A lightning electromagnetic pulse protection device

Abstract

The present invention relates to the field of lightning electromagnetic pulse protection technology, and in particular to a lightning electromagnetic pulse protection device. In order to reduce the probability of collision and impact damage of external debris on the device and improve the working reliability of the device, the present invention comprises a shell, the two ends of the shell are provided with wiring terminals, a protection module is arranged in the shell, an anti-collision cylinder is arranged outside the shell, a plurality of rib connection groups are connected between the anti-collision cylinder and the shell, each rib connection group comprises two rib connection plates connected at the ends and arranged at an angle, in each rib connection group, the connection between the two rib connection plates is fixedly connected to the shell, and the other end of the rib connection plate is fixedly connected to the anti-collision cylinder, the anti-collision cylinder intercepts possible foreign objects, protects the shell and the protection module in the shell, reduces the influence of external impurities on the device, improves the heat dissipation efficiency in the anti-collision cylinder through heat dissipation ribs, and improves the heat dissipation efficiency of the protection module.

Description

Technical Field

[0001] The present invention relates to the technical field of lightning electromagnetic pulse protection, and in particular to a lightning electromagnetic pulse protection device. Background Art

[0002] Lightning electromagnetic pulse is a strong transient electromagnetic pulse generated by lightning, and is the most serious natural electromagnetic interference source. Lightning electromagnetic pulse generated by lightning discharge has the characteristics of high steepness, high peak current, strong electric field, long response time, low spectrum coverage starting point, relatively narrow frequency band (100Hz-100MHz), huge energy, etc. It is very easy to induce strong induced overcurrent and overvoltage on antennas, overhead power grids, exposed interconnection cables, buried cables or exposed metals, thereby generating hazards such as voltage and current surges, high voltage breakdown and transient strong electromagnetic pulse radiation, which will cause serious lightning electromagnetic pulse intrusion to large wireless equipment and facilities systems exposed outdoors for a long time, especially a large number of RF coaxial key components, and pose a serious threat to modern electrical and electronic equipment with various sensitive semiconductors or cause fatal damage; thus affecting the function, reliability and service life of equipment facilities and systems, and even endangering the safety of equipment and personnel.

[0003] Lightning electromagnetic pulse protection is a part of electromagnetic pulse safety protection. It is a protection against high-energy electromagnetic pulses caused by natural lightning. It is a protection technology that prevents damage to the building itself or its internal equipment caused by direct lightning or lightning electromagnetic pulses through an integrated system of interception, guidance and final discharge into the ground.

[0004] When the device is performing protective work, the outdoor environment is usually more complicated and is prone to collision with external debris, which in turn affects the normal use of the device. In severe cases, the device may even be damaged, affecting the normal use of subsequent equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a lightning electromagnetic pulse protection device to reduce the probability of damage to the device caused by collision and impact of external debris and improve the working reliability of the device.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A lightning electromagnetic pulse protection device comprises a shell, two ends of the shell are provided with wiring terminals, a protection module is arranged inside the shell, an anti-collision cylinder is arranged outside the shell, a plurality of rib connection groups are connected between the anti-collision cylinder and the shell, each rib connection group comprises two rib connection plates whose ends are connected and arranged at an angle, in each rib connection group, the connection between the two rib connection plates is fixedly connected to the shell, and the other end of the rib connection plate is fixedly connected to the anti-collision cylinder.

[0008] Through the above technical scheme, the anti-collision cylinder is supported by a plurality of rib joint groups, so that the anti-collision cylinder forms an effective encirclement outside the outer shell, and each rib joint group is composed of two rib joint plates connected at the ends and arranged at an angle, so that a triangular structure is formed between the two rib joint plates and the anti-collision cylinder, thereby improving the support stability of the anti-collision cylinder; and there is a buffer space between the anti-collision cylinder and the outer shell, which not only has a buffer effect, but also ensures heat exchange between the outer shell and the air, and the anti-collision cylinder intercepts external impurities impacting the outer shell, thereby realizing protection of the protection module and improving the reliability of the device operation.

[0009] Furthermore, the anti-collision tube is provided with a plug-in groove along the axial direction, a heat dissipation rib is provided through the plug-in groove along the radial direction of the anti-collision tube, and a heat dissipation channel connecting the inside and outside of the anti-collision tube is provided inside the heat dissipation rib.

[0010] Through the above technical solution, heat contact transfer is achieved through the heat dissipation ribs arranged in the plug-in slot, and a heat dissipation channel is opened in the anti-collision cylinder to further improve the heat exchange efficiency inside and outside the anti-collision cylinder.

[0011] Furthermore, the heat dissipation rib is movably connected in the plug-in slot, and the extension length of the heat dissipation rib outside the anti-collision cylinder is greater than the extension length inside the anti-collision cylinder, and a machine base is provided on the outer sleeve of the terminal, and a plurality of fan blades are provided on the machine base, and a swinging component for driving the heat dissipation rib to swing is provided between the machine base and the heat dissipation rib.

[0012] Through the above technical scheme, when there is wind in the environment and the fan blades drive the machine base to rotate, the heat dissipation ribs can be swung through the swing assembly. Since the extension length of the heat dissipation rib outside the anti-collision cylinder is greater than the extension length inside the anti-collision cylinder, the linear velocity of the heat dissipation rib at the end outside the anti-collision cylinder is greater than the linear velocity at the end inside the anti-collision cylinder. Therefore, the heat inside the anti-collision cylinder can be accelerated to be discharged outside the anti-collision cylinder through the heat dissipation channel.

[0013] Furthermore, the swing assembly includes a cam groove opened on the base near the end surface of the shell, a connecting plate is fixedly connected to the heat dissipation rib, a connecting rod is fixedly connected to the connecting plate, the connecting rod penetrates into the cam groove and rotates with the base to drive the heat dissipation rib to swing back and forth.

[0014] Furthermore, the cam groove includes a plurality of arc grooves connected end to end in sequence, any of the arc grooves is symmetrical about the diameter, and the center of the arc groove is located in the radial direction of the base.

[0015] Through the above technical solution, when the machine base rotates, the cam groove and the connecting rod drive the heat dissipation rib to swing relative to the anti-collision tube in the plug-in groove.

[0016] Furthermore, the connecting rod is configured to be cylindrical.

[0017] Through the above technical solution, the cylindrical connecting rod reduces the friction with the machine base in the cam groove, improves the smoothness of the swing of the heat dissipation ribs, and further improves the heat dissipation efficiency in the anti-collision cylinder.

[0018] Furthermore, the heat dissipation channels are provided in a plurality and are arranged in a curve.

[0019] Through the above technical solution, the possibility of foreign matter passing through is further reduced through the heat dissipation channel arranged in a curve, thereby improving the protection of the protective module.

[0020] Furthermore, the fan blades extend away from the axis and protrude from the heat dissipation ribs.

[0021] Through the above technical solution, the fan blades are more easily driven by wind.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. The anti-collision tube can be used to intercept possible foreign objects, protect the outer shell and the protective module inside the outer shell, and reduce the impact of external impurities on the device;

[0024] 2. Improve the heat dissipation efficiency in the anti-collision cylinder and the protection module through heat dissipation ribs;

[0025] 3. The fan and the swing assembly drive the heat dissipation ribs to swing with the help of natural wind, thereby further improving the heat dissipation near the shell and improving the protection reliability of the protection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a partial cross-sectional structural schematic diagram of this embodiment, mainly showing the structure of the housing and the terminal;

[0027] Figure 2 It is a structural schematic diagram of this embodiment;

[0028] Figure 3 is a partial structural diagram of this embodiment, mainly showing the structure of the rib joint group;

[0029] Figure 4 is a partial cross-sectional view of this embodiment, mainly showing the structure of the heat dissipation channel;

[0030] Figure 5 It is the structure of the cam groove on the machine base in this embodiment;

[0031] Figure 6 yes Figure 4 A is an enlarged view of the middle image.

[0032] Figure numerals: 1. outer shell; 2. terminal; 3. protection module; 4. anti-collision cylinder; 5. rib connection group; 6. rib connection plate; 7. plug-in slot; 8. heat dissipation rib; 9. heat dissipation channel; 10. base; 11. fan blade; 12. swing assembly; 13. cam slot; 14. connecting plate; 15. connecting rod; 16. arc slot. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0034] A lightning electromagnetic pulse protection device, such as Figure 1 As shown, it includes a shell 1, with wiring terminals 2 at both ends of the shell 1, and a protection module 3 is arranged inside the shell 1. The wiring terminals 2 realize the electrical connection between the protection module 3 and the outside world. The protection module 3 is usually an integrated chip.

[0035] like Figure 2 and Figure 3 As shown, an anti-collision tube 4 is provided outside the shell 1, and a number of rib joint groups 5 are connected between the anti-collision tube 4 and the shell 1. In this embodiment, four groups are arranged on the cross section along the circumference of the shell 1, and each rib joint group 5 includes two rib joint plates 6 which are connected at the ends and arranged at an angle. In each rib joint group 5, the connection between the two rib joint plates 6 is fixedly connected to the shell 1, and the other end of the rib joint plate 6 is fixedly connected to the anti-collision tube 4. The anti-collision tube 4 can be made of either rigid material or flexible material, and can be selected according to factors such as different applicable scenarios.

[0036] There is a buffer space between the anti-collision cylinder 4 and the outer shell 1, which not only has a buffer effect, but also ensures heat exchange between the outer shell 1 and the air. The anti-collision cylinder 4 intercepts external impurities that impact the outer shell 1, thereby protecting the protective module 3 and improving the reliability of the device.

[0037] The rib plates 6 can be made of a material with certain elasticity, such as high-polymerization PVC or elastic alloy, etc. The connecting ends of the two rib plates 6 can be fixedly connected to the outer ends of the shell 1 by glue, and the elastic characteristics of the rib plates 6 can also be used to fix the shell 1 and the anti-collision cylinder 4.

[0038] The anti-collision tube 4 is supported by a plurality of rib connection groups 5, so that the anti-collision tube 4 forms an effective encirclement outside the outer shell 1, and each rib connection group 5 is composed of two rib connection plates 6 connected at the ends and arranged at an angle, so that a triangular structure is formed between the two rib connection plates 6 and the anti-collision tube 4, thereby improving the supporting stability of the anti-collision tube 4.

[0039] like Figure 2As shown, a plug-in slot 7 is provided in the axial direction formed by the line connecting the two terminal ends 2 of the anti-collision tube 4, and a heat dissipation rib 8 is provided through the plug-in slot 7 along the radial direction of the anti-collision tube 4. The heat dissipation rib 8 is made of metal or alloy material, the width of the heat dissipation slot is greater than the thickness of the heat dissipation rib 8, and the heat dissipation rib 8 is hinged to the anti-collision tube 4 in the plug-in slot 7 by means of hinges or the like.

[0040] like Figure 4 As shown, a plurality of heat dissipation channels 9 are provided inside the heat dissipation rib 8 to connect the inside and outside of the anti-collision tube 4 . The plurality of heat dissipation channels 9 are arranged in parallel, and the heat dissipation channels 9 extend in a curved winding manner in the radial direction of the anti-collision tube 4 .

[0041] The heat transfer is achieved by heat dissipation ribs 8 arranged in the plug slot 7 , and a heat dissipation channel 9 is provided in the anti-collision tube 4 to further improve the heat exchange efficiency inside and outside the anti-collision tube 4 .

[0042] like Figure 2 and Figure 5 As shown, in order to improve the heat exchange efficiency inside and outside the anti-collision cylinder 4, when the heat dissipation rib 8 is fixed, the extension length of the heat dissipation rib 8 outside the anti-collision cylinder 4 is greater than the extension length inside the anti-collision cylinder 4. A base 10 is provided on the outer cover of one of the terminal 2, and a plurality of fan blades 11 are installed on the base 10. The fan blades 11 extend away from the axis and protrude from the heat dissipation rib 8. A swing component 12 is provided between the base 10 and the heat dissipation rib 8 for driving the heat dissipation rib 8 to swing.

[0043] like Figure 5 and Figure 6 As shown, the swing assembly 12 includes a cam groove 13 opened on the end face of the base 10 close to the outer shell 1, and the heat dissipation rib 8 is fixedly connected to a connecting plate 14 on the side wall inside the anti-collision cylinder 4. The connecting plate 14 is fixedly connected to a connecting rod 15 on the side wall close to the base 10. The connecting rod 15 is cylindrical and penetrates into the cam groove 13 and rotates with the base 10 to drive the heat dissipation rib 8 to swing back and forth.

[0044] The cam groove 13 includes a plurality of arc grooves 16 connected end to end in sequence, and any arc groove 16 is symmetrical about its own diameter, and the center of the arc groove 16 is located in the radial direction of the base 10 .

[0045] When there is wind in the environment and the fan blades 11 drive the base 10 to rotate, the cam slot 13 rotates. Since the connecting rod 15 is fixed to the heat dissipation rib 8, the heat dissipation rib 8 can swing in the plug-in slot 7. The swinging direction of the heat dissipation rib 8 is consistent with the direction of the cam slot 13 through the action of the connecting plate 14, that is, the swing of the heat dissipation rib 8 is realized. Since the extension length of the heat dissipation rib 8 outside the anti-collision cylinder 4 is greater than the extension length inside the anti-collision cylinder 4, the linear velocity of the heat dissipation rib 8 at the outer end of the anti-collision cylinder 4 is greater than the linear velocity at the inner end of the anti-collision cylinder 4, so the heat inside the anti-collision cylinder 4 can be accelerated to be discharged to the outside of the anti-collision cylinder 4 through the heat dissipation channel 9.

[0046] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A lightning electromagnetic pulse protection device, comprising a housing (1), wherein both ends of the housing (1) are provided with wiring terminals (2), and a protection module (3) is provided inside the housing (1), characterized in that: The outer shell (1) is provided with an anti-collision tube (4). A plurality of rib connection groups (5) are connected between the anti-collision tube (4) and the outer shell (1). Each rib connection group (5) includes two rib connection plates (6) whose ends are connected and arranged at an angle. In each rib connection group (5), the connection between the two rib connection plates (6) is fixedly connected to the outer shell (1), and the other end of the rib connection plate (6) is fixedly connected to the anti-collision tube (4). The anti-collision tube (4) is provided with a plug-in slot (7) along the axial direction. A heat dissipation rib (8) is provided through the plug-in slot (7) along the radial direction of the anti-collision tube (4). A heat dissipation channel (9) connecting the inside and outside of the anti-collision tube (4) is provided inside the heat dissipation rib (8). The heat dissipation rib (8) is movably connected in the plug-in slot (7). 8) The extension length outside the anti-collision cylinder (4) is greater than the extension length inside the anti-collision cylinder (4), and the outer shell of the terminal (2) is provided with a machine base (10), and a plurality of fan blades (11) are provided on the machine base (10), and a swing component (12) for driving the heat dissipation rib (8) to swing is provided between the machine base (10) and the heat dissipation rib (8), and the swing component (12) includes a cam groove (13) opened on the end surface of the machine base (10) close to the shell (1), and the heat dissipation rib (8) is fixedly connected with a connecting plate (14), and the connecting plate (14) is fixedly connected with a connecting rod (15), and the connecting rod (15) penetrates into the cam groove (13) and rotates with the seat (10) to drive the heat dissipation rib (8) to swing back and forth.

2. A lightning electromagnetic pulse protection device according to claim 1, characterized in that: The cam groove (13) comprises a plurality of arc grooves (16) connected end to end in sequence, any of the arc grooves (16) is symmetrical about the diameter, and the center of the arc groove (16) is located in the radial direction of the machine base (10).

3. A lightning electromagnetic pulse protection device according to claim 1, characterized in that: The connecting rod (15) is configured to be cylindrical.

4. A lightning electromagnetic pulse protection device according to claim 1, characterized in that: The heat dissipation channels (9) are provided in a plurality and are arranged in a curved pattern.

5. A lightning electromagnetic pulse protection device according to claim 1, characterized in that: The fan blades (11) extend in a direction away from the axis and protrude beyond the heat dissipation ribs (8).

Images