CN215187902U

CN215187902U - Circuit board short-circuit protection device

Info

Publication number: CN215187902U
Application number: CN202023052054.2U
Authority: CN
Inventors: 张泽武
Original assignee: Shenzhen Stenyu Electronic Technology Co ltd
Current assignee: Shenzhen Stenyu Electronic Technology Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-12-14
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a circuit board short-circuit protection device, which comprises a housin, one side that the casing lateral wall was kept away from each other is close to top position both ends symmetry and opens and has two constant head tanks, the bottom has cup jointed first spring near the equal fixedly connected with guide bar of four corners and guide bar face bottom position in the casing. The utility model discloses in, through setting up casing, flat board, guide bar, sleeve, L template, locating hole, rectangle pole, spout, third spring and L type pole, the personnel of being convenient for realize the third spring compression through pressing down L type pole, and then realize that L type pole is accomodate into the spout, the personnel of being convenient for put the rectangle pole between two L templates, realize the rigidity of rectangle pole through L type pole and locating hole cooperation simultaneously, and then the personnel of being convenient for place a plurality of circuit boards simultaneously.

Description

Circuit board short-circuit protection device

Technical Field

The utility model relates to a circuit board field especially relates to a circuit board short-circuit protection device.

Background

The circuit board (FPC circuit board is also called flexible circuit board) is a flexible printed circuit board which is made of polyimide or polyester film as a base material and has high reliability and excellent flexibility and has the characteristics of high wiring density, light weight, thin thickness and good bending property) and a Soft and hard combination board (PCB), the birth and development of FPC and PCB are promoted, and a new product of the Soft and hard combination board is produced.

However, when a person installs and fixes the circuit board, the person directly fixes the circuit board in the device, and therefore the circuit board may be directly short-circuited due to component damage, weather condition influence or artificial damage, and further damage to the whole device is caused, and loss is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a short-circuit protection device for a circuit board.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a short circuit protection device of a circuit board comprises a shell, wherein two positioning grooves are symmetrically formed at two ends of one side of the outer side wall of the shell, which is far away from each other and is close to the top, the bottom of the shell is fixedly connected with guide rods near the four corners, the bottom of the guide rod is sleeved with a first spring, a flat plate is arranged at the bottom in the shell, L-shaped plates are fixedly connected to the top of the flat plate close to four corners, a plurality of uniformly distributed positioning holes are symmetrically formed in one side of the four L-shaped plates close to two L-shaped plates, a rectangular rod is arranged in the middle of the position between the four L-shaped plates close to two L-shaped plates, two sliding grooves are symmetrically formed in two ends of the rectangular rod, a through groove is formed in the center of one side of the two sliding grooves close to the middle of the flat plate, a third spring is fixedly connected to the center of one side of the two sliding grooves close to the middle of the rectangular rod, and a cover plate is arranged at the top of the shell;

the cover plate bottom is close to the equal fixedly connected with sleeve in four turning positions and the apron is close to one side lateral wall that the constant head tank was kept away from each other and is close to both ends position symmetry and open and have two first rectangular channels, first rectangular channel is close to apron middle part position one side center department fixedly connected with second spring.

As a further description of the above technical solution:

the top of the flat plate is close to the four corners and penetrates through the guide rod to be connected with the guide rod in a sliding mode, and the end face of the bottom of the flat plate is fixedly connected with the end face of the top of the first spring.

As a further description of the above technical solution:

the utility model discloses a PVC dust screen, including casing, casing lateral wall, louvre and louvre, casing lateral wall one side center department fixedly connected with conduit, the conduit is close to casing lateral wall one end and runs through the casing and outwards extend and has cup jointed the pyrocondensation pipe, the casing lateral wall is close to conduit one side center department and has evenly seted up a plurality of louvres and the louvre is provided with the PVC dust screen.

As a further description of the above technical solution:

two the equal fixedly connected with L type piece of one end that the third spring kept away from each other, L type piece is close to locating hole one end and locating hole inside wall sliding connection and L type piece is close to logical groove one side and leads to groove inside wall sliding connection.

As a further description of the above technical solution:

the sleeve is matched with the guide rod in position, and the inner side wall of the sleeve is connected with the outer side wall of the guide rod in a sliding mode.

As a further description of the above technical solution:

the second spring is kept away from apron middle part position one end fixedly connected with U type pole and be close to casing one side and constant head tank inside wall sliding connection.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up casing, flat board, guide bar, sleeve, L template, locating hole, rectangle pole, spout, third spring and L type pole, the personnel of being convenient for realize the third spring compression through pressing L type pole, and then realize that L type pole is accomodate into the spout, the personnel of being convenient for put the rectangle pole between two L templates, realize the rigidity of rectangle pole through L type pole and locating hole cooperation simultaneously, and then the personnel of being convenient for place a plurality of circuit boards simultaneously.

2. The utility model discloses a set up apron, first rectangular channel, second spring, U type pole, constant head tank and louvre, the personnel of being convenient for stimulate U type pole and realize the extension of second spring, and the sliding connection through U type pole and constant head tank can realize simultaneously that the quick installation of apron position is fixed, and the louvre can realize scattering and disappearing of casing internal temperature simultaneously, guarantees the operating temperature of circuit board, prevents that the circuit board from causing the component to damage owing to high temperature, causes the circuit board short circuit.

Drawings

Fig. 1 is a front sectional view of a short-circuit protection device for a circuit board according to the present invention;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a schematic structural view of the rectangular bar of fig. 1.

Illustration of the drawings:

1. a flat plate; 2. a first spring; 3. a guide bar; 4. a rectangular bar; 5. a sleeve; 6. an L-shaped plate; 7. Positioning holes; 8. an L-shaped block; 9. a second spring; 10. a first rectangular groove; 11. a through groove; 12. a third spring; 13. a U-shaped rod; 14. positioning a groove; 15. heat dissipation holes; 16. a conduit; 17. a housing; 18. a cover plate; 19. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a short-circuit protection device for circuit boards comprises a shell 17, which is convenient for placing a plurality of circuit boards through the shell 17 and protecting the circuit boards simultaneously, and prevents the circuit boards from being affected with damp and short-circuited, wherein two positioning grooves 14 are symmetrically arranged at two ends of one side, which is far away from the top, of the outer side wall of the shell 17, a guide rod 3 is fixedly connected at the bottom of the shell 17 near four corners, a first spring 2 is sleeved at the bottom of the guide rod 3, as shown in figure 1, the first spring 2 is in a compressed state, a flat plate 1 is arranged at the bottom of the shell 17, L-shaped plates 6 are fixedly connected at the top of the flat plate 1 near the four corners, the flat plate 1 is convenient for placing the circuit boards, the four L-shaped plates 6 can realize the blocking and positioning effects on the peripheral sides of the circuit boards, a plurality of positioning holes 7 which are uniformly distributed are symmetrically arranged at one side, which is close to the two L-shaped plates 6, a rectangular rod 4 is arranged at the middle position between two adjacent L-shaped plates 6 of the four L-shaped plates 6, two sliding grooves 19 are symmetrically formed in the two ends of the rectangular rod 4, a circuit board is arranged at the top of the rectangular rod 4, the bottom of the circuit board is conveniently supported through the rectangular rod 4, meanwhile, a plurality of rectangular rods 4 can be arranged to realize the installation of a plurality of circuit boards, a through groove 11 is formed in the center of one side, close to the middle position of the flat plate 1, of the two sliding grooves 19, a third spring 12 is fixedly connected to the center of one side, close to the middle position of the rectangular rod 4, of the two sliding grooves 19, a cover plate 18 is arranged at the top of the shell 17, rubber pads are arranged on the periphery of the bottom of the cover plate 18, and dust is prevented from entering the shell 17;

the bottom of the cover plate 18 is close to the four corners and is fixedly connected with the sleeve 5, the outer side wall of one side, which is close to the positioning groove 14 and is far away from each other, of the cover plate 18 is symmetrically provided with two first rectangular grooves 10 close to the two ends, and the first rectangular grooves 10 are close to the center of one side of the middle position of the cover plate 18 and are fixedly connected with second springs 9.

The top of the flat plate 1 is close to four corners and penetrates through the guide rod 3 to be connected with the guide rod 3 in a sliding manner, the bottom end face of the flat plate 1 is fixedly connected with the top end face of the first spring 2, when the cover plate 18 is opened, the first spring 2 is reset to realize that the flat plate 1 stably moves upwards under the action of the guide rod 3, so that personnel can conveniently install and replace a circuit board, a conduit 16 is fixedly connected with the center of one side of the inner side wall of the shell 17, one end, close to the inner side wall of the shell 17, of the conduit 16 penetrates through the shell 17 to extend outwards and is sleeved with a heat shrink tube, the personnel can conveniently install the wires of the circuit board through the conduit 16, the heat shrink tube can realize the sealing of the conduit 16, a plurality of heat dissipation holes 15 are uniformly formed in the center of one side of the outer side wall of the shell 17, the heat dissipation holes 15 are provided with PVC dust screens, dust can be prevented from entering the shell 17 while heat dissipation is carried out, and the circuit board is damaged, two equal fixedly connected with L type pieces 8 of one end that third spring 12 kept away from each other, L type piece 8 is close to 7 one ends of locating hole and 7 inside wall sliding connection of locating hole and L type piece 8 are close to lead to groove 11 one side and lead to 11 inside wall sliding connection, the personnel of being convenient for realize the compression of third spring 12 through pressing L type piece 8, and then the personnel of being convenient for place rectangle pole 4 between two close L templates 6, sleeve 5 and 3 position phase-matchs of guide bar and sleeve 5 inside wall and 3 outside wall sliding connection of guide bar, be convenient for realize pushing down of dull and stereotyped 1 through sleeve 5, second spring 9 keeps away from apron 18 middle part position one end fixedly connected with U type pole 13 and is close to casing 17 one side and constant head tank 14 inside wall sliding connection, be convenient for realize the quick installation of apron 18 through U type pole 13 and constant head tank 14 inside wall sliding connection.

The working principle is as follows: personnel realize the compression of third spring 12 through the L type piece 8 of pressing both sides, and then make things convenient for personnel to place rectangle pole 4 between two close L templates 6, after the position of adjustment rectangle pole 4, L type piece 8 realizes under the reset action of third spring 12 that L type piece 8 gets into in locating hole 7, and then realize the rigidity of rectangle pole 4, the fixed back of accomplishing of a plurality of rectangle pole 4 installations, personnel put a plurality of circuit boards at rectangle pole 4 tops, the wire of circuit board stretches out casing 17 through conduit 16, then, personnel realize the quick installation of apron 18 through the sliding connection of sleeve 5 with guide bar 3, and realize U type pole 13 entering constant head tank 14 through pulling U type pole 13, realize that the installation of apron 18 is fixed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A short-circuit protection device for a circuit board comprises a shell (17), and is characterized in that: one side that casing (17) lateral wall kept away from each other is close to top position both ends symmetry and opens and has two constant head tanks (14), bottom has been close to the equal fixedly connected with guide bar (3) of four corners and guide bar (3) face bottom position and has cup jointed first spring (2) in casing (17), bottom is provided with dull and stereotyped (1) and dull and stereotyped (1) top and is close to the equal fixedly connected with L template (6) in four corners positions, four locating hole (7) that have a plurality of evenly distributed are opened to two close L templates (6) relative one side symmetry in L template (6), four middle part position all is provided with in rectangle pole (4) and rectangle pole (4) both ends symmetry and opens and has two spout (19), two near flat board (1) middle part position one side center department opens and has logical groove (11) and two spout (19) in being close to rectangle pole (4) in spout (19) A third spring (12) is fixedly connected to the center of one side of the position, and a cover plate (18) is arranged at the top of the shell (17);

the utility model discloses a well lid, including apron (18), the equal fixedly connected with sleeve (5) in apron (18) bottom is close to four turning positions and apron (18) are close to one side lateral wall that constant head tank (14) kept away from each other and are close to both ends position symmetry and open and have two first rectangular channels (10), first rectangular channel (10) are close to apron (18) middle part position one side center department fixedly connected with second spring (9).

2. A circuit board short circuit protection device according to claim 1, wherein: the top of the flat plate (1) is close to four corners and penetrates through the guide rod (3) and the guide rod (3) in a sliding connection mode, and the end face of the bottom of the flat plate (1) is fixedly connected with the end face of the top of the first spring (2).

3. A circuit board short circuit protection device according to claim 1, wherein: fixedly connected with conduit (16) is located at casing (17) inside wall one side center, conduit (16) are close to casing (17) inside wall one end and run through casing (17) and outwards extend and have cup jointed the pyrocondensation pipe, casing (17) lateral wall is close to conduit (16) one side center department and evenly has seted up a plurality of louvres (15) and louvre (15) and is provided with the PVC dust screen.

4. A circuit board short circuit protection device according to claim 1, wherein: two the equal fixedly connected with L type piece (8) of one end that third spring (12) kept away from each other, L type piece (8) are close to locating hole (7) one end and locating hole (7) inside wall sliding connection and L type piece (8) are close to logical groove (11) one side and lead to groove (11) inside wall sliding connection.

5. A circuit board short circuit protection device according to claim 1, wherein: the sleeve (5) is matched with the guide rod (3) in position, and the inner side wall of the sleeve (5) is connected with the outer side wall of the guide rod (3) in a sliding mode.

6. A circuit board short circuit protection device according to claim 1, wherein: one end, far away from the middle part of the cover plate (18), of the second spring (9) is fixedly connected with a U-shaped rod (13), and one side, close to the shell (17), of the U-shaped rod (13) is connected with the inner side wall of the positioning groove (14) in a sliding mode.