductive connection between the first negative metal sheet 10 and the second negative metal sheet 11, thereby turning off the cooling fan 3 and returning the optical modem to its initial state.
[0030] Example 4
[0031] Based on Example 3, as Figures 1 to 3 shown, the mounting hole includes a first hole 21, a second hole 22, and a third hole 23 that are sequentially formed from top to bottom. The diameters of the third hole 23 and the first hole 21 are both smaller than the diameter of the second hole 22. The trigger push rod 5 slides and fits in the third hole 23 and passes through the first hole 21. A plurality of second springs 24 are arranged around the trigger push rod 5 in the second hole 22. A spring disk 25 is fixedly sleeved on the trigger push rod 5. One end of the second spring 24 is connected to the spring disk 25, and the other end is connected to the step formed by the first hole 21 and the second hole 22. When the trigger push rod 5 moves upward, it will squeeze the second spring 24. When the phase change material changes from a liquid state to a solid state, the volume of the phase change material will decrease. At this time, the trigger push rod 5 is not affected by the force brought by the phase change material. At this time, the trigger push rod 5 moves downward and resets under the action of the second spring 24, so that the trigger push rod 5 is separated from the toggle button 12, and the toggle button 12 resets under the action of the first spring 20.
[0032] Further, a sealing ring groove is formed on the inner wall of the third hole 23, and a sealing ring 26 is arranged in the sealing ring groove. The inner ring of the sealing ring 26 and the outer ring of the trigger push rod 5 form a sealing surface. The sealing strength between the mounting block 4 and the trigger push rod 5 is improved through the sealing ring 26, so that the liquid phase change material will not enter the second hole 22, and the liquid phase change material can enter the third hole 23 to push the trigger push rod 5 upward; a bellows 27 is sleeved on the trigger push rod 5. The bellows 27 is located in the second hole 22. One end of the inner ring of the bellows 27 is fitted and connected to the outer ring of the trigger push rod 5, and the other end is connected to the step formed by the third hole 23 and the second hole 22. To further improve the sealing strength and prevent the liquid phase change material from overflowing from the top of the mounting block 4, the bellows 27 is provided in contact with the sealing ring 26. The bellows 27 has a telescopic effect and can adapt to the movement of the trigger push rod 5. At the same time, both ends of the bellows 27 can isolate the second hole 22 and the third hole 23, further improving the sealing effect.
[0033] Example 5
[0034] Based on Example 4, as Figure 1 shown, a liquid injection hole 28 is formed on one side of the bottom plate. The phase change material is filled into the main heat dissipation cavity 2 through the liquid injection hole 28. Internal threads are cut in the liquid injection hole 28, and a plug 29 is threadedly connected to the internal threads of the liquid injection hole 28. The phase change material is injected into the main heat dissipation cavity 2 in a liquid state through the liquid injection hole 28 until the phase change material enters the third hole 23 to push the trigger push rod 5 upward to trigger the toggle button 12. When it is seen that the cooling fan 3 is working, stop injecting the phase change material, and finally screw the plug 29 into the liquid injection hole 28.
Claims
1. A communication optical network terminal with multi-directional heat dissipation, comprising an optical network terminal housing (1), characterized in that, The optical network terminal housing (1) is formed by connecting a bottom plate, a top plate and a plurality of side plates. A main heat dissipation cavity (2) is arranged inside the bottom plate. Phase change materials are filled in both the main heat dissipation cavity (2) and the side plates. A heat dissipation fan (3) is installed on the top plate, and the blowing direction of the heat dissipation fan (3) faces the bottom plate. A trigger assembly is arranged inside the optical network terminal housing (1). The trigger assembly includes a mounting block (4) and a trigger push rod (5). The mounting block (4) is fixed on the top of the bottom plate. A mounting hole is formed in the mounting block (4), and the mounting hole communicates with the main heat dissipation cavity (2). The trigger push rod (5) is slidably fitted in the mounting hole, and a switch for controlling the start of the heat dissipation fan (3) is located on the moving path of the trigger push rod (5).
2. The multi-directional heat dissipation communication optical modem according to claim 1, characterized in that, The switch includes a switch housing (6), a storage battery (7) and a switching button (12). The switch housing (6) and the storage battery (7) are both installed on the inner top wall of the top plate. A first positive metal sheet (8), a second positive metal sheet (9), a first negative metal sheet (10) and a second negative metal sheet (11) are arranged inside the switch housing (6). The first positive metal sheet (8) and the second positive metal sheet (9) are arranged opposite to each other. The first negative metal sheet (10) and the second negative metal sheet (11) are arranged opposite to each other. The positive electrode of the heat dissipation fan (3) is connected to the first positive metal sheet (8) through a first positive wire (13). The negative electrode of the heat dissipation fan (3) is connected to the first negative metal sheet (10) through a first negative wire (14). The positive electrode of the storage battery (7) is connected to the second positive metal sheet (9) through a second positive wire (15). The negative electrode of the storage battery (7) is connected to the second negative metal sheet (11) through a second negative wire (16). The switching button (12) slidably penetrates through the bottom of the switch housing (6). The switching button (12) is located on the moving path of the trigger push rod (5). One end of the switching button (12) away from the trigger push rod (5) is connected with a first conductive sheet (17) and a second conductive sheet (18). The first conductive sheet (17) is used to connect the first positive metal sheet (8) and the second positive metal sheet (9) together. The second conductive sheet (18) is used to connect the first negative metal sheet (10) and the second negative metal sheet (11) together.
3. The multi-directional heat dissipation communication optical modem according to claim 2, characterized in that, A mounting disc (19) is arranged inside the switch housing (6). The mounting disc (19) is fixedly sleeved on the switching button (12). A first spring (20) is sleeved on the switching button (12). One end of the first spring (20) is connected to the mounting disc (19), and the other end is connected to the inner bottom wall of the switch housing (6). When the first spring (20) is in a normal state, the first positive metal sheet (8) and the second positive metal sheet (9) are in a disconnected state, and the first negative metal sheet (10) and the second negative metal sheet (11) are in a disconnected state.
4. A multi-directional heat dissipation communication optical modem according to claim 1, characterized in that, The installation hole includes a first hole (21), a second hole (22) and a third hole (23) that are sequentially opened from top to bottom. The diameters of the third hole (23) and the first hole (21) are both smaller than the diameter of the second hole (22). The trigger push rod (5) is slidably fitted in the third hole (23) and passes through the first hole (21). A plurality of second springs (24) are arranged around the trigger push rod (5) in the second hole (22). A spring disc (25) is fixedly sleeved on the trigger push rod (5). One end of the second spring (24) is connected to the spring disc (25), and the other end is connected to the step formed by the first hole (21) and the second hole (22).
5. The multi-directional heat dissipation communication optical modem according to claim 4, wherein, A sealing ring groove is formed in the inner wall of the third hole (23), and a sealing ring (26) is arranged in the sealing ring groove. A sealing surface is formed between the inner ring of the sealing ring (26) and the outer ring of the trigger push rod (5).
6. The multi-directional heat dissipation communication optical modem according to claim 5, characterized in that A corrugated pipe (27) is sleeved on the trigger push rod (5). The corrugated pipe (27) is located in the second hole (22). One end of the inner ring of the corrugated pipe (27) is fitted and connected to the outer ring of the trigger push rod (5), and the other end is connected to the step formed by the third hole (23) and the second hole (22).
7. The multi-directional heat dissipation communication optical modem according to claim 1, characterized in that, A liquid injection hole (28) is formed on one side of the bottom plate, and the phase change material is filled into the main heat dissipation cavity (2) through the liquid injection hole (28).
8. A multi-directional heat dissipation communication optical modem according to claim 7, characterized in that, Internal threads are machined in the liquid injection hole (28), and a plug (29) is connected to the internal threads of the liquid injection hole (28).
9. The multi-directional heat dissipation communication optical modem according to claim 1, characterized in that A plurality of heat dissipation holes (30) are formed in the outer wall of the side plate. A plurality of heat dissipation grooves (31) are formed in the outer wall of the side plate. The heat dissipation grooves (31) are arranged avoiding the heat dissipation holes (30). A baffle (32) is connected to the outer wall of the side plate by screws. The baffle (32) is used to block the heat dissipation grooves (31), and the heat dissipation grooves (31) are used to fill the phase change material.
10. The multi-directional heat dissipation communication optical modem according to claim 9, characterized in that, A sealing gasket (33) is fixed at the position of the baffle (32) corresponding to the heat dissipation groove (31). The size of the sealing gasket (33) gradually decreases in the direction close to the side plate. The sealing gasket (33) is in interference fit in the heat dissipation groove (31).