CN2882104Y

CN2882104Y - Lamp bridge rectifier with protection function

Info

Publication number: CN2882104Y
Application number: CN 200520147071
Authority: CN
Inventors: 赵文兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-29
Filing date: 2005-12-29
Publication date: 2007-03-21
Anticipated expiration: 2015-12-29

Abstract

The utility model relates to a bridge rectifier for lamps with protection function, which comprises two rectifying diodes and two one-way instantaneous voltage suppressors. The utility model supplies power to an electronic control circuit or a disconnect-type electronic part by converting AC into DC through two rectifying diodes without increasing numbers of internal elements hence volume. When any surge enters into a room through the power feeding line, the two one-way instantaneous voltage suppressors in the rectifier will suppress the surge, which can protect the electronic line at post end of the rectifier. With above structure, the utility model reduces elements and space, is light, thin, short and small, is easy to assemble and use, and hence saves the manufacturing cost.

Description

The light fixture bridge rectifier of tool defencive function

Technical field

A kind of light fixture bridge rectifier of the utility model; particularly do not increasing inner member and causing volume to become under the big situation; have rectification and prevent the surging entry-line; so reduce the number of component space to reach; make it to be compact volume and be easy to the assembling use, and then can save the light fixture bridge rectifier of the tool defencive function of manufacturing cost.

Background technology

Along with the electronic market is constantly developed, industry is also constantly pursued quality to electronic product, and profile is towards gently, thin, short, little project organization satisfies the demand in market, and with known to the present bridge rectifier (BridgeRectifier), system is constituted with four diode A, it places power-supply circuit foremost, provide electric energy to electronic control circuit or separate type electronic component alternating current is converted to direct current, and when the surge signal that thunderbolt is arranged out of doors imports within doors via feed line, this moment is not if do electronic control circuit or the separate type electronic component of protecting processing, the noise that then is struck by lightning directly to enter this rectifier and destroying the rear end immediately; Therefore, existing settling mode promptly installs a surge absorber B (Varistor) additional before this rectifier, as shown in Figure 1, and to protect the electronic control circuit of this rectifier rear end.

So, just as preceding go up indication towards light, thin, short, little design trend, had the generation of the effect of protection although it is so; but make original volume become big; this can cause on whole spatial design and be subjected to white elephant, also can increase out in manufacturing cost certainly, and is unsatisfactory.

The above-described problem of mirror is arranged, and the applicant develops author content of the present utility model then, to solve present technical bottleneck.Wherein

Novel content

Main purpose of the present utility model is, a kind of light fixture bridge rectifier of tool defencive function is provided, and to overcome the above-mentioned defective of traditional structure, surge signal can be done and suppress to handle, and volume is less.

The utility model structure: a kind of light fixture bridge rectifier of tool defencive function is made of two rectifier diodes and two unidirectional transient voltage inhibitor; It is characterized in that, two alternating current inputs of this bridge rectifier lay respectively at a rectifier diode by end and in a flash between the input of voltage suppressor; The direct current negative pole of output end of this bridge rectifier is between two of two rectifier diodes relative inputs, and direct current output head anode two relative between end in two transient voltage inhibitor.

According to said structure, two unidirectional transient voltage inhibitor in this rectifier are thunderbolt surge signal inhibitor, and it has especially at having high voltage, big electric current, and the special construction that suppresses of of short duration thunderbolt surge signal of time.

The utility model beneficial effect: according to said structure, the utility model only is made of two rectifier diodes and two unidirectional transient voltage inhibitor, it is had is not simultaneously increasing inner member and is causing volume to become under the big situation, convert alternating current to direct current electric energy is provided, and surge signal can be done the effect that suppresses processing, so reach and reduce the number of component space, and volume is compact and is easy to assembling and uses, and then saved manufacturing cost.

Description of drawings

Fig. 1: be the diagram of traditional structure.

Fig. 2: diagram of the present utility model.

Embodiment

At first, see also shown in the detailed description of Fig. 2: the light fixture bridge rectifier of a kind of tool defencive function of the utility model, constituted by two rectifier diodes 1 and two unidirectional transient voltage inhibitor 2 (Transitnt voitagesuppressor is called for short TVS); Two alternating current inputs of this bridge rectifier lay respectively at a rectifier diode 1 by end and in a flash between the input of voltage suppressor 2; The direct current negative pole of output end of this bridge rectifier is between two of two rectifier diodes 1 relative inputs, and direct current output head anode two relative between end in two transient voltage inhibitor 2.

Especially, two unidirectional transient voltage inhibitor in this rectifier can be selected thunderbolt surge signal inhibitor for use, and it has especially at having high voltage, big electric current, and the special construction that suppresses of of short duration thunderbolt surge signal of time.

Thus, do not increase inner member and do not cause volume to become under the big situation at the utility model, the direct current that alternating current is converted to by two rectifier diodes 1 provides electric energy to use to electronic control circuit or separate type electronic component; As thunderbolt or use, when starting, if when having surge signal to import within doors via feed line, then should be struck by lightning immediately and wait the surging noise to do the inhibition processing, can protect electronic circuit then in the rectifier rear end by two in this rectifier unidirectional transient voltage inhibitor 2; Thereby, do not increase under the space to reduce the number of most the element mode, reach compact volume, be easy to assembling and use, also saved manufacturing cost.

To sum up institute is old, and the utility model has above-described practicality place really, awards standard legal patent right establishment when constituting the key element that patent is set up, earnestly asking.

Claims

1. the light fixture bridge rectifier of a tool defencive function is made of two rectifier diodes and two unidirectional transient voltage inhibitor; It is characterized in that, two alternating current inputs of this bridge rectifier lay respectively at a rectifier diode by end and in a flash between the input of voltage suppressor; The direct current negative pole of output end of this bridge rectifier is between two of two rectifier diodes relative inputs, and direct current output head anode two relative between end in two transient voltage inhibitor.

2. a kind of according to claim 1 light fixture bridge rectifier of tool defencive function is characterized in that: two unidirectional transient voltage inhibitor in this rectifier are thunderbolt surge signal inhibitor.