CN202546667U

CN202546667U - Separated driving circuit structure for light-emitting diode (LED) lamp tube

Info

Publication number: CN202546667U
Application number: CN2012200456345U
Authority: CN
Inventors: 李逢滨; 刘峻辰; 张裕宽
Original assignee: VERTICIL ELECTRONICS CO Ltd
Current assignee: Yang power electronic Limited by Share Ltd
Priority date: 2012-02-13
Filing date: 2012-02-13
Publication date: 2012-11-21
Anticipated expiration: 2022-02-13

Abstract

The utility model discloses a separated driving circuit structure for a light-emitting diode (LED) lamp tube. The LED lamp tube comprises a lamp shade and at least one LED light bar arranged inside the lamp shade, wherein separated driving circuit structures are respectively formed on the left and right sides of the LED light bars inside the lamp shade; and the separated driving circuit structures at two ends are connected through a transmission line, so that a driving circuit which can drive the LED light bars to shine can be formed according to the separated driving circuit structures at the two ends, and according to the separated driving circuit structures, the tube diameter of the lamp shade can be effectively reduced.

Description

The separate type driving circuit structure that is used for the LED fluorescent tube

Technical field

The utility model is relevant for a kind of separate type driving circuit structure that is used for the LED fluorescent tube; Be meant the driving circuit structure of the LED lamp bar right ends that a kind of LED of being arranged at fluorescent tube is inner especially; And form a driving loop by the driving circuit structure of right ends, shinny to drive this LED lamp bar.

Background technology

LED (light emitting diode) because have power saving, long service life, advantage such as volume is little, reaction speed is fast, so can be used in all kinds of lighting fields at large; The LED fluorescent tube that has the dealer to develop at present alternative fluorescent tube; And existing LED fluorescent tube can in the strip lampshade, be provided with about two LED lamp bars, and on the inner both sides of strip lampshade, all be provided with the driving circuit structure that is connected with this LED lamp bar again, luminous with this LED lamp bar of both-end driving;

And except the structure that both-end drives; More there is manufacturer to develop the luminous LED fluorescent tube 1 of the single LED lamp of single-ended drive bar; Like Fig. 1 and shown in Figure 2; Manufacturer attempts in strip lampshade 11, only placing a longer LED lamp bar 12, and that this LED lamp bar 12 also carries out driving LED lamp 121 by one drive circuit 13 is shinny; But embodiment so; In order to drive longer LED lamp bar 12; So number of elements and size on the drive circuit 13 will increase; Therefore the caliber of strip lampshade 11 must increase, and can make this drive circuit 13 can be placed in this strip lampshade 11 inside, and the caliber of increase strip lampshade 11 also can increase its manufacturing cost simultaneously.

Therefore; If can driving circuit structure be divided into two; And it is arranged at the inner left and right sides of strip lampshade, and so can reduce the occupied accommodation space of drive circuit, also can reduce the caliber size of this strip lampshade simultaneously; So that fluorescent tube can downsizing, so should be a best solution.

The utility model content

The utility model promptly is to provide a kind of driving circuit structure of the LED of being arranged at lamp bar right ends, and forms a driving loop by the driving circuit structure of right ends, and is shinny to drive this LED lamp bar.

Can reach the separate type driving circuit structure that is used for the LED fluorescent tube of above-mentioned novel purpose; Wherein this LED fluorescent tube has comprised a lampshade and at least one and has been arranged at the inner LED lamp bar of this lampshade; The inner LED lamp bar left and right sides of this lampshade is respectively arranged with a separate type driving circuit structure; And the separate type driving circuit structure at two ends is connected by a transmission lines, and the separate type driving circuit structure at two ends can form one and can drive the shinny driving loop of this LED lamp bar whereby.

In particular, have several light emitting diodes on the said LED lamp bar.

In particular, said lampshade is a strip.

In particular, the separate type driving circuit structure at said two ends is connected forming a complete driving circuit structure by transmission line, and wherein the separate type driving circuit structure of an end is connected with this LED lamp bar and to drive this LED lamp bar shinny.And complete driving circuit structure has comprised an EMI filter circuit module, a rectification circuit module, a LED control circuit module and be used for the circuit module of driving LED fluorescent tube; Wherein this LED control circuit module is connected with this LED lamp bar, and is shinny to drive this LED lamp bar.

In particular, the separate type driving circuit structure of a said wherein end is the combination of EMI filter circuit module and rectification circuit module, and the other end then is LED control circuit module and the combination that is used for the circuit module of driving LED fluorescent tube.

The beneficial effect of the utility model is:

1. the utility model uses transmission line that the driving circuit structure of right ends is connected to form a driving loop in order to driving LED lamp bar, reaches the purpose that the fluorescent tube caliber dwindles.

2. the driving circuit structure at two ends that the utility model is separated out can be saved the accommodation space of driving circuit structure, also can reduce the manufacturing cost of LED fluorescent tube simultaneously.

Description of drawings

Fig. 1 is the structural representation of existing LED fluorescent tube;

Fig. 2 is the structure side view of existing LED fluorescent tube;

Fig. 3 is used for the overall structure sketch map of the separate type driving circuit structure of LED fluorescent tube for the utility model;

Fig. 4 is used for the overall structure side view of the separate type driving circuit structure of LED fluorescent tube for the utility model; And

Fig. 5 is used for the complete drive circuit structure sketch map of the separate type driving circuit structure of LED fluorescent tube for the utility model.

Wherein:

The specific embodiment

Relevant for the aforementioned of the utility model and other technology contents, characteristics and effect, in the following detailed description that cooperates with reference to graphic preferred embodiment, can clearly appear.

See also Fig. 3 and Fig. 4; The structural representation and the side view that are used for the separate type driving circuit structure of LED fluorescent tube for the utility model; By knowing among the figure; This LED fluorescent tube 2 has comprised a lampshade 21 and at least one is arranged at the LED lamp bar 22 of these lampshade 21 inside; And these lampshade 21 inner LED lamp bar 22 left and right sides are respectively arranged with a separate type driving circuit structure 231,232; And the separate type driving circuit structure 231,232 at two ends is split to form by 23 of complete driving circuit structures, so the separate type driving circuit structure 231,232 at two ends must be connected by a transmission line 233, can drive these LED lamp bar 22 shinny driving loops and (relatively obviously can know among Fig. 4 of Fig. 2 of prior art and the utility model so that the separate type driving circuit structure 231,232 at two ends can form one; The separate type driving circuit structure can effectively reduce the caliber size of lampshade, so that fluorescent tube can downsizing); Therefore; The separate type driving circuit structure 231,232 at two ends is connected to form a complete driving circuit structure 23 by transmission line 233; And complete driving circuit structure 23; As shown in Figure 5, comprised an EMI filter circuit module 2301, a rectification circuit module 2302, a LED control circuit module 2303 and other are used for the circuit module (not shown) of driving LED fluorescent tube, wherein this EMI filter circuit module 2301 is in order to carry out Filtering Processing with the alternating current that is received; With the unnecessary assorted letter of filtering; This rectification circuit module 2302 then converts filtered AC signal (string ripple) into direct current signal (semifocal chord ripple), and with direct current signal import this with LED control circuit module 2303 that LED lamp bar 22 is connected in, shinny to drive this LED lamp bar 22.

Therefore; The preferred forms of the utility model then is that EMI filter circuit module 2301 and rectification circuit module 2302 are arranged on the separate type driving circuit structure 231 of first end; First end separate type driving circuit structure 231 then be directly to be connected with extraneous AC power; But, therefore can not directly be connected with LED lamp bar 22 because in the separate type driving circuit structure 231 of first end LED control circuit module 2303 is not set;

LED control circuit module 2303 then is to be arranged on the separate type driving circuit structure 232 of second end; Therefore the separate type driving circuit structure 232 of this second end more can be connected with LED lamp bar 22; So when the separate type driving circuit structure 232 of second end uses transmission line 233 to be connected with the separate type driving circuit structure 231 of first end; Direct current signal can be imported in the LED control circuit module 2303; And provide LED lamp bar 22 shinny power supply by this LED control circuit module 2303, shinny with the LED lamp 221 that drives this LED lamp bar 22.

In addition; Except above-mentioned embodiment; Also can look circuit framework selects EMI filter circuit module 2301, rectification circuit module 2302 and LED control circuit module 2303 are arranged at the LED lamp tube ends respectively; Unique state that must meet is, the separate type driving circuit structure 231,232 1 at two ends is connected via transmission line 233 can form a complete driving circuit structure 23, so that it is shinny to drive this LED lamp bar 22.The separate type driving circuit structure that is used for the LED fluorescent tube that the utility model provided when comparing each other with other prior aries, has more and gets the row advantage ready:

By the detailed description of above preferred embodiment, hope can be known the characteristic and spirit of describing the utility model more, and is not to come the category of the utility model is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain in the category of the claim that is arranged in the desire application of the utility model institute of various changes and tool equality.

Claims

1. separate type driving circuit structure that is used for the LED fluorescent tube; Wherein this LED fluorescent tube has comprised a lampshade and at least one and has been arranged at the inner LED lamp bar of this lampshade; It is characterized in that: the inner LED lamp bar left and right sides of this lampshade is respectively arranged with a separate type driving circuit structure; And the separate type driving circuit structure at two ends is connected by a transmission lines, and the separate type driving circuit structure at two ends can form one and can drive the shinny driving loop of this LED lamp bar whereby.

2. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 1 is characterized in that, has several light emitting diodes on this LED lamp bar.

3. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 1 is characterized in that this lampshade is a strip.

4. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 1; It is characterized in that; The separate type driving circuit structure at two ends is connected forming a complete driving circuit structure by transmission line, and wherein the separate type driving circuit structure of an end is connected with this LED lamp bar and to drive this LED lamp bar shinny.

5. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 4; It is characterized in that complete driving circuit structure has comprised EMI filter circuit module, rectification circuit module, a LED control circuit module and has been used for the circuit module of driving LED fluorescent tube.

6. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 1; It is characterized in that; The separate type driving circuit structure of one end is the combination of EMI filter circuit module and rectification circuit module, and the other end then is LED control circuit module and the combination that is used for the circuit module of driving LED fluorescent tube.

7. the separate type driving circuit structure that is used for the LED fluorescent tube as claimed in claim 1; It is characterized in that; This separate type driving circuit structure with EMI filter circuit module, rectification circuit module and LED control circuit module, selects to be arranged at the LED lamp tube ends; And be connected through a transmission lines, form a complete driving circuit structure.