CN201927729U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN201927729U CN201927729U CN2010206171896U CN201020617189U CN201927729U CN 201927729 U CN201927729 U CN 201927729U CN 2010206171896 U CN2010206171896 U CN 2010206171896U CN 201020617189 U CN201020617189 U CN 201020617189U CN 201927729 U CN201927729 U CN 201927729U
- Authority
- CN
- China
- Prior art keywords
- conducting terminal
- insulating body
- electric connector
- terminal
- elastic arm
- 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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Abstract
The utility model relates to an electric connector which is used for electrically connecting a chip module provided with a tin ball with a circuit board and comprises an insulating body provided with a plurality of terminal-holding grooves, and a plurality of conducting thermals held in the terminal-holding grooves, wherein each conducting terminal comprises a main body part, an elastic arm which is bent and extends upwards from the middle of a top end of the main body part, and a welding part which is bent and extends downwards from a bottom end of the main body part; a first concave groove communicated with one side of the terminal-holding groove is concavely formed downwards on an upper surface of the insulating body; a first holding space is formed between the elastic arm and the first concave groove, and the first holding space is used for holding the tin ball of the chip module and can prevent the conducting terminal from damaging due to a true position problem of the chip module; and two contact parts are arranged at a tail end of the elastic arm in a bifurcate way for clamping the tin ball of the chip module, so that two contact points are arranged between the conducting terminal and one side of the tin ball, and the favorable contact between the conducting terminal and the chip module is ensured.
Description
[technical field]
The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector of chip module to the circuit board that electrically connect.
[technical background]
Sphere grid (BGA) array electric connector is a kind of commercial use electric connector more and more widely, and this kind electric connector generally comprises insulating body, some groups of conducting terminal and some groups of tin balls that are located at the insulating body bottom surface that are located in the insulating body.Electric connector can be soldered on the circuit board by tin ball warp reflow soldering process, and is located at the tin ball of chip module below by the conducting terminal clamping, realizes the electric connection between chip module and circuit board.
The electric connector relevant with the utility model is used to electrically connect the chip module and the circuit board that are provided with the tin ball, such as Chinese utility model patent announce No. 201167199 announcement.This electric connector comprises insulating body, some conducting terminal and some groups of tin balls that are located at the insulating body below that are contained in the insulating body.Insulating body has upper surface and lower surface and the some terminal containing slots that runs through upper surface and lower surface setting that is oppositely arranged.The lower surface of insulating body upwards depression is provided with the receiving space that is positioned at the terminal containing slot below, is used to accommodate the tin ball.Conducting terminal comprises vertical tabular main part, extends two elastic arms of setting and two junctions that extended setting by main part straight down straight up by main part.Two elastic arm ends respectively are provided with a clamping part, are used for the tin ball of clamping chip module, realize electrically conducting between electric connector and chip module.Two junctions can contact with the tin ball that is positioned at the insulating body lower surface, and are connected on the circuit board by the tin ball bonding, realize electrically conducting between electric connector and circuit board.
But, because the contact site of chip module is spherical, electric connector only is clamped in tin ball both sides by the clamping part that conducting terminal stretches out two elastic arm ends of insulating body upper surface, has the contact problem of unstable and produces, and then influence electric connection between electric connector and chip module; In addition, when the chip module group is located on the electric connector when deflection takes place, the clamping part that can cause conducting terminal is the tin ball of clamping chip module normally, and then influences the electric connection of electric connector and chip module, and when the moving chip module, have damage conducting terminal may.
For overcoming above-mentioned defective, necessaryly provide a kind of improved electric connector.
[utility model content]
The purpose of this utility model is to provide a kind of conducting terminal that can prevent to damage, and can realize and chip module between the electric connector of good electricity connection function.
The purpose of this utility model is achieved through the following technical solutions: a kind of electric connector, be used to electrically connect the chip module and the circuit board that are provided with the tin ball, and it comprises insulating body and is housed in plurality of conductive terminals in the insulating body.Insulating body has upper surface, the lower surface that is oppositely arranged and runs through upper surface and the plurality of terminals accepting groove of lower surface setting.Conducting terminal comprises main part, upwards bends elastic arm that extends and the weld part that is bent extension by main part downwards by main part.The upper surface of insulating body is recessed to form first groove that is communicated with terminal containing slot one side downwards.The elastic arm of first groove and conducting terminal encloses first receiving space that forms the tin ball of accommodating chip module.The terminal bifurcated of the elastic arm of conducting terminal is provided with two contact sites that contact with the tin ball of chip module.
The utility model further defines, and described conducting terminal also comprises two holding parts that extended setting by the main part two ends straight up, and described elastic arm is to be extended by main body section position between two holding parts to be provided with.
The utility model further defines, the terminal containing slot of described insulating body comprises holding tank and is positioned at the relative both sides of holding tank and two holding slots that are communicated with holding tank one side, described holding tank is used to accommodate the elastic arm of conducting terminal, and described holding slot can cooperate with the holding parts of conducting terminal and be used for conducting terminal is retained on insulating body.
The utility model further defines, and described conducting terminal also comprises two bent over arms of being extended setting by two holding parts near a lateral buckling of elastic arm.
The utility model further defines, and the bent over arms of described conducting terminal is towards away from the setting of elastic arm direction horizontal-extending by a side of holding parts.
The utility model further defines, and the bent over arms of described conducting terminal and elastic arm lay respectively at the relative both sides of main part.
The utility model further defines, and described electric connector also comprises some mechanically retained tin balls below insulating body.
The utility model further defines, and the lower surface of described insulating body upwards is recessed to form second groove that is positioned at first groove below, and the weld part of described second groove and conducting terminal is formed with second receiving space of accommodating the tin ball.
The utility model further defines, and first groove of described insulating body and second groove are positioned at the same side of terminal containing slot.
The utility model further defines, and the holding tank of the terminal containing slot of described insulating body has first guiding face of arcuation, and described holding slot has second guiding face of inclination.
Compared with prior art, elastic arm and first groove of insulating body first receiving space that the form tin ball of accommodating chip module of electric connector of the present utility model by conducting terminal, can prevent that chip module from damaging conducting terminal because of normotopia degree problem, and pass through the tin ball of two contact site clamping chip modules of the terminal bifurcated setting of elastic arm, make between the tin ball of conducting terminal and chip module and have two contact points, can guarantee to have well between conducting terminal and chip module and electrically contact, and then guarantee well to electrically connect between electric connector and chip module.
[description of drawings]
Fig. 1 is the electric connector of the utility model first execution mode and the three-dimensional combination figure of chip module.
Fig. 2 is the three-dimensional combination figure of the electric connector of the utility model first execution mode.
Fig. 3 is the three-dimensional exploded view of electric connector shown in Figure 2.
Fig. 4 is the stereogram of the insulating body of electric connector shown in Figure 2.
Fig. 5 is the stereogram at another visual angle of the insulating body of electric connector shown in Figure 2.
Fig. 6 is the cutaway view that the electric connector of the utility model first execution mode electrically connects chip module and circuit board.
Fig. 7 is the stereogram of conducting terminal of the electric connector of the utility model second execution mode.
[embodiment]
See also Fig. 1 to shown in Figure 7, wherein Fig. 1 to Fig. 6 is first execution mode of the present utility model, and the 7th figure is second execution mode of the present utility model.The electric connector 100 of first execution mode, be used to electrically connect the chip module 4 and circuit board 5 which is provided with tin ball 40, it comprises insulating body 1, some groups of conducting terminal 2 and the some mechanically retained tin balls 3 below insulating body 1 that are located in the insulating body 1.
Please consult Fig. 2 to shown in Figure 6 by emphasis, insulating body 1 is made by insulating material and roughly rectangular platy structure, and it has upper surface 10, the lower surface 11 that is oppositely arranged and runs through upper surface 10 and the plurality of terminals accepting groove 12 of lower surface 11 settings.Terminal containing slot 12 is used to accommodate conducting terminal 2, the holding slot 121 that it comprises a holding tank 120 and is positioned at holding tank 120 relative both sides and is communicated with holding tank 120 1 sides.Roughly semicircular in shape setting of holding tank 120 has arcuation first guiding face 122.The roughly rectangular setting of holding slot 121, it has second guiding face 123 of inclination.The upper surface 10 of insulating body 1 is recessed to form first groove 13 relative with the holding tank 120 of terminal containing slot 12 downwards.The first roughly semicircular in shape setting of groove 13, it has the continuing surface 130 of tin ball 40 bottoms that are used to accept chip module 4.The lower surface 11 of insulating body 1 upwards is recessed to form second groove 14 that is positioned under first groove 13.The 14 semicircular in shape settings of second groove, it has the bearing surface 140 on butt tin ball 3 tops.Described first groove 13 and second groove 14 are positioned at the same side of terminal containing slot 12.Terminal containing slot 12, first groove 13 and second groove 14 constitute accepting hole 17.
Please consult Fig. 2, Fig. 3 and shown in Figure 6 by emphasis, conducting terminal 2 can insert in the terminal containing slot 12 under the guiding of first guiding face 122 of the terminal containing slot 12 of insulating body 1 and second guiding face 123, and it comprises plate-like body portion 20.Both sides, main part 20 top are extended two holding parts 21 in the holding slot 121 that is provided with the terminal containing slot 12 that is housed in insulating body 1 straight up.Holding parts 21 can with the corresponding wall interference engagement of the holding slot 121 of the terminal containing slot 12 of insulating body 1, be used for conducting terminal 2 is retained on insulating body 1.Main part 20 top middle portion upwards bending are extended the elastic arm 22 that is provided with between two holding parts 21.Described elastic arm 22 is housed in the holding tank 120 of terminal containing slot 12 of insulating body 1, and 13 of first grooves of itself and insulating body 1 are formed with first receiving space 15 of the tin ball 40 that is used to accommodate chip module 4.
During assembling, at first conducting terminal 2 group under the guiding of first guiding face 122 of the terminal containing slot 12 of insulating body 1 and second guiding face 123 is gone in the insulating body 1.At this moment, the holding parts 21 of conducting terminal 2 is housed in the holding slot 121 of terminal containing slot 12 of insulating body 1.Elastic arm 22 is housed in the holding tank 120 of terminal containing slot 12 of insulating body 1.Then the weld part 24 by conducting terminal 2 with the cooperating of second groove 14 of insulating body 1 tin ball 3 is retained on the insulating body 1.At this moment, tin ball 3 is housed in second receiving space 16 of weld part 24 and 14 formation of second groove.Electric connector 100 can be welded on conducting terminal 2 on the circuit board 5 by tin ball 3, realizes electrically conducting of 5 of electric connector 100 and circuit boards.
After assembling, chip module can be located on the electric connector 100 for 4 groups.At this moment, in first receiving space 15 that the elastic arm 22 that the tin ball 40 of chip module 4 is housed in conducting terminal 2 and first groove 13 of insulating body 1 form, and contact with two contact sites 23 of conducting terminal 2.At this moment, promptly realized electrically conducting of 100 of chip module 4 and electric connectors.
Figure 7 shows that the conducting terminal 2 of second execution mode of the present utility model ', its assembling mode is identical with first execution mode, and the first execution mode difference is: conducting terminal 2 ' two contact sites 23 ' between opening 231 ' from contact site 23 ' the bottom along elastic arm 22 ' overbending direction extend to elastic arm 22 ' with main part 20 ' the junction.Two holding parts 21 ' the inboard each towards away from elastic arm 22 ' direction bending back along continuous straight runs extend be provided with a bent over arms 25 ', can be clamped in the relative both sides of the tin ball 40 of chip module 4, make conducting terminal 2 ' have four contact points with the tin ball 40 of chip module 4, realize conducting terminal 2 ' with chip module 4 between excellent electrical property contact.Described bent over arms 25 ' after conducting terminal 2 ' group is located in the terminal containing slot 12 of insulating body 1, be arranged in first groove 13.Described bent over arms 25 ' with elastic arm 22 ', weld part 24 ' lay respectively at main part 20 ' relative both sides.Described bent over arms 25 ' have arcuation second clamping face 250 '.
The utility model electric connector 100 cooperates the tin ball 40 with chip module 4 to be retained in first receiving space 15 by the elastic arm 22 of conducting terminal 2 with the corresponding wall of first groove 13 of insulating body 1, the tin ball 40 that can prevent chip module 4 damages conducting terminal 2 because of normotopia degree problem, and the tin ball 40 of two contact sites, the 23 clamping chip modules 4 by conducting terminal 2, make 40 in the tin ball of conducting terminal 2 and chip module 4 have two contact points, and then make conducting terminal 2 and 4 of chip modules have more stable electric connection; And the shape weld part 24 that colludes by conducting terminal 2 cooperates tin ball 3 mechanically retained in second receiving space 16 with the corresponding wall of second groove 14 of insulating body 1, need not in advance tin ball 3 to be welded on the conducting terminal 2, can simplify the operation course, save processing cost.In addition, electric connector 100 by conducting terminal 2 ' two bent over arms 25 ' with the tin ball 40 of two contact sites, 23 ' clamping chip module 4, can make conducting terminal 2 ' and 40 in the tin ball of chip module 4 have four contact points, make conducting terminal 2 ' have more stable electrical the contact, and then guarantee that electric connector 100 and 4 of chip modules have good electric connection with 40 in the tin ball of chip module 4.
The above only is a kind of execution mode of the present utility model, it or not whole or unique execution mode, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.
Claims (10)
1. electric connector, be used to electrically connect the chip module and the circuit board that are provided with the tin ball, it comprises insulating body and is housed in plurality of conductive terminals in the insulating body, insulating body has the upper surface that is oppositely arranged, lower surface and run through upper surface and plurality of terminals accepting groove that lower surface is provided with, conducting terminal comprises main part, upwards bend elastic arm that extends and the weld part that bends extension by main part downwards by main part, it is characterized in that: the upper surface of described insulating body is recessed to form first groove that is communicated with terminal containing slot one side downwards, the elastic arm of described first groove and conducting terminal encloses first receiving space that forms the tin ball of accommodating chip module, and the terminal bifurcated of the elastic arm of described conducting terminal is provided with two contact sites that contact with the tin ball of chip module.
2. electric connector as claimed in claim 1 is characterized in that: described conducting terminal also comprises two holding parts that extended setting by the main part two ends straight up, and described elastic arm is to be extended by main body section position between two holding parts to be provided with.
3. electric connector as claimed in claim 2, it is characterized in that: the terminal containing slot of described insulating body comprises holding tank and is positioned at the relative both sides of holding tank and two holding slots that are communicated with holding tank one side, described holding tank is used to accommodate the elastic arm of conducting terminal, and described holding slot can cooperate with the holding parts of conducting terminal and be used for conducting terminal is retained on insulating body.
4. electric connector as claimed in claim 3 is characterized in that: described conducting terminal also comprises two bent over arms of being extended setting by two holding parts near a lateral buckling of elastic arm.
5. electric connector as claimed in claim 4 is characterized in that: the bent over arms of described conducting terminal is towards away from the setting of elastic arm direction horizontal-extending by a side of holding parts.
6. electric connector as claimed in claim 5 is characterized in that: the bent over arms of described conducting terminal and elastic arm lay respectively at the relative both sides of main part.
7. as claim 3 or 6 described electric connectors, it is characterized in that: described electric connector also comprises some mechanically retained tin balls below insulating body.
8. electric connector as claimed in claim 7, it is characterized in that: the lower surface of described insulating body upwards is recessed to form second groove that is positioned at first groove below, and the weld part of described second groove and conducting terminal is formed with second receiving space of accommodating the tin ball.
9. electric connector as claimed in claim 8 is characterized in that: first groove of described insulating body and second groove are positioned at the same side of terminal containing slot.
10. electric connector as claimed in claim 3 is characterized in that: the holding tank of the terminal containing slot of described insulating body has first guiding face of arcuation, and described holding slot has second guiding face of inclination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206171896U CN201927729U (en) | 2010-11-22 | 2010-11-22 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206171896U CN201927729U (en) | 2010-11-22 | 2010-11-22 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201927729U true CN201927729U (en) | 2011-08-10 |
Family
ID=44431565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206171896U Expired - Fee Related CN201927729U (en) | 2010-11-22 | 2010-11-22 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201927729U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149177A (en) * | 2018-08-08 | 2019-01-04 | 富顶精密组件（深圳）有限公司 | Electric connector and its manufacturing method |
| CN114336196A (en) * | 2022-01-07 | 2022-04-12 | 华域汽车电动系统有限公司 | Controller internal conductive switching device |
-
2010
- 2010-11-22 CN CN2010206171896U patent/CN201927729U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109149177A (en) * | 2018-08-08 | 2019-01-04 | 富顶精密组件（深圳）有限公司 | Electric connector and its manufacturing method |
| CN109149177B (en) * | 2018-08-08 | 2022-09-20 | 富顶精密组件（深圳）有限公司 | Method for manufacturing electric connector |
| CN114336196A (en) * | 2022-01-07 | 2022-04-12 | 华域汽车电动系统有限公司 | Controller internal conductive switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20191122 |