POE switch

Abstract

The utility model relates to the technical field of switch design, in particular to a POE switch which comprises a main shell, a working cavity used for installing a main circuit board is arranged in the main shell, and a blowing pipe used for discharging airflow in the working cavity is arranged at the bottom of the working cavity. According to the POE switch designed by the utility model, the first fan blades can be driven to rotate through the main motor, so that external air can be sucked into the main shell and then takes away heat, and the replaceable filter can effectively remove dust in airflow, so that the dust can be prevented from entering the working cavity to the greatest extent, and the working efficiency is improved. And the replaceable filter can be quickly replaced without opening the main shell, so that the normal work of the POE switch is not interfered, the maintainability of the POE switch is improved, and the overall reliability of the equipment is improved. The problems that an existing POE switch is difficult in heat dissipation and poor in dustproof performance are solved, the heat dissipation efficiency can be effectively improved, and the use reliability of equipment can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the switch design technical field, concretely is a POE switch. BACKGROUND

[0002] POE switch is used for supplying power for equipment through network cable, and the use of the current POE switch mainly faces two problems: the first problem is that the demand power of existing power equipment is higher and higher, and with the progress of technology, the power supply of more than 100 watts of high power has become a necessity, since the POE switch needs to bear the power supply demand of multiple devices, therefore, the natural cooling cannot effectively realize the heat dissipation of the POE switch; the second problem is that with the development of POE switch technology, more and more outdoor application occasions are developed, and a large amount of dust exists in the outdoor environment, if these dusts enter the interior of the POE switch, not only the heat dissipation efficiency will be affected, but also the reliability of the equipment will be seriously reduced.

[0003] Simply by increasing the form of multilayer filter screen to isolate dust is easy to block the corresponding filter screen when there is more dust, so it is necessary to disassemble the POE equipment for maintenance, which interferes with the normal work of the corresponding equipment, therefore, a dustproof form capable of online maintenance and easy to clean is needed.

[0004] The patent with the patent name of POE switch and the authorization announcement number of CN220440733U provides a scheme of realizing refrigeration on the interior of the POE switch by using semiconductor refrigerating sheet, but the semiconductor refrigerating sheet used in the scheme will generate a large amount of heat in the refrigeration process, and an additional heat dissipation structure is needed, otherwise the heat will accumulate near the POE switch to produce temperature accumulation, thereby reducing the heat dissipation efficiency and the working reliability of the equipment, and secondly, the semiconductor refrigeration technology has high energy consumption and low refrigeration capacity, so the use cost is high, which is not conducive to wide application.

[0005] Therefore, we need a POE switch to solve the problems of difficult heat dissipation and poor dustproof performance of the existing POE switch, which can effectively improve the heat dissipation efficiency and the use reliability of the equipment. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the problems of difficult heat dissipation and poor dustproof performance of the existing POE switch, and provides a POE switch, which can effectively improve the heat dissipation efficiency and the use reliability of the equipment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a POE switch comprises:

[0008] A main shell, an inner part of the main shell is provided with a working cavity for installing a main circuit board, and a bottom of the working cavity is provided with a blowing pipe for discharging airflow in the working cavity;

[0009] Replaceable filters, the replaceable filters are installed on the left and right sides of the main shell, and an inner part of the replaceable filter is provided with a flow guide channel, the replaceable filter is provided with a front end filter screen and a rear end filter screen at the front and rear ends of the flow guide channel respectively, the left and right ends of the main shell are provided with air inlets for connecting the flow guide channel and the working cavity, and the replaceable filter is provided with at least one dust storage cavity connected with the flow guide channel, and a spoiler is arranged between the dust storage cavity and the flow guide channel for disturbing airflow in the dust storage cavity and the flow guide channel.

[0010] A main motor, the main motor is installed at the bottom of the main shell, and an output end of the main motor drives a first fan blade inserted into the working cavity.

[0011] Preferably, the main shell fixes the replaceable filter through a limiting device, and the limiting device includes a first sliding plate slidingly installed in the replaceable filter, a bottom of the first sliding plate is provided with a first return spring for pushing the first sliding plate to move, and a rear end of the first sliding plate is integrally formed with a limiting block for inserting into the main shell to fix the limiting block.

[0012] Preferably, the main motor is provided with a cooling fin for heat dissipation, and the end of the blowing pipe sprays towards the cooling fin, and the blowing pipe is provided with a layer of fluff for closing the blowing pipe to prevent dust from entering the blowing pipe.

[0013] Preferably, the dust storage cavity is provided with a porous adsorber for adsorbing dust, and the porous adsorber is formed by one or more combinations of activated carbon, microporous ceramic and flannelette bag.

[0014] Preferably, the inner wall of the dust storage cavity and the inner wall of the flow guide channel are both provided with a dust absorption layer, and the dust absorption layer is any one of a grease coating, a fluff adsorption layer or a universal cleaning rubber layer.

[0015] Preferably, a top of the working cavity is provided with a first partition plate for isolating the air inlet from the working cavity and forming a flow delivery cavity, a second partition plate is fixedly installed between the working cavity and the first partition plate, a blowing cavity is formed between the first partition plate and the second partition plate, an output end of the main motor drives a second fan blade inserted into the blowing cavity, the first partition plate is provided with at least one top through hole for connecting the blowing cavity, the flow delivery cavity is provided with a flow delivery pipe for connecting the top through hole and the air inlet, the second partition plate is provided with a middle through hole for connecting the blowing cavity, and the working cavity is provided with a flow guide heat exchange pipe for connecting the middle through hole and the blowing pipe and for heat exchange.

[0016] Preferably, the guide heat exchange pipe is integrally formed with auxiliary heat exchange fins for heat exchange between the gas in the working cavity and the gas in the guide heat exchange pipe, and at least four guide heat exchange pipes are arranged in the working cavity.

[0017] Preferably, the front end of the main shell is provided with a hollow shaft communicating with the working cavity, and a rotary mounting frame is rotatably mounted on the hollow shaft, a network interface is fixedly mounted on the rotary mounting frame, and the network interface is electrically connected with the main circuit board through a lead wire penetrating through the hollow shaft, and a dustproof cap for closing the network interface is fixedly connected to the rotary mounting frame.

[0018] Preferably, the end of the hollow shaft is circumferentially provided with at least four limiting grooves, and a second sliding plate is slidingly mounted in the rotary mounting frame, a second return spring for pressing the position of the second sliding plate is mounted on the rotary mounting frame, and a clamping rod is fixedly mounted at the end of the second sliding plate and inserted into the limiting groove for limiting.

[0019] Compared with the prior art, the utility model has the advantages that:

[0020] The POE switch can drive the first fan blade to rotate by the main motor, so that the external air can be sucked into the guide channel and then sent into the working cavity after being dusted by the front filter screen, the ash storage cavity and the rear filter screen, and then sprayed out by the spray pipe, so that the dust can be maximally avoided from entering the working cavity, and the replaceable filter can be quickly replaced without opening the main shell, so that the normal work of the POE switch is not disturbed, the maintainability of the POE switch is improved, and the overall reliability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model;

[0022] Figure 2 It is a structural side view of the utility model;

[0023] Figure 3 It is a structural sectional view of the working cavity in the utility model;

[0024] Figure 4 It is a structural sectional view of the replaceable filter in the utility model;

[0025] Figure 5 It is a structural schematic view of the limiting device in the utility model;

[0026] Figure 6 It is a structural schematic view of the rotary mounting frame in the utility model.

[0027] Fig. 1, main shell; 2, replaceable filter; 3, limiting device; 301, limiting block; 302, first sliding plate; 303, first reset spring; 4, second sliding plate; 5, network interface; 6, dustproof cap; 7, rotating mounting frame; 8, fluff layer; 9, blowing pipe; 10, main motor; 11, heat dissipation fin; 12, clamping rod; 13, rear-end filter screen; 14, air inlet; 15, flow guide heat exchange pipe; 16, front-end filter screen; 17, flow guide channel; 18, porous adsorber; 19, dust storage cavity; 20, spoiler; 21, main circuit board; 22, second reset spring; 23, hollow shaft; 24, limiting groove; 25, first fan blade; 26, second fan blade; 27, flow delivery pipe; 28, top through hole; 29, first partition plate; 30, flow delivery cavity; 31, blowing cavity; 32, working cavity; 33, auxiliary heat exchange fin; 34, middle through hole; 35, second partition plate. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme of the utility model to carry out clearly, completely describe, and the advantage is more clear and distinct, the following combining the drawings to the utility model embodiment carries out further detailed explanation. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the utility model embodiments, and not for limiting the utility model embodiments, all other embodiments obtained by the person skilled in the art without doing creative work under the premise, belong to the scope of the utility model protection.

[0029] Embodiment one: please refer to Figures 1 to 5 The utility model provides a POE switch, including main shell 1, replaceable filter 2, main motor 10, the inside of main shell 1 is set up and is used for installing the working cavity 32 of main circuit board 21, and the bottom of working cavity 32 is provided with the blowing pipe 9 for the air flow in working cavity 32 exhaust, main circuit board 21 is used for controlling the normal work of this POE switch, and the network interface 5 of direct connection can be connected on main circuit board 21.

[0030] Please refer to Figure 1 、 Figure 3 、 Figure 4 And Figure 5The replaceable filter 2 is plugged and mounted on the left and right sides of the main shell 1, and the inside of the replaceable filter 2 is provided with a flow guide channel 17, the replaceable filter 2 is respectively provided with a front end filter screen 16 and a rear end filter screen 13 at the front and rear ends corresponding to the flow guide channel 17, the front end filter screen 16 is a primary efficiency filter screen, the rear end filter screen 13 is a medium efficiency filter screen or a high efficiency filter screen, the left and right ends of the main shell 1 are respectively provided with air inlets 14 for communicating the flow guide channel 17 and the working chamber 32, the replaceable filter 2 is provided with at least one dust storage cavity 19 communicating with the flow guide channel 17, and the dust storage cavity 19 and the flow guide channel 17 are provided with a spoiler 20 for disturbing the airflow in the dust storage cavity 19 and the flow guide channel 17, the spoiler 20 is used to disturb the airflow sent into the dust storage cavity 19 from the flow guide channel 17 into turbulence, so that the dust particles in the turbulence collide with the inner wall of the dust storage cavity 19, so that the dust particles fall into and deposit in the dust storage cavity 19, the shape of the spoiler 20 can be arc-shaped and at least two spoilers 20 can be provided in the same dust storage cavity 19, and the inner wall of the dust storage cavity 19 can be provided in the form of a wave or a concave hole, or a grid can be provided in the dust storage cavity 19 to intercept dust in the airflow. The main shell 1 fixes the replaceable filter 2 through the limiting device 3, and the limiting device 3 includes a first sliding plate 302 slidingly mounted in the replaceable filter 2, the bottom of the first sliding plate 302 is provided with a first return spring 303 for pushing the first sliding plate 302 to move, and the rear end of the first sliding plate 302 is integrally formed with a limiting clamping block 301 for inserting into the main shell 1 for limiting and fixing, by sliding the first sliding plate 302 upward, the limiting clamping block 301 can be clamped into the main shell 1, and the first return spring 303 pushes the first sliding plate 302 upward to maintain the clamping state of the limiting clamping block 301, so that the replaceable filter 2 can be fixed on the main shell 1, and when the replaceable filter 2 needs to be removed, only the first sliding plate 302 needs to be slid downward, so that the limiting clamping block 301 can be released from the clamping state.

[0031] Please refer to Figure 2 、 Figure 3 and Figure 4The main motor 10 is installed at the bottom of the main shell 1, and the output end of the main motor 10 drives the first fan blade 25 inserted into the working cavity 32. The main motor 10 is provided with a heat dissipation fin 11 for heat dissipation. The first fan blade 25 can make the airflow flow in the working cavity 32, so that the airflow can fully take away the heat. In the process of rotating the first fan blade 25, the air inlet channel 17 can also suck in the air and then be sprayed out by the blowing pipe 9. In this way, the heat in the working cavity 32 can be absorbed by the airflow and then sprayed into the air by the blowing pipe 9. The end of the blowing pipe 9 sprays towards the heat dissipation fin 11. The blowing pipe 9 sprays the airflow towards the end of the heat dissipation fin 11, which can drive the airflow near the heat dissipation fin 11 to flow, thereby avoiding the accumulation of temperature due to poor airflow. The blowing pipe 9 is provided with a layer of fluff 8 for closing the blowing pipe 9 to prevent dust from entering the blowing pipe 9. The layer of fluff 8 can prevent external airflow from entering the working cavity 32 from the outside of the blowing pipe 9 in the opposite direction. The airflow in the working cavity 32 can be normally sprayed out of the blowing pipe 9 under the driving of the first fan blade 25, thereby avoiding dust pollution.

[0032] In the embodiment, the first fan blade 25 can be driven to rotate by the main motor 10, so that the external air can be sucked into the air inlet channel 17 and then sent into the working cavity 32 after being filtered by the front filter screen 16, the dust storage cavity 19 and the rear filter screen 13. The inside of the working cavity 32 is cooled and then sprayed out of the blowing pipe 9, thereby maximizing the prevention of dust from entering the working cavity 32. The replaceable filter 2 can be quickly replaced without opening the main shell, so as not to interfere with the normal work of the POE switch, thereby improving the maintainability of the POE switch and the overall reliability of the equipment. The problem of difficult heat dissipation and poor dustproof performance of the existing POE switch is solved, which can effectively improve the heat dissipation efficiency and the use reliability of the equipment.

[0033] Embodiment two: please refer to Figure 4On the basis of the first embodiment, the ash storage cavity 19 is provided with a porous adsorber 18 for adsorbing dust, and the porous adsorber 18 is formed by one or more combinations of activated carbon, microporous ceramic, and flannel bag. Other porous materials such as sponge and cotton can also be used to absorb dust. The inner wall of the ash storage cavity 19 and the inner wall of the flow guide channel 17 are both provided with an ash absorption layer, which is any one of a grease coating, a flannel adsorption layer, or a universal cleaning rubber layer. The grease coating can adhere to dust particles by using high-viscosity grease. The flannel adsorption layer can adsorb dust particles by using flannel. The universal cleaning rubber layer directly adheres to dust particles. In this way, dust particles in the airflow can be maximally intercepted by the ash storage layer and the flow guide channel 17, avoiding the dust particles from clogging the rear-end filter screen 13 or entering the working cavity 32. This further solves the problem of poor dustproof performance and difficult heat dissipation of the existing POE switch, effectively improves the heat dissipation efficiency, and improves the use reliability of the equipment.

[0034] Embodiment three: please refer to Figure 2 , Figure 3 and Figure 4On the basis of embodiment two, the top of the working cavity 32 is provided with a first partition plate 29 for isolating the air inlet 14 from the working cavity 32 and forming the air supply cavity 30, and a second partition plate 35 is fixedly installed between the working cavity 32 and the first partition plate 29, the blowing cavity 31 is formed between the first partition plate 29 and the second partition plate 35, and the output end of the main motor 10 drives the second fan blade 26 inserted into the blowing cavity 31, the first partition plate 29 is provided with at least one top through hole 28 for communicating the blowing cavity 31, and the air supply cavity 30 is provided with an air supply pipe 27 for communicating the top through hole 28 and the air inlet 14, the second partition plate 35 is provided with a middle through hole 34 for communicating the blowing cavity 31, and the working cavity 32 is provided with the flow guide heat exchange pipe 15 for communicating the middle through hole 34 and the blowing pipe 9 and for heat exchange, the flow guide heat exchange pipe 15 is integrally formed with the auxiliary heat exchange fin 33 for heat exchange between the gas in the working cavity 32 and the gas in the flow guide heat exchange pipe 15, and the working cavity 32 is provided with at least four flow guide heat exchange pipes 15. By directly connecting the blowing cavity 31 and the blowing pipe 9 through the flow guide heat exchange pipe 15, the gas flow sent into the working cavity 32 through the flow guide channel 17 can be avoided, so that the heat in the working cavity 32 is exchanged to the gas flow in the flow guide heat exchange pipe 15 through the flow guide heat exchange pipe 15 and the auxiliary heat exchange fin 33, thereby completely avoiding the direct entry of dust into the working cavity 32, and the first fan blade 25 can still drive the gas flow in the working cavity 32 to flow by rotating to improve the heat exchange efficiency, and the second fan blade 26 is used to drive the external air to be sucked into the flow guide channel 17 and then be blown out by the blowing pipe 9 by rotating. In this way, the external dust is completely avoided from entering the working cavity 32, and the heat exchange effect can be guaranteed, so that the use of the equipment in a dusty environment is effectively met, and the replaceable filter 2 can still be used to intercept and collect dust, thereby avoiding a large amount of dust from entering and depositing on the surface of the flow guide heat exchange pipe 15 to affect the heat exchange effect. Further solve the problem of difficult heat dissipation and poor dust prevention performance of the existing POE switch, can effectively improve the heat dissipation efficiency and improve the use reliability of the equipment.

[0035] Embodiment four: please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6On the basis of embodiment three, the front end of the main shell 1 is provided with a hollow shaft 23 communicating with the working cavity 32, and the hollow shaft 23 is rotatably provided with a rotating mounting frame 7, the rotating mounting frame 7 is fixedly provided with a network interface 5, and the network interface 5 is electrically connected with the main circuit board 21 through wires passing through the hollow shaft 23, the rotating mounting frame 7 is fixedly connected with a dustproof cap 6 for closing the network interface 5, the end of the hollow shaft 23 is circumferentially provided with at least four limiting grooves 24, and the rotating mounting frame 7 is slidably provided with a second sliding plate 4, the rotating mounting frame 7 is provided with a second reset spring 22 for pressing and limiting the position of the second sliding plate 4, and the end of the second sliding plate 4 is fixedly provided with a clamping rod 12 inserted into the limiting groove 24 for limiting. By changing the position of the second sliding plate 4, the clamping rod 12 can be clamped into the limiting groove 24 or separated from the limiting groove 24, the fixed state of the rotating mounting frame 7 and the main shell 1 is changed, and when the rotating mounting frame 7 is rotated to change the clamping rod 12 clamped into the limiting groove 24 in different positions, the rotating angle of the rotating mounting frame 7 can be changed, and fixed at the corresponding angle, so that the user can conveniently insert or pull out the network cable into or from the network interface 5 at the appropriate angle, and also conveniently seal the network interface 5 through the dustproof cap 6 at the appropriate angle, avoiding that the network interface 5 cannot be normally used due to too much dust deposited in the network interface 5. Further solve the problem of difficult heat dissipation and poor dustproof performance of the existing POE switch, can effectively improve the heat dissipation efficiency and improve the use reliability of the equipment.

[0036] Although the above describes the specific embodiments of the present application in order to enable a person skilled in the art to understand the present application, the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, all applications created by utilizing the concept of the present application are within the protection scope of the present application as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims.

Claims

1. A POE switch, characterized by, It includes: The main shell (1), the inside of the main shell (1) is provided with a working cavity (32) for installing the main circuit board (21), and the bottom of the working cavity (32) is provided with a blowing pipe (9) for discharging airflow in the working cavity (32); The replaceable filter (2) is inserted and installed on the left and right sides of the main shell (1), and the inside of the replaceable filter (2) is provided with a flow guide channel (17), the replaceable filter (2) is provided with a front end filter screen (16) and a rear end filter screen (13) at the front and rear ends corresponding to the flow guide channel (17) respectively, the left and right ends of the main shell (1) are provided with air inlets (14) for communicating the flow guide channel (17) and the working cavity (32), and the replaceable filter (2) is provided with at least one dust storage cavity (19) communicating with the flow guide channel (17), and the dust storage cavity (19) and the flow guide channel (17) are provided with a spoiler (20) for disturbing the airflow in the dust storage cavity (19) and the flow guide channel (17); The main motor (10) is installed at the bottom of the main shell (1), and the output end of the main motor (10) drives a first fan blade (25) inserted into the working cavity (32).

2. The POE switch of claim 1, wherein: The main shell (1) is fixed with the replaceable filter (2) through the limiting device (3), and the limiting device (3) includes a first sliding plate (302) slidingly installed in the replaceable filter (2), the bottom of the first sliding plate (302) is provided with a first return spring (303) for pushing the first sliding plate (302) to move, and the rear end of the first sliding plate (302) is integrally formed with a limiting block (301) for inserting into the main shell (1) for limiting and fixing.

3. The POE switch of claim 1, wherein: The main motor (10) is provided with a heat sink (11) for heat dissipation, and the end of the blowing pipe (9) is blown towards the heat sink (11), and the blowing pipe (9) is provided with a fluff layer (8) for closing the blowing pipe (9) to prevent dust from entering the blowing pipe (9).

4. The POE switch of claim 1, wherein: The dust storage cavity (19) is provided with a porous adsorber (18) for adsorbing dust, and the porous adsorber (18) is formed by one or more combinations of activated carbon, microporous ceramic and flannel bag.

5. The POE switch of claim 4, wherein: The inner wall of the dust storage cavity (19) and the inner wall of the flow guide channel (17) are provided with a dust absorption layer, and the dust absorption layer is any one of grease coating, fluff adsorption layer or all-purpose cleaning gel layer.

6. The POE switch of claim 1, wherein: The top of the working cavity (32) is provided with a first partition plate (29) for isolating the air inlet (14) from the working cavity (32) and forming a flow feeding cavity (30), and a second partition plate (35) is fixedly installed between the working cavity (32) and the first partition plate (29), a blowing cavity (31) is formed between the first partition plate (29) and the second partition plate (35), and the output end of the main motor (10) drives a second fan blade (26) inserted into the blowing cavity (31), at least one top through hole (28) for communicating the blowing cavity (31) is arranged on the first partition plate (29), and a flow feeding pipe (27) for communicating the top through hole (28) and the air inlet (14) is arranged in the flow feeding cavity (30), a middle through hole (34) for communicating the blowing cavity (31) is arranged on the second partition plate (35), and a flow guide heat exchange pipe (15) for communicating the middle through hole (34) and the blowing pipe (9) and for heat exchange is arranged in the working cavity (32).

7. The POE switch of claim 6, wherein: The flow guide heat exchange pipe (15) is integrally formed with an auxiliary heat exchange fin (33) for heat exchange between the gas in the working cavity (32) and the gas in the flow guide heat exchange pipe (15), and at least four flow guide heat exchange pipes (15) are arranged in the working cavity (32).

8. The POE switch of claim 1, wherein: The front end of the main housing (1) is provided with a hollow shaft (23) communicating with the working cavity (32), and a rotating mounting bracket (7) is rotatably mounted on the hollow shaft (23), a network interface (5) is fixedly mounted on the rotating mounting bracket (7), and the network interface (5) is electrically connected with the main circuit board (21) through a lead wire passing through the hollow shaft (23), and a dustproof cap (6) for closing the network interface (5) is fixedly connected to the rotating mounting bracket (7).

9. The POE switch of claim 8, wherein: The end of the hollow shaft (23) is circumferentially arranged with at least four limiting grooves (24), and a second sliding plate (4) is slidingly installed in the rotating mounting bracket (7), a second return spring (22) for pressing the position of the second sliding plate (4) is installed on the rotating mounting bracket (7), and a clamping rod (12) fixedly installed at the end of the second sliding plate (4) is inserted into the limiting groove (24) for limiting.

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