CN202159850U - Grounding sheet, grounding device and liquid crystal display device - Google Patents
Grounding sheet, grounding device and liquid crystal display device Download PDFInfo
- Publication number
- CN202159850U CN202159850U CN2011202610403U CN201120261040U CN202159850U CN 202159850 U CN202159850 U CN 202159850U CN 2011202610403 U CN2011202610403 U CN 2011202610403U CN 201120261040 U CN201120261040 U CN 201120261040U CN 202159850 U CN202159850 U CN 202159850U
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- China
- Prior art keywords
- connecting portion
- hole
- ground strip
- grounding
- earthing device
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Abstract
The utility model discloses a grounding sheet, which is arranged in a three-level stepped shape and sequentially comprises a first connecting portion, a second connecting portion and a tail portion. The first connecting portion and the second connecting portion are both provided with through holes. The utility model further provides a grounding device which comprises the grounding sheet and a main board support. A stud, a boss and a through hole are sequentially arranged on the base plane of the main board support from a high position to a low position, the first connecting portion of the grounding sheet is provided with a first through hole matched with the stud, the second connecting portion of the grounding sheet is provided with a second through hole matched with the boss, and the tail portion of the grounding sheet penetrates through the through hole and is tightly attached to the outer surface of the main board support. The utility model further correspondingly provides a liquid crystal display device which comprises the grounding device. The grounding sheet enables grounding of a circuit board in a liquid crystal display television to be more reliable, and can reduce manufacturing cost and assembly cost of the liquid crystal display television.
Description
Technical field
The utility model relates to field of liquid crystal display, specially refers to a kind of ground strip, earthing device and liquid crystal indicator.
Background technology
At present, in LCD TV, the ground connection of its internal circuit plate generally all adopts ground strip to realize.Yet; The existing ground strip that is connected with circuit board in the LCD TV that is used in, its structure be more complicated all often, therefore assemble up the comparison difficulty; Directly have influence on the steadiness that ground strip is connected with circuit board, possibly cause the circuit board ground connection of LCD TV unreliable.And,, increased the manufacturing cost and the assembly cost of LCD TV to a certain extent because the structure of this ground strip is complicated.
The utility model content
The main purpose of the utility model is for providing a kind of ground strip, makes that the ground connection of circuit board is more reliable in the LCD TV, and can reduce the manufacturing cost and the assembly cost of LCD TV.
The utility model provides a kind of ground strip, and said ground strip is three grades of stepped settings, comprises first connecting portion, second connecting portion and the afterbody that set gradually, on first connecting portion and second connecting portion, is equipped with through hole.
Preferably, the through hole on said first connecting portion is a circular hole.
Preferably, the through hole on said second connecting portion is a square hole.
The utility model also provides a kind of earthing device, comprises ground strip and mainboard support, and said mainboard bracket bottom is provided with double-screw bolt, boss and through hole on the plane from high to low successively; Said ground strip is three grades of stepped settings; Comprise first connecting portion, second connecting portion and the afterbody that set gradually; Said first connecting portion is provided with first through hole of joining work with said double-screw bolt; Said second connecting portion is provided with second through hole of joining work with said boss, and said afterbody passes said through hole and is close to the appearance plane of said mainboard support.
Preferably, the cross section of said double-screw bolt is circular, and the through hole on said first connecting portion is a circular hole.
Preferably, the cross section of said boss is square, and the through hole on said second connecting portion is a square hole.
Preferably, the both sides of said boss are provided with two projections, and said two projections have the draw-in groove that is oppositely arranged, and the dual-side of said second connecting portion is fastened on respectively in the draw-in groove of said two projections.
Preferably, said through hole is a square opening.
Preferably, said earthing device also comprises the conducting foam that is bonded in said afterbody bottom surface.
The utility model also provides a kind of liquid crystal indicator, comprises earthing device, and said earthing device comprises ground strip and mainboard support, and said mainboard bracket bottom is provided with double-screw bolt, boss and through hole on the plane from high to low successively; Said ground strip is three grades of stepped settings; Comprise first connecting portion, second connecting portion and the afterbody that set gradually; Said first connecting portion be provided with said double-screw bolt on screw join first through hole of work; Said second connecting portion is provided with second through hole of joining work with said boss, and said afterbody passes said through hole and is close to the appearance plane of said mainboard support.
It is stepped that the utility model is designed to be respectively first connecting portion, second connecting portion and afterbody three grades through the ground strip with earthing device in the liquid crystal indicator; During assembling; Can with first connecting portion, second connecting portion and afterbody respectively with the mainboard support on corresponding structure fix; Adopt the structure of this kind ground strip, the ground connection of LCD TV circuit board is more reliable, and can reduce the manufacturing cost and the assembly cost of LCD TV.
Description of drawings
Fig. 1 is the structural representation of the utility model ground strip;
Fig. 2 is the structural representation of the utility model earthing device mainboard support;
Fig. 3 is the assembly structure sketch map of the utility model earthing device ground strip and mainboard support;
Fig. 4 is the assembling process sketch map of the utility model liquid crystal indicator ground strip and mainboard support and circuit board;
Fig. 5 is the structural representation of the utility model earthing device conducting foam;
Fig. 6 is the assembling process sketch map of the utility model liquid crystal indicator mainboard support and display panels.
The realization of the utility model purpose, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
With reference to Fig. 1, Fig. 1 is the structural representation of the utility model ground strip.
In the present embodiment; A kind of ground strip is provided, and this ground strip is three grades of stepped settings, and this ground strip comprises first connecting portion 10, second connecting portion 20 and the afterbody 30 that sets gradually; First connecting portion 10 is provided with first through hole, 11, the second connecting portions 20 and is provided with second through hole 21.In the present embodiment, first through hole 11 on first connecting portion 10 can be set to circle; Second through hole 21 on second connecting portion 20 can be set to square.
The ground strip that the utility model embodiment is provided; Be designed to three grades stepped; The ground strip of this tertiary structure matches with the mainboard support and is connected; Therefore, first connecting portion 10, second connecting portion 20 and afterbody 30 3 parts of this ground strip need respectively with the mainboard support on corresponding structure just in time engage, therefore; This ground strip can be set to first connecting portion 10, second connecting portion 20 and afterbody 30 and be parallel to each other, and successively through with the perpendicular interconnective three grades of step structures of vertical portion of this three part.When this ground strip was fixedly connected with the mainboard support, its first connecting portion 10, second connecting portion 20 and afterbody 30 can be fixedly connected on the diverse location of mainboard support respectively.Adopt the ground strip of this structure; Because it is simple in structure; Therefore, make that the installation step of ground strip is also simpler, the stair-stepping tertiary structure of this ground strip can fully contact with the mainboard support and be fixedly connected with this mainboard support simultaneously; Make that the ground connection of ground strip is more reliable, can effectively reduce the manufacturing cost and the assembly cost of LCD TV simultaneously.
With reference to Fig. 2, Fig. 2 is the structural representation of the utility model earthing device mainboard support.
In the present embodiment; Earthing device comprises ground strip and mainboard support; Be provided with double-screw bolt 40, boss 50 and through hole 60 on the baseplane of this mainboard support from high to low successively, the cross section of double-screw bolt 40 can be circle, and the manhole 11 on first connecting portion 10 of ground strip is joined work with this double-screw bolt 40; The cross section of boss 50 can be for square, and the square through hole 21 on this square boss 50 and second connecting portion 20 is joined work; Through hole 60 can be set to square opening, and the afterbody 30 of ground strip can pass this through hole 60 and be close to the appearance plane of mainboard support; The both sides of boss 50 also are provided with two projections 70, and the side of these two projections 70 has the draw-in groove 71 that is oppositely arranged, and the dual-side of second connecting portion 20 of ground strip can be fastened on respectively in the draw-in groove 71 set on two projections 70.
The earthing device that the utility model embodiment is provided; Through through hole 60 is set on the baseplane of mainboard support; When assembling; The afterbody 30 of ground strip can pass this through hole 60 and be close to the appearance plane of mainboard support; Set manhole 11 matches with mainboard support upper stud 40 and does and be fixedly connected on first connecting portion 10 of ground strip, simultaneously, and through set draw-in groove 71 and the square boss 50 of two projection 70 opposed inside set on the mainboard bracket bottom plane; Make the dual-side of ground strip second connecting portion 20 can just in time be fastened in the draw-in groove 71, square through hole set on second connecting portion 20 can just in time be fastened on the square boss 50.Like this, just can be grounded the fixing of sheet and mainboard support better, thereby further guarantee the reliability of ground strip ground connection.
With reference to Fig. 3, Fig. 3 is that sketch map is accomplished in the assembling of the utility model earthing device ground strip and mainboard support.
In the above-described embodiments; When ground strip and mainboard support are assembled; Earlier the afterbody 30 with ground strip inserts in the squared-shaped passthrough openings 60 set on the mainboard bracket bottom planes, makes afterbody 30 pass the mainboard support, extends forward and is close on the appearance plane of mainboard support; At this moment; The dual-side of second connecting portion 20 is advanced and makes in the draw-in groove 71 that its side that is fastened on two set on mainboard bracket bottom plane projections 70 is oppositely arranged, to second connecting portion pass square through hole set on draw-in groove 71, the second connecting portions 20 21 just and the square boss 50 between two projections 70 fasten; Through of the acting in conjunction of this square boss 50, can limit second connecting portion 20 and be shifted along left and right directions with draw-in groove 71; At this moment; Manhole 11 on first connecting portion 10 of ground strip is relative with the screw of mainboard support upper stud 40 just; In the present embodiment; Can pass manhole 11 and first connecting portion 10 and double-screw bolt 40 are fixedly connected with screw,, can limit moving of first connecting portion 10 well through the fixed form of this employing screw.Like this, just, can reach being mutually permanently connected of ground strip and mainboard support.
Through on the mainboard support, be provided with one can ccontaining ground strip afterbody 30 squared-shaped passthrough openings 60 of passing; During assembling, afterbody 30 passed this through hole 60 after, it is close to the appearance plane of mainboard support mutually; First connecting portion 10 of ground strip all can be fixedly connected with the mainboard support with second connecting portion 20 simultaneously; And through the acting in conjunction of screw, draw-in groove 71 and square boss 50, limited moving of ground strip well, made that the assembling of ground strip and mainboard support is more firm.
With reference to Fig. 4, Fig. 4 is the assembling process sketch map of the utility model earthing device circuit board and mainboard support.
In the above-described embodiments; After ground strip being fixed on the mainboard support, need circuit board be fixedly connected on the mainboard support, in the present embodiment; Can on the circuit board with first connecting portion 10 of ground strip on manhole 11 and the upper stud 40 corresponding positions of mainboard support suitable screw is set; And through screw circuit board is locked on the double-screw bolt 40, like this, just can realize being fixedly connected with circuit board and mainboard support.
With reference to Fig. 5, Fig. 5 is the structural representation of the utility model earthing device conducting foam.
In the above-described embodiments, earthing device also comprises a conducting foam 80, and this conducting foam 80 can be bonded in the bottom surface of ground strip afterbody 30.One side at conducting foam 80 is provided with double faced adhesive tape, after ground strip and mainboard support assemble, the mainboard support is turned over, and the one side that conducting foam 80 is provided with double faced adhesive tape is sticked on the bottom surface of afterbody 30.
Bonding conducting foam is after 80s in the bottom surface of ground strip afterbody 30; When the mainboard support is fixedly connected with display panels; Thereby conducting foam 80 just is extruded distortion and can contacts with display panels; Like this, circuit board is just connected with display panels through ground strip and this conducting foam 80, thereby has realized the ground connection effect of ground strip.
With reference to Fig. 6, Fig. 6 is the assembling process sketch map of the utility model liquid crystal indicator.
In the present embodiment, also propose a kind of liquid crystal indicator, this liquid crystal indicator comprises the earthing device in the foregoing description.When with conducting foam 80 and ground strip through double faced adhesive tape bonding after; The back side of mainboard support and display panels is close to; Conducting foam 80 is contacted with display panels, and like this, an end of ground strip links to each other with circuit board; The other end links to each other with display panels through conducting foam 80, just can be grounded the ground connection effect of sheet through conducting foam 80.With this, further guaranteed the reliability of ground strip ground connection, and can further reduce the manufacturing cost and the assembly cost of LCD TV.
The embodiment of this liquid crystal indicator has comprised whole technical schemes of each embodiment of above-mentioned ground strip and ground strip device, and the technique effect that is reached is also identical, repeats no more at this.
The above is merely the preferred embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (10)
1. a ground strip is characterized in that, said ground strip is three grades of stepped settings, comprises first connecting portion, second connecting portion and the afterbody that set gradually, on first connecting portion and second connecting portion, is equipped with through hole.
2. ground strip as claimed in claim 1 is characterized in that, the through hole on said first connecting portion is a circular hole.
3. ground strip as claimed in claim 2 is characterized in that, the through hole on said second connecting portion is a square hole.
4. an earthing device comprises ground strip and mainboard support, it is characterized in that, said mainboard bracket bottom is provided with double-screw bolt, boss and through hole on the plane from high to low successively; Said ground strip is three grades of stepped settings; Comprise first connecting portion, second connecting portion and the afterbody that set gradually; Said first connecting portion is provided with first through hole of joining work with said double-screw bolt; Said second connecting portion is provided with second through hole of joining work with said boss, and said afterbody passes said through hole and is close to the appearance plane of said mainboard support.
5. earthing device as claimed in claim 4 is characterized in that, the cross section of said double-screw bolt is circular, and the through hole on said first connecting portion is a circular hole.
6. earthing device as claimed in claim 5 is characterized in that, the cross section of said boss is square, and the through hole on said second connecting portion is a square hole.
7. earthing device as claimed in claim 6 is characterized in that the both sides of said boss are provided with two projections, and said two projections have the draw-in groove that is oppositely arranged, and the dual-side of said second connecting portion is fastened on respectively in the draw-in groove of said two projections.
8. like each described earthing device in the claim 4 to 7, it is characterized in that said through hole is a square opening.
9. earthing device as claimed in claim 8 is characterized in that, also comprises the conducting foam that is bonded in said afterbody bottom surface.
10. a liquid crystal indicator is characterized in that, comprises like each described earthing device in the claim 4 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202610403U CN202159850U (en) | 2011-07-22 | 2011-07-22 | Grounding sheet, grounding device and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202610403U CN202159850U (en) | 2011-07-22 | 2011-07-22 | Grounding sheet, grounding device and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202159850U true CN202159850U (en) | 2012-03-07 |
Family
ID=45767473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202610403U Expired - Lifetime CN202159850U (en) | 2011-07-22 | 2011-07-22 | Grounding sheet, grounding device and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202159850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226409A (en) * | 2015-10-26 | 2016-01-06 | 广东美的厨房电器制造有限公司 | Connector and household electrical appliance |
-
2011
- 2011-07-22 CN CN2011202610403U patent/CN202159850U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226409A (en) * | 2015-10-26 | 2016-01-06 | 广东美的厨房电器制造有限公司 | Connector and household electrical appliance |
| CN105226409B (en) * | 2015-10-26 | 2019-01-15 | 广东美的厨房电器制造有限公司 | Connector and household electrical appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |