CN218385221U

CN218385221U - One-way double-circuit TVS electrostatic protection device

Info

Publication number: CN218385221U
Application number: CN202222530964.XU
Authority: CN
Inventors: 陈伦森
Original assignee: Shenzhen Asim Electronic Co ltd
Current assignee: Shenzhen Asim Electronic Co ltd
Priority date: 2022-09-24
Filing date: 2022-09-24
Publication date: 2023-01-24
Anticipated expiration: 2032-09-24

Abstract

The utility model belongs to the technical field of the electronic circuit and specifically relates to an one-way double-circuit TVS electrostatic protection device, including one-way double-circuit TVS electrostatic protection device body, be provided with the dust cover on the one-way double-circuit TVS electrostatic protection device body, the upper end of dust cover is seted up flutedly, a plurality of groups's louvre has been seted up in the recess, a plurality of groups's radiating grooves have been seted up to the outer wall of dust cover, the upper end of dust cover is provided with the dust screen, the outside cover of dust cover is equipped with the insect-proof net, thereby blocks the dust through setting up dust screen and dust cover cooperation and reduce the absorptive dust of one-way double-circuit TVS electrostatic protection device body, and the one-way double-circuit TVS electrostatic protection device body of being convenient for dispels the heat, improves life, prevents to rush into the little worm on the one-way double-circuit TVS electrostatic protection device body through setting up the insect-proof net and arouses the circuit short circuit, improves the security of one-way double-way TVS electrostatic protection device body.

Description

Unidirectional double-circuit TVS electrostatic protection device

Technical Field

The utility model relates to an electronic circuit field especially relates to an one-way double-circuit TVS electrostatic protection device.

Background

Chinese patent publication No. CN212113721U discloses "a unidirectional two-way TVS electrostatic protection device", which includes: a first port, a second port, an ESD protection device, and a plurality of steering diodes; the ESD protection device comprises an MOS tube, and the guide diode comprises a first diode, a second diode, a third diode and a fourth diode; the drain electrode of the MOS tube is connected with the first port through a first diode and connected with the second port through a third diode; and the source electrode of the MOS tube is connected with the first port through a second diode and is connected with the second port through a fourth diode. The method has the characteristics of high failure current, high maintenance voltage, small layout area, dual-port protection and the like.

However, in practical use, the unidirectional double-circuit TVS electrostatic protection device is easy to adsorb dust, so that heat dissipation is poor, the service life of the protection device is influenced, and a small insect is easy to enter by mistake, so that a circuit is short-circuited, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving current one-way double-circuit TVS electrostatic protection device because the easy dust that adsorbs of itself leads to dispelling the heat not good when in-service use, influences the life of protection device to it leads to the circuit short circuit to go into little worm easily by mistake, causes shortcomings such as economic loss, and the one-way double-circuit TVS electrostatic protection device that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the design provides an one-way double-circuit TVS electrostatic protection device, includes one-way double-circuit TVS electrostatic protection device body, be provided with the dust cover on the one-way double-circuit TVS electrostatic protection device body, the upper end of dust cover is seted up flutedly, a plurality of groups's louvre has been seted up in the recess, a plurality of groups's radiating groove has been seted up to the outer wall of dust cover, the upper end of dust cover is provided with the dust screen, in the dust screen is fixed in the recess through fixed subassembly, the outside cover of dust cover is equipped with insect-proof net, fixed subassembly includes four groups and dust screen fixed connection's connecting plate, four groups the connecting plate sets up respectively in the four corners department of dust cover, the other end fixedly connected with round pin post of connecting plate, four groups and round pin post matched with slot have been seted up on the dust screen.

Preferably, the upper ends of the connecting plates are fixedly provided with poking plates, and the poking plates are arranged above the grooves.

Preferably, a dust collecting net is fixedly arranged on the dust screen, and the dust collecting net is sleeved on the upper end of the dust screen in a surrounding manner and is fixedly connected with the dust screen.

Preferably, the outer wall of the dust collecting net is fixedly connected with the outer wall of the connecting plate.

The utility model provides an one-way double-circuit TVS electrostatic protection device, its beneficial effect lies in: the dust is blocked by the dust screen and the dust cover in a matching manner, so that dust adsorbed by the unidirectional double-circuit TVS electrostatic protection device body is reduced, the heat dissipation of the unidirectional double-circuit TVS electrostatic protection device body is facilitated, and the service life is prolonged; collect the filterable dust of dust screen and be convenient for take out the clearance between dust screen and dust screen through setting up the dust collecting net, prevent to rush into the small insect on the one-way double-circuit TVS electrostatic protection device body through setting up the fly net and arouse the circuit short circuit, improve the security of one-way double-circuit TVS electrostatic protection device body.

Drawings

Fig. 1 is a schematic perspective view of a unidirectional two-way TVS electrostatic protection device according to the present invention;

fig. 2 is an enlarged schematic structural diagram of a part a of a unidirectional two-way TVS electrostatic protection device according to the present invention;

fig. 3 is a cross-sectional view of a unidirectional two-way TVS electrostatic protection device proposed by the present invention;

fig. 4 is an enlarged schematic structural diagram of a part B of an unidirectional two-way TVS electrostatic protection device provided by the present invention.

In the figure: 1. the TVS electrostatic protection device body comprises a one-way two-way TVS electrostatic protection device body; 2. a dust cover; 3. heat dissipation holes; 4. a heat sink; 5. a dust screen; 6. an insect-proof net; 7. a connecting plate; 8. a pin; 9. a dust collecting net; 10. a poking plate.

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.

Referring to fig. 1-4, an one-way double-circuit TVS electrostatic protection device, including one-way double-circuit TVS electrostatic protection device body 1, be provided with dust cover 2 on one-way double-circuit TVS electrostatic protection device body 1, the upper end of dust cover 2 is seted up flutedly, set up a plurality of groups louvre 3 in the recess, a plurality of groups radiating groove 4 have been seted up to the outer wall of dust cover 2, the upper end of dust cover 2 is provided with dust screen 5, dust screen 5 is fixed in the recess through fixed subassembly, the outside cover of dust cover 2 is equipped with insect-proof net 6, fixed subassembly includes four groups and dust screen 5 fixed connection's connecting plate 7, four groups of connecting plate 7 set up respectively in dust cover 2's four corners department, the other end fixedly connected with round pin post 8 of connecting plate 7, set up four groups and round pin post 8 matched with slot on the dust cover 2, thereby it hinders the dust through setting up dust screen 5 and dust cover 2 cooperation and block dust and reduce the adsorbed dust of one-way double-way TVS electrostatic protection device body 1, be convenient for two-way TVS electrostatic protection device body 1 dispels heat, service life is improved, prevent that the one-way double-way TVS electrostatic protection device body 1 from rushing into the short circuit electrostatic protection from rushing into the thing through setting up insect 6.

The upper end of connecting plate 7 is all fixed and is provided with stirring board 10, and stirring board 10 all sets up in the top of recess, is convenient for take out connecting plate 7, round pin 8 and dust screen 5 and clears up the change.

The dust screen 5 is fixedly provided with a dust collecting net 9, the dust collecting net 9 is sleeved on the upper end of the dust screen 5 and fixedly connected with the dust screen 5, and dust is collected between the dust screen 5 and the dust collecting net 9, so that the dust can be conveniently taken out and cleaned.

The outer wall of the dust collecting net 9 is fixedly connected with the outer wall of the connecting plate 7, so that the dust collecting net 9 cannot deform and collapse when in use.

The utility model discloses, thereby block the dust through setting up dust screen 5 and the cooperation of dust cover 2 and reduce the absorptive dust of one-way double-circuit TVS electrostatic protection device body 1 during the use, the one-way double-circuit TVS electrostatic protection device body 1 heat dissipation of being convenient for, and service life is prolonged, prevent to rush into the small insect on the one-way double-circuit TVS electrostatic protection device body 1 through setting up insect-proof net 6 and arouse the circuit short circuit, improve the security of one-way double-circuit TVS electrostatic protection device body 1, collect the dust between dust screen 5 and dust-collecting net 9, be convenient for take out the clearance.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an one-way double-circuit TVS electrostatic protection device, includes one-way double-circuit TVS electrostatic protection device body (1), its characterized in that, be provided with dust cover (2) on one-way double-circuit TVS electrostatic protection device body (1), the upper end of dust cover (2) is seted up flutedly, a plurality of sets of louvre (3) have been seted up in the recess, a plurality of sets of radiating groove (4) have been seted up to the outer wall of dust cover (2), the upper end of dust cover (2) is provided with dust screen (5), in dust screen (5) are fixed in the recess through fixed subassembly, the outside cover of dust cover (2) is equipped with insect-proof net (6), fixed subassembly includes four groups and dust screen (5) fixed connection's connecting plate (7), four groups connecting plate (7) set up respectively in the four corners department of dust cover (2), the other end fixedly connected with round pin post (8) of connecting plate (7), four groups and round pin post (8) matched with slot have been seted up on dust cover (2).

2. The TVS electrostatic protection device according to claim 1, wherein the upper ends of the connecting plates (7) are fixedly provided with poking plates (10), and the poking plates (10) are arranged above the grooves.

3. The TVS electrostatic protection device according to claim 1, wherein a dust collecting net (9) is fixedly disposed on the dust collecting net (5), the dust collecting net (9) is sleeved around the upper end of the dust collecting net (5) and is fixedly connected with the dust collecting net (5).

4. A unidirectional double-circuit TVS electrostatic protection device as claimed in claim 3, wherein said dust collecting net (9) is fixedly connected to the outer wall of said connection plate (7).