CN201853839U

CN201853839U - Connector terminal and card connector thereof

Info

Publication number: CN201853839U
Application number: CN2010201518231U
Authority: CN
Inventors: 黄三山; 周芝福
Original assignee: Kunshan Jiahua Electronics Co Ltd; Bellwether Electronic Corp
Current assignee: Kunshan Jiahua Electronics Co Ltd; Bellwether Electronic Corp
Priority date: 2010-03-25
Filing date: 2010-03-25
Publication date: 2011-06-01
Anticipated expiration: 2020-03-25

Abstract

The utility model provides a connector terminal, which comprises a fixing portion, a welding portion, an elastic arm and a contact portion, The welding portion extends from one end of the fixing portion, the elastic arm extends from the other end of the fixing portion, the contact portion is connected to the tail end of the elastic arm, curve arc surfaces are formed on the elastic arm and the contact portion, a plurality of concave portions are arranged on the arc surface of the contact portion, a plurality of special grooves are formed by extending the concave portions backwards along a card insertion direction on a contact surface, and the grooves realize bilateral symmetry of contact positions and form uneven contact surfaces at the contact positions. Accordingly, the terminal generates larger friction when contacting with a butt-joint conducting sheet, and can scrape off oxides, blocking layers or pollutants, which hinder conductivity, on the surface of the conducting sheet so as to increase conductivity with the conducting sheet.

Description

Bonder terminal and card connector thereof

Technical field

The utility model relates to a kind of bonder terminal, and particularly a kind of bonder terminal that has the scraping effect in termination contact portion also relates to a kind of card connector with this terminal simultaneously.

Background technology

General electronic installation, for example various tables are gone up and are reached notebook computer memory modules (Memory Modules), network communication card module, multimedia video module and satellite positioning module (GPS Modules), central processing unit, compiling decoder etc., more than the transmission of this type of high speed signal, must be electrically connected with circuit board by at least one or a plurality of card connector; Therefore, just seem particularly important as the terminal structure that on card connector, directly is used for contacting with circuit board.

If when the terminal of known card connector is made with the bending forming mode, because of the termination contact district does not have burr, make terminal not have scraping (wiping) effect when contacting with the conducting strip of electronic installation, conductivity is relatively poor.In order to improve foregoing problems, as Taiwan M348346 patent, this solution just is provided, it is to establish a scraping district on the contact site surface of terminal, by the conducting strip on this scraping district scraping electronic installation, hinder oxide, barrier layer or the pollutant of conductivity to remove the conducting strip surface, increase the conductivity between electronic installation and the terminal.

Yet, in the specific embodiment of the disclosed terminal of this patent, scraping district can probably be divided into two classes, and a class is that the length direction along contact site forward extends, for example shown in Figure 9, the scraping district 91 of terminal 9 is the raised lines that extend and protrude contact site 92 surfaces along contact site 92 length directions; Another kind ofly be perpendicular to the length direction of contact site and horizontally set is for example shown in Figure 10, terminal 9 ' scraping district 91 ' be a plurality of transverse concave grooves of arranging perpendicular to contact site 92 ' length direction at intervals.Though wherein there is the scraping effect in the scraping district 91 of forward extending, but still it is remarkable inadequately, though and the significant scraping effect in the scraping district 91 of horizontally set ' have, but scraping district 91 ' transverse concave groove vertical with the direction of insertion of electronic installation, block the edge clipping of electronic installation easily, hinder electronic installation to move, and because the edge clipping of electronic installation is stuck in the groove, make that terminal continues to be under pressure, cause the terminal distortion easily.

The utility model content

The scraping structure that adds irregular surface is to improve transfer rate.

For realizing above-mentioned purpose of the present utility model, can be realized by following technical scheme: the utility model provides a kind of bonder terminal, it comprises the elastic arm that weld part that a fixed part, extends by an end of this fixed part, is extended by the other end of this fixed part, and a contact site that is connected in this elastic arm end, this elastic arm and contact site place form the cambered surface of bending; On the cambered surface of this contact site, be provided with the scraping structure pattern of irregular surface, produce bigger friction when making terminal and docking conducting strip and touch.

Bonder terminal described in the utility model, the scraping structure of wherein said irregular surface is a plurality of recesses, described a plurality of recess extends to form the groove of special tectonic backward in contact-making surface upper edge plug-in card direction, the cloth of described groove is if the contact site has symmetrical effect, and make the contact site form irregular contact surface, produce bigger friction when making terminal and docking conducting strip and touch, can hinder oxide, barrier layer or the pollutant of conductivity to strike off on the conducting strip surface, so that increase the conductivity between conducting strip and the terminal.

Bonder terminal described in the utility model, the both sides of wherein said groove all can be provided with domatic, breach, can be provided with a corner face in domatic rear end, so that further increase the frictional force on the contact-making surface.

Another purpose of the present utility model is to provide a kind of card connector that is equiped with the scraping structure terminal of irregular surface, utilizes the scraping structure in the termination contact portion to increase the contact effect.

For achieving the above object, the utility model provides a kind of card connector, and it includes an insulating body and a plurality of terminal that is placed in this insulating body at least; Wherein each terminal also includes the elastic arm that weld part that a fixed part, extends by an end of this fixed part, is extended by the other end of this fixed part, and a contact site that is connected in this elastic arm end, and this contact site has a contact-making surface; Wherein also be provided with a groove on this termination contact face, be provided with a breach at least one side of this groove.

Wherein preferred, above-mentioned breach can be recessed sphenoid shape, triangle body shape.

Card connector described in the utility model, wherein said groove can be replaced by the protuberance of reality.

The utility model also provides a kind of electronic card coupler simultaneously, and it comprises an insulation shell, and is located at a plurality of terminals in this insulation shell, and wherein said terminal has adopted terminal recited above.

The utility model utilizes the structure of various groove to make the contact site of terminal form the scraping structure of irregular surface, so that when connecting, produce the better effect that touches, effectively produced the scraping effect good, increased the conductivity between electronic cards and this terminal electronic cards.

Below, in conjunction with specific embodiments and accompanying drawing the utility model is described in further detail.

Description of drawings

Fig. 1 is the outside drawing of the utility model first embodiment;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is the work schematic diagram of the utility model first embodiment;

Fig. 4 is the partial enlarged drawing of Fig. 3;

Fig. 5 is the outside drawing of the utility model second embodiment;

Fig. 6 is the partial enlarged drawing of Fig. 5;

Fig. 7 is the outside drawing of the utility model the 3rd embodiment;

Fig. 8 is the partial enlarged drawing of Fig. 7;

Fig. 9 is the outside drawing of known card bonder terminal;

Figure 10 is the outside drawing of another known card bonder terminal.

The primary clustering symbol description

100 card connectors

1 terminal

11 fixed parts

12 weld parts

13 elastic arms

14 contact sites

141 contact-making surfaces

142 bearing surfaces

143 grooves

144 raised lines

145 is domatic

146 first breach

147 bottom surfaces

148 second breach

149 inclined-planes

8 electronic cards

81 conducting strips

9 known terminals

91 scraping districts

92 contact sites

9 ' known terminal

91 ' scraping district

92 ' contact site

Embodiment

See also Fig. 1, shown in Figure 2, it is the utility model first preferred embodiment, it is the terminal 1 of a card connector 100, this terminal 1 comprises the elastic arm 13 that weld part that a fixed part 11, extends by the end bending of fixed part 11 12, is extended by the other end bending of fixed part 11, and a contact site 14 that is connected in elastic arm 13 ends.This contact site 14 is crooked cambered surface, have one in order to contact the contact-making surface 141 of an electronic installation 8 (consulting shown in Figure 6) in its top area, by being thinned, terminal 1 punching press is formed with a bearing surface 142 on this contact-making surface 141, this bearing surface 142 is towards elastic arm 13 directions, and as interface with contact site 14 be divided into the height two parts, describedly face bearing surface 142 in high end central authorities and be provided with a groove 143 along the plug-in card direction of motion, this groove 143 has the suitable length and the degree of depth, and run through bearing surface 142, therefore make this contact-making surface 141 in the length range of groove 143, form and have two raised lines 144 (though be called raised line 144, but be actually with contact-making surface 141 and form coplane), symmetrical left and right sides two parts also bearing surface 142 have been divided into simultaneously, be equipped with domatic 145 in the both sides of this each raised line 144, form an open recess, described domatic 145 at rear end cutting formation one corner face, produces the wedge angle afterbody, so that further increase the frictional force on the contact-making surface 141.

See also Fig. 3, shown in Figure 4, the structure of this card connector 100 includes insulating body 2 and a plurality of terminal 1 that is installed in the insulating body 2 at least, and these are structures that the utility model is not narrated, and belong to known configuration, will not do narration at this more.When electronic installation 8 when the plant direction is inserted the slot 21 of card connector 100, conducting strip 81 on the electronic installation 8 is with after contact site 14 contacts, can relatively move up to the location with contact site 14, in electronic installation 8 moving process, two raised lines 144 produce friction from bearing surface 142 beginnings and conducting strip 81 surfaces, can hinder oxide, barrier layer or the pollutant of conductivity to strike off on conducting strip 81 surfaces, to increase the conductivity between conducting strip 81 and the terminal 1.

In addition, see also Fig. 5, shown in Figure 6, it is second preferred embodiment of the present utility model, and compared to first embodiment, difference is the contact site 14 of terminal 1, and is then identical with the foregoing description as for other structure and working method.In this example, the centre of terminal 1 contact site 14 top contact-making surfaces 141 is provided with a groove 143 along the plug-in card direction of motion, the length of this groove 143 should design with the distance that contacts of contact-making surface 141 during insertion according to electronic cards, continue to be provided with first breach 146 of a symmetry backward along the terminals side edge at two middle side parts of this groove 143, this first breach 146 is recessed sphenoid shape, so its recessed front and back degree of depth differs, its degree of depth shoals to the back-end gradually from front end, and on the rear end, bottom surface 147 and termination contact face 141 are fused, so groove 143 designs with monosymmetric first breach 146, constituted an out-of-flatness surface on the contact-making surface 141 with terminal 1, can produce good scraping effect with electronic cards 8.

Consult Fig. 7, shown in Figure 8, it is the 3rd preferred embodiment of the present utility model, and compared to first and second embodiment, difference is the contact site 14 of terminal 1, and is then identical with the foregoing description as for other structure and working method.In the present embodiment, the centre of terminal 1 contact site 14 its terminal top contact-making surfaces 141 is provided with the same groove 143 of one and second embodiment along the plug-in card direction of motion, but second breach 148 of a symmetry that continues backward to be provided with along terminal 1 lateral edges at two middle side parts of this groove 143 is the recessed triangle bodily form, the degree of depth unanimity that these second breach, 148 front and back are recessed, its width diminishes to the back-end gradually from front end, and on the rear end side of inclined-plane 149 with terminal is fused.So groove 143 is provided with monosymmetric second breach 148, and contact-making surface 141 upper surfaces of terminal 1 have been constituted an out-of-flatness surface, can produce good scraping effect with electronic cards 8.

In sum, the utility model utilizes the structure of various groove 143 to make the contact site 14 of terminal form the scraping structure of irregular surface on contact-making surface 141, so that when connecting, produce the better effect that touches, effectively produced the scraping effect good, increased the conductivity between electronic cards and this terminal electronic cards.In other embodiments, the shape of groove 143 not only is not restricted in, and can be replaced by the protuberance of reality yet; Bearing surface 142 forms left and right sides two parts of symmetry, also can look the quantity of groove 143 and position and forms dissymmetrical structure.

Be familiar with this technical staff and understand enforcement purpose of the present utility model and effect strictly according to the facts for making; for embodiment and accompanying drawing the utility model is described in detail; not to the utility model any restriction in addition; the utility model also can have other variation execution mode; so all personnel that are familiar with this technology carry out other pattern and implement not breaking away under the utility model spirit, all should still belong in the protection range of the present utility model.

Claims

1. bonder terminal, it comprises the elastic arm that weld part that a fixed part, extends by an end of this fixed part, is extended by the other end of this fixed part, and a contact site that is connected in this elastic arm end, this elastic arm and contact site place form the cambered surface of bending; It is characterized in that: the scraping structure that on the cambered surface of this contact site, is provided with irregular surface.

2. bonder terminal according to claim 1, it is characterized in that, the scraping structure of described irregular surface is a plurality of recesses, and described recess extends to form special groove in contact-making surface upper edge plug-in card direction backward, and described groove causes the contact site to be formed with irregular contact surface.

3. bonder terminal according to claim 2 is characterized in that the both sides of described groove are equipped with domatic, is provided with a corner face in domatic rear end.

4. bonder terminal according to claim 2 is characterized in that the both sides of described groove respectively are provided with breach, and described a plurality of breach are recessed sphenoid shape.

5. bonder terminal according to claim 4 is characterized in that, described breach is recessed triangle body shape.

6. bonder terminal according to claim 2 is characterized in that described groove is replaced by the protuberance of reality.

7. an electronic card coupler comprises an insulation shell, and is located at a plurality of terminals in this insulation shell, and it is characterized in that: described terminal is each the described terminal among the claim 1-6.