CN2706918Y - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN2706918Y CN2706918Y CN 200420027324 CN200420027324U CN2706918Y CN 2706918 Y CN2706918 Y CN 2706918Y CN 200420027324 CN200420027324 CN 200420027324 CN 200420027324 U CN200420027324 U CN 200420027324U CN 2706918 Y CN2706918 Y CN 2706918Y
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- China
- Prior art keywords
- terminal
- arm
- plug
- holding parts
- electric connector
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- 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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Abstract
The utility model discloses an electric connector arranged on the circuit board, comprising an isolation body provided with an inserting hole, a first terminal gathered in the isolation body, a second terminal, a third terminal and a fourth terminal. The fourth terminal comprises an L'-shaped plate type holding part, backstop arms respectively extending from the two ends of one arm of the holding part and a fourth contact finger. After the electric connector is assembled, the backstop arm effectively bunts on the holding step of the first terminal. The structure is helpful to preventing the phenomenon of the back bunting in the use process of the first terminal. The performance of the electrically conductive connection of the electric connector is ensured.
Description
[technical field]
The utility model relates to a kind of electric connector, refers to a kind of electric connector of tool circuit handoff functionality especially.
[background technology]
With the increase of electric equipment function module and reducing of profile, its electric connector structure is also increasingly sophisticated, and size also reduces day by day.The electric connector that has occurred tool circuit handoff functionality thus, these electric connectors had a conductive path before inserting plug, and after inserting plug, former conductive path disconnects, and forming one of a former conductive path terminal and an other terminal connects with the both positive and negative polarity of attaching plug respectively, form another conductive path, the size of these electric connectors is generally less.
The electric connector of above-mentioned tool circuit handoff functionality is common in the voice socket connector or power supply switches connector, and existing this type electric connector generally comprises insulating body, is contained in center terminal and the first terminal and second terminal that insulating body both positive and negative polarity interior and banjo connects.Center terminal has cylindric contact jaw, and after plug inserted, center terminal one end and banjo connected, and its other end and second terminal connect, and this second terminal other end and circuit board connect simultaneously.The first terminal one end and banjo connect, and the other end and circuit board connect, and constitute the galvanic circle with this.
Chinese patent application has promptly disclosed this kind electric connector No. 200320120741.0, please in conjunction with consulting Figure 1 and Figure 2, electric connector 1 is used to be installed on circuit board (not shown), and it comprises the insulating body 10 that is provided with jack 100, is contained in the insulating body 10 and center terminal 12, the first terminal 14, second terminal 16 and the 3rd terminals 18 separated from one another.Center terminal 12 comprises cylinder arm 120 and the fixing step 122 that circumferentially protrudes out from cylinder arm 120 1 ends.Cylinder arm 120 inserts jack 100 centre positions and can connect the tail end of fixing step 122 and second terminal, 16 butts with banjo 2.The first terminal 14 comprises first contact arm 140 that can connect with banjo 2 and second contact arm 142 that connects with circuit board.Second terminal 16 comprises for the tabular fixing wall 160 of fixing step 122 butts of center terminal 12 and the 3rd contact arm 162 that connects with circuit board.The 3rd terminal 18 is included in the 4th contact arm 180 that preceding and center terminal 12 that plug 2 inserts connects and the 5th contact arm 182 that connects with circuit board, the 4th contact arm 180 is provided with collets 184, after plug 2 inserted, plug 2 promotes collets 184 made the 4th contact arm 180 separate with center terminal 12.When plug 2 inserts, center terminal 12 is realized the location thereby the fixing step 122 of center terminal 12 is connected on the fixing wall 160 of second terminal 16.
The center terminal 12 of this electric connector 1 relies on fixing step 122 to be connected on the fixing wall 160 of second terminal 16, fixing wall 160 only can be center terminal 12 active force that is parallel to the plug direction of insertion is provided, when plug 2 push-on forces are big, may cause the deflection of center terminal 12 and then produce the phenomenon that center terminal 12 is moved back by the top, must influence it like this and be electrically conducted performance.
Given this, be necessary to provide a kind of improved electric connector, to overcome the defective of above-mentioned electric connector.
[utility model content]
The purpose of this utility model is to provide a kind of can realize that accurately the location also can effectively prevent the electric connector that it is moved back by the top to center terminal.
The purpose of this utility model so realizes: a kind of electric connector that is installed on the circuit board, it comprises the insulating body that is provided with jack, the first terminal that is contained in insulating body, second terminal, the 3rd terminal and the 4th terminal.The first terminal comprises cylinder arm and the fixing step that circumferentially protrudes out from cylinder arm one end.The 4th terminal comprises the tabular holding parts of " L " type and along the holding parts catch arm and the 4th contact finger that extend respectively of the two ends of an arm wherein.After the assembling of this electric connector was finished, above-mentioned catch arm effectively was connected to the periphery of the first terminal fixing step, and the salient point on the 4th terminal is connected on the first terminal fixing step surface perpendicular to its central shaft.
The utility model test is with the advantage of electric connector: salient point and catch arm provide respectively axially and active force radially for the first terminal, above-mentioned two active force co the first terminals, and the thrust direction that the force direction that catch arm provides is subjected in assembling process perpendicular to the first terminal, therefore this active force has prevented that effectively the first terminal is extruded its original position and causes its unnecessary rocking in insulating body under thrust, this active force reliability is preferable, thereby this structure helps preventing that the first terminal from moving back the performance that is electrically conducted that phenomenon guarantees this electric connector on the top that use takes place.
[description of drawings]
Fig. 1 is a kind of three-dimensional exploded view of existing electric connector.
Fig. 2 is an electric connector shown in Figure 1 and cutaway view after plug docks.
Fig. 3 is the three-dimensional combination figure of the utility model electric connector.
Fig. 4 is the three-dimensional exploded view of the utility model electric connector.
Fig. 5 is the cutaway view of the utility model electric connector along V-V direction among Fig. 3.
Fig. 6 is that the utility model electric connector docks the cutaway view of back along V-V direction among Fig. 3 with plug.
Fig. 7 is the stereogram of the 4th terminal of the utility model electric connector.
[embodiment]
Consult Fig. 3 to Fig. 7, electric connector 3 of the present utility model is a kind of cellular phone power supplies connectors that are installed on the circuit board (not shown), and it comprises the insulating body 30 that is provided with jack 300 and the first terminal 31, second terminal 32, the 3rd terminal 33 and the 4th terminal 34 that are contained in insulating body 30.
The jack 300 of insulating body 30 can hold an attaching plug 5 and insert, and has interface 301 perpendicular to direction of insertion, the breech face 305 relative with interface 301 and is parallel to direction of insertion and in order to be installed on the installed surface 303 on the circuit board in plug 5 insertion ends.Jack 300 is the circular counter bore of offering from interface 301, and offers the stepped hole 302 that connects with jack 300 in breech face 305 corresponding jacks 300 centre positions.
The fixing step 310 that the first terminal 31 is provided with cylinder arm 312 and circumferentially protrudes out from cylinder arm 312 1 ends, this fixing step 310 stepped hole 302 of packing into.The first terminal 31 inserts insulating body 30 from breech face 305, and cylinder arm 312 stretches into jack 300 centre positions and can connect with the plug 5 that inserts jack 300, and the tail end of fixing step 310 and the 4th terminal 34 butts.
The 3rd terminal 33 is along in the insulating body 30 of packing into perpendicular to installed surface 303 directions, and is in a side position relative with second holding parts 320 of jack 300.The 3rd terminal 33 is provided with the 3rd holding parts 330 that is parallel to plug 5 direction of insertion and can cooperates with insulating body 30, an end that is connected in the 3rd holding parts 330 close direction of insertion bends and is tilted to cantilever-shaped the 3rd elastic arm 332 that direction of insertion is extended to jack 300 directions, be connected in the 3rd contact site 334 of the 3rd elastic arm 332 ends, the 3rd contact finger 338 that extends on the installed surface 303 near a side of installed surfaces 303 and can connect with circuit board from the 3rd holding parts 330, and the collets 335 that protrude to jack 300 1 sides in the junction of the 3rd elastic arm 332 and the 3rd contact site 334, collets 335 and the 3rd terminal 33 are one-body molded and form.Before plug 5 inserted, the 3rd contact site 334 contacted with the first terminal 31, and after plug 5 inserted, plug 5 promotes collets 335 disconnected the 3rd contact site 334 and the first terminal 31, and keeps plug 5 and the 3rd terminal 33 to electrically disconnect.
The 4th terminal 34 is provided with that tabular the 4th holding parts 340, the four terminals 34 of " L " shape comprise tabular the 4th holding parts 340 of " L " type and along the 4th holding parts 340 catch arm 344 and the 4th contact finger 348 that extend respectively of the two ends of an arm wherein.The 4th contact finger 348 extended on the installed surface 303 and also can connect with circuit board after electric connector 3 assemblings were finished, and catch arm 344 is provided with in the same way from the offside extension of the 4th contact finger 348 and with the 4th contact finger 348.The arm that catch arm 344 and the 4th contact finger 348 are not set of the 4th holding parts 340 is perpendicular to plug 5 direction of insertion, and the centre position of this arm be provided with can with the salient point 346 of the first terminal 31 butts, the arm that catch arm 344 and the 4th contact finger 348 are set is installed in a side position of jack 300, and a side of the nearly installed surface 303 of this arm rest is provided with the 4th contact finger 348 that extends on the installed surface 303 and can connect with circuit board.
During assembling the utility model electric connector 3, can earlier the first terminal 31 be inserted from breech face 305, and then insert all the other each terminals, salient point 346 on the 4th terminal 34 the 4th holding parts 340 is connected on the fixing step 310 of the first terminal 31 surface perpendicular to these fixing step 310 central shafts, for the first terminal 31 provides an axial active force, catch arm 344 on the 4th terminal 34 the 4th holding parts 340 is connected on the periphery of the first terminal 31 fixing steps 310, for the first terminal 31 provides radially an active force, above-mentioned two active force actings in conjunction are positioned the fixing step 310 of the first terminal 31 in the stepped hole 302, after all assembling is finished electric connector 3 are installed on the circuit board.Insert before the plug 5, connect with the first terminal 31 with the 3rd terminal 33 of circuit board conducting, and return circuit board by 34 conductings of the 4th terminal.Insert after the plug 5, plug 5 promotion collets 335 disconnect the 3rd contact site 334 and the first terminal 31, and realize the first terminal 31 and second terminal 32 and plug 5 conductings of being with ancillary equipment.
If it is bigger to insert the process push-on force of plug 5, then can apply bigger axial motive force to the first terminal 31, and then the direction that promotes the first terminal 31 past salient points 346 moves, the first terminal 31 further compresses salient point 346, the catch arm 344 that is connected to this moment on the fixing step 310 of the first terminal 31 provides radially an active force for the first terminal 31, and the active force acting in conjunction that this active force and salient point 346 provide prevents that the push-on force of plug 5 from pushing up and moves back the first terminal 31.And the force direction that catch arm 344 provides is perpendicular to the thrust direction of plug 5, therefore prevented that effectively the first terminal 31 is extruded its original position and causes its unnecessary rocking in insulating body 30 under thrust, the active force reliability that this catch arm 344 provides is preferable, thereby effectively avoided the first terminal 31 to be moved back, guaranteed that it is electrically conducted performance by the top.
Claims (7)
1. electric connector, it comprises the insulating body that is provided with jack and the first terminal separated from one another, second terminal and the 3rd terminal, jack can hold a banjo with both positive and negative polarity and insert, and the first terminal and second terminal connected with the plug both positive and negative polarity respectively after plug inserted, it is characterized in that: this electric connector also is provided with the 4th terminal, the 4th terminal comprises the tabular holding parts that is provided with two arms that are in " L " type, wherein extend the 4th contact finger and catch arm respectively in the two ends of an arm along holding parts, the arm that holding parts is adjacent with being provided with an arm of catch arm acts on the rear end of the first terminal, and catch arm acts on the first terminal side and this force direction perpendicular to the plug direction of insertion.
2. electric connector as claimed in claim 1 is characterized in that: the 4th contact finger on the 4th terminal and catch arm are along extending in the same way.
3. electric connector as claimed in claim 2, it is characterized in that: the arm that the 4th holding parts of the 4th terminal is provided with catch arm is parallel to the position that the plug direction of insertion is installed in jack one side, and the 4th contact arm on this arm extends on the installed surface and can connect with circuit board, another arm is perpendicular to the plug direction of insertion, and this arm centre position be provided with can with the salient point of the first terminal butt.
4. electric connector as claimed in claim 1, it is characterized in that: the 3rd terminal is provided with the 3rd holding parts that is positioned at jack one side and can cooperates with insulating body, be connected in cantilever-shaped the 3rd elastic arm of the 3rd holding parts and be connected in the 3rd contact site of the 3rd elastic arm end, and be provided with the collets that protrude to jack one side in the junction of the 3rd elastic arm and the 3rd contact site, before plug inserts, the contact site of the 3rd terminal contacts with the first terminal, after plug inserts, plug promotes collets disconnects the 3rd contact site and the first terminal, and keeps plug and the 3rd terminal to electrically disconnect.
5. electric connector as claimed in claim 4, it is characterized in that: insulating body has interface perpendicular to direction of insertion, the breech face relative with interface and is parallel to direction of insertion and in order to be installed on the installed surface on the circuit board, the circular counter bore of jack for offering from interface in the plug insertion end.
6. electric connector as claimed in claim 5 is characterized in that: second terminal and the 3rd terminal are respectively equipped with flat second holding parts and the 3rd holding parts, and second holding parts is parallel to relative two side positions that direction of insertion is installed in jack with the 3rd holding parts.
7. electric connector as claimed in claim 6, it is characterized in that: second holding parts is provided with second elastic arm that is tilted to direction of insertion and extends, the contact site that is connected in the second elastic arm end and extends and can be connected to support portion on second holding parts from contact site to the bending of jack direction near an end of direction of insertion, plug inserts the back contact site and plug connects, and the support portion presses on second holding parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027324 CN2706918Y (en) | 2004-05-21 | 2004-05-21 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420027324 CN2706918Y (en) | 2004-05-21 | 2004-05-21 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706918Y true CN2706918Y (en) | 2005-06-29 |
Family
ID=34849562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420027324 Expired - Fee Related CN2706918Y (en) | 2004-05-21 | 2004-05-21 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706918Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891390A (en) * | 2011-07-20 | 2013-01-23 | 贵州航天电器股份有限公司 | Combined electric connector plug |
-
2004
- 2004-05-21 CN CN 200420027324 patent/CN2706918Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891390A (en) * | 2011-07-20 | 2013-01-23 | 贵州航天电器股份有限公司 | Combined electric connector plug |
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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: 20050629 Termination date: 20110521 |