A built-in card reader structure

By introducing a positioning roller and support rod system into the card reader, the wear problem caused by the copper wire positioning method is solved, achieving stable rolling contact of the card and extending its service life.

CN115713088BActive Publication Date: 2026-05-08JINAN CHENGYUAN INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINAN CHENGYUAN INFORMATION TECH CO LTD
Filing Date
2022-11-22
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing card readers use the elastic force generated by the compression and deformation of copper wires to position and clamp the card, which causes wear on the positioning copper wires inside the card and the reader, affecting its service life.

Method used

The positioning roller structure utilizes non-woven fabric to increase the contact area and changes to rolling contact. Combined with a pressure sensor and a motor-driven support rod system, it achieves stable card positioning and data reading.

Benefits of technology

It reduces wear on the copper plates inside the card and reader, extends their service life, and reduces the failure rate of the connection module.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115713088B_ABST
Patent Text Reader

Abstract

The application provides a built-in card reader structure and relates to the technical field of card readers. The built-in card reader structure comprises a shell, the inner side surface of the shell is fixedly connected with a partition plate, the upper surface of the partition plate is provided with guide holes, the inside of the guide holes is provided with guide rods, the bottom of the guide rods extends to the outside of the guide holes and is fixedly connected with fixed blocks, the fixed blocks are movably connected with rotating shafts, the inner bottom of the shell is fixedly connected with mounting seats, the surfaces of the mounting seats and the rotating shafts are provided with positioning rollers, and the positioning rollers are movably connected with the mounting seats. The positioning rollers are arranged to position the card, the surfaces of the positioning rollers are made of non-woven fabric, the contact area with the card is increased, the contact mode of the card is changed from sliding to rolling, the friction between the card and the positioning rollers can be effectively reduced, the abrasion of the copper sheet on the card and the copper wire in the card reader can be reduced, and the service life of the card and the card reader can be prolonged.
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Description

Technical Field

[0001] This invention relates to the field of card reader technology, specifically to a built-in card reader structure. Background Technology

[0002] A card reader is a device that reads cards. Due to the wide variety of card types, the term "card reader" has a broad meaning. Memory cards are widely used in smartphones and cameras, so in a broader sense, smartphones and cameras can also be considered card readers. Based on the type of memory card they store, card readers can be categorized as CF card readers, SM card readers, PCMICA card readers, and Memory Stick readers. There are also dual-slot card readers that can use two or more types of cards simultaneously. As mobile phones and other electronic products are moving towards non-removable designs, built-in card readers are becoming increasingly common.

[0003] Currently, card readers fix cards by using the elastic force generated by the compression and deformation of copper wires to position and clamp the cards. This positioning method allows for quick insertion and removal of cards. However, with prolonged insertion and removal of cards, the copper plates of the card and the copper wires inside the card reader will wear down, which will affect the lifespan of both the card reader and the card. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a built-in card reader structure that solves the problem that current card readers use the elastic force generated by the compression and deformation of copper wires to position and clamp the cards. While this positioning method allows for quick card insertion and removal, prolonged insertion and removal of cards can cause wear on the copper plates of the card and the copper wires inside the card reader, thus affecting the lifespan of both the card reader and the card.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a built-in card reader structure, comprising a housing, a partition fixedly connected to the inner surface of the housing, a guide hole on the upper surface of the partition, a guide rod installed inside the guide hole, a fixing block fixedly connected to the bottom of the guide rod extending to the outside of the guide hole, a rotating shaft movably connected between the fixing blocks, a mounting base fixedly connected to the inner bottom of the housing, positioning rollers mounted on the surfaces of the mounting base and the rotating shaft, the positioning rollers movably connected to the mounting base, and the positioning rollers fixedly connected to the surface of the rotating shaft, an upper support plate fixedly connected to the lower surface of the partition, a lower support plate disposed below the upper support plate, a support rod movably connected to one end of the upper support plate and the lower support plate, the other end of the support rod movably connected to a nut via a connector, a pressure sensor fixedly connected to the lower surface of the lower support plate, a fixing plate fixedly connected to the detection end of the pressure sensor, and a connecting module fixedly connected to the lower surface of the fixing plate. The partition is designed to facilitate the positioning and installation of electronic components. The guide hole is designed to facilitate the installation of the guide rod. The guide rod is designed to facilitate the positioning and guidance of the vertically moving fixed block. The fixed block is designed to facilitate the positioning and installation of the rotating shaft. The rotating shaft and mounting base are designed to facilitate the positioning and installation of the positioning roller. The positioning roller is designed to facilitate the positioning and installation of the card body. The upper support plate and lower support plate are designed to facilitate the vertical movement of the fixed plate. The pressure sensor is designed to facilitate the detection of the pressure when the connecting module contacts the card body.

[0008] Preferably, a spring is fixedly connected to the upper surface of the fixing block, the top of the spring is fixedly connected to the lower surface of the partition, the guide rod is located inside the spring, and the top of the guide rod extends to the outside of the guide hole and is fixedly connected to a limit block. The spring is provided to facilitate the positioning and clamping of the card body using its elastic force, and also to push the positioning roller to quickly reset.

[0009] Preferably, a lead screw is installed inside the nut, a bearing is fixedly connected to the right end of the lead screw, and a motor is located on the left side of the lead screw, with the output end of the motor fixedly connected to the left end of the lead screw. The lead screw is used to facilitate the movement of the nut, thereby controlling the expansion and contraction of the support rod and the up and down movement of the lower support plate.

[0010] Preferably, a fixing rod is fixedly connected to both the surface of the motor and the outer surface of the bearing, and a slider is fixedly connected to the other end of the fixing rod. Slide rails are fixedly connected to both the front and rear inner surfaces of the housing, and the slider is movably connected inside the slide rails. The fixing rods are used to facilitate positioning and limiting of the motor and bearing, while the sliders are used to allow the motor and bearing to move up and down along a straight line.

[0011] Preferably, an inlet is provided on the right side surface of the housing, and a card body is installed between the positioning rollers, with one right end of the card body extending to the outside of the housing. The inlet is provided to facilitate the insertion of the card body.

[0012] Preferably, a base plate is fixedly connected to the inner bottom of the housing near the left edge, and the right surface of the base plate contacts one left end of the card body. The base plate is provided to facilitate positioning of the card body.

[0013] Preferably, an electronic component is fixedly connected to the upper surface of the partition, the electronic component is arranged symmetrically from left to right, and lugs are fixedly connected to the upper and lower surfaces of the housing near the front and rear edges, the lugs are arranged symmetrically from left to right.

[0014] Working principle: In use, the card body is inserted into the housing through the inlet. Due to its thickness, the card body pushes open the positioning roller above and compresses the spring to contract. At this time, the elastic force generated by the spring compression positions and presses the card body. Then, the motor drives the lead screw to rotate, which in turn drives the nut to move, allowing the support rod to unfold. After the fixed rod unfolds, the lower support plate moves downward until the connecting module contacts the copper plate on the card body. At the same time, a pressure sensor detects the pressure value on the card body. When the pressure value reaches the set value, the motor stops running. The electronic components power the card body to read data from the chip inside the card body. After the data reading is completed, the reverse motor drives the lower support plate to rise, at which point the card body can be removed.

[0015] (III) Beneficial Effects

[0016] This invention provides a built-in card reader structure. It has the following advantages:

[0017] 1. By setting a positioning roller to position the card, and the surface of the positioning roller is made of non-woven fabric, the contact area with the card is increased. The contact method of the card is changed from sliding to rolling, which can effectively reduce the friction between the card and the reader. This helps to reduce the wear of the copper sheet on the card and the copper wire inside the card reader, and helps to extend the service life of the card and the card reader.

[0018] 2. By changing the contact method between the connection module and the copper sheet to a pressure-type contact, the sliding contact area with the card can be minimized, which helps to reduce the wear of the connection module and reduce the failure rate of the connection module. Attached Figure Description

[0019] Figure 1 This is a perspective view of the external structure of a built-in card reader proposed in this invention.

[0020] Figure 2 This is a front view of the internal structure of a built-in card reader structure proposed in this invention;

[0021] Figure 3 This is a schematic diagram of the motor mounting structure of a built-in card reader proposed in this invention;

[0022] Figure 4 This is an enlarged view of a built-in card reader structure proposed in this invention;

[0023] Figure 5 This is an enlarged view of a built-in card reader structure proposed in this invention.

[0024] The components are as follows: 1. Housing; 2. Ear; 3. Partition; 4. Electronic component; 5. Card body; 6. Base plate; 7. Mounting seat; 8. Positioning roller; 9. Inlet; 10. Lower support plate; 11. Pressure sensor; 12. Slide rail; 13. Bearing; 14. Lead screw; 15. Support rod; 16. Upper support plate; 17. Guide rod; 18. Limiting block; 19. Spring; 20. Fixing block; 21. Rotating shaft; 22. Slider; 23. Motor; 24. Fixing rod; 25. Nut; 26. Fixing plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] like Figure 1-5As shown, this embodiment of the invention provides a built-in card reader structure, including a housing 1. A partition 3 is fixedly connected to the inner surface of the housing 1. A guide hole is formed on the upper surface of the partition 3. A guide rod 17 is installed inside the guide hole. A fixing block 20 is fixedly connected to the bottom of the guide rod 17 and extends to the outside of the guide hole. A rotating shaft 21 is movably connected between the fixing blocks 20. A mounting base 7 is fixedly connected to the inner bottom of the housing 1. Positioning rollers 8 are installed on the surfaces of the mounting base 7 and the rotating shaft 21. The positioning rollers 8 are movably connected to the mounting base 7 and fixedly connected to the surface of the rotating shaft 21. An upper support is fixedly connected to the lower surface of the partition 3. The upper support plate 16 has a lower support plate 10 below it. One end of the support rod 15 is movably connected between the upper support plate 16 and the lower support plate 10. The other end of the support rod 15 is movably connected to the nut 25 through a connector. A pressure sensor 11 is fixedly connected to the lower surface of the lower support plate 10. A fixing plate 26 is fixedly connected to the detection end of the pressure sensor 11. A connecting module is fixedly connected to the lower surface of the fixing plate 26. The connecting module is mainly used to contact the copper sheet of the card body 5, so as to realize the operation of reading data by connecting the chip inside the card body 5 through power. The surface material of the positioning roller 8 is made of non-woven fabric.

[0027] A spring 19 is fixedly connected to the upper surface of the fixing block 20. The top of the spring 19 is fixedly connected to the lower surface of the partition 3. The guide rod 17 is located inside the spring 19. The top of the guide rod 17 extends to the outside of the guide hole and is fixedly connected to the limit block 18.

[0028] A lead screw 14 is installed inside the nut 25. A bearing 13 is fixedly connected to the right end of the lead screw 14. A motor 23 is installed on the left side of the lead screw 14. The output end of the motor 23 is fixedly connected to the left end of the lead screw 14. The threads on the left and right ends of the lead screw 14 are opposite.

[0029] A fixing rod 24 is fixedly connected to both the surface of the motor 23 and the outer surface of the bearing 13. A slider 22 is fixedly connected to the other end of the fixing rod 24. A slide rail 12 is fixedly connected to both the front and rear inner surfaces of the housing 1. The slider 22 is movably connected inside the slide rail 12.

[0030] An inlet 9 is provided on the right side surface of the housing 1, and a card body 5 is installed between the positioning rollers 8. One end of the right side of the card body 5 extends to the outside of the housing 1.

[0031] A base plate 6 is fixedly connected to the bottom of the inner part of the housing 1 near the left edge, and the right side surface of the base plate 6 is in contact with one left end of the card body 5.

[0032] Electronic components 4 are fixedly connected to the upper surface of the partition 3. The electronic components 4 are arranged symmetrically on the left and right. Ears 2 are fixedly connected to the upper and lower surfaces of the housing 1, near the front edge and the rear edge. The ear pieces 2 are arranged symmetrically on the left and right.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A built-in card reader structure, comprising a housing (1), characterized in that: A partition plate (3) is fixedly connected to the inner surface of the housing (1). A guide hole is provided on the upper surface of the partition plate (3). A guide rod (17) is installed inside the guide hole. A fixing block (20) is fixedly connected to the bottom of the guide rod (17) extending to the outside of the guide hole. A rotating shaft (21) is movably connected between the fixing blocks (20). A mounting base (7) is fixedly connected to the inner bottom of the housing (1). Positioning rollers (8) are installed on the surfaces of the mounting base (7) and the rotating shaft (21). The positioning rollers (8) are movably connected to the mounting base (7). The positioning rollers (8) are movably connected to the rotating shaft (21). The surface of the partition (3) is fixedly connected, and an upper support plate (16) is fixedly connected to the lower surface of the partition (3). A lower support plate (10) is provided below the upper support plate (16). One end of a support rod (15) is movably connected to the upper support plate (16) and the lower support plate (10). The other end of the support rod (15) is movably connected to a nut (25) through a connector. A pressure sensor (11) is fixedly connected to the lower surface of the lower support plate (10). A fixing plate (26) is fixedly connected to the detection end of the pressure sensor (11). A connecting module is fixedly connected to the lower surface of the fixing plate (26).

2. The built-in card reader structure according to claim 1, characterized in that: A spring (19) is fixedly connected to the upper surface of the fixing block (20). The top of the spring (19) is fixedly connected to the lower surface of the partition (3). The guide rod (17) is located inside the spring (19). The top of the guide rod (17) extends to the outside of the guide hole and is fixedly connected to a limit block (18).

3. The built-in card reader structure according to claim 1, characterized in that: A lead screw (14) is installed inside the nut (25). A bearing (13) is fixedly connected to the right end of the lead screw (14). A motor (23) is provided on the left side of the lead screw (14). The output end of the motor (23) is fixedly connected to the left end of the lead screw (14).

4. The built-in card reader structure according to claim 3, characterized in that: The surface of the motor (23) and the outer surface of the bearing (13) are both fixedly connected to a fixing rod (24). The other end of the fixing rod (24) is fixedly connected to a slider (22). The front and rear inner surfaces of the housing (1) are both fixedly connected to a slide rail (12). The slider (22) is movably connected inside the slide rail (12).

5. The built-in card reader structure according to claim 1, characterized in that: An inlet (9) is provided on the right side surface of the housing (1), and a card body (5) is installed between the positioning rollers (8). One end of the right side of the card body (5) extends to the outside of the housing (1).

6. The built-in card reader structure according to claim 5, characterized in that: A base plate (6) is fixedly connected to the inner bottom of the housing (1) and near the left edge, and the right side surface of the base plate (6) is in contact with the left end of the card body (5).

7. The built-in card reader structure according to claim 1, characterized in that: Electronic components (4) are fixedly connected to the upper surface of the partition (3). The electronic components (4) are arranged symmetrically on the left and right. Ears (2) are fixedly connected to the upper and lower surfaces of the housing (1) near the front edge and the rear edge. The ears (2) are arranged symmetrically on the left and right.

Citation Information

Patent Citations

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    CN211827273U

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    JP1996339515A