CN220440733U - A POE switch - Google Patents

Abstract

The utility model discloses a POE switch, which includes a waterproof casing. Multiple sets of network cable sockets are provided on one side of the waterproof casing. A heat-dissipating metal plate is fixedly connected to the bottom of the waterproof casing through screws. A heat-exchange piece is fixedly connected to the top of the heat-dissipation metal plate. There are two sets of refrigeration slots between the fins and the heat dissipation metal plate. Semiconductor refrigeration fins are inserted into the refrigeration slots. A heat dissipation blower strip is fixedly installed on one side below the waterproof shell through bolts. The utility model uses the heat dissipation metal plate and the semiconductor refrigeration fins. And the setting of heat exchange fins can actively cool down through semiconductor refrigeration fins, and absorb the heat generated by the internal circuit of the switch through the heat exchange fins, and conduct the heat to the outside through the heat dissipation metal plate, which is different from traditional air-cooled heat dissipation. This method does not require opening holes in the switch shell, will not affect its waterproof performance, and the heat dissipation effect is far better than air cooling.

Description

A POE switch

Technical field

The utility model relates to the technical field related to switches, specifically a POE switch.

Background technique

POE switches refer to transmitting data for some IP-based terminals (such as IP phones, wireless LAN access points AP, network cameras, etc.) without making any changes to the existing Ethernet Cat.5 cabling infrastructure. At the same time, it can also provide DC power supply for such equipment. POE technology can ensure the security of existing structured wiring while ensuring the normal operation of the existing network and minimizing costs.

Some POE switches need to be used in outdoor venues, and the outdoor weather is changeable. Therefore, such POE switches need better sealing and waterproof performance to avoid water failure. For example, Chinese patent CN202221699556.0 is a POE switch with outdoor waterproof function. , a fully enclosed switch casing is used, but this also brings other problems. The POE switch generates heat when working, so it needs to dissipate heat. Traditional POE switches usually use air cooling or vents to dissipate heat. , but these heat dissipation methods require opening holes in the switch shell. Obviously, this will affect the sealing of the shell, and then affect the waterproofing. Therefore, the heat dissipation performance of a POE switch with good sealing will be insufficient, so we proposed a POE switch in order to resolve the issues raised above.

Utility model content

The purpose of this utility model is to provide a POE switch to solve the problem of poor heat dissipation performance of the POE switch with waterproof effect proposed by the above-mentioned background technology.

In order to achieve the above purpose, the present utility model provides the following technical solution: a POE switch, including a waterproof casing. One side of the waterproof casing is provided with multiple sets of network cable sockets. The network cable sockets are provided with rubber waterproof plugs. The waterproof casing A heat dissipation metal plate is fixedly connected to the bottom with screws, and a heat exchange piece is fixedly connected to the top of the heat dissipation metal plate. There are two sets of refrigeration slots between the heat exchange piece and the heat dissipation metal plate. There are two sets of refrigeration slots inserted into the refrigeration slots. Semiconductor refrigeration chip, the lower side of the waterproof shell is fixed with a heat dissipation blower strip through bolts.

Preferably, the network cable socket is provided with a rubber waterproof plug, and one side of the rubber waterproof plug is connected to the top of the network cable socket through an anti-lost connecting strip, thus preventing water from entering the network cable socket when not in use.

Preferably, the lower surface of the heat dissipation metal plate is processed with heat dissipation fins, and T-shaped support feet are processed on both sides of the heat dissipation fins. The bottom end of the T-shaped support feet is lower than the heat dissipation fins, which can dissipate the heat in the waterproof shell. It is radiated out through the heat dissipation fins, and the T-shaped support feet can support the fuselage and prevent the heat dissipation fins from deforming.

Preferably, the upper surface of the heat exchange fins is processed with heat-absorbing fins, and the heat-absorbing fins are provided with circuit board mounting slots, so that the heat-absorbing fins can absorb and transfer the heat in the waterproof shell.

Preferably, the hot end of the semiconductor refrigeration piece is in close contact with the heat dissipation metal plate, the cold end of the semiconductor refrigeration piece is in close contact with the heat exchange plate, and there is a uniform gap between the semiconductor refrigeration piece, the heat dissipation metal plate and the heat exchange plate. Coated with thermally conductive silicone grease, the semiconductor refrigeration plate can produce a cooling effect on one side of the heat exchange plate and transfer heat to the side of the heat dissipation metal plate. Thermal conductive silicone grease can enhance the heat transfer efficiency.

Preferably, the heat dissipation metal plate, heat dissipation fins and T-shaped support legs are all made of aluminum and are processed in one piece. The heat exchange fins and heat absorbing fins are also made of aluminum and are made of aluminum. Good thermal conductivity can quickly conduct heat out of the waterproof shell. At the same time, its light weight and high strength can reduce the weight of the switch.

Preferably, a heat dissipation motor is installed in the waterproof housing. The heat dissipation motor is located at both ends of the heat dissipation blower bar. The output end of the heat dissipation motor is fixedly connected with a first helical gear, and the first helical gear is engaged with a second helical gear. , One end of the second helical gear is fixedly connected to a transmission rod, one end of the transmission rod is fixedly connected to a cooling fan, the heat dissipation blow bar is provided with an air inlet at the transmission rod, and an air outlet grille is provided on the inside of the heat dissipation blow bar. grid, so that air can be blown on one side of the heat dissipation fins to speed up air flow and improve heat dissipation efficiency.

Preferably, the heat dissipation blowing bar is located on one side of the heat dissipation metal plate, and the heat dissipation blowing bar and the heat dissipation fins are perpendicular to each other. The heat dissipation blowing bar is higher than the T-shaped support foot, so that the heat dissipation blowing bar comes out from the heat dissipation metal plate.

The air flow blown out by the wind grille can flow along the gaps between the heat dissipation fins to improve heat dissipation efficiency.

Compared with the existing technology, the beneficial effects of this utility model are:

1. Through the fully sealed waterproof shell and rubber waterproof plug, the heatstroke prevention performance of the POE switch is guaranteed, which can prevent rainwater from entering the switch from the heat dissipation vent on the traditional switch shell. At the same time, the rubber waterproof plug can be plugged when not in use. into the network cable interface to avoid the risk of water entering the switch shell from the network cable interface, further improving its waterproof performance;

2. Through the settings of the heat dissipation metal plate, semiconductor refrigeration piece and heat exchange piece, the semiconductor refrigeration piece can be used for active cooling, and the heat generated by the internal circuit of the switch can be absorbed by the heat exchange piece, and the heat can be conducted to the switch through the heat dissipation metal plate. Externally, unlike traditional air-cooled heat dissipation, this method does not require opening holes in the switch shell, will not affect its waterproof performance, and the heat dissipation effect is far better than air-cooled heat dissipation;

3. Through the setting of the heat dissipation blower strip, the heat dissipation motor can be used to drive the cooling fan to rotate, thereby driving the air flow, which can quickly take away the heat on the heat dissipation fins, improve the heat dissipation efficiency, and prevent dust from accumulating in the gaps of the heat dissipation fins. , which can reduce the number of maintenance times.

Description of the drawings

Figure 1 is a schematic structural diagram of the network cable socket of the present utility model;

Figure 2 is a schematic diagram of the bottom structure of the waterproof housing of the present utility model;

Figure 3 is a schematic diagram of the structure of the heat dissipation fin of the present utility model;

Figure 4 is a schematic structural diagram of the semiconductor refrigeration chip of the present utility model;

Figure 5 is a schematic structural diagram of the heat dissipation and blowing strip of the present utility model;

Figure 6 is an enlarged structural schematic diagram of position A in Figure 5 of the present invention.

In the picture: 1. Waterproof shell; 2. Network cable socket; 3. Rubber waterproof plug; 301, anti-lost connecting strip; 4. Heat dissipation metal plate; 5. Heat dissipation fins; 6. T-shaped support feet; 7. Heat exchange fins ; 8. Refrigeration slot; 9. Semiconductor refrigeration fin; 10. Heat-absorbing fins; 11. Circuit board mounting slot; 12. Heat dissipation blower bar; 13. Cooling motor; 14. First helical gear; 15. Second bevel Gear; 16. Transmission rod; 17. Cooling fan; 18. Air inlet; 19. Air outlet grille.

Detailed ways

Below, the present utility model will be further described with reference to the accompanying drawings and specific implementation modes. It should be noted that, provided there is no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new implementations. example.

It should be noted that when a component is said to be "anchored" to another component, it can be directly on the other component or there can also be an intermediate component. When a component is said to be "connected" to another component, it may be directly connected to the other component or there may be an intermediate component present at the same time. When a component is said to be "set on" another component, it can be directly set on the other component or there may be a centered component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the invention belongs. The terms used in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Figure 1-6. This utility model provides the following solutions:

A POE switch includes a waterproof housing 1. A plurality of network cable sockets 2 are provided on one side of the waterproof housing 1. A rubber waterproof plug 3 is provided on the network cable socket 2. One side of the rubber waterproof plug 3 is connected to the network cable socket through an anti-lost connecting strip 301. 2 above, when encountering rainy weather, you can use the rubber waterproof plug 3 to block the network cable socket 2 to prevent rainwater from entering the waterproof housing 1 through the network cable socket 2. The rubber waterproof plug 3 is connected to the network cable socket 2 through the anti-lost connecting strip 301. Above, the loss of the rubber waterproof plug 3 can be avoided, and the waterproof shell 1 has excellent sealing performance and has no holes such as heat dissipation vents, so that rainwater cannot penetrate into the interior of the waterproof shell 1;

The bottom of the waterproof shell 1 is fixedly connected with a heat dissipation metal plate 4 through screws. The lower surface of the heat dissipation metal plate 4 is processed with heat dissipation fins 5. T-shaped support feet 6 are processed on both sides of the heat dissipation fins 5. The bottom ends of the T-shaped support feet 6 are lower than The heat dissipation fins 5, when the heat is accumulated on the heat dissipation metal plate 4, can be gradually conducted to the air outside the waterproof shell 1 through the heat dissipation fins 5. The T-shaped supporting feet 6 can lift the waterproof shell 1, increasing the connection between the heat dissipation fins 5 and The space on the ground improves heat dissipation efficiency and prevents the heat dissipation fins 5 from deforming;

There is a heat exchange fin 7 fixedly connected to the top of the heat dissipation metal plate 4. The upper surface of the heat exchange fin 7 is processed with heat-absorbing fins 10. The heat-absorbing fins 10 are provided with circuit board installation slots 11. When the switch works for a long time, the internal chip will Heat is generated, and the circuit board with the chip installed is installed in the circuit board mounting slot 11 on the heat-absorbing fin 10, so that the heat can be quickly conducted to the heat exchange fin 7 through the heat-absorbing fin 10, and the heat-absorbing fin 10 It also increases the surface area of the heat exchange fins 7 in contact with the air, thus greatly improving the heat absorption efficiency;

There are two sets of refrigeration slots 8 between the heat exchange fins 7 and the heat dissipation metal plate 4. A semiconductor refrigeration piece 9 is inserted into the refrigeration slot 8. The hot end of the semiconductor refrigeration piece 9 is in close contact with the heat dissipation metal plate 4. The semiconductor refrigeration piece 9 The cold end of 9 is in close contact with the heat exchange plate 7, and the semiconductor refrigeration plate 9, the heat dissipation metal plate 4 and the heat exchange plate 7 are all coated with thermal conductive silicone grease. When the semiconductor refrigeration plate 9 is working, the heat can be transferred through the Peltier effect. The heat on the exchange plate 7 is quickly conducted to one side of the heat dissipation metal plate 4, and the semiconductor refrigeration plate 9 is in close contact with the heat dissipation metal plate 4 and the heat exchange plate 7 and is coated with a thermally conductive silicone grease shell to improve heat conduction efficiency and avoid local overheating. ;

The heat dissipation metal plate 4, the heat dissipation fins 5 and the T-shaped support legs 6 are all made of aluminum and are processed in one piece. The heat exchange fins 7 and the heat absorbing fins 10 are also made of aluminum in one piece. Aluminum has good Thermal conductivity can quickly conduct heat to the outside of the waterproof housing 1. At the same time, the light weight and high strength can reduce the weight of the switch;

A heat dissipation blow bar 12 is fixedly installed on the lower side of the waterproof housing 1 through bolts. A heat dissipation motor 13 is installed in the waterproof housing 1. The heat dissipation motor 13 is located at both ends of the heat dissipation blow bar 12. The output end of the heat dissipation motor 13 is fixedly connected with a first helical gear 14. , the first helical gear 14 is meshed with a second helical gear 15, one end of the second helical gear 15 is fixedly connected to a transmission rod 16, one end of the transmission rod 16 is fixedly connected to a cooling fan 17, and the heat dissipation blow bar 12 is provided with an inlet at the transmission rod 16 There is an air outlet 18 and an air outlet grille 19 is provided on the inside of the heat dissipation blow bar 12. The heat dissipation blow bar 12 is located on one side of the heat dissipation metal plate 4, and the heat dissipation blow bar 12 and the heat dissipation fin 5 are perpendicular to each other. The heat dissipation blow bar 12 is higher than the T-shaped support. Pin 6, the heat dissipation motors 13 at both ends of the heat dissipation blow bar 12 can drive the first helical gear 14 to rotate when started. When the first helical gear 14 rotates, it can drive the second helical gear 15 meshed with it to rotate. When the second helical gear 15 rotates, it can The heat dissipation fan 17 is driven by the transmission rod 16 to rotate. When the heat dissipation fan 17 rotates, it can suck air from the air inlet 18 and blow it to the heat dissipation fins 5 through the air outlet grille 19. Since the heat dissipation blowing strips 12 and the heat dissipation fins 5 are perpendicular to each other , so the cold air blown out by the air outlet grille 19 will enter the gaps of the heat dissipation fins 5, take away the heat, and speed up the heat dissipation efficiency.

Working principle: When using this POE switch in an outdoor venue and encountering rainy weather, you can use the rubber waterproof plug 3 to block the network cable socket 2, thereby preventing rainwater from entering the waterproof housing 1 through the network cable socket 2. The rubber waterproof plug 3 By connecting the anti-lost connecting strip 301 to the top of the network cable socket 2, the rubber waterproof plug 3 can be prevented from being lost, and the waterproof housing 1 has excellent sealing performance and has no holes such as heat dissipation vents, so that rainwater cannot penetrate into the interior of the waterproof housing 1;

When the switch works for a long time, the internal chip will generate heat, and the circuit board with the added chip is installed in the circuit board installation slot 11 on the heat-absorbing fin 10, so that the heat can be quickly conducted to the heat exchanger through the heat-absorbing fin 10. On the fin 7, the heat-absorbing fin 10 also increases the surface area of the heat exchange fin 7 in contact with the air, thereby greatly improving the heat absorption efficiency. When the semiconductor refrigeration fin 9 is working, the heat exchange fin 7 can be transferred to the heat exchanger fin 7 through the Peltier effect. The heat is quickly conducted to one side of the heat dissipation metal plate 4, and the semiconductor refrigeration fin 9 is in close contact with the heat dissipation metal plate 4 and the heat exchange fin 7 and is coated with thermal conductive silicone grease to improve the heat conduction efficiency and avoid local overheating and heat accumulation in the heat dissipation area. When on the metal plate 4, it can be gradually conducted to the air outside the waterproof housing 1 through the heat dissipation fins 5;

The T-shaped supporting feet 6 can increase the support for the waterproof housing 1, and can also lift the waterproof housing 1 to increase the space between the heat dissipation fins 5 and the ground, improve the heat dissipation efficiency, and also prevent the heat dissipation fins 5 from deforming;

The heat dissipation motors 13 at both ends of the heat dissipation blow bar 12 can drive the first helical gear 14 to rotate when started. When the first helical gear 14 rotates, it can drive the second helical gear 15 meshed with it to rotate. When the second helical gear 15 rotates, it can pass through the transmission rod. 16 drives the cooling fan 17 to rotate. When the cooling fan 17 rotates, air can be sucked in from the air inlet 18 and blown to the cooling fins 5 through the air outlet grille 19. Since the cooling blowing strips 12 and the cooling fins 5 are perpendicular to each other, the air outlet The cold air blown out by the air grille 19 will enter the gaps of the heat dissipation fins 5, take away the heat, speed up the heat dissipation efficiency, and thereby complete a series of tasks. Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Within the spirit and principles of the present utility model, any modifications, equivalent substitutions, improvements, etc. shall be included in the protection scope of the present utility model.

Claims (8)

1. A POE switch, including a waterproof casing (1), characterized in that: one side of the waterproof casing (1) is provided with multiple sets of network cable sockets (2), and the bottom of the waterproof casing (1) is fixedly connected with screws. Heat dissipation metal plate (4), a heat exchange fin (7) is fixedly connected to the top of the heat dissipation metal plate (4), and two sets of refrigeration slots are provided between the heat exchange fin (7) and the heat dissipation metal plate (4). (8), a semiconductor refrigeration piece (9) is inserted into the refrigeration slot (8), and a heat dissipation blower bar (12) is fixedly installed on the lower side of the waterproof housing (1) through bolts. 2. A POE switch according to claim 1, characterized in that: the network cable socket (2) is provided with a rubber waterproof plug (3), and one side of the rubber waterproof plug (3) has an anti-lost connecting strip. (301) is connected above the network cable socket (2). 3. A POE switch according to claim 1, characterized in that: the lower surface of the heat dissipation metal plate (4) is processed with heat dissipation fins (5), and both sides of the heat dissipation fin (5) are processed with T T-shaped supporting feet (6), the bottom ends of the T-shaped supporting feet (6) are lower than the heat dissipation fins (5). 4. A POE switch according to claim 1, characterized in that: the upper surface of the heat exchange fins (7) is processed with heat-absorbing fins (10), and the heat-absorbing fins (10) are provided with Circuit board mounting slot (11). 5. A POE switch according to claim 1, characterized in that: the hot end of the semiconductor refrigeration piece (9) is in close contact with the heat dissipation metal plate (4), and the cold end of the semiconductor refrigeration piece (9) It is in close contact with the heat exchange plate (7), and the semiconductor refrigeration plate (9), the heat dissipation metal plate (4) and the heat exchange plate (7) are all coated with thermal conductive silicone grease. 6. A POE switch according to claim 3, characterized in that: the heat dissipation metal plate (4), heat dissipation fins (5) and T-shaped support feet (6) are all made of aluminum and are processed in one piece. The heat exchange fins (7) and the heat-absorbing fins (10) are also made of aluminum and are integrally processed. 7. A POE switch according to claim 1, characterized in that: a heat dissipation motor (13) is installed in the waterproof housing (1), and the heat dissipation motor (13) is located at both ends of the heat dissipation blower bar (12) , the output end of the heat dissipation motor (13) is fixedly connected with a first helical gear (14), the first helical gear (14) is meshed with a second helical gear (15), and one end of the second helical gear (15) A transmission rod (16) is fixedly connected, and one end of the transmission rod (16) is fixedly connected with a cooling fan (17). The heat dissipation blow bar (12) has an air inlet (18) at the transmission rod (16), so An air outlet grille (19) is provided on the inside of the heat dissipation and blowing bar (12). 8. A POE switch according to claim 4, characterized in that: the heat dissipation blowing bar (12) is located on one side of the heat dissipation metal plate (4), and the heat dissipation blowing bar (12) is in contact with the heat dissipation fins ( 5) Perpendicular to each other, the heat dissipation and blowing strips (12) are higher than the T-shaped supporting feet (6).