CN202189968U - Filter and a combined-type filtering connector using the filter - Google Patents
Filter and a combined-type filtering connector using the filter Download PDFInfo
- Publication number
- CN202189968U CN202189968U CN201120208486XU CN201120208486U CN202189968U CN 202189968 U CN202189968 U CN 202189968U CN 201120208486X U CN201120208486X U CN 201120208486XU CN 201120208486 U CN201120208486 U CN 201120208486U CN 202189968 U CN202189968 U CN 202189968U
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- Prior art keywords
- filter
- ground plane
- connector
- contact
- metal shell
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- Expired - Fee Related
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Abstract
The utility model relates to a filter and a combined-type filtering connector using the filter. The filter is adopted in a connector. The filter includes a printed board having a pad layer and a grounding layer. The printed board is provided with a through hole for receiving a contact piece of the corresponding connector to go through. The outer periphery of the grounding layer is provided with a grounding structure. A contact structure used for connecting with the contact piece of the corresponding connector electrically is arranged on the grounding layer at a position corresponding to the through hole. A sheet-type capacitor is arranged on the pad layer. The grounding structure and the contact structure of the grounding layer connect with two electrodes of the corresponding sheet-type capacitor electrically through the grounding layer and the pad layer successively. The grounding structure of the grounding layer is a grounding spring used for contacting with a metal shell of the corresponding connector in a pressing manner. The grounding spring is arranged on the outer periphery of the grounding layer and turns over towards the side of the grounding layer. The filter in the utility model has the grounding spring as the grounding structure, thereby solving a problem of unreliable contact of a grounding layer of a connector having a filtering function and a metal shell in the prior art.
Description
Technical field
The utility model relates to and is electrically connected technical field, especially a kind of filter and use the composite type filter connector of this filter.
Background technology
Along with the integrated continuous reinforcement of electronic circuit and equipment, between circuit and the circuit and the interference problem between equipment and the equipment serious day by day, one of important means that addresses these problems is that circuit or equipment are carried out the filtering shielding.Application number is that 99255594.9 Chinese patent discloses a kind of noninductive isolation interference filter connector; Said noninductive isolation interference filter connector comprises metal shell and is assemblied in the said metal shell and in the contact of metal shell insulation coordination; Said contact is provided with filter; Said filter has the printed board of rigidity, printed board comprise pad layer that is welded with sheet capacitor and the ground plane that is used for ground connection, electrically connect through the via hole in the printed board between said ground plane and the pad layer; The input of sheet capacitor electrically connects through the contact of said pad layer and connector; Output electrically connects through corresponding via hole and said ground plane, and the periphery of ground plane and said metal shell electrically connect, and finally form a filter circuit; Eliminate interfering with each other between circuit and circuit or equipment and the equipment, purified useful signal.Above-mentioned noninductive isolation interference filter connector has obtained using widely in commercial production, but because some problems occurred.As because said ground plane is to lean on its periphery; Be that outer peripheral face contacts with the metal shell of connector; And the thickness of the conductive layer in the printed board often is restricted; Therefore the contact-making surface between the metal shell of ground plane and connector is minimum and do not have that external force is auxiliary to make the two reliable contact, and this has reduced the filtering performance that connects machine integral body greatly; In addition, because said printed board is a rigid printed board, therefore anti-adaptability to changes is poor, tends to damage because of the effect of connector internal stress, and this will directly cause the whole filtering of connector to be lost efficacy.
Summary of the invention
The purpose of the utility model is to provide a kind of filter, contacts insecure problem with metal shell to solve the ground plane that has the connector of filter function in the prior art; Simultaneously, the purpose of the utility model also is to provide a kind of composite type filter connector that uses above-mentioned filter.
In order to address the above problem; The filter of the utility model adopts following technical scheme: a kind of filter; Be used for connector; Comprise printed board with pad layer and ground plane; Have the through hole that the contact that supplies corresponding connector passes in the said printed board, the periphery of said ground plane has and is used for the ground structure that electrically connects with the metal shell of corresponding connector, and the corresponding said through hole of ground plane has and is used for the contact structures that electrically connect with the contact of corresponding connector; Be laid with sheet capacitor on the said pad layer; The ground structure of ground plane and contact structures electrically connect through the two poles of the earth of PCB routing and corresponding sheet capacitor respectively, and the ground structure of said ground plane is to be used for electrically pressing touching the grounding elastic part on the metal shell of corresponding connector, and said grounding elastic part is laid in the periphery of ground plane and turns down towards the homonymy of ground plane.
The contact structures of said ground plane are to be used for the elasticity pressure to touch the engaging nail on the contact of corresponding connector; Said engaging nail is identical with the turnover direction of said grounding elastic part towards the homonymy turnover and the turnover direction of ground plane.
The pad layer of said printed board and the corresponding position of ground plane electrically conduct through right plated-through hole.
Said printed board is a flexible printed board.
The composite type filter connector of the utility model adopts following technical scheme: the composite type filter connector; Comprise metal shell, be arranged at the filter in the said metal shell and pass said filter and be assemblied in the contact in the metal shell; Said filter comprises the printed board with pad layer and ground plane; Be laid with sheet capacitor on the said pad layer; Said metal shell and contact electrically connect with the two poles of the earth of corresponding sheet capacitor through PCB routing respectively, and the periphery of said ground plane upwards has the grounding elastic part towards its homonymy turnover, and described grounding elastic part elasticity is pressed and touched on said metal shell.
The cooperation place of said ground plane and said contact has the engaging nail that turns down in the same way with said grounding elastic part, and said engaging nail elasticity is pressed and touched on the contact of correspondence.
The pad layer of said printed board and the corresponding position of ground plane electrically conduct through right plated-through hole.
Said printed board is a flexible printed board.
Because its ground structure of filter of the utility model is set to described grounding elastic part; Therefore can press with the internal face elasticity of the metal shell of corresponding connector through said grounding elastic part in use and touch, increase the contact area between ground plane and the connector metal housing; In addition, because said grounding elastic part is that elasticity is pressed and to be touched on metal shell in use, the existence of elastic force has increased the reliability that contacts between grounding elastic part and the metal shell simultaneously; The ground plane that has solved the connector that has filter function in the prior art contacts insecure problem with metal shell.
Because the filter of the composite type filter connector of the utility model is provided with described grounding elastic part in the periphery of its ground plane, therefore can increase the contact area between the metal shell of ground plane and connector greatly; In addition, press and to touch on metal shell because said grounding elastic part is an elasticity, the existence of elastic force has increased the reliability that contacts between grounding elastic part and the metal shell simultaneously; In a word, after on the said ground plane said grounding elastic part being set, improved the contact performance between ground plane and the metal shell greatly, the ground plane that has solved the connector that has filter function in the prior art contacts insecure problem with metal shell.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 of the filter of the utility model;
Fig. 2 is the structural representation of embodiment 1 of the composite type filter connector of the utility model;
Fig. 3 is the median filter of Fig. 2 and the sketch map that cooperates of contact and metal shell.
Embodiment
The embodiment 1 of the filter of the utility model; As shown in Figure 1, have flexible printed board 1, adopt flexible printed board can improve the anti-stress of filter; Prevent that it is in use because connector internal stress and fracture damage; Printed board 1 is rounded and be double-deck printed board, and its one deck is a pad layer, and another layer is a ground plane; The periphery of ground plane upwards has and is used in use and the electrical ground structure of contact of the internal face of the metal shell of corresponding connector; Ground structure is the grounding elastic part 2 towards the turnover of ground plane the same side; During use; Thereby grounding elastic part 2 is used for elasticity and presses to touch on the internal face of the metal shell of corresponding connector and be grounded; Because the ground structure of ground plane adopts elastic piece structure; Therefore also between the metal shell of ground plane and corresponding connector, increase external force (being the reseting elasticity of grounding elastic part) when having increased the contact area between the metal shell of ground plane and corresponding connector, thereby can improve the contact performance between ground plane and the corresponding connector metal housing greatly, guaranteed the reliability of its contact; Has the through hole that the contact that supplies corresponding connector passes in the printed board 1; The corresponding said through hole of ground plane is provided with the contact structures that are used for corresponding contact electric connection; Contact structures are for to be assemblied in the engaging nail 3 on the ground plane through the contact pad that is arranged on the ground plane; Engaging nail 3 is located in said through hole periphery and turns down in the same way with above-mentioned grounding elastic part 2; Be used for when the contact of correspondence passes electrically pressing touching,, also increased the reliability that contacts between the two owing to be to press to touch to cooperate between engaging nail 3 and the contact in the contact periphery; Be laid with the sheet capacitor pad on the pad layer and be equipped with sheet capacitor 4 through its sheet capacitor pad welding, the ground structure of ground plane and contact structures electrically connect with the two poles of the earth of corresponding sheet capacitor through ground plane and pad layer respectively successively; Specifically; Be thereby that the utmost point of sheet capacitor 4 is routed to corresponding via hole 5 places that are arranged in the printed board through pad layer and electrically connects with ground plane; Electrically connect through ground plane wiring and grounding elastic part 2 then; Another of sheet capacitor 4 electrically connects through pad layer and corresponding via hole and ground plane extremely equally, electrically connects with corresponding engaging nail through the ground plane wiring then.So far, sheet capacitor is parallel between engaging nail and the grounding elastic part, promptly is parallel in use between contact and the metal shell of corresponding connector and forms filter circuit.The filter of present embodiment can be used for metal shell and is circular connector; Only need during use it is assemblied in the housing of corresponding connector and makes the metal shell Elastic Contact of said grounding elastic part and connector, make the contact of connector can realize filter function with electrical contact of said engaging nail.
In the foregoing description, said printed board 1 can also be rectangle, and in such cases, said filter is applicable to that metal shell is the connector of rectangle.Certainly, in other embodiments, according to the difference of the metal shell shape of corresponding connector, said printed board 1 can also be other corresponding shape.
The embodiment 1 of the composite type filter connector of the utility model; Shown in Fig. 1-3, have the metal shell 21 of band square plate, the square plate 27 of metal shell 21 is provided with conduction rubber cushion 22 near a side of its inserted terminal; Be equipped with contact 24 through insulator 23 in the metal shell 21; Contact 24 also is equipped with filter 25 through insulator 23 and metal shell 21 insulation coordination in the metal shell 21, filter 25 is identical with Filter Structures in the foregoing description 1; Repeat no more here; Filter 25 is assemblied in the metal shell 21 through insulator 23 and a grommet 26 jam-packeds, thus its grounding elastic part elasticity press to touch on metal shell 21 and electrically connect with metal shell, thereby engaging nail is pressed to touch on contact 24 and is electrically connected with contact; Sheet capacitor is parallel between metal shell and the contact the most at last, forms filter circuit.Because what adopt is the fabricated structure of press fit; Therefore in use, if filter breaks down, only the filter replacing is got final product; And do not need connector integral body is changed, this has also reduced the use cost of the composite type filter connector of the utility model in a certain sense.
Claims (8)
1. filter; Be used for connector; Comprise printed board with pad layer and ground plane; Have the through hole that the contact that supplies corresponding connector passes in the said printed board, the periphery of said ground plane has and is used for the ground structure that electrically connects with the metal shell of corresponding connector, and the corresponding said through hole of ground plane has and is used for the contact structures that electrically connect with the contact of corresponding connector; Be laid with sheet capacitor on the said pad layer; The ground structure of ground plane and contact structures electrically connect through the two poles of the earth of PCB routing and corresponding sheet capacitor respectively, it is characterized in that: the ground structure of said ground plane is to be used for electrically pressing touching the grounding elastic part on the metal shell of corresponding connector, and said grounding elastic part is laid in the periphery of ground plane and turns down towards the homonymy of ground plane.
2. filter according to claim 1 is characterized in that: the contact structures of said ground plane are to be used for the elasticity pressure to touch the engaging nail on the contact of corresponding connector; Said engaging nail is identical with the turnover direction of said grounding elastic part towards the homonymy turnover and the turnover direction of ground plane.
3. filter according to claim 1 is characterized in that: the pad layer of said printed board electrically conducts through corresponding plated-through hole with the corresponding position of ground plane.
4. according to each described filter of claim 1-3, it is characterized in that: said printed board is a flexible printed board.
5. composite type filter connector; Comprise metal shell, be arranged at the filter in the said metal shell and pass said filter and be assemblied in the contact in the metal shell; Said filter comprises the printed board with pad layer and ground plane; Be laid with sheet capacitor on the said pad layer; Said metal shell and contact electrically connect with the two poles of the earth of corresponding sheet capacitor through PCB routing respectively, it is characterized in that: the periphery of said ground plane upwards has the grounding elastic part towards its homonymy turnover, and described grounding elastic part elasticity is pressed and touched on said metal shell.
6. composite type filter connector according to claim 5 is characterized in that: the cooperation place of said ground plane and said contact has the engaging nail that turns down in the same way with said grounding elastic part, and said engaging nail elasticity is pressed and touched on the contact of correspondence.
7. composite type filter connector according to claim 5 is characterized in that: the pad layer of said printed board and the corresponding position of ground plane electrically conduct through right plated-through hole.
8. according to each described composite type filter connector of claim 5-7, it is characterized in that: said printed board is a flexible printed board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208486XU CN202189968U (en) | 2011-06-20 | 2011-06-20 | Filter and a combined-type filtering connector using the filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120208486XU CN202189968U (en) | 2011-06-20 | 2011-06-20 | Filter and a combined-type filtering connector using the filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189968U true CN202189968U (en) | 2012-04-11 |
Family
ID=45921403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120208486XU Expired - Fee Related CN202189968U (en) | 2011-06-20 | 2011-06-20 | Filter and a combined-type filtering connector using the filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189968U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427568A (en) * | 2012-05-17 | 2013-12-04 | 德昌电机(深圳)有限公司 | Motor |
| CN107069346A (en) * | 2017-03-22 | 2017-08-18 | 山东龙立电子有限公司 | High current super pressure-resistant filter connector and screening technique |
| CN108039604A (en) * | 2017-12-14 | 2018-05-15 | 沈阳兴华航空电器有限责任公司 | Four coaxial filter connectors |
| CN108601201A (en) * | 2018-04-11 | 2018-09-28 | Oppo广东移动通信有限公司 | Flexible PCB and electronic device |
-
2011
- 2011-06-20 CN CN201120208486XU patent/CN202189968U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427568A (en) * | 2012-05-17 | 2013-12-04 | 德昌电机(深圳)有限公司 | Motor |
| CN103427568B (en) * | 2012-05-17 | 2017-05-10 | 德昌电机(深圳)有限公司 | Motor |
| CN107069346A (en) * | 2017-03-22 | 2017-08-18 | 山东龙立电子有限公司 | High current super pressure-resistant filter connector and screening technique |
| CN108039604A (en) * | 2017-12-14 | 2018-05-15 | 沈阳兴华航空电器有限责任公司 | Four coaxial filter connectors |
| CN108601201A (en) * | 2018-04-11 | 2018-09-28 | Oppo广东移动通信有限公司 | Flexible PCB and electronic device |
| CN108601201B (en) * | 2018-04-11 | 2019-09-27 | Oppo广东移动通信有限公司 | Flexible circuit board 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: 20120411 Termination date: 20130620 |