CN200956411Y - Two-sided PCB earthing device for flat screen television - Google Patents
Two-sided PCB earthing device for flat screen television Download PDFInfo
- Publication number
- CN200956411Y CN200956411Y CNU2006200153169U CN200620015316U CN200956411Y CN 200956411 Y CN200956411 Y CN 200956411Y CN U2006200153169 U CNU2006200153169 U CN U2006200153169U CN 200620015316 U CN200620015316 U CN 200620015316U CN 200956411 Y CN200956411 Y CN 200956411Y
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- Prior art keywords
- pad
- circuit board
- ground wire
- copper foil
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The utility model provides an earthing device of a double-side circuit board for a flat panel TV, the bottom surface of the single-side circuit board being provided with a ground wire copper foil and an installation hole is arranged on the circuit board for a bolt to drill through. The ground wire copper foil corresponding to the installation hole is a pad with the hole and a metal board is under the circuit board, a round metal stanchion extending upwards from the metal board corresponding to the installation hole and the pad of the ground wire copper foil contacting the top of the metal stanchion. The bolt drills through the installation hole of the circuit board over the circuit board and the back of the pad hole of the ground wire copper foil assorts and is connected with the metal stanchion of the metal board. The top surface of the circuit board is provided with another pad with the hole and the pad on the top surface contacts with the screw cap of the bolt and has an electric connection with the ground wire copper foil on the bottom surface of the circuit board. The earthing device for the circuit board in the TV of the utility model can augment the conductance value for the ground wire and the ground wire does not bring the electric disconnection easily.
Description
[technical field]
The utility model relates to the earthing device of circuit board in a kind of panel TV, relates in particular to a kind of earthing device that is used for the panel TV double-sided PCB.
[background technology]
Panel TV is the tv product of develop rapidly in recent years, and it mainly comprises display screen, circuit board, shell and support.Described display screen comprises glass plate and metallic plate, has wherein made the circular metal pillar on the metallic plate, and described circular metal pillar is provided with female screw hole.In the panel TV manufacture process, circuit board is passed through by screw, and is fixed on the described circular metal pillar.
Therefore, described circuit board is connected with metallic plate, ground wire and the metallic plate formation that is furnished with on the circuit board can be electrically connected, to reach the purpose of electronic product ground connection, shielding, filtering, antistatic by metal mainstay.Described method is a panel TV circuit board module bonding technology.
See also Fig. 1 and Fig. 2, the bonding mode of double-sided PCB is to establish ground wire Copper Foil 31 ' in circuit board 3 ' bottom surface in the prior art panel TV, the position of described ground wire Copper Foil 31 ' the corresponding installing hole is the pad 1 ' of band circular hole, and the Circularhole diameter of described pad 1 ' equals the diameter of screw 5 '; On the metallic plate 4 ' of circuit board 3 ' below, the position of corresponding installing hole upwards vertically extends described metal mainstay 2 '.Pad 1 ' the part of described ground wire Copper Foil 31 ' contacts with metal mainstay 2 ' top.Screw 5 ' passes the pad 1 ' circular hole of installing hole, ground wire Copper Foil 31 ' of circuit board 3 ' from circuit board 3 ' top after, be threaded with the metal mainstay 2 ' of metallic plate 4 ', utilize the pressure of hold-down screw 5 ' that pad 1 ' (being ground wire Copper Foil 31 ') is combined with metal mainstay 2 ', finish being electrically connected.
In the panel TV of described prior art in the bonding mode of double-sided PCB, circuit board 3 ' ground wire electric conductivity value is that the conductivity of metal mainstay 2 ' multiply by the contact area with pad 1 '.Because of the through-hole diameter on the metal mainstay 2 ' on the metallic plate 4 ' and material fixed, thereby the ground wire electric conductivity value is a fixed value; If screw loosening is easy to cause the ground wire of circuit board 3 ' and metal mainstay 2 ' to disconnect, cause circuit board 3 ' imperfect earth on electric.
[utility model content]
The technical problem of the required solution of the utility model is to provide the earthing device of double-sided PCB in a kind of panel TV, and it can increase the ground wire electric conductivity value, and ground wire is difficult for electric disconnection.
For solving the problems of the technologies described above, the technical solution of the utility model is: the earthing device that double-sided PCB in a kind of panel TV is provided, lie in circuit board bottom surface one ground wire Copper Foil is set, on circuit board, offer the installing hole that wears for screw, the position of the corresponding installing hole of described ground wire Copper Foil is a pad with holes, it below circuit board metallic plate, the position of corresponding installing hole extends upward the circular metal pillar on this metallic plate, and the pad of described ground wire Copper Foil contacts with the metal mainstay top; Screw passes the pad hole of installing hole, ground wire Copper Foil of described circuit board from circuit board top after, be connected with the metal mainstay of metallic plate; Wherein, also be provided with another pad with holes on the described board top surface, described end face pad partly contacts with the nut of screw, and is electrically connected with the ground wire Copper Foil of circuit board bottom surface.
Be equipped with the metallization via hole of position correspondence in the described panel TV on the end face pad of the earthing device of double-sided PCB and the bottom surface pad, described end face pad and bottom surface pad are electrically connected by the metallization via hole.
The pad of the earthing device of double-sided PCB is provided with a plurality of metallization via holes in the described panel TV, and described metallization via hole distributes in the form of a ring around the hole on end face, the bottom surface pad.
The end face pad of the earthing device of double-sided PCB is identical with the bottom surface pad structure in the described panel TV.
The circular metal pillar madial wall of the metallic plate of the earthing device of double-sided PCB is provided with the screw thread that can match with screw in the described panel TV.
Compared with prior art, the earthing device of circuit board increases the end face pad in the utility model TV, and the pad of this pad and circuit board bottom surface is electrically connected, with hold-down screw urgent after, the ground wire of double-sided PCB increases with the area that is connected of metal mainstay, cause the electric conductivity value between circuit board ground and the metal mainstay to increase, also can reduce the probability of the loosening back of hold-down screw circuit board ground and metal mainstay disconnection on electric.
[description of drawings]
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the schematic top plan view of the earthing device of circuit board in the prior art TV.
Fig. 2 is that the cuing open of earthing device of circuit board in the prior art TV shown schematic diagram.
Fig. 3 is the schematic top plan view of the earthing device of circuit board in the utility model TV.
Fig. 4 is that the cuing open of earthing device of circuit board in the utility model TV shown schematic diagram.
[embodiment]
See also Fig. 3 and Fig. 4, the earthing device of circuit board can be used in the double-sided PCB of panel TV in the utility model TV, it lies in circuit board 3 bottom surfaces one ground wire Copper Foil 31 is set, on circuit board 3, offer the installing hole 30 that wears for screw 5, the position of described ground wire Copper Foil 31 corresponding installing holes 30 is the pad 1 of band circular hole 10, and circular hole 10 diameters of described pad 1 equal the diameter of screw 5.It below circuit board 3 metallic plate 4, the position of corresponding installing hole 30 vertical extent that makes progress has circular metal pillar 2 on this metallic plate 4, in metal mainstay 2, be provided with internal thread, to cooperate with screw 5, pad 1 part of described ground wire Copper Foil 31 contacts with metal mainstay 2 tops, also be provided with pad 6 on circuit board 3 end faces, the position of corresponding installing hole 30 also offers the circular hole of diameter and screw 5 equal diameters on the described pad 6.Screw 5 is threaded with the metal mainstay 2 of metallic plate 4 pass pad 1 circular hole 10 of installing hole 30, ground wire Copper Foil 31 of hole on the pad 6, circuit board 3 from circuit board 3 tops after, utilizes the pressure of hold-down screw 5 that pad 6, pad 1 are combined with metal mainstay 2.
Difference from prior art is that mainly circuit board 3 end faces of the present utility model are provided with pad 6, and the position of corresponding installing hole 30 also offers the circular hole 10 of diameter and screw 5 equal diameters on the described pad 6.
Be equipped with a plurality of metallization via holes 14 on the pad of described circuit board 3 end faces and bottom surface, described metallization via hole 14 distributes in the form of a ring around the circular hole 10 on the pad 1, two pads can be electrically connected by described metallization via hole 14.Described screw 5 passes through hole on two pads, the installing hole on the circuit board 3, embeds in the hole of described circular metal pillar 2, and the pressure of screw 5 combines two ground pads to finish with metal mainstay 2 and is electrically connected.
The earthing device of the utility model television circuit plate 3 has increased by a pad 6 at the end face of circuit board 3, and this pad 6 is electrically connected with the ground pads 1 of circuit board 3 bottom surfaces, with hold-down screw 5 urgent after, the long-pending area that adds screwing 5 nuts in metal part partial cross-section that area is a metal mainstay 2 that is connected of the ground wire of circuit board 3 and metal mainstay 2.Connect the area change and cause electric electric conductivity value to increase greatly, the electric conductivity value between the ground wire of circuit board 3 and the metal mainstay 2 increases.If hold-down screw 5 is urgent, is grounded device by the pad 1 of the bottom surface that is positioned at circuit board 3 and metal mainstay 2 and the pad 6 that is positioned at circuit board 3 end faces with hold-down screw 5 nuts two parts and is electrically connected.If hold-down screw 5 is loosening may cause the pad 1 of circuit board 3 bottom surfaces to break away from metal mainstay 2 time, contact as yet disengaging with the nut of hold-down screw 5 as long as be positioned at the pad 6 of circuit board 3 end faces, then still can guarantee certain being electrically connected to reach the purpose of electronic product ground connection, shielding, filtering, antistatic.So set the probability that pad 6 also can reduce the disconnection on electric of hold-down screw 5 loosening back circuit board 3 ground wires and metal mainstay 2 at circuit board 3 end faces.
Claims (5)
1. the earthing device of double-sided PCB in the panel TV, lie in circuit board bottom surface one ground wire Copper Foil is set, on circuit board, offer the installing hole that wears for screw, the position of the corresponding installing hole of described ground wire Copper Foil is a pad with holes, it below circuit board metallic plate, the position of corresponding installing hole extends upward the circular metal pillar on this metallic plate, and the pad of described ground wire Copper Foil contacts with the metal mainstay top; Screw passes the pad hole of installing hole, ground wire Copper Foil of described circuit board from circuit board top after, be connected with the metal mainstay of metallic plate; It is characterized in that: also be provided with another pad with holes on the described board top surface, described end face pad partly contacts with the nut of screw, and is electrically connected with the ground wire Copper Foil of circuit board bottom surface.
2. the earthing device of double-sided PCB in the panel TV as claimed in claim 1 is characterized in that: be equipped with the metallization via hole of position correspondence on described end face pad and the bottom surface pad, described end face pad and bottom surface pad are electrically connected by the metallization via hole.
3. the earthing device of double-sided PCB in the panel TV as claimed in claim 2 is characterized in that: described pad is provided with a plurality of metallization via holes, and described metallization via hole distributes in the form of a ring around the hole on end face, the bottom surface pad.
4. the earthing device of double-sided PCB in the panel TV as claimed in claim 1 is characterized in that: described end face pad is identical with the bottom surface pad structure.
5. as the earthing device of double-sided PCB in each described panel TV in the claim 1 to 4, it is characterized in that: the circular metal pillar madial wall of described metallic plate is provided with the screw thread that can match with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200153169U CN200956411Y (en) | 2006-10-19 | 2006-10-19 | Two-sided PCB earthing device for flat screen television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200153169U CN200956411Y (en) | 2006-10-19 | 2006-10-19 | Two-sided PCB earthing device for flat screen television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200956411Y true CN200956411Y (en) | 2007-10-03 |
Family
ID=38774994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200153169U Expired - Fee Related CN200956411Y (en) | 2006-10-19 | 2006-10-19 | Two-sided PCB earthing device for flat screen television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200956411Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8159833B2 (en) * | 2008-02-29 | 2012-04-17 | Kabushiki Kaisha Toshiba | Printed circuit board, method for forming frame ground for printed circuit board, and electronic device |
| CN101600293B (en) * | 2008-06-05 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Printing circuit board |
| CN105409065A (en) * | 2013-07-16 | 2016-03-16 | 菲尼克斯电气公司 | Contact device for establishing an electrical connection to a contact point of a printed circuit board |
| CN105578370A (en) * | 2016-03-15 | 2016-05-11 | 深圳捷力泰科技开发有限公司 | Electret microphone |
| CN107635385A (en) * | 2017-07-31 | 2018-01-26 | 武汉芯宝科技有限公司 | ESD full-shield functions paper tinsel, ESD full-shields function paper tinsel circuit board and manufacture method |
-
2006
- 2006-10-19 CN CNU2006200153169U patent/CN200956411Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8159833B2 (en) * | 2008-02-29 | 2012-04-17 | Kabushiki Kaisha Toshiba | Printed circuit board, method for forming frame ground for printed circuit board, and electronic device |
| CN101600293B (en) * | 2008-06-05 | 2012-05-16 | 鸿富锦精密工业（深圳）有限公司 | Printing circuit board |
| CN105409065A (en) * | 2013-07-16 | 2016-03-16 | 菲尼克斯电气公司 | Contact device for establishing an electrical connection to a contact point of a printed circuit board |
| CN105409065B (en) * | 2013-07-16 | 2018-05-18 | 菲尼克斯电气公司 | For establishing the contact device of electrical connection with the contact of printed circuit board |
| CN105578370A (en) * | 2016-03-15 | 2016-05-11 | 深圳捷力泰科技开发有限公司 | Electret microphone |
| CN107635385A (en) * | 2017-07-31 | 2018-01-26 | 武汉芯宝科技有限公司 | ESD full-shield functions paper tinsel, ESD full-shields function paper tinsel circuit board and manufacture method |
| CN107635385B (en) * | 2017-07-31 | 2024-04-30 | 武汉芯宝科技有限公司 | ESD full-shielding functional foil, full-shielding functional foil circuit board and manufacturing method |
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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: 20071003 Termination date: 20131019 |