CN201697077U

CN201697077U - LED driving power

Info

Publication number: CN201697077U
Application number: CN2010202357148U
Authority: CN
Inventors: 杨敏
Original assignee: GUANGZHOU TOPDAY ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU TOPDAY ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2010-06-23
Filing date: 2010-06-23
Publication date: 2011-01-05
Anticipated expiration: 2020-06-23

Abstract

The utility model discloses an LED driving power, comprising a power case, a circuit board arranged in the power case and a pressure balance respirator. The two ends of the power case are open and are connected with end covers, an end cover groove is arranged on one face of each end cover, which is jointed with the end part of the power case, and a seal rubber ring matched with the end cover groove is arranged in the end cover groove. The pressure balance respirator penetrates through the plane of the end cover to extend into the power case. The driving power has waterproof and anti-ultraviolet effects, can still keep favorable working state even working outdoor under severe condition for a long time, can effectively prevent the generation of water vapor and ensure the use safety. Sealant is not needed to fill in the power case so that the material cost is reduced, good heat dispersion in the power case is ensured, and the service life of the driving power is prolonged.

Description

A kind of LED driving power

Technical field

The utility model relates to the driving power technical field, especially a kind of LED driving power.

Background technology

Existing LED driving power need pour into the silica gel sealing circuit board in the power supply shell just can reach IP67, yet perfusion silica gel can cause following problem:

1, sealing silica gel can cause the circuit board electronic devices and components on the driving power stressed, causes reliability to reduce.

2, the cost of silica gel is higher.

3, can there be the problem of heat radiation in sealing silica gel, and the heat that electronic devices and components produce is difficult to scatter from power pack, can influence the service life of driving power for a long time.

The utility model content

The purpose of this utility model is to overcome prior art because perfusion sealing silica gel influences the technical problem of LED driving power reliability and heat radiation, and a kind of LED driving power that need not to pour into silica gel is provided.

For realizing above purpose, the utility model has been taked following technical scheme: a kind of LED driving power, the power pack that comprises both ends open, the power pack two ends are connected with end cap, be arranged on the circuit board in the power pack, the one side of fitting in described end cap and power pack end is provided with the end cap groove, is provided with the O-ring seal with end cap groove coupling in this end cap groove; Also include the pressure balance respirator, this pressure balance respirator passes the end cap plane and extend in the power pack.

O-ring seal is embedded in the end cap aluminium groove, plays antiultraviolet and waterproof effect; Street lamp in use, airborne gaseous state aqueous vapor enters into street lamp, under the hot environment of street lamp, make vaporous water become aqueous water, aqueous water for a long time in light fixture accumulation can cause the blast of street lamp easily, by adopting the pressure balance respirator, can play the effect of balance shell inside and outside pressure, make the aqueous vapor molecule can not enter in the housing, effectively guarantee the security performance of driving power.

Be provided with first screw on the outer side of described end cap, O-ring seal is provided with second screw that is complementary with first screwhole position, has that screw passes first screw successively, second screw is anchored on end cap and O-ring seal on the end of power pack.Screw is to follow closely on the outer surface of power pack end cap, and the structure of screw screw fixed in power pack with respect to traditional can better play waterproof and sealing effectiveness.

The utility model compared with prior art has following advantage: driving power of the present utility model has the effect of waterproof, antiultraviolet, makes driving power for a long time out of doors, still can keep good working order under the mal-condition; Can effectively prevent the generation of steam, guarantee the safety in utilization of driving power; Owing to do not need to pour into fluid sealant in the power pack, therefore reduced material cost, and guaranteed to have good performance of heat dissipation in the power pack, prolonged the service life of driving power.

Description of drawings

Fig. 1 is the utility model decomposing schematic representation;

Description of reference numerals: 1-screw, the 2-first anti-head, 3-power pack, 4-O-ring seal, 41-second screw, 5-end cap, 51-end cap groove, 52-first screw, 6-pressure balance respirator, 7-circuit board, the 8-second anti-head.

The specific embodiment

Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.

Embodiment:

See also shown in Figure 1, a kind of LED driving power, the power pack 3 that comprises both ends open, power pack 3 two ends are connected with end cap 5, be arranged on the circuit board 7 in the power pack 3, end cap 5 is provided with end cap groove 51 with the one side of fitting in power pack 3 ends, is provided with the O-ring seal 4 with end cap groove coupling in this end cap groove 51; Also include pressure balance respirator 6, this pressure balance respirator 6 passes end cap 5 planes and extend in the power pack 3.

Further, on the outer side of end cap 5, be provided with first screw 52, O-ring seal 4 is provided with second screw 41 that is complementary with first screw, 52 positions, has that screw 1 passes first screw 52 successively, second screw 41 is anchored on end cap 5 and O-ring seal 4 on the end of power pack 3.

Also be respectively equipped with the first anti-head 2 and second anti-head 8, the first anti-heads 2 employing M16 types on the end face of end cap 5, the second anti-head adopts the M12 model.

Present embodiment uses the seal of die casting aluminium as power pack.

Above-listed detailed description is at the specifying of the utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.

Claims

1. LED driving power comprises the power pack (3) of both ends open, and power pack (3) two ends are connected with end cap (5), are arranged on the circuit board (7) in the power pack (3),

It is characterized in that: described end cap (5) is provided with end cap groove (51) with the one side of fitting in power pack (3) end, is provided with the O-ring seal (4) with end cap groove coupling in this end cap groove (51); Also include pressure balance respirator (6), this pressure balance respirator (6) passes end cap (5) and extend in the power pack (3).

2. LED driving power as claimed in claim 1, it is characterized in that: on the outer side of described end cap (5), be provided with first screw (52), O-ring seal (4) is provided with second screw (41) that is complementary with first screw (52) position, has that screw (1) passes first screw (52) successively, second screw (41) is anchored on end cap (5) and O-ring seal (4) on the end of power pack (3).