CN214755505U - Low-voltage power supply lightning protection module and circuit board of 5G power supply board-mounted lightning protection device - Google Patents
Low-voltage power supply lightning protection module and circuit board of 5G power supply board-mounted lightning protection device Download PDFInfo
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- CN214755505U CN214755505U CN202120651704.0U CN202120651704U CN214755505U CN 214755505 U CN214755505 U CN 214755505U CN 202120651704 U CN202120651704 U CN 202120651704U CN 214755505 U CN214755505 U CN 214755505U
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Abstract
The invention discloses a low-voltage power supply lightning protection module and a circuit board of a 5G power supply board-mounted lightning protection device, wherein the low-voltage power supply lightning protection module comprises a lightning protection box body, a first voltage-limiting lightning protection unit, a second voltage-limiting lightning protection unit, a third voltage-limiting lightning protection unit, a switch-type lightning protection unit and a plurality of electrodes; the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are arranged in the lightning protection box body in a face-to-face mode, and the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are electrically connected through a plurality of electrodes, wherein the electrodes extend out of the lightning protection box body. The onboard lightning protection device is provided with the three voltage-limiting lightning protection units and the switch-type lightning protection unit, so that a novel and small structural design is realized, the requirement on miniaturization of the onboard lightning protection device is met, and the onboard lightning protection device is provided with the plurality of lightning protection units, so that the requirement on large-flow lightning protection is met.
Description
Technical Field
The invention relates to the technical field of warning lightning protection equipment, in particular to a low-voltage power supply lightning protection module and a circuit board of a 5G power supply board-mounted lightning protection device.
Background
A lightning protector, also called a Surge Protector (SPD), is an electronic Device for providing safety protection for various electronic devices, instruments and meters, and communication lines. When the peak current or the voltage is suddenly generated in the electric loop or the communication line due to the external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.
Since the frequency of the 5G signal is high and the transmission distance is short, if the coverage surface similar to that of the 4G network is required to be realized, the arrangement density of the base stations is required to be increased, and therefore, the 5G base stations are more frequently installed in the severe exposure environment such as buildings and telegraph poles; in addition, the 5G communication adopts an MIMO or AAU antenna system, the size of a base station is smaller and smaller, and the safety hidden trouble of lightning stroke is more strictly prevented due to the increase of high-frequency signals and the radiation angle of the antenna; in addition, the miniaturization development and the overall cost control of the 5G communication equipment make the demand for a new generation of miniature large-current lightning protection module which can be directly mounted on a 5G power Panel (PCB) more urgent.
For the traditional lightning protection device, the product volume is large, and the designable space is large, so the design difficulty is overcome; however, for a 5G onboard lightning arrester, the lightning arrester needs to have a miniaturization characteristic while having a large current capacity, and therefore, when designing each module, the space problem must be strictly considered, and the functional requirements of the 5G power supply onboard lightning arrester need to be met, so that higher requirements are provided for the design of the lightning arrester.
The technology provides a novel low-voltage power supply lightning protection module and a circuit board of a 5G power supply board-mounted lightning arrester aiming at the background and the problems, which are used for surge protection of lightning or other transient overvoltage of a low-voltage power distribution and supply system and electric equipment, and the technical breakthrough of the small-volume large-current board-mounted lightning arrester is realized through reasonable distribution and application of piezoresistors and reasonable design of a lightning protection unit and tripping and alarming modes.
Disclosure of Invention
The invention mainly aims to provide a low-voltage power supply lightning protection module and a circuit board of a 5G power supply board-mounted lightning protection device, and aims to solve the technical problems that the low-voltage power supply lightning protection module in the prior art is large in size and small in lightning protection current.
In order to achieve the above object, an embodiment of the present invention provides a low-voltage power supply lightning protection module of a 5G power supply board-mounted lightning protection device, where the low-voltage power supply lightning protection module includes a lightning protection box, a first voltage-limiting lightning protection unit, a second voltage-limiting lightning protection unit, a third voltage-limiting lightning protection unit, a switch-type lightning protection unit, and a plurality of electrodes; the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are arranged in the lightning protection box body in a face-to-face mode, and the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are electrically connected through the electrodes, wherein the electrodes extend out of the lightning protection box body.
Further, the lightning protection box body comprises a lightning protection base and a lightning protection cover body, wherein the lightning protection base comprises a first baffle, a second baffle, a third baffle and a lightning protection bottom plate; the first baffle plate and the second baffle plate are arranged in parallel and are both arranged vertically to the third baffle plate; the first baffle, the second baffle and the third baffle are vertically erected on the lightning protection bottom plate.
Furthermore, the first voltage-limiting lightning protection unit is arranged on the outer side edge of the first baffle, the second voltage-limiting lightning protection unit is arranged on the outer side edge of the second baffle, and the third voltage-limiting lightning protection unit is arranged on the outer side edge of the third baffle; the first baffle, the second baffle and the third baffle are enclosed to form an opening containing cavity, and the switch type lightning protection unit is located in the opening containing cavity.
Furthermore, one end of the first voltage-limiting lightning protection unit and one end of the third voltage-limiting lightning protection unit are electrically connected through a first elastic sheet to form a first electrode; one end of the second voltage limiting type lightning protection unit is electrically connected with the other end of the third voltage limiting type lightning protection unit through a second elastic sheet to form a second electrode; the other ends of the first voltage limiting type lightning protection unit and the second voltage limiting type lightning protection unit are electrically connected with one end of the switch type lightning protection unit through a third elastic sheet, and the other end of the switch type lightning protection unit is a third electrode.
Furthermore, the third elastic sheet is in a Y shape.
Furthermore, the open cavity is divided into a first cavity and a second cavity, and the switch type lightning protection unit is located in the first cavity; and a spring is further arranged in the second accommodating cavity and used for abutting against the first elastic sheet.
Furthermore, the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit and the third voltage-limiting lightning protection unit are piezoresistors.
Further, the switch type lightning protection unit is a gas discharge tube.
Furthermore, four buckles are arranged on the lightning protection base and used for buckling the lightning protection cover body.
In order to achieve the above object, an embodiment of the present invention further provides a circuit board having a low voltage power lightning protection module, where the circuit board includes a circuit board main body and the low voltage power lightning protection module, and the low voltage power lightning protection module is mounted on the circuit board main body.
Compared with the prior art, in the technical scheme provided by the invention, the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch-type lightning protection unit are arranged face to face, so that the structural design is novel and small, the space is effectively saved, and the requirement of miniaturization of an onboard lightning protector is met; and possess a plurality of lightning protection units, satisfy big circulation lightning protection demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an external structure of a low-voltage power lightning protection module of a board-mounted lightning protection device with a 5G power supply according to an embodiment of the invention;
fig. 2 is an exploded schematic view of the low-voltage power lightning protection module shown in fig. 1;
FIG. 3 is a schematic diagram of a combined structure of the low-voltage power lightning protection module in FIG. 2;
FIG. 4 is a schematic structural diagram of the lightning protection base in FIG. 2;
FIG. 5 is an electrical schematic diagram of the low voltage power lightning protection module shown in FIG. 1;
fig. 6 is a schematic structural diagram of an embodiment of a circuit board with a low-voltage power lightning protection module according to the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In order to better understand the technical scheme, the technical scheme is described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5, fig. 1 is a schematic view of an outline structure of an embodiment of a low-voltage power lightning protection module of a 5G power board-mounted lightning protection device according to the invention; fig. 2 is an exploded schematic view of the low-voltage power lightning protection module shown in fig. 1; FIG. 3 is a schematic diagram of a combined structure of the low-voltage power lightning protection module in FIG. 2; FIG. 4 is a schematic structural diagram of the lightning protection base in FIG. 2; fig. 5 is an electrical schematic diagram of the low-voltage power lightning protection module in fig. 1.
As shown in fig. 1 and fig. 2, the low voltage power lightning protection module 100 of the 5G power board-mounted lightning protection device of the embodiment is mainly applied to a 5G PCB, and the low voltage power lightning protection module 100 includes a lightning protection box 160, a first voltage limiting lightning protection unit 110, a second voltage limiting lightning protection unit 120, a third voltage limiting lightning protection unit 130, a switch type lightning protection unit 140, and a plurality of electrodes 150.
The first voltage limiting lightning protection unit 110, the second voltage limiting lightning protection unit 120, the third voltage limiting lightning protection unit 130 and the switch type lightning protection unit 140 are arranged in the lightning protection box body 160 in a face-to-face mode, the first voltage limiting lightning protection unit 110, the second voltage limiting lightning protection unit 120, the third voltage limiting lightning protection unit 130 and the switch type lightning protection unit 140 are electrically connected through a plurality of electrodes 150, and the plurality of electrodes 150 extend out of the lightning protection box body 160. Specifically, the plurality of electrodes 150 includes a first electrode 151, a second electrode 152, and a third electrode 153.
The low-voltage power supply lightning protection module 100 provided by the embodiment is provided with the first voltage-limiting lightning protection unit 110, the second voltage-limiting lightning protection unit 120, the third voltage-limiting lightning protection unit 130 and the switch-type lightning protection unit 140 in a face-to-face manner, so that the structural design is novel, the size is small, and the space can be saved; the low-voltage power lightning protection module 100 includes a plurality of lightning protection units, and has a large lightning protection current.
In a specific application, the first voltage-limiting lightning protection unit 110, the second voltage-limiting lightning protection unit 120, and the third voltage-limiting lightning protection unit 130 may be voltage-limiting lightning protection units with the same value, or voltage-limiting lightning protection units with different values, and are not limited herein. For convenience of understanding, in this embodiment, the first voltage limiting lightning protection unit 110 and the second voltage limiting lightning protection unit 120 are disposed in the lightning protection box 160 in a face-to-face manner, and the third voltage limiting lightning protection unit 130 and the switch type lightning protection unit 140 are disposed in the lightning protection box 160 in a face-to-face manner; in other embodiments, the first voltage limiting lightning protection unit 110 and the third voltage limiting lightning protection unit 130 may be disposed in the lightning protection box 160 in a face-to-face manner, which is not limited herein.
Further, the lightning protection box 160 includes a lightning protection base 161 and a lightning protection cover 162, and four fasteners 1610 are disposed on the lightning protection base 161 for fastening the lightning protection cover 162. Specifically, four buckles 1610 are located two corresponding edges of the lightning protection base 161, and each edge has two buckles 1610, and the position that the lightning protection lid 162 corresponds has a clamping position, and the buckle cooperates with the clamping position to make the lightning protection base 161 and the lightning protection lid 162 buckled as an organic whole.
As shown in fig. 4, the lightning protection base 161 includes a first barrier 1611, a second barrier 1612, a third barrier 1613, and a lightning protection substrate 1614; the first baffle 1611 and the second baffle 1612 are arranged in parallel and are both arranged perpendicular to the third baffle 1613; the first barrier 1611, the second barrier 1612, and the third barrier 1613 are all vertically erected on the lightning protection substrate 1614. Thus, the first barrier 1611, the second barrier 1612, and the third barrier 1613 form one "pi" shape.
In this embodiment, the first voltage-limiting lightning protection unit 110 is disposed on the outer side of the first baffle 1611, the second voltage-limiting lightning protection unit 120 is disposed on the outer side of the second baffle 1612, and the third voltage-limiting lightning protection unit 130 is disposed on the outer side of the third baffle 1613; the first baffle 1611, the second baffle 1612 and the third baffle 1613 enclose an open cavity 1615, and the switch type lightning protection unit 140 is located in the open cavity 1615. Namely, the first voltage limiting lightning protection unit 110, the second voltage limiting lightning protection unit 120, and the third voltage limiting lightning protection unit 130 are located at three outer sides of the pi-shaped lightning protection unit, and the switch type lightning protection unit 140 is located inside the pi-shaped lightning protection unit.
In this embodiment, the first voltage-limiting lightning protection unit 110, the second voltage-limiting lightning protection unit 120, the third voltage-limiting lightning protection unit 130, and the switch-type lightning protection unit 140 are electronic components; the first voltage-limiting lightning protection unit 110, the second voltage-limiting lightning protection unit 120, and the third voltage-limiting lightning protection unit 130 are piezoresistors, and the switching lightning protection unit 140 is a gas discharge tube. The piezoresistor and the gas discharge tube are both provided with two pins. The electrical schematic is shown in fig. 5.
Wherein, one end of the first voltage limiting lightning protection unit 110 and one end of the third voltage limiting lightning protection unit 130 are electrically connected through the first elastic sheet 171 to form a first electrode 151; one end of the second voltage-limiting lightning protection unit 120 and the other end of the third voltage-limiting lightning protection unit 130 are electrically connected through the second elastic sheet 172 to form a second electrode 152; the other ends of the first voltage limiting lightning protection unit 110 and the second voltage limiting lightning protection unit 120 are electrically connected to one end of the switch type lightning protection unit 140 through a third elastic sheet 173, the other end of the switch type lightning protection unit 140 is a third electrode 153, and specifically, the other end of the switch type lightning protection unit 140 is welded with a fourth elastic sheet 174 to form the third electrode 153.
Specifically, the first elastic sheet 171, the second elastic sheet 172, the third elastic sheet 173, and the fourth elastic sheet 174 are all metal elastic sheets, and have different shapes due to structural design, so as to satisfy the electrical connection between the electronic components. The third elastic sheet 173 is Y-shaped, and in a specific application, two pins of the Y-shaped elastic sheet are connected to the first voltage limiting lightning protection unit 110 and the second voltage limiting lightning protection unit 120 by welding after being bent, so as to form a disconnector. The specific implementation of the disconnector is that one end of the third elastic sheet 173 (also called a tripping elastic sheet) is connected to both the first voltage-limiting lightning protection unit 110 and the second voltage-limiting lightning protection unit 120 by welding, and the other end is welded to the switching lightning protection unit 140, specifically to the electrode of the gas discharge tube, under the condition of large current, the soldering tin is melted by high temperature, and the third elastic sheet 173 trips by means of its own elasticity, thereby ensuring the safety of the low-voltage power supply lightning protection module 100 when overcurrent and overheat.
Further, the open cavity 1615 is divided into a first cavity 1616 and a second cavity 1617, and the switch type lightning protection unit 140 is located in the first cavity 1616; a spring 175 is further disposed in the second cavity 1617 and is used for abutting against the first elastic sheet 171. Specifically, the switch type lightning protection unit 140 is a gas discharge tube, and the gas discharge tube is cylindrical, so that an open cylindrical cavity 1618 is provided in the first cavity 1616, and the diameter of the open cylindrical cavity 1618 is greater than that of the gas discharge tube, and is used for placing the gas discharge tube. The opening of the open cylindrical cavity 1618 is designed to facilitate the exit of the fourth resilient tab 174.
Further, since the diameter of the spring 175 is smaller, the second cavity 1617 may be divided into a plurality of small cavities, and the diameter of the small cavities is slightly larger than that of the spring 175 for accommodating the spring 175; a positioning column can be arranged in the middle of the bottom of the small cavity and used for fixing the spring 175; furthermore, an isolation pad 176 is disposed at an end of the spring 175 abutting against the first elastic sheet 171 for isolating the spring 175 from the first elastic sheet 171. Wherein the spacer 176 is made of a high temperature resistant material. The spring 175 functions to: the spring 175 has elastic deformation, is in the elastic compression state when the low-voltage power lightning protection module 100 normally works, and under the condition of large current, high temperature makes the soldering tin melting of the first elastic sheet 171, and the spring 175 reconversion pops the first elastic sheet 171 open to release, thereby ensuring the safety of the low-voltage power lightning protection module 100 when overcurrent and overheat.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a circuit board with a low-voltage power lightning protection module according to an embodiment of the present invention.
As shown in fig. 6, the circuit board 10 having the low voltage power lightning protection module includes a circuit board main body 11 and a low voltage power lightning protection module 100, and the low voltage power lightning protection module 100 is mounted on the circuit board main body 11. The structure of the low-voltage power lightning protection module 100 is referred to above, and is not described herein again.
In summary, those skilled in the art can easily understand that, in the technical scheme provided by the present invention, the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch-type lightning protection unit are arranged face to face, so that the structural design is novel and small, the space is effectively saved, and the requirement of miniaturization of the onboard lightning protection device is met; and possess a plurality of lightning protection units, satisfy big circulation lightning protection demand.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments of the present invention, and all modifications and equivalents that can be made by using the contents of the description and drawings of the embodiments of the present invention or directly/indirectly applied to other related technical fields are included in the scope of the embodiments of the present invention.
Claims (10)
1. A low-voltage power supply lightning protection module of a 5G power supply board-mounted lightning protection device is characterized by comprising a lightning protection box body, a first voltage-limiting lightning protection unit, a second voltage-limiting lightning protection unit, a third voltage-limiting lightning protection unit, a switch-type lightning protection unit and a plurality of electrodes; wherein the content of the first and second substances,
the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are arranged in the lightning protection box body face to face, and the first voltage-limiting lightning protection unit, the second voltage-limiting lightning protection unit, the third voltage-limiting lightning protection unit and the switch type lightning protection unit are electrically connected through the electrodes, wherein the electrodes extend out of the lightning protection box body.
2. The low voltage power supply lightning protection module of claim 1, wherein the lightning protection box includes a lightning protection base and a lightning protection cover, the lightning protection base including a first baffle, a second baffle, a third baffle, and a lightning protection bottom plate; wherein the content of the first and second substances,
the first baffle and the second baffle are arranged in parallel and are both arranged vertically to the third baffle;
the first baffle, the second baffle and the third baffle are vertically erected on the lightning protection bottom plate.
3. The lightning protection module of low voltage power supply according to claim 2, wherein the first lightning protection element of voltage limiting type is placed on the outer side of the first baffle, the second lightning protection element of voltage limiting type is placed on the outer side of the second baffle, and the third lightning protection element of voltage limiting type is placed on the outer side of the third baffle; wherein the content of the first and second substances,
the first baffle, the second baffle and the third baffle are enclosed to form an opening containing cavity, and the switch type lightning protection unit is located in the opening containing cavity.
4. The lightning protection module for low voltage power supply according to claim 3, wherein one end of the first voltage limiting lightning protection unit and one end of the third voltage limiting lightning protection unit are electrically connected to form a first electrode through a first elastic sheet;
one end of the second voltage limiting type lightning protection unit is electrically connected with the other end of the third voltage limiting type lightning protection unit through a second elastic sheet to form a second electrode;
the other ends of the first voltage limiting type lightning protection unit and the second voltage limiting type lightning protection unit are electrically connected with one end of the switch type lightning protection unit through a third elastic sheet, and the other end of the switch type lightning protection unit is a third electrode.
5. The lightning protection module for low-voltage power supplies according to claim 4, wherein the third elastic sheet is Y-shaped.
6. The lightning protection module for low-voltage power supplies according to claim 4, wherein the open cavity is divided into a first cavity and a second cavity, and the switch type lightning protection unit is located in the first cavity; and a spring is further arranged in the second accommodating cavity and used for abutting against the first elastic sheet.
7. The lightning protection module for low voltage power supply according to claim 6, wherein the first, second and third voltage-limiting lightning protection units are piezoresistors.
8. The lightning protection module for low voltage power supply according to claim 7, wherein the switching lightning protection unit is a gas discharge tube.
9. The lightning protection module for low voltage power supply according to claim 2, wherein the lightning protection base is provided with four fasteners for fastening the lightning protection cover.
10. A circuit board having a low voltage power lightning protection module, characterized in that the circuit board comprises a circuit board main body and the low voltage power lightning protection module of any one of claims 1-9, the low voltage power lightning protection module being mounted on the circuit board main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120651704.0U CN214755505U (en) | 2021-03-31 | 2021-03-31 | Low-voltage power supply lightning protection module and circuit board of 5G power supply board-mounted lightning protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120651704.0U CN214755505U (en) | 2021-03-31 | 2021-03-31 | Low-voltage power supply lightning protection module and circuit board of 5G power supply board-mounted lightning protection device |
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| Publication Number | Publication Date |
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| CN214755505U true CN214755505U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120651704.0U Active CN214755505U (en) | 2021-03-31 | 2021-03-31 | Low-voltage power supply lightning protection module and circuit board of 5G power supply board-mounted lightning protection device |
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| CN (1) | CN214755505U (en) |
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2021
- 2021-03-31 CN CN202120651704.0U patent/CN214755505U/en active Active
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