CN201812970U - Waterproof structure of slide contact type IC card seat - Google Patents
Waterproof structure of slide contact type IC card seat Download PDFInfo
- Publication number
- CN201812970U CN201812970U CN2010201824735U CN201020182473U CN201812970U CN 201812970 U CN201812970 U CN 201812970U CN 2010201824735 U CN2010201824735 U CN 2010201824735U CN 201020182473 U CN201020182473 U CN 201020182473U CN 201812970 U CN201812970 U CN 201812970U
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- Prior art keywords
- contact
- card
- card seat
- seat
- binding post
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- Expired - Fee Related
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Abstract
The utility model provides a waterproof structure of a slide contact type IC card seat. One pin of a chip of an IC card enables a short circuit process formed between a contact 5 and a contact 6 of the card seat during insertion of the card so as to substitute a mode switch of the card seat, thereby avoiding the phenomenon of card insertion failure caused by failure of the switch due to the corrosion of switch contacts of the card seat caused by water entrance into the card seat. The waterproof structure of the slide contact type IC card seat utilizes the functional contacts of the IC card seat to substitute the switch contacts, so that corrosion and electrochemical reaction are difficult to occur as water is difficult to be kept between the functional contacts which have the distance of more than 2.5mm even through water enters into the IC card seat in short time; as the IC card and the IC card seat are stored separately when not in work, the pins of the IC card are not influenced by water and moistness, and the IC card can work normally as long as the functional contacts exist even through the switch of the IC card seat is damaged.
Description
Technical field
The utility model belongs to the structure of the waterproof of IC-card seat, particularly a kind of waterproof construction of slide-contact-type IC-card seat.
Background technology
IC-card is widely applied in each field at present, and the supporting with it IC-card seat overwhelming majority is a slide-contact-type IC-card seat.Though comparing with the press-down type deck, this deck in the plug-in card process, between IC-card and deck contact, produces friction, to certain influence is arranged useful life.But its price is low, and is simple in structure, and highly versatile still has overwhelming superiority on IC-card seat market.The IC-card seat in use because each contact exposes, non-watertight, non-moistureproof is its fatal weakness.In general under the situation that deck water inlet or moisture are overweight, because of between two switch contacts of deck the distance very little, generally about 0.5mm, be easy to keep moisture, and then the generation corrosion, especially often there is voltage to exist between two switch contacts, the phenomenon that electrochemical corrosion takes place is further strengthened, make switch contact malfunctioning, cause the IC-card seat to be scrapped.
Summary of the invention
The purpose of this utility model is to provide a kind of waterproof construction of slide-contact-type IC-card seat, does not change any structure of IC-card seat, but utilizes the result of use of the characteristics arrival waterproof of IC-card self pin.
For achieving the above object, the technical solution adopted in the utility model provides a kind of waterproof construction of slide-contact-type IC-card seat, this IC-card seat comprise contact position and the order arrangement respectively with the IC-card Pin locations and the order 1 to the 8th contact 8, corresponding first contact, the card reading unit that is electrically connected with 1 to the 8th contact 8, first contact, 1 to the 8th contact 8, first contact is first contact 1, second contact 2, the 3rd contact 3, the 4th contact 4, the 5th contact 5, the 6th contact 6, the 7th contact 7, the 8th contact 8, wherein: described card reading unit includes wiring board 11 that CPU12 is installed and the binding post 13 that is electrically connected with CPU12, binding post 13 is electrically connected with pull-up resistor R1, R2, R3, R4, IC-card seat first contact 1 links to each other with the operating voltage VCC electricity of binding post 13, IC-card seat second contact 2 links to each other with the reset signal RST electricity of binding post 13, IC-card seat the 3rd contact 3 links to each other with the tie point SCL electricity of binding post 13, IC-card seat the 5th contact 5 links to each other with the ground wire GND electricity of binding post 13, IC-card seat the 6th contact 6 links to each other with the tie point Kc electricity of binding post 13, and IC-card seat the 7th contact 7 links to each other with the data input and output SDA electricity of binding post 13.
Effect of the present utility model is the function contact that the waterproof construction of slide-contact-type IC-card seat utilizes the IC-card seat, behind the place of switches contact, even the IC-card seat short time has been advanced water, because the function contact distance is more than 2.5mm, because the big moisture content of distance is not easy to remain between the contact, be difficult to take place corrosion and electrochemical reaction, and IC-card and IC-card seat are deposited not working to separate constantly, the pin of IC-card is not influenced by moisture content and moisture can, thereby, even the switch of IC-card seat damages,, do not influence the IC-card operate as normal as long as the function contact exists.
Description of drawings
Fig. 1 is the IC-card pin arrangements figure of prior art;
Fig. 2 is the IC-card seat contact arrangement figure of prior art;
Fig. 3 is an IC-card seated connection line schematic diagram of the present utility model.
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the waterproof construction of slide-contact-type IC-card seat of the present utility model.
The basic principle of the structure of the waterproof of slide-contact-type IC-card seat of the present utility model is: utilize the IC-card pin in the plug-in card sliding process, make two function contacts of corresponding IC-card seat that the short circuit phenomenon of moment take place, replaced the switching function of the switch contact of IC-card seat.Promptly do not need switch, finished the switching function of IC-card seat yet.Thereby avoided IC-card seat switch contact because of the malfunctioning phenomenon of corrosion.
As shown in Figure 1, IC-card Pin locations and order are by standard arrangement, and its pin C1 is operating voltage VCC, pin C2 is reset signal RST, and pin C3 is a clock signal clk, and pin C4, C6, C8 are sky pin NC, pin C5 is ground wire GND, and pin C7 is data input and output SDA.
As shown in Figure 2, and the arrangement of the contact position of IC-card seat and order is corresponding with IC-card Pin locations and order, wherein the pin of the C1 to C8 of corresponding IC-card is distinguished in the contact of sequence number 1 to 8, and contact 9 and contact 10 are status switches of IC-card seat, contact 9 is a fixed contact, the position is motionless, and contact 10 is moving contacts, generally make with elastic reed, when the IC-card plug-in card puts in place, contact 9 can be connected with contact 10, produces a triggering signal this moment and passes to card reading unit and begin the Card Reader operation.
The structure of the waterproof of slide-contact-type IC-card seat of the present utility model is not utilized fixed contact 9 and moving contact 10 in real work, but will distinguish contact 5 and the contact 6 of reconfiguration to deck with the line of fixed contact 9 and moving contact 10.When IC-card inserts in the IC-card seat, along the direction of arrow when the front slide, IC-card pin C1, C2, C3, C4 at first contact with IC- card seat contact 1,2,3,4 respectively, the pin C5 of IC-card contacts with contact 6 with deck contact 5 then, make IC-card seat contact 5 and contact 6 closed short circuits, last IC-card is inserted into the position, and its pin C1, C2, C3, C4, C5, C6, C7, C8 contact with IC- card seat contact 1,2,3,4,5,6,7,8 respectively, begins to carry out the Card Reader operation.In the plug-in card process,, begin to carry out the Card Reader operation like this because the closed short circuit of deck contact 5 and contact 6 equally also produces a triggering signal and passes to card reading unit.
As shown in Figure 3, wiring board 11 is equipped with CPU12, binding post 13 and pull-up resistor R1, R2, R3, R4.Deck contact 1 links to each other with the operating voltage VCC point of binding post 13, deck contact 2 links to each other with reset signal RST point, and contact 3 links to each other with tie point SCL point, and contact 5 links to each other with ground wire GND point, contact 6 links to each other with tie point Kc point, and contact 7 links to each other with data input and output SDA point.When carrying out plug-in card work by the above-mentioned requirements IC-card, instantaneous short circuit takes place in deck contact 5 and contact 6, make instantaneous short circuit also takes place between Kc and the ground wire GND simultaneously, to produce a triggering signal to CPU12, when CPU12 detected tie point Kc point for low level, promptly the decidable plug-in card put in place, and VCC begins power supply, make the pin of each corresponding IC-card seat contact and IC-card produce high level by pull-up resistor R1, R2, R3, R4 simultaneously, the operation of beginning Card Reader.
Owing to need to expend certain hour in the plug-in card process, put in place fully a time difference to IC-card when instantaneous short circuit take place in deck contact 5 and contact 6, so the working procedure of CPU12 will leave certain perdurabgility from the triggering signal to the Card Reader, about 1 to 3 second just passable.
Claims (1)
1. the waterproof construction of a slide-contact-type IC-card seat, this IC-card seat comprise contact position and the order arrangement respectively with the IC-card Pin locations and the order corresponding first contact (1) to the 8th contact (8), the card reading unit that is electrically connected to the 8th contact (8) with first contact (1), first contact (1) to the 8th contact (8) are first contact (1), second contact (2), the 3rd contact (3), the 4th contact (4), the 5th contact (5), the 6th contact (6), the 7th contact (7), the 8th contact (8), it is characterized in that:
Described card reading unit includes wiring board (11) that CPU (12) is installed and the binding post (13) that is electrically connected with CPU (12), binding post (13) is electrically connected with pull-up resistor R1, R2, R3, R4, IC-card seat first contact (1) links to each other with the operating voltage VCC electricity of binding post (13), IC-card seat second contact (2) links to each other with the reset signal RST electricity of binding post (13), IC-card seat the 3rd contact (3) links to each other with the tie point SCL electricity of binding post (13), IC-card seat the 5th contact (5) links to each other with the ground wire GND electricity of binding post (13), IC-card seat the 6th contact (6) links to each other with the tie point Kc electricity of binding post (13), and IC-card seat the 7th contact (7) links to each other with the data input and output SDA electricity of binding post (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201824735U CN201812970U (en) | 2010-05-07 | 2010-05-07 | Waterproof structure of slide contact type IC card seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201824735U CN201812970U (en) | 2010-05-07 | 2010-05-07 | Waterproof structure of slide contact type IC card seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201812970U true CN201812970U (en) | 2011-04-27 |
Family
ID=43895908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201824735U Expired - Fee Related CN201812970U (en) | 2010-05-07 | 2010-05-07 | Waterproof structure of slide contact type IC card seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201812970U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062222A (en) * | 2018-10-17 | 2020-04-24 | 深圳市文鼎创数据科技有限公司 | IC device payment method, IC device, card reading equipment and storage medium |
| CN117391035A (en) * | 2023-12-11 | 2024-01-12 | 成都电科星拓科技有限公司 | Chip with self-defined pin function and implementation method |
-
2010
- 2010-05-07 CN CN2010201824735U patent/CN201812970U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111062222A (en) * | 2018-10-17 | 2020-04-24 | 深圳市文鼎创数据科技有限公司 | IC device payment method, IC device, card reading equipment and storage medium |
| CN111062222B (en) * | 2018-10-17 | 2023-11-17 | 深圳市文鼎创数据科技有限公司 | IC device payment method, IC device, card reading equipment and storage medium |
| CN117391035A (en) * | 2023-12-11 | 2024-01-12 | 成都电科星拓科技有限公司 | Chip with self-defined pin function and implementation method |
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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 |
Granted publication date: 20110427 Termination date: 20170507 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |