CN200953411Y - SIM card connector with fool-proof structure - Google Patents

Abstract

The utility model discloses a SIM card connector with a fool-proof structure, comprising an insulating seat, a plurality of signal terminals and a switch terminal contained therein. The switch terminal comprises a fixed terminal and a movable terminal, wherein the fixed terminal comprises a first holding portion and a first welding portion connected to the first holding portion, and the movable terminal comprises a second holding portion, an elastic arm and a second welding portion respectively extending from the second holding portion, and a crimping portion connected to the end of the elastic arm, wherein the elastic arm has an abutting portion located at the top, the abutting portion extending upward from the insulating seat, and the crimping portion abuts upward against the fixed terminal. When the SIM card is correctly inserted, the SIM card presses downward against the abutting portion of the movable terminal to drive the crimping portion downward to disengage from the fixed terminal; when the SIM card is inserted in reverse, the SIM card does not contact the abutting portion of the movable terminal, thereby judging whether the SIM card is inserted incorrectly.

Description

SIM card connector with fool-proof structure

Technical field

The utility model relates to a SIM card connector, in particular to a SIM card connector with a foolproof structure.

Background technique

The non-territorial nature of communication makes the distance between modern people closer and closer, making life and communication more convenient. Among them, mobile phones are the most portable devices, and SIM (Subscriber Identity Module) card connectors are widely used in many electronic devices such as mobile phones.

A SIM card usually includes a terminal array for connecting with an external card reading system. The SIM card connector usually includes a card slot and electrical contact terminals arranged in the card slot. The SIM card can be pulled out from the card slot or inserted into the card slot. When the SIM card is inserted into the SIM card connector, the terminals of the SIM card connector abut against the terminal array of the SIM card, thereby realizing electrical conduction between the two.

In order to prevent the SIM card from being inserted into the SIM card connector by mistake, the conventional SIM card connector is usually provided with a fool-proof structure. Please refer to the thirteenth figure, a SIM card connector 300 with a fool-proof structure includes an insulating seat body and a fool-proof oblique block formed at the junction of the side wall of the insulating seat body and its front end wall, when the external SIM card 200 is correct After being inserted into the insulating base body, the missing foot on one side of the SIM card 200 can just abut against the anti-fooling inclined block on the insulating seat body, thereby forming a fool-proof effect.

But above-mentioned SIM card connector in the past, if SIM card is inserted reversely, though can judge that SIM card is in misinserted state, be easy to make a corner of SIM card 200 collide with anti-fooling oblique piece, thereby make SIM card 200 were damaged. And because it is judged manually, it is inevitable that inaccurate judgments will occur.

Utility model content

The purpose of the utility model is to provide a SIM card connector with a fool-proof structure in view of the above disadvantages, which can prevent the SIM card from being damaged due to collision and can accurately determine whether the SIM card is inserted by mistake.

In order to achieve the above object, the utility model provides a SIM card connector, comprising: an insulating base body, which is provided with a plurality of terminal grooves, a first accommodation channel and a second accommodation channel; a plurality of signal terminals for receiving In the terminal groove; the switch terminal includes a fixed terminal and a movable terminal respectively accommodated in the first accommodating channel and the second accommodating channel, wherein the fixed terminal includes a first holding part and a first holding part connected to the first holding part The first welding part, the movable terminal includes a second holding part, elastic arms protruding from the second holding part, the second welding part and a crimping part connected to the end of the elastic arm, the elastic arm has a The abutting part, the abutting part protrudes upwards from the insulating seat body, and the crimping part abuts upwards on the fixed terminal; when the SIM card is correctly inserted, the SIM card presses down on the abutting part of the movable terminal to drive The crimping portion is detached from the fixed terminal downward; when the SIM card is reversely inserted, the SIM card does not contact with the abutting portion of the movable terminal.

As mentioned above, the utility model has a SIM card connector with a fool-proof structure through the electrical connection between the added switch terminal and the external circuit board to generate an electrical signal to determine whether the SIM card is inserted by mistake, thereby avoiding the SIM card being damaged due to collision. Suffer damage, and can accurately judge whether the SIM card is inserted by mistake, so as to achieve the effect of foolproof.

Description of drawings

In the accompanying drawings of the manual:

Fig. 1 is the three-dimensional exploded view of the SIM card connector with fool-proof structure of the present invention;

Fig. 2 is the three-dimensional view of the insulation seat body of the SIM card connector with fool-proof structure of the present invention;

Fig. 3 is a partially enlarged view of the accommodating channel of the SIM card connector with a fool-proof structure of the present invention;

Fig. 4 is a sectional view along IV-IV of Fig. 1;

Fig. 5 is the three-dimensional structure diagram of the fixed terminal of the SIM card connector with fool-proof structure of the present invention;

Fig. 6 is a three-dimensional structure diagram of the movable terminal of the SIM card connector with fool-proof structure of the present invention;

Fig. 7 is a three-dimensional structure diagram when the signal terminal and the switch terminal of the SIM card connector with fool-proof structure of the present invention are assembled on the insulating base;

Fig. 8 is a partially enlarged view of the switch terminal of the SIM card connector with fool-proof structure assembled in the switch terminal accommodation channel of the present invention;

Fig. 9 is a sectional view along IX-IX of Fig. 7;

Fig. 10 is a three-dimensional assembly diagram of the SIM card connector with fool-proof structure of the present invention;

Fig. 11 is a schematic diagram of the assembly of the SIM card connector with the fool-proof structure of the present invention and the external SIM card;

Fig. 12 is a sectional view along XII-XII of Fig. 11;

Fig. 13 is a schematic diagram of the fool-proof structure of the conventional SIM card connector.

The reference signs of each component in the figure are explained as follows:

SIM Card Connector with Foolproof Structure 100

Insulation seat body 10 substrate 11

Terminal slot 12 side wall 13

Retaining wall 14 front face 15

Accommodating channel 16 The first accommodating channel 17

The second storage channel 18 cover plate 20

Side panel 21 Signal terminal 30

Contact part 31 Switch terminal 40

Fixed terminal 50 The first holding part 51

Horizontal part 52 Vertical part 53

Crimp block 54 The first welding part 55

Socket part 56 burr 57

Movable terminal 60 Front end 61

Rear end 62 Side end 63

Connecting arm 64 Arc arm 65

Contact part 66 Crimp part 67

Bending part 68 Second welding part 69

Containment Space 120 First Horizontal Slot 171

Vertical slot 172 Notch 173

Insertion slot 174 Second horizontal slot 181

Connecting groove 182 Engaging groove 183

SIM card 200 first bending part 681

Vertical wall 682 Second bending part 683

Existing SIM card connector 300

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, specific embodiments are exemplified below and described in detail with reference to the drawings.

Please refer to Fig. 1, the SIM card connector 100 of the present invention has fool-proof structure and comprises an insulating seat body 10, and a cover plate 20 is buckled on the insulating seat body 10, and a plurality of signal terminals 30 and a pair of insulating seat body 10 are accommodated inside Used on switch terminals 40 for foolproofing. Wherein, the switch terminal 40 includes a fixed terminal 50 and a movable terminal 60 matched with the fixed terminal 50 .

Please refer to FIG. 2 , the insulating base body 10 includes a base plate 11, and the base plate 11 is provided with a plurality of terminal grooves 12 arranged in a matrix at the front and rear ends. The two side edges of the base plate 11 protrude upwards from the longitudinally extending side walls 13 , and the front edge of the base plate 11 extends upwards to form a retaining wall 14 slightly higher than the side walls 13 . The retaining wall 14 and the base plate 11 have a front surface 15 , and a switch terminal accommodating channel 16 is opened on one side of the front surface 15 .

Referring to FIG. 3 , FIG. 4 and FIG. 9 , the switch terminal accommodating channel 16 includes a first accommodating channel 17 and a second accommodating channel 18 located below the first accommodating channel 17 . The first accommodating channel 17 includes a first horizontal slot 171 and a vertical slot 172 extending vertically downward from one end of the first horizontal slot 171 . Wherein, the first horizontal groove 171 runs through the retaining wall 14 backwards, and its bottom wall is formed on the upper surface of the substrate 11 . The vertical slot 172 penetrates the retaining wall 14 downwards and extends horizontally outwards through the retaining wall 14 at the bottom to form a notch 173 , and the vertical slot 172 is recessed rearward at approximately the middle to form an insertion slot 174 . The second accommodating channel 18 includes a second horizontal groove 181 below the first horizontal groove 171 and parallel to the first horizontal groove. The second horizontal groove 181 extends backward to the inside of the substrate 11. The groove 181 extends upwards at approximately the middle so as to communicate with the first horizontal groove 171 to form a communication groove 182 at the approximate middle. It communicates with the outside world above the substrate 11 . The front end of the second horizontal groove 181 extends horizontally outward on the side opposite to the vertical groove 172, and then extends vertically downward through the base plate 11 at the end, and then extends inward at the bottom end, thereby forming a substantially horizontal U-shape. The engaging groove 183.

Please refer to FIG. 5 , the fixed terminal 50 has a first holding portion 51 , and the first holding portion 51 includes a horizontal portion 52 extending transversely in the shape of a rectangular plate and a vertical portion 53 protruding vertically downward from the horizontal portion 52 . A crimping block 54 protrudes slightly downward from the middle of the rear side of the horizontal portion 52 . The vertical part 53 is bent horizontally outward at the bottom end to form a first welding part 55, and the vertical part 53 extends in the middle of the rear side to form a plugging part 56, and the plugging part 56 protrudes from the upper and lower sides respectively. Thorn 57.

Please refer to FIG. 6 , the movable terminal 60 has a substantially longitudinally extending rectangular ring-shaped second holding portion, the second holding portion includes a front end 61 , a rear end 62 and side ends 63 on both sides. The middle part of the front end of the rear end part 62 is connected with an elastic arm located above the second holding part. An arc-shaped arm 65 is formed by bending and extending downward. The apex of the arc-shaped arm 65 forms an abutting portion 66 , and the end of the arc-shaped arm 65 extends horizontally to form a crimping portion 67 . In addition, one side end portion 63 extends horizontally outward at the front end and then bends downward to form a bent portion 68. The bent portion 68 includes a first bent portion 681, extending from the end of the first bent portion 681 to The vertical wall 682 protruding from the bottom and the second bent portion 683 bent inward from the bottom end of the vertical wall 682 , the end of the second bent portion 683 extends horizontally inward to form the second welding portion 69 .

Please refer to FIG. 7 to FIG. 10 , the assembly process of the SIM card connector 100 with a fool-proof structure of the present invention is described in detail as follows:

As shown in FIG. 7 , the signal terminals 30 are accommodated in the terminal slots 12 opened on the insulating base 10 . The contact portion 31 of the signal terminal 30 protrudes from the top wall of the substrate 11 of the insulating base 10 , so that when the external SIM card 200 is inserted, it is electrically connected to the SIM card 200 .

Please refer to FIG. 8 and FIG. 9 , the fixed terminal 50 and the movable terminal 60 of the switch terminal 40 are respectively accommodated in the first accommodating channel 17 and the second accommodating channel 18 of the insulating base 10 . Wherein, the horizontal portion 52 of the fixed terminal 50 and the crimping block 54 are respectively accommodated in the front and rear sides of the first horizontal groove 171 , and the crimping block 54 extends downward into the communicating groove 182 . The vertical part 53 is accommodated in the vertical groove 172, the insertion part 56 is buckled into the insertion groove 174 through the protruding thorns 57 (as shown in Figure 4), and the first welding part 55 is exposed on the insulating seat at the gap 173. The bottom surface of the substrate 11 of 10 is soldered to an external circuit board. The second holding portion of the movable terminal 60 is engaged with the edge of the second horizontal groove 181 of the insulating base 10, and the bent portion 68 and the second welding portion 69 are accommodated in the engaging groove 183, wherein the second welding portion 69 is exposed. The bottom surface of the substrate 11 of the insulating base 10 is welded with an external circuit board.

The connecting arm 64 on the rear end portion 62 of the movable terminal 60 is located at the communicating groove 182 . The abutting portion 66 at the apex of the arc arm 65 protrudes from the communication slot 182 and is substantially on the same level as the contact portion 31 of the signal terminal 30 . The crimping portion 67 of the movable terminal 60 is located at the communication groove 182 and abuts upward against the bottom of the crimping block 54 of the fixed terminal 50 . For the present utility model, the crimping block 54 is not an essential component, and the crimping portion 67 of the movable terminal 60 can also abut upward against the bottom of the horizontal portion 52 of the first holding portion 51 of the fixed terminal 50, as long as the movable terminal 60 It only needs to achieve the effect of contacting with the fixed terminal 50 .

Please refer to FIG. 10 , the cover plate 20 has side plates 21 protruding downward from two sides, and the side plates 21 are engaged with the outer sides of the side walls 13 of the insulating base 10 . A receiving space 120 is formed between the cover plate 20 and the insulating base 10 for receiving the external SIM card 200 .

Please continue to refer to Fig. 8 and Fig. 9, before the SIM card connector 100 with a fool-proof structure of the present invention is used, the crimping block 54 of the fixed terminal 50 is pressed against the crimping part 67 of the movable terminal 60, and the fixed terminal Both the first welding portion 55 of 50 and the second welding portion 67 of the movable terminal 60 are welded to the external circuit board, so that the fixed terminal 50, the movable terminal 60 and the external circuit board together form an electrical circuit.

Please refer to FIG. 11 and FIG. 12 , when the SIM card connector 100 with a fool-proof structure of the present invention is in use, when the external SIM card 200 is correctly inserted into the receiving space 120 formed after the insulating base 10 and the cover plate 20 are fastened together , the abutting portion 66 at the apex of the arc arm 65 of the movable terminal 60 contacts the SIM card 200, and the SIM card 200 presses down the abutting portion 66, thereby driving the crimping portion 67 of the movable terminal 60 downward to contact the SIM card 200. The crimping block 54 of the fixed terminal 50 is disengaged, thereby generating an electrical signal to determine that the SIM card 200 has been inserted correctly. When the SIM card 200 is inserted in reverse, since the notch of the SIM card 200 cannot be pressed against the contact portion 66 of the movable terminal 60, the crimping portion 67 of the movable terminal 60 and the crimping block 54 of the fixed terminal 50 cannot be pressed together. If the SIM card 200 is separated from each other, the electrical signal cannot be generated, so it can be judged that the SIM card 200 is in the incorrectly inserted state.

In summary, the SIM card connector 100 with a fool-proof structure of the present invention judges whether the SIM card is inserted by mistake by adding a pair of switch terminals 40 to electrically connect the external circuit board to generate an electrical signal, thereby avoiding SIM card failure. Suffer damage due to collision, and can accurately judge whether the SIM card is inserted by mistake, so as to achieve the effect of foolproof.

Claims (12)

1. sim card connector with error-proof structure, comprise: insulating base frame and some signal terminals, offer the plurality of terminals groove on this insulating base frame, the first ccontaining channel and the second ccontaining channel, described signal terminal correspondence is housed in the described terminal groove, it is characterized in that: this sim card connector also comprises switch terminal, this insulating base frame offers the first ccontaining channel and the second ccontaining channel, described switch terminal comprises fixed terminal and the movable terminal that is housed in first holding channel and second holding channel respectively, wherein this fixed terminal comprises first holding parts and is connected first weld part of first holding parts, this movable terminal comprises second holding parts, the elastic arm that stretches out by second holding parts and second weld part and the pressure contact portion that is connected this elastic arm end respectively, this elastic arm has the abutting part that is positioned at the top, this abutting part protrudes upward insulating base frame, this pressure contact portion upwards is connected to described fixed terminal, when correct insertion SIM card, SIM card compresses the abutting part of movable terminal downwards and drives pressure contact portion and breaks away from fixed terminal downwards, when reverse insertion SIM card, SIM card does not contact with the abutting part of movable terminal.

2. the sim card connector with error-proof structure as claimed in claim 1 is characterized in that: described fixed terminal also comprises the crimping piece that is stretched out by first holding parts, and described pressure contact portion upwards is connected to described crimping piece.

3. the sim card connector with error-proof structure as claimed in claim 1 is characterized in that: described sim card connector also comprises a cover plate, and described cover plate is fastened on the insulating base frame and forms receiving space and insert for outside SIM card.

4. the sim card connector with error-proof structure as claimed in claim 1, it is characterized in that: described insulating base frame has a substrate, the substrate front-end edge extends upward the formation barricade, and this barricade and substrate have front end face, and front end face offers described first holding channel and second holding channel.

5. the sim card connector with error-proof structure as claimed in claim 4 is characterized in that: described substrate both side edges protrudes upward the sidewall a little less than the longitudinal extension of barricade respectively.

6. the sim card connector with error-proof structure as claimed in claim 4, it is characterized in that: described first holding channel comprises first level trough, and the vertical slots that extends to form straight down by this first level trough, one end, wherein, first level trough extends back, and vertical slots runs through substrate downwards and stretches out and form breach in the bottom level.

7. the sim card connector with error-proof structure as claimed in claim 6, it is characterized in that: first holding parts of described fixed terminal comprises that one is housed in the horizontal part of first level trough and the vertical portion that is housed in vertical slots of being stretched out straight down by horizontal part, this horizontal part protrudes out the described crimping piece that is housed in first level trough downwards at rear side, the vertical portion outwards is bent to form described first weld part in the bottom level, and this first weld part exposes substrate bottom surface at insulating base frame in described indentation, there.

8. the sim card connector with error-proof structure as claimed in claim 7, it is characterized in that: described vertical slots is recessed to form inserting groove backward in approximate mid-section, described vertical portion also extends to form a Plug Division in the middle part of rear side, this Plug Division protrudes out protruding thorn respectively in both sides up and down, this Plug Division by protruding thorn buckle in described inserting groove.

9. the sim card connector with error-proof structure as claimed in claim 6, it is characterized in that: described second holding channel comprises one below first level trough and second level trough parallel with described first level trough, this second level trough extands rearward to substrate inside, thereby this second level trough extends upward in approximate mid-section and is communicated to described first level trough approximate mid-section formation connectivity slot, and this connectivity slot extands rearward to a little place, second level trough the place ahead and is communicated with the substrate top is extraneous.

10. the sim card connector with error-proof structure as claimed in claim 9, it is characterized in that: described movable terminal has described second holding parts that is fastened on the second level trough edge that roughly is the rectangular ring of longitudinal extension, this second holding parts comprises leading section, rearward end and the side end that is positioned at both sides, the rearward end front center is connected with the described elastic arm that is positioned at second holding parts top, this elastic arm comprises the linking arm that is positioned at the connectivity slot place that is extended to form obliquely by the rearward end front center, and the arched arm that forms by the linking arm downward again bending extension of the terminal bending extension that makes progress, this place, elastic arm summit forms the described abutting part that protrudes upward connectivity slot, the terminal also horizontal-extending of this arched arm forms described pressure contact portion, and this pressure contact portion is positioned at the connectivity slot place and upwards is connected to the crimping piece bottom of fixed terminal.

11. the sim card connector with error-proof structure as claimed in claim 10, it is characterized in that: the described second level trough front end also extends through substrate more endways straight down after vertical slots one side level stretches out relatively, then extend to the inside in the bottom again, thereby form a slot that roughly is the U font that crouches.

12. the sim card connector with error-proof structure as claimed in claim 11, it is characterized in that: described second holding parts side end wherein is bent to form a kink downwards after front end place level stretches out, this kink comprises first kink, vertical wall that stretches out downwards by the first kink end and second kink that bends inwards and extend by vertical wall bottom, the terminal inwardly horizontal-extending of described second kink forms described second weld part, this kink and second weld part are housed in the slot, and wherein second weld part exposes the substrate bottom surface at insulating base frame.

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