CN202972962U - Locating device and LED lamp bar provided with locating device - Google Patents
Locating device and LED lamp bar provided with locating device Download PDFInfo
- Publication number
- CN202972962U CN202972962U CN2012205710821U CN201220571082U CN202972962U CN 202972962 U CN202972962 U CN 202972962U CN 2012205710821 U CN2012205710821 U CN 2012205710821U CN 201220571082 U CN201220571082 U CN 201220571082U CN 202972962 U CN202972962 U CN 202972962U
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- circuit board
- lamp bar
- led lamp
- lgp
- towards
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Abstract
The utility model discloses a locating device for an LED (Light-emitting Diode) lamp bar. The LED lamp bar and a light guide board are arranged at an interval. The LED lamp bar comprises a circuit board and a plurality of LEDs arranged at intervals on the circuit board, wherein the light guide board is provided with a light inlet surface facing towards the circuit board. The locating device comprises a plurality of locating pieces that are arranged at intervals, wherein each locating piece is arranged on the circuit board and positioned between the corresponding LEDs, and the length of each locating piece extending towards the light guide board is greater than the thickness of each LED of the LED lamp bar. As the locating pieces are arranged on the LED lamp bar, and the length of each locating piece is greater than the thickness of each LED, when the light guide board changes due to an environmental factor influence, the light guide board can directly push against the locating pieces due to expansion of the light guide board, then the locating pieces push against the circuit board of the LED lamp bar, and an appropriate distance between the LED lamp bar and the light guide board can be kept.
Description
Technical field
The utility model relates to a kind of positioner, refers to especially an a kind of LGP and permanent positioner that keeps a suitable distance of a LED lamp bar that makes backlight module, and the LED lamp bar with this positioner.
Background technology
Liquid crystal panel is applied in now life, for example: mobile phone, notebook computer, personal computer and TV etc. electronic product widely.Yet, because liquid crystal panel itself is not luminous, so generally adopt backlight module that the liquid crystal panel light source is provided, reach the effect that liquid crystal panel shows.
And general backlight module can be divided into two kinds, and a kind of is direct type backlight module, and another kind is side light type back light module.Consult Fig. 1, side light type back light module mainly comprises a LGP 32, a LED lamp bar 33, a reflecting plate, and several blooming pieces.The direction that the major function of this LGP 32 emits beam for this LED lamp bar 33 of guiding, on actual fabrication, this LGP 32 is to be disposed on a backboard 31 with this LED lamp bar 33.To achieve the above object, way in the past is that this LGP 32 is located, clip for two jiaos that namely first this LGP 32 are closed on this LED lamp bar 33, stay two breach 321, then recycle two keepers 34, for example: rivet or unit of plastic (seeing Fig. 2), described keeper 34 is separately fixed at breach 321 places of corresponding LGP 32 on this backboard 31, make described keeper 34 these LGPs 32 of energy contact, and this LGP 32 is completed the location, to guarantee the distance of 33 of this LGP 32 and this LED lamp bars.
Yet, make this LGP 32 and must cut it, forming described breach 321, like this increased the program of making.Its two, after this LGP 32 was changed by temperature, humidity, the distance of this LGP 32 of the more difficult control of the expansion of this LGP 32 and this LED lamp bar 33 caused this LGP 32 to touch the LED331 of this LED lamp bar 33 and forms local bright spot or the LED331 extruding is impaired.Its three, the described breach 321 of this LGP 32 easily causes the picture quality problem of lighting.
Summary of the invention
The purpose of this utility model is to provide an a kind of LGP and permanent positioner that keeps a distance of a LED lamp bar of making.
This LED lamp bar and this LGP interval arrange and comprise that several LED, this positioner comprise several keepers separately.
Every positioning piece is arranged on this LED lamp bar, and every positioning piece length of extending towards this LGP makes the permanent maintenance of this LGP and this LED lamp bar one distance greater than the thickness of each LED of this LED lamp bar.
Preferably, this LED lamp bar also comprises a circuit board towards this LGP, described LED is arranged at intervals at this circuit board and towards this LGP, described keeper is arranged on this circuit board and lays respectively between corresponding LED, this LGP has an incidence surface towards this circuit board, and described keeper is respectively towards this incidence surface.
Preferably, described keeper is to be arranged at the electronic building brick of this circuit board with surface mount technology.
A kind of embodiment of the present utility model, every positioning piece has the fixed leg that the keeper body and of this LGP of contact extends towards this circuit board from this keeper body, and this fixed leg stretches through and is fixed in this circuit board.
Preferably, each fixed leg is that the one side towards this circuit board is extended from corresponding keeper body.
Preferably, described fixed leg is plastic rivet.
Another kind of embodiment of the present utility model, every positioning piece has the keeper body of this LGP of contact and the stay hook of this keeper body of connection, and this stay hook snap fit is fixed in this circuit board.
Preferably, each stay hook is the end face that is connected in corresponding keeper body.
Preferably, each stay hook has a first side wall, that connects corresponding keeper body and connects this first side wall and be resisted against connecting wall on this circuit board, reach one from second sidewall of this connecting wall in contrast to this first side wall one end to downward-extension, and this second sidewall and this circuit board of the common clamping of corresponding keeper body.
Another purpose of the present utility model is namely providing an a kind of LGP and permanent LED lamp bar that keeps a distance of a LED lamp bar of making.
This LED lamp bar and a LGP interval setting, this LED lamp bar comprises a circuit board, several LED and a location device.
This circuit board is towards this LGP.Described LED is arranged at intervals at this circuit board and towards this LGP.This positioner comprises several keepers separately, and every positioning piece is arranged on circuit board, and every positioning piece length of extending towards this LGP makes the permanent maintenance of this LGP and described LED one distance greater than the thickness of each LED of this LED lamp bar.
Preferably, this LGP has an incidence surface towards this circuit board, and described keeper is this incidence surface of contact respectively.
Preferably, described keeper is to be arranged at the electronic building brick of this circuit board with surface mount technology.
In one embodiment, every positioning piece has the fixed leg that the keeper body and of this LGP of contact extends towards this circuit board from this keeper body, and this fixed leg stretches through and is fixed in this circuit board.
Preferably, each fixed leg is that the one side towards this circuit board is extended from corresponding keeper body.
Preferably, described fixed leg is plastic rivet.
Another kind of embodiment of the present utility model, every positioning piece has the keeper body of this LGP of contact and the stay hook of this keeper body of connection, and this stay hook snap fit is fixed in this circuit board.
Preferably, each stay hook is the end face that is connected in corresponding keeper body.
Preferably, each stay hook has a first side wall, that connects corresponding keeper body and connects this first side wall and be resisted against connecting wall on this circuit board, reach one from second sidewall of this connecting wall in contrast to this first side wall one end to downward-extension, and this second sidewall and this circuit board of the common clamping of corresponding keeper body.
The beneficial effects of the utility model are: because described keeper is arranged at this LED lamp bar, and while this LGP of contact, when changed by the such environmental effects such as temperature or humidity, the expansion meeting immediate roof of this LGP is to described keeper, follow described keeper and lean to the circuit board of this LED lamp bar again, and can remain that this LED lamp bar and this LGP are in a distance.
Description of drawings
Fig. 1 is a schematic top plan view, and two keepers of prior art are described;
Fig. 2 is a schematic top plan view, and another enforcement aspect of prior art is described;
Fig. 3 is a schematic top plan view, and the first embodiment of the utility model positioner is described;
Fig. 4 is the profile of getting in Fig. 3 along the IV-IV hatching line;
Fig. 5 is a schematic top plan view, and the second embodiment of the utility model positioner is described;
Fig. 6 is the profile of getting in Fig. 5 along the VI-VI hatching line;
Fig. 7 is a schematic top plan view, and the 3rd embodiment of the utility model positioner is described;
Fig. 8 is the profile of getting in Fig. 7 along the VIII-VIII hatching line;
Fig. 9 is a schematic top plan view, and the 4th embodiment of the utility model positioner is described; And
Figure 10 is the profile of getting in Fig. 9 along the X-X hatching line.
The specific embodiment
Below in conjunction with accompanying drawing and four embodiment, the utility model is elaborated.
Before the utility model is described in detail, be noted that in the following description content, similarly assembly is to represent with identical numbering; And the direction term that the utility model is mentioned, such as " on ", D score, 'fornt', 'back', " left side ", " right side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is explanation, but not is used for limiting the utility model.
Before this novel being described in detail, be noted that in the following description content, similarly assembly is to represent with identical numbering.
Consult Fig. 3 and Fig. 4, the utility model positioner is applied to a backlight module 1, and this backlight module 1 comprises a LGP 11 and one and the LED lamp bar 12 that arranges of this LGP 11 intervals.Be noted that this backlight module 1 can also comprise other assembly of blooming piece etc., for convenience of description, the assembly relevant to the utility model only be described herein, and repeat no more known technology in all the other these fields.This LED lamp bar 12 comprises that one is arranged at intervals at this circuit board 121 and towards the LED122 of this LGP 11 towards the circuit board 121 of this LGP 11 and several.This LGP 11 has an incidence surface 111 towards this circuit board 121.The light that this LED lamp bar 12 sends can pass through this incidence surface 111, then enters in this LGP 11 from this incidence surface 111, then utilizes this LGP 11 that ray guidance to optical module (not shown) is done follow-up utilization.
The first embodiment of the utility model positioner 2 comprises two keepers 21 separately, and particularly every positioning piece 21 is plastics blocks.described keeper 21 is arranged on this circuit board 121 and lays respectively between corresponding LED122, that is to say, every positioning piece 21 is positioned between two adjacent LED122, and every positioning piece 21 is arranged on the circuit board 121 of this LED lamp bar 12 in the mode of pasting, and the length D that every positioning piece 21 is extended towards this LGP 11 is greater than the thickness L of each LED122 of this LED lamp bar 12, make this LGP 11 and the permanent distance that keeps of this LED lamp bar 12, in other words, described keeper 21 can be in the situation that these LGP 11 these LGPs 11 of expansion contact, avoid this LGP 11 described LED122 of extruding and cause that described LED122's is impaired.The number that is noted that this keeper 21 is not limited with two, is mainly the demand of considering that this LGP 11 and these LED lamp bar 12 sizes etc. produce, does adjustment, is with better more than two in principle.
Because described keeper 21 is to contact with this LGP 11 and this LED lamp bar 12 simultaneously, so in case this LGP 11 is changed by temperature or humidity effect, the expansion meeting immediate roof of this LGP 11 is to described keeper 21, follow described keeper 21 and lean to the circuit board 121 of this LED lamp bar 12 again, and can remain the distance of this LED lamp bar 12 and this LGP 11.
Consulting Fig. 5 and Fig. 6 is the second embodiment of the utility model positioner 2, and this second embodiment is roughly identical with this first embodiment, and its Main Differences is the mode of fixing.Every positioning piece 21 of this second embodiment has keeper body 211 and a fixed leg 212 of this LGP 11 of a contact.Each fixed leg 212 is that the one side towards this circuit board 121 is extended from corresponding keeper body 211, extend and stretch through towards this circuit board 121 and be fixed in this circuit board 121, make described keeper 21 can be fixed in this circuit board 121, and can not drop from this circuit board 121, particularly, described fixed leg 212 is plastic rivet, and can utilize the mode of multiple fixed plastics rivet, for example: hot-setting adhesive or UV glue or assemble with the mode of overhead kick even also can change and is designed to the plastics screw and is attached to circuit board 121.
Consulting Fig. 7 and Fig. 8 is the 3rd embodiment of the utility model positioner 2, and the 3rd embodiment is roughly identical with this first embodiment, and its Main Differences is the mode of fixing.Every positioning piece 21 of the 3rd embodiment has the keeper body 211 of this LGP 11 of a contact and the stay hook 213 of this keeper body 211 of connection.Each stay hook 213 has a first side wall 214, that connects corresponding keeper body 211 end faces and connects this first side wall 214 and be resisted against connecting wall 215 on this circuit board 121, reach one from second sidewall 216 of this connecting wall 215 in contrast to these the first side wall 214 1 ends to downward-extension, and this second sidewall 216 and common this circuit board 121 of clamping of corresponding keeper body 211, make described stay hook 213 snap fits be fixed in this circuit board 121, and allow described keeper 21 can be fixed in this circuit board 121.
consulting Fig. 9 and Figure 10 is the 4th embodiment of the utility model positioner 2, the 4th embodiment is roughly identical with this first embodiment, its Main Differences is that described keeper 21 selected electronic building brick to replace the plastics block, and described keeper 21 is with surface mount technology (SMT, surface mount technology) be arranged at this circuit board 121, and described electronic building brick can be selected ceramic condenser or use the LED large than the thickness L of the utility model LED122, when its benefit is to utilize surface mount technology to be welded on circuit board 121 for luminous LED122, also utilize in the lump surface mount technology that keeper 21 is welded on circuit board 121, thereby we need to be after not completing LED lamp bar 12, also must there be follow-up other processing that keeper 21 is sticked on circuit board 121.Be noted that, above-mentioned electronic building brick for keeper 21 itself can't be switched on and be brought into play the function of its assembly itself, but just pure its physically effect of contact LGP 11 of performance prevents that LGP 11 is expressed in the utility model for luminous LED122.
In sum, described keeper 21 is arranged at this LED lamp bar 12, and while this LGP 11 of contact, when this LGP 11 is changed by the such environmental effects such as temperature or humidity, the expansion meeting immediate roof of this LGP 11 is to described keeper 21, follow described keeper 21 and lean to the circuit board 121 of this LED lamp bar 12 again, and can remain that this LED lamp bar 12 and this LGP 11 are in a suitable distance, therefore really can reach the purpose of this utility model.
Claims (18)
1. the positioner of a LED lamp bar, this LED lamp bar and a LGP interval arrange and comprise several LED, and it is characterized in that: this positioner comprises
Several keepers separately, every positioning piece are arranged on this LED lamp bar, and every positioning piece length of extending towards this LGP makes the permanent maintenance of this LGP and this LED lamp bar one distance greater than the thickness of each LED of this LED lamp bar.
2. positioner according to claim 1, it is characterized in that: this LED lamp bar also comprises a circuit board towards this LGP, described LED is arranged at intervals at this circuit board and towards this LGP, described keeper is arranged on this circuit board and lays respectively between corresponding LED, this LGP has an incidence surface towards this circuit board, and described keeper is respectively towards this incidence surface.
3. positioner according to claim 2, it is characterized in that: described keeper is to be arranged at the electronic building brick of this circuit board with surface mount technology.
4. positioner according to claim 2, it is characterized in that: every positioning piece has the keeper body of this LGP of contact, and a fixed leg that extends towards this circuit board from this keeper body, and this fixed leg stretches through and is fixed in this circuit board.
5. positioner according to claim 4 is characterized in that: each fixed leg is that the one side towards this circuit board is extended from corresponding keeper body.
6. positioner according to claim 5, it is characterized in that: described fixed leg is plastic rivet.
7. positioner according to claim 2, it is characterized in that: every positioning piece has the keeper body of this LGP of contact, and a stay hook that connects this keeper body, and this stay hook snap fit is fixed in this circuit board.
8. positioner according to claim 7, it is characterized in that: each stay hook is connected in the end face of corresponding keeper body.
9. positioner according to claim 8, it is characterized in that: each stay hook has a first side wall, that connects corresponding keeper body and connects this first side wall and be resisted against connecting wall on this circuit board, reach one from second sidewall of this connecting wall in contrast to this first side wall one end to downward-extension, and this second sidewall and this circuit board of the common clamping of corresponding keeper body.
10. LED lamp bar, with a LGP interval setting, this LED lamp bar comprises a circuit board towards this LGP, and several are arranged at intervals at this circuit board and towards the LED of this LGP, it is characterized in that: this LED lamp bar also comprises a location device, this positioner comprises several keepers separately, every positioning piece is arranged on circuit board, and the length that every positioning piece is extended towards this LGP makes the permanent maintenance of this LGP and described LED one distance greater than the thickness of each LED of this LED lamp bar.
11. LED lamp bar according to claim 10 is characterized in that: this LGP has an incidence surface towards this circuit board, described keeper is respectively towards this incidence surface.
12. LED lamp bar according to claim 11 is characterized in that: described keeper is to be arranged at the electronic building brick of this circuit board with surface mount technology.
13. LED lamp bar according to claim 11 is characterized in that: every positioning piece has the keeper body of this LGP of contact, and a fixed leg that extends towards this circuit board from this keeper body, and this fixed leg stretches through and is fixed in this circuit board.
14. LED lamp bar according to claim 13 is characterized in that: each fixed leg is the extension of the one side towards this circuit board from corresponding keeper body.
15. LED lamp bar according to claim 14 is characterized in that: described fixed leg is plastic rivet.
16. LED lamp bar according to claim 11 is characterized in that: every positioning piece has the keeper body of this LGP of contact, and the stay hook of this keeper body of connection, and this stay hook snap fit is fixed in this circuit board.
17. LED lamp bar according to claim 16, it is characterized in that: each stay hook is connected in the end face of corresponding keeper body.
18. LED lamp bar according to claim 17, it is characterized in that: each stay hook has a first side wall, that connects corresponding keeper body and connects this first side wall and be resisted against connecting wall on this circuit board, reach one from second sidewall of this connecting wall in contrast to this first side wall one end to downward-extension, and this second sidewall and this circuit board of the common clamping of corresponding keeper body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205710821U CN202972962U (en) | 2012-11-01 | 2012-11-01 | Locating device and LED lamp bar provided with locating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205710821U CN202972962U (en) | 2012-11-01 | 2012-11-01 | Locating device and LED lamp bar provided with locating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202972962U true CN202972962U (en) | 2013-06-05 |
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ID=48514032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205710821U Expired - Fee Related CN202972962U (en) | 2012-11-01 | 2012-11-01 | Locating device and LED lamp bar provided with locating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202972962U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101365A1 (en) * | 2014-12-26 | 2016-06-30 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| WO2019148967A1 (en) * | 2018-01-31 | 2019-08-08 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
-
2012
- 2012-11-01 CN CN2012205710821U patent/CN202972962U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016101365A1 (en) * | 2014-12-26 | 2016-06-30 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| WO2019148967A1 (en) * | 2018-01-31 | 2019-08-08 | Oppo广东移动通信有限公司 | Backlight module and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131101 |