CN216437572U

CN216437572U - Lightning protection printed circuit board

Info

Publication number: CN216437572U
Application number: CN202123037768.0U
Authority: CN
Inventors: 朱友军; 钟小平; 谭春梅
Original assignee: Hubei Tianling Electronic Technology Co ltd
Current assignee: Hubei Tianling Electronic Technology Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-03
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a lightning protection printed circuit board, which belongs to the field of lightning protection printed circuit boards and comprises a circuit board and a lightning protection cover, wherein the upper end of the circuit board is sleeved with the lightning protection cover; when using, pass the through-hole with the wire of circuit board upper end, be fixed in the electrical connection seat of relay, the inside fixed mounting of lightning protection cover has piezo-resistor, piezo-resistor is connected with the ground wire, it is too big to lead to equipment voltage when external thunderbolt, relay disconnection circuit board power, too big voltage conducts to the ground wire through the leading-in piezo-resistor of lightning protection cover, the rethread ground wire is derived with it, avoid too big voltage to damage the circuit board, when the installation relay, in the cassette in the lightning protection cover outside with the fixture block embedding at the relay back, when dismantling, only need slide block right, the slider drives the fixed block and moves right, alright dismantlement relay, the installation and the dismantlement of the relay of this mode being convenient for, in the fixture block shifts out the cassette, loosen the slider, expanding spring promotes the fixed block and resets.

Description

Lightning protection printed circuit board

Technical Field

The utility model belongs to the technical field of the lightning protection printed circuit board, concretely relates to lightning protection printed circuit board.

Background

The glue spreader is also called a coating machine, a spreading machine, an automatic glue sprayer and the like. A mechanical device for applying liquid glue to the surface of textile, carton or leather, the existing glue applicators are of many different types.

When the existing circuit board is used, lightning protection equipment is not installed, and equipment voltage is overlarge due to lightning stroke, so that the circuit board is damaged and cannot be normally used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lightning protection printed circuit board to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a lightning protection printed circuit board, includes circuit board and lightning protection cover, the circuit board upper end cup joints installs the lightning protection cover, lightning protection cover outside fixedly connected with cassette, and the inside block of cassette is equipped with the fixture block to the fixture block is fixed in the relay back, the relay surface runs through and has seted up a plurality of through-hole, relay fixed surface installs the electrical connection seat, and the circuit board runs through the through-hole through the wire and connects the electrical connection seat, the inside fixed mounting of lightning protection cover has piezo-resistor, lightning protection cover upper end fixedly connected with ground wire, the relay surface rotates and is equipped with the switch.

In a preferred embodiment, the number of the piezoresistors is five, the piezoresistors are distributed at equal intervals along the transverse position of the lightning protection cover, and the piezoresistors are kept connected with the ground wire.

In a preferred embodiment, the lightning protection cover is connected with the relay through a wire, and the relay is connected with the lightning protection cover and the circuit board respectively in parallel.

As a preferred embodiment, the number of the fixture blocks fixedly installed on the back surface of the relay is three, and the number of the fixture blocks is equal to the number of the fixture seats.

As a preferred embodiment, the clamping seat is movably provided with a fixed block inside, and the right end of the fixed block is movably connected with an expansion spring which has a spiral shape and a spiral structure.

As a preferred embodiment, a slide rail penetrates through the lower end of the clamping seat, a slide block is movably arranged in the slide rail, and the slide block and the fixed block are fixedly connected.

Compared with the prior art, the beneficial effects of the utility model are that: when using, pass the through-hole with the wire of circuit board upper end, be fixed in the electrical connection seat of relay, the inside fixed mounting of lightning protection cover has piezo-resistor, piezo-resistor is connected with the ground wire, it is too big to lead to equipment voltage when external thunderbolt, relay disconnection circuit board power, too big voltage conducts to the ground wire through the leading-in piezo-resistor of lightning protection cover, the rethread ground wire is derived with it, avoid too big voltage to damage the circuit board, when the installation relay, in the cassette in the lightning protection cover outside with the fixture block embedding at the relay back, when dismantling, only need slide block right, the slider drives the fixed block and moves right, alright dismantlement relay, the installation and the dismantlement of the relay of this mode being convenient for, in the fixture block shifts out the cassette, loosen the slider, expanding spring promotes the fixed block and resets.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the lightning protection cover of the present invention;

fig. 3 is a schematic diagram of a relay structure according to the present invention;

fig. 4 is a schematic view of the structure of the clamping seat of the present invention.

In the figure: 1. a circuit board; 2. a lightning protection cover; 3. a relay; 4. a switch; 5. an electric connection seat; 6. a ground wire; 7. a voltage dependent resistor; 8. a card holder; 801. a fixed block; 802. a tension spring; 803. a slider; 804. a slide rail; 9. a clamping block; 10. and a through hole.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Please refer to fig. 1-4, the utility model provides a lightning protection printed circuit board, including circuit board 1 and

lightning protection cover

2, 1 upper end of circuit board cup joints and installs

lightning protection cover

2, 2 outside fixedly connected with cassette 8 of lightning protection cover, and the inside block of cassette 8 is equipped with fixture block 9 to fixture block 9 is fixed in the 3 backs of relay, 3 surfaces of relay run through and has seted up a plurality of through-

hole

10, 3 fixed surface of relay installs electrical connection seat 5, and circuit board 1 runs through-hole 10 through the wire and connects electrical connection seat 5, 2 inside fixed mounting of lightning protection cover have piezo-

resistor

7, 2 upper ends fixedly connected with ground wire 6 of lightning protection cover, 3 surface rotation of relay is equipped with switch 4.

Further, piezo-resistor 7 quantity is equipped with five altogether, and piezo-resistor 7 is equidistant distribution along 2 lateral positions of lightning protection cover to piezo-resistor 7 keeps being connected with ground wire 6, lightning protection cover 2 passes through wire connection relay 3, and relay 3 links to each other with lightning protection cover 2 and circuit board 1 respectively and is parallelly connected the setting.

In this embodiment, when the external lightning stroke causes the equipment voltage too big, relay 3 can break off the connection with circuit board 1, and with the leading-in lightning protection cover 2 of electric current conduct to ground wire 6 through piezo-resistor 7, derive it, avoid too big voltage to damage circuit board 1.

Further, the number of the fixture blocks 9 fixedly mounted on the back of the relay 3 is set to be three, the number of the fixture blocks 9 is equal to the number of the fixture blocks 8, the fixture block 801 is movably mounted inside the fixture block 8, the right end of the fixture block 801 is movably connected with the expansion spring 802 which is in a spiral shape and has a shape structure, the lower end of the fixture block 8 penetrates through the sliding rail 804, the sliding block 803 is movably arranged inside the sliding rail 804, and the sliding block 803 and the fixture block 801 are fixedly connected.

In this embodiment, when installing relay 3, in the cassette 8 in the lightning protection cover 2 outside with the fixture block 9 embedding at the relay 3 back, use through the cooperation of fixture block 9 with fixed block 801, and then nested fixed relay 3, when dismantling, only need slide block 803 to the right, slide block 803 drives fixed block 801 and moves right, alright dismantle relay 3, this mode is convenient for relay 3's installation and dismantlement, in fixture block 9 shifts out cassette 8, loosen slide block 803, expanding spring 802 promotes fixed block 801 and resets.

The utility model discloses a theory of operation and use flow: when in use, the lead at the upper end of the circuit board 1 passes through the through hole 10 and is fixed in the electric connection seat 5 of the relay 3, the piezoresistor 7 is fixedly arranged in the lightning protection cover 2, the piezoresistor 7 is connected with the ground wire 6, when the voltage of the equipment is overlarge due to external lightning stroke, the relay 3 cuts off the power supply of the circuit board 1, the overlarge voltage is led into the piezoresistor 7 through the lightning protection cover 2 and is conducted to the ground wire 6, and then the piezoresistor 7 is led out through the ground wire 6, so that the circuit board 1 is prevented from being damaged by the overlarge voltage, when the relay 3 is installed, the clamping block 9 at the back of the relay 3 is embedded into the clamping seat 8 at the outer side of the lightning protection cover 2, when in disassembly, the relay 3 can be disassembled only by sliding the sliding block 803 to the right, and the sliding block 803 drives the fixing block 801 to move to the right, this mode is convenient for the installation and the dismantlement of relay 3, and when fixture block 9 moved out in the cassette 8, unclamped slider 803, expanding spring 802 promoted fixed block 801 and resets.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lightning protection printed circuit board, includes circuit board (1) and lightning protection cover (2), its characterized in that: the anti-thunder cover is installed in the sleeving connection of the upper end of the circuit board (1), the clamping seat (8) is fixedly connected to the outer side of the anti-thunder cover (2), the clamping block (9) is arranged in the clamping seat (8), the clamping block (9) is fixed to the back face of the relay (3), the surface of the relay (3) is penetrated through the through holes (10), the electric connection seat (5) is installed on the surface of the relay (3), the circuit board (1) penetrates through the through holes (10) through wires to be connected with the electric connection seat (5), the pressure-sensitive resistor (7) is installed in the inner fixed of the anti-thunder cover (2), the ground wire (6) is fixedly connected to the upper end of the anti-thunder cover (2), and the switch (4) is arranged on the surface of the relay (3).

2. The lightning protection printed circuit board of claim 1, wherein: the number of the piezoresistors (7) is five, the piezoresistors (7) are distributed at equal intervals along the transverse position of the lightning protection cover (2), and the piezoresistors (7) are kept connected with the ground wire (6).

3. The lightning protection printed circuit board of claim 1, wherein: the lightning protection cover (2) is connected with the relay (3) through a wire, and the relay (3) is connected with the lightning protection cover (2) and the circuit board (1) respectively and arranged in parallel.

4. The lightning protection printed circuit board of claim 1, wherein: the number of the clamping blocks (9) fixedly installed on the back surface of the relay (3) is three, and the number of the clamping blocks (9) is equal to that of the clamping seats (8).

5. The lightning protection printed circuit board of claim 1, wherein: the clamping seat (8) is movably provided with a fixed block (801), and the right end of the fixed block (801) is movably connected with an expansion spring (802) which is in a spiral shape and has a shape structure.

6. The lightning protection printed circuit board of claim 1, wherein: the lower end of the clamping seat (8) is provided with a sliding rail (804) in a penetrating mode, a sliding block (803) is movably arranged inside the sliding rail (804), and the sliding block (803) is fixedly connected with a fixing block (801).