Multi-interface access digital stored program control switch

Abstract

The invention discloses a multi-interface access digital stored program control switch, and relates to the technical field of switches, the multi-interface access digital stored program control switch comprises a switch main body, the surface of the switch main body is provided with heat dissipation holes I, the inner cavity of the switch main body is fixedly connected with a circuit board, and the inner cavity of the switch main body is provided with a heat dissipation fan; when the temperature sensor in the circuit board detects that the temperature of the circuit board rises, the outer extension shell extends towards the two sides, so that air can enter the switch main body from the second heat dissipation holes, the air inlet area of the bottom of the switch main body is increased, and the situation that an air inlet in the bottom of the switch main body is too small to cause overheating is avoided; and when the temperature sensor in the circuit board detects that the temperature of the circuit board is reduced to a normal value, the outer extension shell shrinks, so that the air inlet area at the bottom of the switch main body is reduced to the initial area, and the situation that the air inlet at the bottom of the switch main body is too large, so that more moisture in a low-temperature environment enters the switch main body is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of switches, and in particular to a digital program-controlled switch with multi-interface access. Background Art

[0002] A digital program-controlled exchange with multiple interfaces is a program-controlled exchange device that supports multiple types of interfaces. It is designed to achieve flexible access and exchange of telephone, data and multimedia signals. It is widely used in telecommunications, Internet service providers (ISPs) and enterprise networks.

[0003] The existing digital program-controlled switches have a fixed number of heat dissipation holes. During the high-intensity operation of the digital program-controlled switches, the internal temperature increases extremely. Therefore, the fixed number of heat dissipation holes will lead to poor heat dissipation effect due to the limited number and the adhesion of dust at the heat dissipation holes. The volume of the existing digital program-controlled switch housing is of a fixed size, and the internal heat of the digital program-controlled switch cannot be discharged faster by changing the volume size. Therefore, the design of the existing digital program-controlled switch housing cannot effectively and quickly discharge the internal heat under special circumstances. At the same time, if the existing digital program-controlled switch housing is designed to be larger and has more heat dissipation holes, and the same state is maintained all the time, it will make it easier for dust to enter the switch, and more moisture in the external air will enter the digital program-controlled switch;

[0004] In order to solve the above problems, the inventor proposed a digital program-controlled switch with multi-interface access. Summary of the invention

[0005] In order to solve the above technical problems, a digital program-controlled switch with multi-interface access is provided. The technical solution solves the problems of switch overheating and dust cleaning proposed in the above background technology.

[0006] To achieve the above objectives, the present invention can be implemented by the following technical solutions:

[0007] The present invention provides a digital program-controlled switch with multi-interface access, comprising a switch body, wherein the upper and lower end surfaces of the switch body are respectively provided with a plurality of heat dissipation holes at equal distances, a circuit board is fixedly connected to the inner cavity of the switch body, an interface module and an indicator light module are arranged on the circuit board, a temperature sensor is installed on the circuit board, a heat dissipation fan is installed in the inner cavity of the switch body, and no less than two heat dissipation fans are arranged;

[0008] A telescopic component is arranged in the switch body, and the telescopic component includes telescopic slots opened on both sides of the switch body, and two telescopic slots are arranged. An outer shell is slidably connected in the telescopic slot, and two heat dissipation holes are respectively opened on the upper and lower end surfaces of the outer shell. A vertical plate is fixedly connected to the inner cavity of the switch body, and a horizontal plate is fixedly connected to the surface of the vertical plate. Two horizontal plates are arranged. A bending plate is fixedly connected to the inner cavity of the switch body, and two bending plates are arranged. A servo motor is fixedly connected to the lower part of the vertical plate, and a gear is fixedly connected to the output shaft of the servo motor, and the outer side of the gear is meshingly connected with rack one and rack two.

[0009] Preferably, the transverse plate is fixedly connected to the switch body, the curved plate is curved, and an electrostatic coating is provided on the inner side of the curved plate.

[0010] Preferably, the servo motor is electrically controlled and connected to the temperature sensor on the circuit board, the gear is rotationally connected to the switch body, the rack 1 and the rack 2 are slidingly connected to the switch body respectively, and the rack 1 and the rack 2 are fixedly connected to the two outer shells respectively.

[0011] Preferably, a guide assembly is provided in the switch body, and the guide assembly includes a connecting plate 1 fixedly connected to an outer shell, the connecting plate 1 is rotatably connected to a connecting rod on a side close to the circuit board, and two connecting rods are provided, and the two connecting rods are rotatably connected to connecting blocks at one end away from the connecting plate 1, and a guide cover is fixedly connected to the side of the connecting block away from the connecting rod, and no less than two guide covers are provided, and two groups of sliders are fixedly connected to the upper surfaces of the two guide covers, and each group of sliders is provided with two sliders, and a slide plate is slidably connected to the sliders.

[0012] Preferably, the guide cover is made of copper, the slider is in a "T" shape, the number of the slide plates is consistent with the number of the slide plates, and the slide plates are fixedly connected to the switch body.

[0013] Preferably, a trigger assembly is provided in the switch body, and the trigger assembly includes a fixing frame fixedly connected to an outer shell, a fixing plate fixedly connected to the upper surface of the fixing frame, a compression spring fixedly connected to the inner cavity of the fixing plate, a slide board slidably connected to the inner cavity of the fixing plate, a limiting column fixedly connected to the upper surface of the slide board, a disc rotatably connected to the upper surface of the fixing plate, a rotating plate fixedly connected to the upper surface of the disc, a limiting block fixedly connected to the outer wall of the rotating plate at equal intervals in an annular manner, and no less than five limiting blocks are provided, an infrared sensor is provided on the upper surface of the rotating plate, a receiver is provided on the curved plate close to the rotating plate, a bracket is fixedly connected to the inner cavity of the switch body, a limiting claw is rotatably connected to the upper surface of the bracket, and a spring is fixedly connected to the outer wall of the limiting claw.

[0014] Preferably, the compression spring is fixedly connected to the slide plate, the disc surface is provided with triangular inner grooves at equal intervals in an annular shape, and there are no less than five triangular inner grooves, and the disc is matched with the grooves on the limiting column.

[0015] Preferably, the rotating plate is in a pentagonal shape, and the receiver is electrically controlled and connected to the cooling fan.

[0016] Preferably, the limiting claw is slidably connected to the rotating plate, the limiting claw is abuttingly connected to the limiting block, and the spring is fixedly connected to the bracket.

[0017] From the above, the advantages of the present invention are:

[0018] By extending and retracting the outer shell, the space of the switch body is adjusted and the air intake is increased. Compared with the prior art method in which the air intake of the switch body is set to a fixed size, when the temperature sensor in the circuit board detects that the temperature of the circuit board increases, the outer shell extends to both sides, so that air can enter the interior of the switch body from the heat dissipation hole 2, thereby increasing the air intake area at the bottom of the switch body, avoiding the situation where the air intake at the bottom of the switch body is set too small and overheating occurs. When the temperature sensor in the circuit board detects that the temperature of the circuit board drops to a normal value, the outer shell shrinks, so that the air intake area at the bottom of the switch body is reduced to the initial area, avoiding the bottom of the switch body The air inlet is set too large, causing more moisture in a low temperature environment to enter the switch body. By reducing the internal space of the switch body, the dust that enters due to excessive ventilation under normal operating temperature conditions is reduced. By enlarging and reducing the internal space of the switch body according to the temperature conditions, the internal hot air can be effectively discharged quickly, reducing the problems of sluggishness and damage caused by temperature during operation. At the same time, a bent plate is set to change the internal heat dissipation channels and internal space of the existing switch body, so that the incoming air can effectively take away more hot air. At the same time, the existing switch body shell structure is changed to effectively control the amount of external air entering in a scalable form.

[0019] The electrostatic coating provided at the bent part of the bent plate can absorb dust in the air sucked into the switch body. Compared with the method of using a filter in the prior art, the electrostatic coating provided in the device has a stronger dust absorption capacity, which reduces the cleaning frequency and avoids the filter being blocked by dust quickly, resulting in more frequent replacement or cleaning. The bent plate and the cross plate form a curved air inlet duct, which reduces the resistance to air flow. When air is sucked in and passes through the duct, the flow path is relatively smooth, reducing the pressure drop caused by the blockage of the filter, thereby improving the airflow efficiency and facilitating the heat dissipation of the circuit board in the switch body.

[0020] By fitting the two guide covers together, a guide duct is formed to guide the inhaled air to the surface of the circuit board, thereby further improving the heat dissipation effect of the heating elements on the surface of the circuit board. Compared with the prior art, which only adopts the method of installing a fan at the bottom of the switch body, the device uses the guide duct formed by the guide cover to make up for the unstable airflow problem existing in the traditional air-cooling heat dissipation technology, ensure that the key areas of the circuit board surface heat dissipation are cooled more, and the heat dissipation efficiency is greatly improved. At the same time, due to the guidance of the guide duct, it is avoided to increase the rotation speed of the cooling fan to obtain a large amount of air. In this way, the cooling fan can operate at a relatively low load, reducing the energy consumption of the equipment. At the same time, it changes the wind direction of the existing switch body fan structure, effectively increasing the wind blown by the fan to guide the circuit board to a wider range.

[0021] The periodic rotation of the infrared sensor triggers the cooling fan to reverse and clean the dust adsorbed by the electrostatic coating. Compared with the prior art method that requires manual use of tools to clean dust, the device utilizes the cooperation of infrared sensors and receivers to achieve precise cleaning time control. This mechanism can ensure that the cleaning process is triggered at the appropriate time to avoid excessive or insufficient cleaning frequency, and there is no need to shut down for manual cleaning. The switch body can remain online for a longer time, thereby improving the overall operating efficiency and utilization of the switch body. By changing the direction of the fan blowing inside the switch body, the dust inside can be effectively blown out. Changing the direction of the fan inside the existing switch body avoids the problem of blockage in the air outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front perspective schematic diagram of the overall structure shown in the present invention;

[0023] Figure 2 It is a three-dimensional schematic diagram of the back of the overall structure shown in the present invention;

[0024] Figure 3 It is a three-dimensional schematic diagram of the interior of the switch body shown in the present invention;

[0025] Figure 4 It is an exploded stereoscopic schematic diagram of the telescopic slot and the outer shell shown in the present invention;

[0026] Figure 5 It is a three-dimensional schematic diagram of the circuit board and the heat dissipation fan related components shown in the present invention;

[0027] Figure 6 It is a three-dimensional schematic diagram of the components related to the horizontal plate and the curved plate shown in the present invention;

[0028] Figure 7 It is a three-dimensional schematic diagram of the related parts of rack 1 and rack 2 shown in the present invention;

[0029] Figure 8 It is a three-dimensional schematic diagram of the connecting rod and the connecting block related parts shown in the present invention;

[0030] Fig. 9 It is a three-dimensional schematic diagram of the interior of the slide plate shown in the present invention;

[0031] Fig.10 It is a three-dimensional schematic diagram of the guide assembly shown in the present invention;

[0032] Fig.11 It is a plan view of the trigger component shown in the present invention;

[0033] Fig.12 It is a three-dimensional schematic diagram of the infrared sensor and receiver related components shown in the present invention;

[0034] Fig.13 It is an exploded three-dimensional schematic diagram of the rotating plate and the limiting claw shown in the present invention;

[0035] Fig.14 It is an exploded stereoscopic schematic diagram of the disc and the rotating plate shown in the present invention.

[0036] Among them, the accompanying drawings in the present invention are:

[0037] 1. Switch body; 2. Heat dissipation hole 1; 3. Circuit board; 4. Cooling fan;

[0038] Telescopic assembly: 51, telescopic slot; 52, outer shell; 53, heat dissipation hole 2; 54, vertical plate; 55, horizontal plate; 56, bending plate; 57, servo motor; 58, gear; 59, rack 1; 510, rack 2;

[0039] Guide assembly: 61, connecting plate 1; 62, connecting rod; 63, connecting block; 64, guide cover; 65, slider; 66, slide plate;

[0040] Trigger assembly: 71, fixing frame; 72, fixing plate; 73, compression spring; 74, slide plate; 75, limiting column; 76, disc; 77, rotating plate; 78, limiting block; 79, infrared sensor; 7901, receiver; 710, bracket; 711, limiting claw; 712, spring. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] See also Figures 1 to 14As shown, an embodiment of the present invention is provided, and a digital program-controlled switch with multi-interface access is described in detail below:

[0043] Embodiment 1:

[0044] A digital program-controlled switch with multiple interfaces, such as Figures 1 to 3 As shown, it includes a switch body 1, and the upper surface and the lower surface of the switch body 1 are respectively provided with a plurality of heat dissipation holes 2 at equal intervals. A circuit board 3 is fixedly connected to the inner cavity side wall of the switch body 1, and an interface module and an indicator light module are arranged on the circuit board 3. The interface module is used to connect the inserted network cable, and the indicator light module is used to prompt the working status of the network cable. A temperature sensor is installed on the circuit board 3, and heat dissipation fans 4 are symmetrically installed on the inner cavity side wall of the switch body 1. No less than two heat dissipation fans 4 are arranged, and the heat dissipation fans 4 are all located directly below the circuit board 3;

[0045] like Figures 3 to 7 As shown, a telescopic component is provided in the switch body 1, and the telescopic component includes telescopic slots 51 opened on both sides of the switch body 1, and the telescopic slots 51 are symmetrically arranged with no less than two, and an outer shell 52 is slidably connected in the telescopic slot 51, and the upper and lower end surfaces of the outer shell 52 are respectively provided with heat dissipation holes 2 53, and when the outer shell 52 is inserted into the telescopic slot 51, the heat dissipation holes 2 53 correspond to the heat dissipation holes 1 2, and the bottom surface of the inner cavity of the switch body 1 is fixedly connected with a vertical plate 54, and the vertical plate 54 is located in the middle of the two heat dissipation fans 4, and the vertical plate 54 is connected to the switch body 1. The inner cavity of the machine body 1 has the same size, and the two side surfaces of the vertical plate 54 are fixedly connected with the horizontal plate 55, and at least two horizontal plates 55 are symmetrically arranged. The side wall of the inner cavity of the switch body 1 is fixedly connected with the curved plate 56, and at least two curved plates 56 are symmetrically arranged. A servo motor 57 is fixedly connected to the lower part of the vertical plate 54, and the output shaft of the servo motor 57 is fixedly connected to the gear 58. The outer side of the gear 58 is respectively meshed with a rack 1 59 and a rack 2 510, and the rack 1 59 and the rack 2 510 penetrate the vertical plate 54 and are slidably connected.

[0046] Further, such as Figure 6 As shown, the transverse plate 55 is fixedly connected to the side wall of the switch body 1, the transverse plate 55 has the same size as the inner cavity of the switch body 1, the shape of the bent plate 56 is curved, the transverse plate 55 is located at the bending part of the bent plate 56, and an electrostatic coating is provided on one side of the bent plate 56 close to the transverse plate 55, and the electrostatic coating is used to absorb dust in the air sucked into the inside of the switch body 1.

[0047] Further, such as Figure 7As shown, the servo motor 57 is electrically controlled and connected to the temperature sensor on the circuit board 3, the gear 58 is rotationally connected to the bottom surface of the inner cavity of the switch body 1, the rack 1 59 and the rack 2 510 are respectively slidably connected to the bottom surface of the inner cavity of the switch body 1, and the rack 1 59 and the rack 2 510 are respectively fixedly connected to the two outer shells 52.

[0048] Further, such as Figures 8 to 11 As shown, a guide component is provided in the switch body 1, and the guide component includes a connecting plate 61 fixedly connected to an outer shell 52, and the connecting plate 61 is located in the middle of the inner side of one of the outer shells 52. The connecting plate 61 is rotatably connected to a connecting rod 62 on the side close to the circuit board 3, and at least two connecting rods 62 are symmetrically arranged. The ends of the two connecting rods 62 away from the connecting plate 61 are respectively rotatably connected to connecting blocks 63, and the connecting blocks 63 are fixedly connected to the side away from the connecting rod 62 with guide covers 64. At least two guide covers 64 are arranged, and the two guide covers 64 are respectively located above the interface module and the indicator light module on the circuit board 3. The two guide covers 64 are fixedly connected to the side away from the circuit board 3 with two groups of sliders 65, and each group of sliders 65 is provided with two sliders. The sliders 65 are slidably connected with slide plates 66, and the slide plates 66 are located above the sliders 65.

[0049] Further, such as Fig. 9 and Fig.10 As shown, the guide cover 64 is made of copper, which can dissipate heat better. The slider 65 is in a "T" shape. The number of the slide plates 66 is consistent with the number of the slide plates 65. The slide plates 66 are fixedly connected to the top surface of the inner cavity of the switch body 1.

[0050] When working:

[0051] Initial limitation: The temperature sensor in the circuit board 3 is preset with a temperature value. When the temperature detected is higher than the preset value, the output shaft of the servo motor 57 rotates forward. When the temperature detected returns to the preset value, the output shaft of the servo motor 57 rotates reversely.

[0052] The staff connects the power supply of the switch body 1, so that the circuit board 3 in the switch body 1 enters the working state. The circuit board 3 controls the heat dissipation fan 4 to rotate forward, sucking air from the heat dissipation hole 1 2 opened on the lower surface of the switch body 1 into the inside of the switch body 1, and then exhausting it from the heat dissipation hole 1 2 opened on the upper surface of the switch body 1, thereby dissipating the heat of the circuit board 3;

[0053] When the operating temperature of the circuit board 3 increases, the device can increase the air intake, thereby better discharging the hot steam accumulated in the switch body 1. The detailed steps are as follows:

[0054] As the circuit board 3 continues to run, more and more heat is accumulated in the switch body 1, and the forward rotation of the heat dissipation fan 4 can no longer provide effective heat dissipation. At this time, when the temperature sensor in the circuit board 3 detects that the temperature of the circuit board 3 is greater than the preset value, the output shaft of the servo motor 57 is controlled to rotate forward. During the forward rotation of the output shaft of the servo motor 57, the output shaft of the servo motor 57 drives the gear 58 to rotate forward. The forward rotation of the gear 58 drives the rack 1 59 and the rack 2 510 to drive the outer shell 52 connected to each other to move away from the gear 58 and move horizontally along the telescopic slot 51 until the heat dissipation holes 2 53 opened on the upper and lower surfaces of the outer shell 52 are completely removed from the telescopic slot 51 and exposed to the air. At this time, the output shaft of the servo motor 57 stops rotating.

[0055] Subsequently, air is sucked into the switch body 1 by the heat dissipation fan 4 from the heat dissipation hole 1 2 opened on the lower surface of the switch body 1 and the heat dissipation hole 2 53 opened on the lower surface of the outer shell 52. After being sucked into the switch body 1, the air passes through the curved pipe composed of the horizontal plate 55 and the curved plate 56, and the dust in the air is adsorbed by the electrostatic coating provided at the curved part of the curved plate 56, and then discharged from the heat dissipation fan 4, so that the circuit board 3 is blown as a whole, and the hot air generated by the circuit board 3 inside the switch body 1 is blown out of the inside of the switch body 1 through the heat dissipation hole 1 2 opened on the upper surface of the switch body 1 and the heat dissipation hole 2 53 opened on the upper surface of the outer shell 52;

[0056] When the temperature sensor in the circuit board 3 detects that the temperature on the surface of the circuit board 3 drops to a preset value, a signal is sent to the servo motor 57, so that the output shaft of the servo motor 57 is reversed. During the reversal of the output shaft of the servo motor 57, the output shaft of the servo motor 57 drives the gear 58 to reverse. The reversal of the gear 58 drives the rack 1 59 and the rack 2 510 to drive the outer shell 52 connected to each other to move horizontally along the telescopic slot 51 in the direction close to the gear 58 until the heat dissipation hole 2 53 opened on the upper and lower surfaces of the outer shell 52 completely enters the telescopic slot 51, that is, the outer shell 52 returns to the initial position, and the output shaft of the servo motor 57 stops rotating.

[0057] In the above process, the space of the switch body 1 is adjusted and the air intake is increased by extending and retracting the outer shell 52. Compared with the prior art in which the air inlet of the switch body 1 is set to a fixed size, when the temperature sensor in the circuit board 3 detects that the temperature of the circuit board 3 increases, the outer shell 52 extends to both sides, so that air can enter the interior of the switch body 1 from the heat dissipation hole 2 53, thereby increasing the air intake area at the bottom of the switch body 1, avoiding the situation where the air inlet at the bottom of the switch body 1 is set too small and overheating occurs. When the temperature sensor in the circuit board 3 detects that the temperature of the circuit board 3 drops to a normal value, the outer shell 52 shrinks, so that the air intake area at the bottom of the switch body 1 is reduced to the initial area, avoiding The air inlet at the bottom of the switch body 1 is prevented from being set too large, so that more moisture in a low temperature environment enters the switch body 1, and the internal space of the switch body 1 is reduced to reduce the dust from entering due to excessive ventilation under normal operating temperature conditions. By enlarging and reducing the internal space of the switch body 1 according to the temperature conditions, the internal hot air can be effectively discharged quickly, and the problems of sluggishness and damage caused by temperature during operation can be reduced. At the same time, a bending plate 56 is provided to change the internal heat dissipation channels and internal space of the existing switch body 1, so that the incoming air can effectively take away more hot air. At the same time, the shell structure of the existing switch body 1 is changed, and the amount of external air entering can be effectively controlled in a scalable form.

[0058] In the above process, the electrostatic coating provided at the bent part of the bent plate 56 is used to absorb the dust in the air sucked into the switch body 1. Compared with the method of using a filter in the prior art, the electrostatic coating provided in the present device has a stronger dust absorption capacity, which reduces the cleaning frequency and avoids the filter being blocked by dust quickly, resulting in more frequent replacement or cleaning. In addition, the bent plate 56 and the cross plate 55 form a curved air inlet duct to reduce the resistance to air flow. When air is sucked in and passes through the duct, the flow path is relatively smooth, reducing the pressure drop caused by the blockage of the filter, thereby improving the airflow efficiency and facilitating the heat dissipation of the circuit board 3 in the switch body 1.

[0059] The device can guide the gas sucked into the switch body 1 to the surface of the circuit board 3 to enhance the heat dissipation of the circuit board 3. The detailed steps are as follows:

[0060] When the outer shell 52 is extended, the outer shell 52 and the connecting plate 1 61 move horizontally along the telescopic slot 51 in a direction away from the switch body 1. During the movement of the outer shell 52, the connecting plate 1 61 pulls the connecting rod 62 and the connecting block 63, so that the guide cover 64 and the slider 65 move horizontally along the slide plate 66 in a direction close to each other. When the outer shell 52 stops extending, the two guide covers 64 fit together.

[0061] When the two guide covers 64 are attached to each other, since one end of the guide cover 64 is located above the heat dissipation fan 4, part of the air sucked into the switch body 1 by the heat dissipation fan 4 will be guided to the surface of the circuit board 3 by the two guide covers 64 attached to each other, thereby dissipating the heat of the circuit board 3 and the electronic components on the surface;

[0062] When the outer shell 52 is retracted, the outer shell 52 and the connecting plate 1 61 move horizontally along the telescopic slot 51 toward the side of the switch body 1. During the movement of the outer shell 52, the connecting plate 1 61 pushes the connecting rod 62 and the connecting block 63, so that the guide cover 64 and the slider 65 move horizontally along the slide plate 66 in the direction away from each other. When the outer shell 52 stops extending, the two guide covers 64 return to the initial position. The two guide covers 64 in the separated state will not guide the air to the surface of the circuit board 3, so that the normal air flow in the switch body 1 is restored, and the uniform heat dissipation of the circuit board 3 and the interface module and the indicator light module is restored. The two guide covers 64 are displaced toward both sides so that the circuit board 3 is completely leaked, and then the internal moisture is effectively discharged by the expansion of the two guide covers 64. Compared with the shell of the existing switch body 1, the internal space is smaller, so that the internal moisture cannot be discharged quickly, which will affect the service life of the circuit board 3.

[0063] In the above process, the two guide covers 64 are fitted together to form a guide duct, which guides the inhaled air to the surface of the circuit board 3, further improving the heat dissipation effect of the heating elements on the surface of the circuit board 3. Compared with the prior art, which only uses the method of installing a fan at the bottom of the switch body 1, the device uses the guide duct formed by the guide cover 64 to make up for the unstable air flow problem existing in the traditional air-cooling heat dissipation technology, ensuring that the key areas of the surface of the circuit board 3 for heat dissipation are more cooled, greatly improving the heat dissipation efficiency. At the same time, due to the guidance of the guide duct, it is avoided to increase the rotation speed of the cooling fan 4 to obtain a large amount of air. In this way, the cooling fan 4 can operate at a relatively low load, reducing the energy consumption of the equipment. At the same time, it changes the wind direction of the fan structure of the existing switch body 1, effectively increasing the wind blown by the fan to guide the circuit board 3 in a wider range.

[0064] Embodiment 2:

[0065] Further, such as Figures 11 to 14As shown, a trigger assembly is provided in the switch body 1, and the trigger assembly includes a fixing frame 71 fixedly connected to an outer shell 52, the fixing frame 71 is located on the upper surface of the outer shell 52, a fixing plate 72 is fixedly connected to the side of the fixing frame 71 away from the outer shell 52, a compression spring 73 is fixedly connected to the inner side wall of the fixing plate 72, a slide plate 74 is slidably connected to the inner cavity of the fixing plate 72, a limit column 75 is fixedly connected to the side of the slide plate 74 away from the fixing frame 71, a disc 76 is rotatably connected to the side of the fixing plate 72 away from the fixing frame 71, a rotating plate 77 is fixedly connected to the side of the rotating plate 77 away from the fixing frame 71, and the rotating plate 77 is fixedly connected to the rotating plate 77. 7 is concentrically connected to the disk 76, the outer wall of the rotating plate 77 is annularly and equidistantly fixedly connected to the limiting blocks 78, and there are no less than five limiting blocks 78. An infrared sensor 79 is arranged on the side of the rotating plate 77 away from the disk 76, and a receiver 7901 is arranged on the curved plate 56 close to the rotating plate 77. The inner cavity wall of the switch body 1 is fixedly connected to a bracket 710, and the bracket 710 is located at the lower part of the curved plate 56. The upper surface of the bracket 710 is rotatably connected to the limiting claw 711, and the limiting claw 711 is close to the outer wall of the rotating plate 77. The outer wall of the limiting claw 711 is fixedly connected to a spring 712, and the spring 712 is in a compressed state.

[0066] Further, such as Fig.14 As shown, one end of the compression spring 73 away from the fixed plate 72 is fixedly connected to the slide plate 74, and the surface of the disk 76 is provided with triangular inner grooves at equal intervals in an annular shape, and there are no less than five triangular inner grooves. The disk 76 is adapted to the grooves on the limiting column 75, and part of the limiting column 75 is located in one of the triangular inner grooves.

[0067] Further, such as Fig.12 and Fig.14 As shown, the shape of the rotating plate 77 is a pentagon, and five limit blocks 78 are respectively located on each side of the rotating plate 77, and the receiver 7901 is electrically controlled and connected to the heat dissipation fan 4.

[0068] Further, such as Fig.13 As shown, the limiting claw 711 is slidably connected to the outer wall of the rotating plate 77 , the limiting claw 711 is abutted against the limiting block 78 , and one end of the spring 712 away from the limiting claw 711 is fixedly connected to the bracket 710 .

[0069] When working:

[0070] The device can make the heat dissipation fan 4 rotate in the opposite direction, so as to blow the adsorbed dust out of the interior of the switch body 1. The detailed steps are as follows:

[0071] When the outer shell 52 is extended, the outer shell 52 moves horizontally along the telescopic slot 51 in a direction away from the switch body 1, and the rotating plate 77 moves together with the outer shell 52 in a direction away from the limiting claw 711, so that the rotating plate 77 and the limiting block 78 gradually leave the limiting claw 711;

[0072] When the rotating plate 77 moves horizontally, the outer wall of the rotating plate 77 squeezes the limiting claw 711, so that the limiting claw 711 rotates clockwise with the rotating connection with the bracket 710 as the axis, thereby squeezing the spring 712, so that the spring 712 is compressed. When the rotating plate 77 and the limiting block 78 completely leave the limiting claw 711, the limiting claw 711 is no longer limited by the rotating plate 77. With the help of the rebound of the spring 712, the limiting claw 711 rotates counterclockwise with the rotating connection with the bracket 710 as the axis until the spring 712 is extended to a normal state, and the limiting claw 711 stops rotating.

[0073] When the outer shell 52 is retracted, the outer shell 52 moves horizontally along the telescopic slot 51 toward the side close to the switch body 1. During this process, the end of the limit claw 711 close to the spring 712 contacts the vertical surface of the limit block 78. As the outer shell 52 and the rotating plate 77 continue to move horizontally, the limit claw 711 pushes the limit block 78, so that the rotating plate 77 and the disc 76 rotate counterclockwise around the rotating connection with the fixing frame 71 as the axis.

[0074] When the locking cam 75 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 73 is in the unlocking state, so that the locking cam 73 is unlocked and the locking cam 73 is unlocked.

[0075] When the disc 76 rotates counterclockwise by 72 degrees, the rotating plate 77 also rotates by 72 degrees, and the position of the rotating plate 77 after the rotation coincides with the position before the rotation. In the process of the rotating plate 77 rotating counterclockwise by 72 degrees, the outer wall of the rotating plate 77 gradually squeezes the limiting claw 711, so that the limiting claw 711 rotates clockwise with the rotating connection with the bracket 710 as the axis, and squeezes the spring 712, so that the spring 712 is compressed, and further the limiting claw 711 and the spring 712 return to the initial position, at which time the limiting claw 711 is tightly against the outer wall of the rotating plate 77;

[0076] It can be seen from the above steps that every time the outer extension shell 52 is extended or retracted, the infrared sensor 79 on the rotating plate 77 will rotate seventy-two degrees counterclockwise. When the infrared sensor 79 on the rotating plate 77 rotates to the bottom of the receiver 7901, the receiver 7901 receives the signal of the infrared sensor 79 and controls the cooling fan 4 through the controller, so that the cooling fan 4 stops rotating forward and reverses for one minute. During the reversal of the cooling fan 4, the dust adsorbed by the electrostatic coating at the bending part of the bending plate 56 is blown away from the bending plate 56 and blown out of the switch body 1.

[0077] In the above process, the periodic rotation of the infrared sensor 79 triggers the heat dissipation fan 4 to reverse and clean the dust adsorbed by the electrostatic coating. Compared with the prior art, which requires manual use of tools to clean the dust, the device uses the cooperation of the infrared sensor 79 and the receiver 7901 to achieve precise cleaning time control. This mechanism can ensure that the cleaning process is triggered at the appropriate time to avoid excessive or insufficient cleaning frequency, and there is no need to stop for manual cleaning. The switch body 1 can remain online for a longer time, thereby improving the overall operating efficiency and utilization of the switch body 1. By changing the direction of the fan blowing in the switch body 1, the dust inside it can be effectively blown out. Changing the direction of the fan inside the existing switch body 1 avoids the problem of blockage of the air outlet.

[0078] The above descriptions are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A digital program-controlled switch with multiple interfaces, comprising a switch body (1), wherein the upper and lower end surfaces of the switch body (1) are respectively provided with a plurality of heat dissipation holes (2) at equal distances, characterized in that: A circuit board (3) is fixedly connected to the inner cavity of the switch body (1), an interface module and an indicator light module are arranged on the circuit board (3), a temperature sensor is installed on the circuit board (3), and a heat dissipation fan (4) is installed in the inner cavity of the switch body (1), and at least two heat dissipation fans (4) are arranged; The switch body (1) is provided with a telescopic component, the telescopic component comprising telescopic slots (51) provided on both sides of the switch body (1), the telescopic slots (51) being provided with two, an outer shell (52) being slidably connected in the telescopic slot (51), the upper and lower end surfaces of the outer shell (52) being provided with two heat dissipation holes (53), the inner cavity of the switch body (1) being fixedly connected with a vertical plate (54), the surface of the vertical plate (54) being fixedly connected with a horizontal plate (55), the horizontal plates (55) being provided with two, the inner cavity of the switch body (1) being fixedly connected with a bending plate (56), the bending plates (56) being provided with two, the lower part of the vertical plate (54) being fixedly connected with a servo motor (57), the output shaft of the servo motor (57) being fixedly connected with a gear (58), the outer side of the gear (58) being meshingly connected with a rack 1 (59) and a rack 2 (510).

2. A digital program-controlled switch with multiple interfaces according to claim 1, characterized in that: The transverse plate (55) is fixedly connected to the switch body (1); the curved plate (56) is curved in shape; and an electrostatic coating is provided on the inner side of the curved plate (56).

3. A digital program-controlled switch with multiple interfaces according to claim 1, characterized in that: The servo motor (57) is electrically controlled and connected to the temperature sensor on the circuit board (3); the gear (58) is rotationally connected to the switch body (1); the rack one (59) and the rack two (510) are respectively slidably connected to the switch body (1); and the rack one (59) and the rack two (510) are respectively fixedly connected to the two outer shells (52).

4. A digital program-controlled switch with multiple interfaces according to claim 1, characterized in that: A guide assembly is provided in the switch body (1), and the guide assembly includes a connecting plate (61) fixedly connected to an outer shell (52); a connecting rod (62) is rotatably connected to a side of the connecting plate (61) close to the circuit board (3); two connecting rods (62) are provided, and one end of the two connecting rods (62) away from the connecting plate (61) is rotatably connected to a connecting block (63) respectively; a side of the connecting block (63) away from the connecting rod (62) is fixedly connected to a guide cover (64); at least two guide covers (64) are provided, and two groups of sliders (65) are fixedly connected to the upper surfaces of the two guide covers (64), and each group of sliders (65) is provided with two sliders, and a slide plate (66) is slidably connected to the sliders (65).

5. A digital program-controlled switch with multiple interfaces according to claim 4, characterized in that: The guide cover (64) is made of copper, the slider (65) is in a "T" shape, the number of the slide plates (66) is the same as the number of the slide plates (65), and the slide plates (66) are fixedly connected to the switch body (1).

6. A digital program-controlled switch with multiple interfaces according to claim 1, characterized in that: The switch body (1) is provided with a trigger assembly, the trigger assembly comprising a fixing frame (71) fixedly connected to an outer shell (52), the upper surface of the fixing frame (71) is fixedly connected to a fixing plate (72), the inner cavity of the fixing plate (72) is fixedly connected to a compression spring (73), the inner cavity of the fixing plate (72) is slidably connected to a slide plate (74), the upper surface of the slide plate (74) is fixedly connected to a limiting column (75), the upper surface of the fixing plate (72) is rotatably connected to a disc (76), and the upper surface of the disc (76) is fixedly connected to a rotating spring (73). The rotating plate (77) is provided with a rotating plate (77), the outer wall of the rotating plate (77) is annularly and equidistantly fixedly connected with a limiting block (78), and the limiting blocks (78) are provided with no less than five. The upper surface of the rotating plate (77) is provided with an infrared sensor (79), and the curved plate (56) close to the rotating plate (77) is provided with a receiver (7901). The inner cavity of the switch body (1) is fixedly connected with a bracket (710), the upper surface of the bracket (710) is rotatably connected with a limiting claw (711), and the outer wall of the limiting claw (711) is fixedly connected with a spring (712).

7. A digital program-controlled switch with multiple interfaces according to claim 6, characterized in that: The compression spring (73) is fixedly connected to the slide plate (74); the surface of the disc (76) is provided with triangular inner grooves at equal intervals in an annular manner, and there are no less than five triangular inner grooves; the disc (76) is adapted to the grooves on the limiting column (75).

8. A digital program-controlled switch with multiple interfaces according to claim 6, characterized in that: The rotating plate (77) is in the shape of a pentagon, and the receiver (7901) is electrically controlled and connected to the cooling fan (4).

9. A digital program-controlled switch with multiple interfaces according to claim 6, characterized in that: The limiting claw (711) is slidably connected to the rotating plate (77), the limiting claw (711) is abuttingly connected to the limiting block (78), and the spring (712) is fixedly connected to the bracket (710).

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