CN102496820B - Connector of telephone - Google Patents
Connector of telephone Download PDFInfo
- Publication number
- CN102496820B CN102496820B CN 201110393172 CN201110393172A CN102496820B CN 102496820 B CN102496820 B CN 102496820B CN 201110393172 CN201110393172 CN 201110393172 CN 201110393172 A CN201110393172 A CN 201110393172A CN 102496820 B CN102496820 B CN 102496820B
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- socket
- telephone
- plug
- pcb board
- hood
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- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses a connector of a telephone, which belongs to the electronic field and comprises a socket, a plug, a metal casing cover, a printed circuit board (PCB) and a tail cover. A patch three-terminal electromagnetic interference (EMI) filter is arranged on the PCB and used for filtering signals of the telephone. The socket is arranged in the metal casing cover and detachably connected with a telephone casing. The tail cover is connected with the plug, and an electric conduction contact face of the tail cover is detachably and electrically connected with the telephone casing. The tail cover leads a shielding layer of a handle shielded cable and the socket to form electrical connection and to be grounded through the telephone casing. When the plug is inserted into the socket,the plug and the socket are totally wrapped by the tail cover, the PCB and the metal casing cover. By arranging the patch three-terminal EMI filter, electromagnetic signal radiation leakage of the telephone is reduced, and the detachable metal casing cover and the detachable tail cover facilitate installation and maintenance.
Description
Technical field
The present invention relates to electronic applications, particularly a kind of telephone set connector.
Background technology
In the development course of telecommunications industry, fixed telephone is a kind of is all playing the part of important role.In present stage, though mobile phone user's quantity constantly increases, fixed telephone is because itself hangs down plurality of advantages such as radiation, speech quality height, sound clarity, and a lot of users still use landline telephone to carry out communication.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
Telephone set of the prior art adopts the RJ9 socket to connect Telephone handset mostly, punching three end electromagnetic interface filters are installed in perforate on the phone metal-back, and connect Telephone handset at punching three end electromagnetic interface filters welding coiled handset cord, but the mode by welding connects the mode of Telephone handset, and obviously bringing aspect installation and maintenance in a lot of inconvenience and the conversation has noise or noise.
Summary of the invention
In order to improve speech quality, and be convenient to installation and maintenance, the embodiment of the invention provides a kind of telephone set connector.Described technical scheme is as follows:
A kind of telephone set connector comprises socket, plug, metal shell cover, pcb board and hood;
Described metal shell cover is cavity body structure, and is suitable with described socket, is used for built-in described socket, and removably connects with telephone casing;
Described socket one end connects described pcb board, connects telephone casing by described pcb board, and the other end of described socket is used for connecting described plug;
Described pcb board connects described socket, and an end that connects described socket is covered with metal level, fixedly connected with described metal shell cover, and described pcb board is provided with paster three end electromagnetic interface filters, is used for the signal of telephone set is filtered;
Described plug comprises insertion end and tail end, and the insertion end of described plug is used for connecting described socket, and the tail end of described plug connects described hood; Described plug is provided with coiled handset cord, and the tail end that described coiled handset cord passes described hood and described plug is connected the insertion end of described plug;
Described hood is cavity body structure, is provided with conductive contact surfaces at an end that connects described plug; When described plug inserted described socket, the conductive contact surfaces of described hood carried out dismountable the electrical connection with described telephone casing, and described hood, described pcb board and described metal shell cover coat described plug and described socket fully.
Preferred as technique scheme, the edge of described metal shell cover is provided with one or more screws, is used for fixing described telephone casing.
Preferred as technique scheme, described pcb board is fixedlyed connected by welding manner with described metal shell cover.
Preferred as technique scheme, the metal level that covers on the described pcb board is copper layer or aluminium lamination.
Preferred as technique scheme, described pcb board is doubling plate or four laminates.
Preferred as technique scheme, described pcb board also is provided with a plurality of pads, is used for welding earphone, microphone lines.
Preferred as technique scheme also is provided with the crimping locking device on the described hood, be used for fixedlying connected with joint when described hood jointing.
Preferred as technique scheme, the conductive contact surfaces outside of described hood also is provided with conductive rubber slab, and described conductive rubber slab is fixedlyed connected with telephone casing.
Preferred as technique scheme, described conductive rubber slab is fixedlyed connected with described telephone casing by screw.
Preferred as technique scheme, the thickness of described conductive rubber slab is less than 0.5mm.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: by paster three end electromagnetic interface filters are set, reduced the electromagnetic signal radiation leakage of telephone set.And, Demountable metallic jacket and hood are set, be convenient to installation and maintenance.In addition, the hood that arranges can have reliable the electrical connection and reliable ground connection with telephone casing, reduced signal to external radiation, and increased antijamming capability, form a complete shield by metal shell cover, hood and pcb board, even under the strong-electromagnetic field disturbed condition, do not have tangible noise in the telephone receiver or exchange interfering noise etc., shield effectiveness is very good.
Description of drawings
Fig. 1 is the structural representation of the telephone set connector that provides in the embodiment of the invention 1;
Fig. 2 is the connection diagram that the paster three end electromagnetic interface filters that provide in the embodiment of the invention 1 are applied to filter action;
Fig. 3 is that the paster three end electromagnetic interface filters that provide in the embodiment of the invention 1 are applied to the connection diagram that the time spent is done in decoupling;
Fig. 4 is the pad structure schematic diagram of the pcb board that provides in the embodiment of the invention 1;
Fig. 5 is the transfer impedance and insertion loss graph of a relation that provides in the embodiment of the invention 1.
The primary clustering explanation:
1, socket 2, plug 3, metal shell cover 4, pcb board 5, hood
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Participate in Fig. 1, the invention provides a kind of telephone set connector, described telephone set connector comprises: socket 1, plug 2, metal shell cover 3, pcb board 4 and hood 5, wherein, metal shell cover 3 is cavity body structure, suitable with socket 1, be used for built-in socket 1, and removably connect with telephone casing;
Pcb board 4 gang sockets 1, an end of gang socket 1 is covered with metal level, fixedly connected with metal shell cover 3, and pcb board 4 is provided with paster three end electromagnetic interface filters, is used for the signal of telephone communication is filtered;
Hood 5 is cavity body structure, is provided with conductive contact surfaces at an end of attachment plug 2; When plug 2 inserted socket 1, the conductive contact surfaces of hood 5 carried out dismountable the electrical connection with telephone casing, and hood 5, pcb board 4 coat plug 2 and socket 1 fully with metal shell cover 3.
Hood 5 among the present invention can form the screen of handle shielded type cable and be electrically connected with socket 1, and by telephone casing ground connection.
Particularly, socket 1 is built in the metal shell cover 3, and this socket 1 can be plastic socket, and the present invention does not do restriction to the material of socket 1, also can be common RJ9 socket, and the present invention does not do restriction to the model of socket.
In the practical application, when placing socket 1 in the metal shell cover 3, the lead-in wire peeling of gang socket 1 can be exposed copper cash, behind the wicking, socket 1 be pushed metal shell cover 3, be built in the metal shell cover 3.
Pcb board 4 is provided with paster three end electromagnetic interface filters, is used for the signal of telephonic communication process is filtered, and plays the effect of filter, in the embodiment of the invention, the paster three end electromagnetic interface filters that arrange are: model 0805, three end electromagnetic interface filter 10000pf, withstand voltage 100V.Because voice frequency is in 3000Hz, the present invention selects the three end electromagnetic interface filters of 10000pf, be for effective noise suppression and reduce radiation, at this moment, it is nearly 10dB that the shield that the present invention forms can effectively improve the insertion loss, see also Fig. 2, Fig. 3, the present invention has provided connection diagram and the paster three end electromagnetic interface filters that paster three end electromagnetic interface filters are applied to filter action and has been applied to the connection diagram that the time spent is done in decoupling.
This pcb board 4 connects the socket 1 that places in the metal shell cover 3, and an end of gang socket 1 is covered with metal level, be called casing ground cover layer, i.e. cover layer safely, preferably, the edge soldering of casing ground cover layer and metal shell cover 3 together, thereby pcb board 4 and metal shell cover 3 coat socket 1 get up.The metal level that covers on the pcb board 4 can be metal soldering-tin layer arbitrarily such as copper layer, aluminium lamination.This pcb board 4 can be doubling plate, four laminates, and the present invention does not do restriction.
In addition, also be provided with a plurality of pads on the centre position of pcb board 4, as shown in Figure 4, be provided with 4 pads, be used for welding earphone cord and microphone lines, thereby with loudspeaker, Mike's signal by being transferred on the pcb board 4, by the paster three end electromagnetic interface filters on the pcb board 4 audible warning that produces in the telephone set communication process and Mike's signal are carried out filtering and handle, reduced the noise in the receiver or exchanged interfering noise.
Wherein, plug 2 comprises insertion end and tail end, and the insertion end of plug 2 connects the socket 1 that places in the metal shell cover 3, and the tail end of plug 2 connects hood 5.
Wherein, hood 5 is cavity body structure, end in attachment plug 2 is provided with conductive contact surfaces, hood 5 is by conductive contact surfaces attachment plug 2, the conductive contact surfaces of hood 5 contacts with metal shell cover 3 and the telephone casing of socket 1 outside, make screen and telephone casing have good, be electrically connected and ground connection reliably reliably, reduced signal to external radiation and increase antijamming capability.
Preferably, also be provided with the crimping locking device on the hood 5, when hood 5 jointings, this hood 5 can be fixedlyed connected with joint.
In addition, in order to reach better shield effectiveness, the present invention is also at the conductive contact surfaces arranged outside conductive rubber slab of hood 5, conductive rubber slab is fixedlyed connected with telephone casing, form a complete shield, preferably, employing is less than the conductive rubber slab of 0.5mm, and shield effectiveness is preferable.Wherein, conductive rubber slab is fixedlyed connected with described telephone casing by screw, when adopting the thick conductive rubber slab of 0.5mm, and the shield effectiveness the best that reaches.
In addition, under given frequency, be connected to the feedthrough three end electromagnetic interface filters of given transmission system or the insertion loss of filter and be defined as: before measured piece inserts and after inserting, the ratio of the voltage that the line scan pickup coil side of insertion point occurs.During measurement, insert loss 1L and can be expressed as under specific 50 Ω impedance systems, when inserting measured piece and not inserting measured piece, keep the ratio of the constant required input voltage of output voltage: 1L=20logE
1/ E
2,
Wherein, 1L represents to insert loss, and unit is decibel dB; E
1The output voltage of signal source when the expression measured piece inserts measuring circuit, unit is volt V; E
2The output voltage of signal source when expression does not insert measured piece, unit is volt V.
When measuring with network analyzer or spectrum analyzer, keep the output voltage of instrument constant, the output voltage of register instrument and input voltage ratio are represented with decibel.
When the present invention selects filter for use, must be source impedance Z
S, load impedance Z
LSupporting with filter, namely source impedance, load impedance and filter are connected according to certain impedance relationship.Wherein, source impedance Z
S, load impedance Z
LWith transfer impedance Z
TCalculate the insertion loss according to following relational expression:
And transfer impedance Z
LHave corresponding relation with the insertion loss, corresponding relation is referring to transfer impedance shown in Figure 5 and insertion loss graph of a relation.
If source impedance is 100 Ω, when load impedance is 8 Ω, if when obtaining to be equivalent to insertion loss 40dB under the 50 Ω systems, at first check in from transfer impedance figure, the transfer impedance of the insertion loss 40dB correspondence under the 50 Ω systems is 0.25 Ω.
Therefore, when source impedance=100 Ω, load impedance=8 Ω, transfer impedance=0.25 Ω, the insertion loss of estimation gained is:
Therefore, Ci Shi insertion loss is 29.7dB.
Telephone set connector provided by the invention, by plug 2 and socket 1 are arranged metal shell cover 3, socket 1 is formed a metallic shield, and, the hood 5 that arranges can have reliable the electrical connection and ground connection reliably with telephone casing, reduced signal to external radiation, and increased antijamming capability, form a complete shield by metal shell cover 3, hood 5 and pcb board 4, shield effectiveness is very good; In addition, by paster three end electromagnetic interface filters are set, played the effect of filtering, the shield of formation can effectively improve the insertion loss.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a telephone set connector comprises socket (1) and plug (2), it is characterized in that, described telephone set connector also comprises metal shell cover (3), pcb board (4) and hood (5);
Described metal shell cover (3) is cavity body structure, and is suitable with described socket (1), is used for built-in described socket (1), and removably connects with telephone casing;
Described socket (1) one end connects described pcb board (4), connects telephone casing by described pcb board (4), and the other end of described socket (1) is used for connecting described plug (2);
Described pcb board (4) connects described socket (1), and an end that connects described socket (1) is covered with metal level, fixedly connected with described metal shell cover (3), and described pcb board (4) is provided with paster three end electromagnetic interface filters;
Described plug (2) comprises insertion end and tail end, and the insertion end of described plug (2) is used for connecting described socket (1), and the tail end of described plug (2) connects described hood (5); Described plug (2) is provided with coiled handset cord, and the tail end that described coiled handset cord passes described hood (5) and described plug (2) is connected the insertion end of described plug (2);
Described hood (5) is cavity body structure, is provided with conductive contact surfaces at an end that connects described plug (2); When described plug (2) inserts described socket (1), the conductive contact surfaces of described hood (5) carries out dismountable the electrical connection with described telephone casing, and described hood (5), described pcb board (4) coat described plug (2) and described socket (1) fully with described metal shell cover (3).
2. telephone set connector as claimed in claim 1 is characterized in that, the edge of described metal shell cover (3) is provided with one or more screws, fixing described telephone casing.
3. telephone set connector as claimed in claim 1 or 2 is characterized in that, described pcb board (4) is fixedlyed connected by welding manner with described metal shell cover (3).
4. telephone set connector as claimed in claim 1 is characterized in that, the metal level that covers on the described pcb board (4) is copper layer or aluminium lamination.
5. telephone set connector as claimed in claim 1 is characterized in that, described pcb board (4) is doubling plate or four laminates.
6. telephone set connector as claimed in claim 1 is characterized in that, described pcb board (4) also is provided with a plurality of pads, is used for welding earphone, microphone lines.
7. telephone set connector as claimed in claim 1 is characterized in that, described hood also is provided with the crimping locking device on (5), is used for fixedlying connected with joint when described hood (5) jointing.
8. as claim 1 or 7 described telephone set connectors, it is characterized in that the conductive contact surfaces outside of described hood (5) also is provided with conductive rubber slab, described conductive rubber slab is fixedlyed connected with telephone casing.
9. telephone set connector as claimed in claim 8 is characterized in that, described conductive rubber slab is fixedlyed connected with described telephone casing by screw.
10. telephone set connector as claimed in claim 9 is characterized in that, the thickness of described conductive rubber slab is less than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110393172 CN102496820B (en) | 2011-11-28 | 2011-11-28 | Connector of telephone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110393172 CN102496820B (en) | 2011-11-28 | 2011-11-28 | Connector of telephone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102496820A CN102496820A (en) | 2012-06-13 |
| CN102496820B true CN102496820B (en) | 2013-09-11 |
Family
ID=46188619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110393172 Active CN102496820B (en) | 2011-11-28 | 2011-11-28 | Connector of telephone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102496820B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105375090A (en) * | 2015-12-09 | 2016-03-02 | 重庆大及电子科技有限公司 | Quickly mounted filter board |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3699498A (en) * | 1970-04-30 | 1972-10-17 | Bell Telephone Labor Inc | Devices for making electrical connections |
| US4698025A (en) * | 1986-09-15 | 1987-10-06 | Molex Incorporated | Low profile modular phone jack assembly |
| CN2141937Y (en) * | 1992-12-18 | 1993-09-08 | 萧添荣 | Improved socket for telephone line |
| CN202474376U (en) * | 2011-11-28 | 2012-10-03 | 太原斯利德电子技术有限公司 | Telephone connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3800536B2 (en) * | 2002-12-06 | 2006-07-26 | Ｔｄｋ株式会社 | Modular jack |
-
2011
- 2011-11-28 CN CN 201110393172 patent/CN102496820B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3699498A (en) * | 1970-04-30 | 1972-10-17 | Bell Telephone Labor Inc | Devices for making electrical connections |
| US4698025A (en) * | 1986-09-15 | 1987-10-06 | Molex Incorporated | Low profile modular phone jack assembly |
| CN2141937Y (en) * | 1992-12-18 | 1993-09-08 | 萧添荣 | Improved socket for telephone line |
| CN202474376U (en) * | 2011-11-28 | 2012-10-03 | 太原斯利德电子技术有限公司 | Telephone connector |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-186099A 2004.07.02 |
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| Publication number | Publication date |
|---|---|
| CN102496820A (en) | 2012-06-13 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: GUO ZIMIN Free format text: FORMER OWNER: TAIYUAN SHIELD ELECTRONICS TECHNOLOGIES CO., LTD. Effective date: 20120731 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120731 Address after: 030006, Shanxi Taiyuan high tech Zone, science and Technology Street, 9, the first floor of Yi Yi Science Park Applicant after: Guo Zimin Address before: 030006, Shanxi Taiyuan high tech Zone, science and Technology Street, 9, the first floor of Yi Yi Science Park Applicant before: Taiyuan Shield Electronics Technologies Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160830 Address after: 030006, Shanxi Taiyuan high tech Zone, science and Technology Street, 9, the first floor of Yi Yi Science Park Patentee after: Taiyuan Shield Electronics Technologies Co.,Ltd. Address before: 030006, Shanxi Taiyuan high tech Zone, science and Technology Street, 9, the first floor of Yi Yi Science Park Patentee before: Guo Zimin |