CN215416675U

CN215416675U - Card insertion detection structure and card reading device

Info

Publication number: CN215416675U
Application number: CN202121736711.7U
Authority: CN
Inventors: 黄明辉
Original assignee: PAX Computer Technology Shenzhen Co Ltd
Current assignee: PAX Computer Technology Shenzhen Co Ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-04
Anticipated expiration: 2031-07-28

Abstract

The application provides a structure and card reading device are detected to plug-in card, and the structure is detected to the plug-in card includes: the card reader comprises a card reader body, wherein a card slot is formed in the card reader body; the switch assembly is arranged on the card reader body and is electrically connected with the card reader body; and the pushing assembly is used for pushing the switch assembly to open the switch assembly when the card is inserted into the card slot, is arranged on the card reader body and extends into the card slot. The pushing switch assembly is pushed when the card is inserted into the clamping groove by the pushing assembly, so that the card insertion detection is realized, the pushing assembly and the switch assembly are not required to be conducted, and the reliability of the card insertion detection is favorably improved.

Description

Card insertion detection structure and card reading device

Technical Field

The application belongs to the technical field of POS machines, and particularly relates to a card insertion detection structure and a card reading device.

Background

Two metal elastic sheets are matched to detect the card in the existing card reader, when the card is inserted into a card slot of the card reader, the card pushes one metal elastic sheet to be connected with the other metal elastic sheet in a butt mode, and therefore the circuit is connected. However, when the metal elastic sheet is used, the surface of the metal elastic sheet is easily oxidized and corroded, or is contaminated by dust and the like, so that the conductivity of the metal elastic sheet is affected, and the detection failure is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the present application is to provide a card insertion detection structure, so as to solve the technical problem that the surface of a metal spring plate in a card reader in the prior art is easily oxidized and corroded, or is contaminated by dust, etc., and thus detection failure is easily caused.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is a card insertion detection structure including:

the card reader comprises a card reader body, wherein a card slot for inserting a card is formed in the card reader body;

the switch assembly is used for detecting the card, is arranged on the card reader body and is electrically connected with the card reader body; and the number of the first and second groups,

the pushing assembly is used for pushing the switch assembly to open the switch assembly when the card is inserted into the clamping groove, and is installed on the card reader body and extends into the clamping groove.

The pushing switch assembly is pushed when the card is inserted into the clamping groove by the pushing assembly, whether the card is inserted into the clamping groove or not can be judged according to the signal of opening the switch assembly as the signal of whether the card is inserted into the clamping groove or not, and therefore the detection of whether the card is inserted into the card reader body or not can be achieved. The card detection structure has the advantages that the pushing assembly and the switch assembly are not required to be conducted, the pushing assembly can push the switch assembly only when the card is inserted, opening of the switch assembly is achieved, whether the card is inserted into the clamping groove or not can be guaranteed to be accurately detected, detection failure caused by insulation between the pushing assembly and the switch assembly is avoided, and reliability of the card detection structure is improved.

In one embodiment, the card reader body comprises a card support, a card reading seat for reading the card and a first circuit board electrically connected with the card reading seat, the card slot is opened on the card support, the first circuit board is installed on one side of the card support, and the card reading seat is installed on one side of the first circuit board close to the card slot; the switch assembly comprises a first switch installed on the first circuit board, and the pushing assembly comprises a first elastic arm installed on the card reading seat and used for matching with and pushing the first switch.

Through adopting above-mentioned technical scheme, can open first switch when the card inserts the draw-in groove, realize that the plug-in card detects.

In one embodiment, the first elastic arm includes a connection plate connected to the card reader, an arc plate connected to a free end of the connection plate, and a pressing plate connected to the arc plate, a middle portion of the arc plate protrudes toward an inner side of the card slot, and the first switch is located on the first circuit board at a position corresponding to the pressing plate.

Through adopting above-mentioned technical scheme, can utilize the first bullet arm swing of card ejection when the card inserts the draw-in groove.

In one embodiment, the pressure plate is convexly disposed toward the first switch.

Through adopting above-mentioned technical scheme, be favorable to reducing the swing range of first bullet arm.

In one embodiment, the card reader body includes a card holder, a card reading seat for reading the card, a first circuit board electrically connected to the card reading seat, and a second circuit board electrically connected to the first circuit board, the card slot is opened on the card holder, the first circuit board is mounted on one side of the card holder, the card reading seat is mounted on one side of the first circuit board close to the card slot, the second circuit board is mounted on the other side of the card holder, the switch assembly includes a second switch mounted on the second circuit board, and the pushing assembly includes a second elastic arm disposed on the card holder and used for cooperatively pushing the second switch.

Through adopting above-mentioned technical scheme, can open the second switch when the card inserts the draw-in groove, realize the plug-in card and detect.

In one embodiment, a free end of the second elastic arm is provided with a boss protruding towards the inner side of the card slot, and the second switch is arranged on the second circuit board at a position corresponding to the free end of the second elastic arm.

Through adopting above-mentioned technical scheme, can utilize the card to promote the second and play the arm when the card inserts the draw-in groove.

In one embodiment, the free end of the second elastic arm is provided with an abutting block which is matched with and abuts against the second switch.

Through adopting above-mentioned technical scheme, can reduce the swing range of second bullet arm.

In one embodiment, the second resilient arm is integrally formed with the card bracket.

Through adopting above-mentioned technical scheme, the processing of the second of being convenient for bullet arm.

In one embodiment, the switch assembly includes at least one of a snap switch, a membrane switch, or a tact switch.

Through adopting above-mentioned technical scheme, be favorable to ensureing the reliability that the plug-in card detected the structure.

The embodiment of the application also provides a card reading device which comprises the plug-in card detection structure in any embodiment.

Through adopting above-mentioned technical scheme, be favorable to ensureing the reliability that the plug-in card detected.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of a card insertion detection structure according to an embodiment of the present application;

FIG. 2 is an exploded view of the interposer detection structure of FIG. 1;

fig. 3 is a first schematic perspective view of the card reader base and the first elastic arm in fig. 2;

fig. 4 is a second schematic perspective view of the card reader base and the first elastic arm in fig. 2;

FIG. 5 is a first perspective view of the card bracket and the second resilient arm of FIG. 2;

fig. 6 is a second schematic perspective view of the card holder and the second elastic arm in fig. 2.

Wherein, in the figures, the respective reference numerals:

1-a card reader body; 11-card holder; 110-card slot; 111-slotting; 112-a baffle; 12-a card reader base; 120-strip shaped holes; 121-blocking convex; 122-a stop block; 13-a first circuit board; 14-a second circuit board;

2-a switching assembly; 21-a first switch; 22-a second switch;

3-a pushing assembly; 31-a first resilient arm; 311-connecting plate; 312-an arc plate; 313-a platen; 32-a second elastic arm; 321-a boss; 322-a butt block;

4-card.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "upper," "lower," "front," "rear," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings for ease of description and simplicity of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to fig. 3 together, a card insertion detection structure according to an embodiment of the present application will be described. The card insertion detection structure comprises a card reader body 1, a switch component 2 and a pushing component 3, wherein a card slot 110 is formed in the card reader body 1, and the card slot 110 is used for inserting a card 4 so as to read the card 4. The switch component 2 is installed on the card reader body 1, the switch component 2 is electrically connected with the card reader body 1, and the switch component 2 is used for outputting a signal of inserting the card 4 into the card slot 110. The pushing component 3 is used for pushing the switch component 2, the pushing component 3 is installed on the card reader body 1, the pushing component 3 extends into the card slot 110, when the card 4 is inserted into the card slot 110, the card 4 pushes the pushing component 3, and the pushing component 3 pushes the switch component 2, so that the switch component 2 is turned on. Therefore, whether the card 4 is inserted into the card slot 110 or not can be judged according to the signal of the opening of the switch component 2 as the signal of whether the card 4 is inserted into the card slot 110 or not, so that whether the card 4 is inserted into the card reader body 1 or not can be detected. Because the pushing component 3 is adopted to push the switch component 2 to realize the opening of the switch component 2, the conduction between the pushing component 3 and the switch component 2 is not needed, the pushing component 3 can push the switch component 2 only when the card 4 is inserted, the opening of the switch component 2 is realized, whether the card 4 is inserted into the clamping groove 110 or not can be ensured to be accurately detected, the detection failure caused by the insulation between the pushing component 3 and the switch component 2 is avoided, and the reliability of the card detection structure is favorably improved.

In an embodiment of the present application, referring to fig. 1 to 3, the card reader body 1 includes a card support 11, a card reading seat 12 and a first circuit board 13, the card support 11 is provided with a card slot 110, the card reading seat 12 is used for electrically connecting with a chip on a card 4 to read information of the card 4, the first circuit board 13 is electrically connected with the card reading seat 12, the first circuit board 13 is installed on one side of the card support 11, and the card reading seat 12 is installed on one side of the first circuit board 13 close to the card slot 110. The card reading seat 12 extends into the card slot 110, and when the card 4 is inserted into the card slot 110, the card reading seat 12 can be abutted against a chip on the card 4 to be conducted, so that the card 4 can be read and identified. Moreover, the switch component 2 and the card support 11 can be separated, so that the structure of the card support 11 is simplified, and the diversity of the switch component 2 is increased.

In an embodiment, referring to fig. 1, fig. 2 and fig. 4, the switch assembly 2 includes a first switch 21, the pushing assembly 3 includes a first elastic arm 31, the first switch 21 is mounted on the first circuit board 13, the first elastic arm 31 is mounted on the card reader 12, and the first elastic arm 31 is used for matching with the pushing of the first switch 21. When the card 4 is inserted into the card slot 110, the card 4 pushes the first elastic arm 31 to move in a direction away from the card slot 110, and the first elastic arm 31 pushes the first switch 21, so that the first switch 21 is turned on.

In another embodiment, referring to fig. 1, fig. 2 and fig. 5, the card reader body 1 further includes a second circuit board 14, the second circuit board 14 is mounted on the other side of the card support 11, and the second circuit board 14 is electrically connected to the first circuit board 13; the switch assembly 2 comprises a second switch 22, the pushing assembly 3 comprises a second elastic arm 32, the second switch 22 is mounted on the second circuit board 14, the second elastic arm 32 is arranged on the card support 11, and the second elastic arm 32 is used for matching with and pushing the second switch 22. When the card 4 is inserted into the card slot 110, the card 4 can push the second elastic arm 32, so that the second elastic arm 32 moves to the outside of the card slot 110, and the second elastic arm 32 pushes the second switch 22, thereby turning on the second switch 22.

In another embodiment of the present application, referring to fig. 2 to 4, the switch assembly 2 includes a first switch 21 and a second switch 22, and the pushing assembly 3 includes a first elastic arm 31 and a second elastic arm 32; the first switch 21 is mounted on the first circuit board 13, the first elastic arm 31 is mounted on the card reader base 12, and the first elastic arm 31 pushes the first switch 21 in a matching manner; the second switch 22 is mounted on the second circuit board 14, the second elastic arm 32 is disposed on the card holder 11, and the second elastic arm 32 is used for pushing the second switch 22 in a matching manner. First switch 21 is pushed up through first bullet arm 31, can open first switch 21, and second bullet arm 32 pushes up second switch 22, can open second switch 22, realizes inserting the detection of draw-in groove 110 to card 4, can realize dual detection, the reliability that the guarantee detected.

In an embodiment of the present application, referring to fig. 2 to 4, the first elastic arm 31 includes a connection plate 311, an arc plate 312 and a pressing plate 313, one end of the connection plate 311 is connected to the card reading base 12, one end of the arc plate 312 is connected to the other end of the connection plate 311, a middle portion of the arc plate 312 protrudes toward the inner side of the card slot 110, the pressing plate 313 is disposed opposite to the first switch 21, the pressing plate 313 is configured to push against the first switch 21, and the pressing plate 313 is connected to the other end of the arc plate 312. Because the middle portion of the arc plate 312 protrudes toward the inner side of the card slot 110, when the card 4 is inserted into the card slot 110, the card 4 can push the arc plate 312 to move toward the outer side of the card slot 110, and the arc plate 312 drives the pressing plate 313 to push the first switch 21, so as to open the first switch 21. With the arc-shaped plate 312, resistance when the card 4 is inserted into the card slot 110 can be reduced, and abrasion of the arc-shaped plate 312 to the card 4 can be reduced. Moreover, the arc plate 312 is located the free end of the connecting plate 311, so that the connecting plate 311 can be deformed and swung conveniently, the pressing plate 313 is located at a position where the arc plate 312 is far away from the connecting plate 311, the displacement of the pressing plate 313 is increased when the first elastic arm 31 swings, the displacement of the arc plate 312 is reduced, and the detection sensitivity is improved.

In one embodiment of the present application, referring to fig. 2, 3 and 4, the middle portion of the pressing plate 313 protrudes toward the first switch 21. This is favorable to reducing the distance between the pressing plate 313 and the first switch 21, is favorable to reducing the swing amplitude when the first elastic arm 31 pushes the first switch 21 to open, is favorable to reducing the resistance and wear of the first elastic arm 31 to the card 4, and is favorable to realizing the opening of the first switch 21 when the card 4 is inserted into the card slot 110. The edge of the protruding portion of the pressure plate 313 may have an arc transition, which is beneficial to reduce the wear of the first switch 21. Of course, a bump may be disposed on the pressing plate 313, and the bump pushes against the first switch 21 to reduce the swing amplitude of the first elastic arm 31.

In an embodiment of the present application, referring to fig. 2 to 4, the first elastic arm 31 is disposed along the depth direction of the card slot 110, a strip-shaped hole 120 is formed on the card-reading seat 12, the strip-shaped hole 120 is used for the first elastic arm 31 to be inserted, and one end of the first elastic arm 31 away from the bottom of the card slot 110 is fixedly connected to the card-reading seat 12. Thus, the first elastic arm 31 can push the first switch 21 when the card 4 is inserted into the bottom of the card slot 110, so as to turn on the first switch 21, and the resistance of the free end of the first elastic arm 31 to swing can be reduced. The depth direction of the card slot 110 is the direction of inserting the card 4.

Optionally, referring to fig. 2 to 4, the connecting plate 311 is disposed along the depth direction of the card slot 110, one end of the connecting plate 311 away from the bottom of the card slot 110 is fixedly connected to the card reader 12, and the arc-shaped plate 312 is located at the other end of the connecting plate 311, along the length direction of the connecting plate 311: the arc plate 312 is protruded from the middle of the arc plate 312 to the two ends of the arc plate 312 in a direction close to the inner side of the slot 110; the pressing plate 313 is formed by bending the other end of the arc plate 312 in a direction away from the connecting plate 311. Therefore, the first elastic arm 31 can be formed by stamping a sheet material, and processing is convenient. Of course, the card reader 12 may be a plastic member, and the first elastic arm 31 may be a plastic elastic arm integrally formed with the card reader 12.

In an embodiment of the present application, referring to fig. 2 to 4, a stop protrusion 121 is disposed on the card socket 12, the stop protrusion 121 is used for stopping the card 4, and the stop protrusion 121 is located at an end of the first elastic arm 31 close to the bottom of the card slot 110. The card 4 can be stopped by the stopping protrusion 121, and the insertion depth of the card 4 is controlled, so that the detection of the card 4 by the card insertion detection structure is realized when the card 4 is inserted into the bottom of the card slot 110. Moreover, scratching of the chip on the card 4 by the arc plate 312 can be avoided.

Optionally, referring to fig. 2 to 4, a stop block 122 is disposed on the stop protrusion 121, the stop block 122 is used for stopping the pressing plate 313, and the stop block 122 is located on a side of the pressing plate 313 away from the second circuit board 14. Therefore, the swing amplitude of the pressing plate 313 and the arc-shaped plate 312 can be limited, and the position and the angle of the arc-shaped plate 312 and the card 4 when the card 4 is inserted into the card slot 110 are controlled, so that the resistance of the card 4 passing through the arc-shaped plate 312 is reduced.

In an embodiment of the present application, referring to fig. 2, fig. 5 and fig. 6, one end of the second elastic arm 32 is connected to the card holder 11, the other end of the second elastic arm 32 is provided with a boss 321, the boss 321 protrudes toward the inner side of the card slot 110, the second switch 22 is disposed on the second circuit board 14 at a position corresponding to the other end of the second elastic arm 32, that is, the free end of the second elastic arm 32 is provided with the boss 321, and the second switch 22 is disposed on the second circuit board 14 at a position corresponding to the free end of the second elastic arm 32. Thus, when the card 4 is inserted into the card slot 110, the card 4 can push the boss 321, so that the second elastic arm 32 swings towards the outside of the card slot 110, and further pushes the second switch 22, thereby turning on the second switch 22. Optionally, one side that boss 321 is close to first bullet arm 31 is equipped with the arcwall face, and along second bullet arm 32 length direction, the arcwall face is increased gradually to the perpendicular distance of first bullet arm 31 by the middle part of arcwall face to the both ends of arcwall face, is favorable to reducing the resistance and the pressure of boss 321 to card 4 like this.

In an embodiment of the present application, referring to fig. 2, fig. 5 and fig. 6, the other end of the second elastic arm 32 is provided with an abutting block 322, the abutting block 322 is matched to abut against and push the second switch 22, the abutting block 322 is located at a side of the second elastic arm 32 close to the second circuit board 14, the second switch 22 and the abutting block 322 are arranged oppositely, that is, the abutting block 322 is arranged at a free end of the second elastic arm 32, and the abutting block 322 is matched to push the second switch 22. When second bullet arm 32 swings towards the draw-in groove 110 outside like this, butt piece 322 can support and push away second switch 22 to be favorable to reducing the distance between second bullet arm 32 and the second switch 22, reduce the swing range of second bullet arm 32, be favorable to reducing the resistance and the wearing and tearing of second bullet arm 32 to card 4, be convenient for when card 4 inserts draw-in groove 110 opening of second switch 22.

In one embodiment of the present application, referring to fig. 2, 5 and 6, the second elastic arm 32 is integrally formed with the card holder 11. Therefore, the second elastic arm 32 can be processed on the card bracket 11 by injection molding, which facilitates the processing of the second elastic arm 32. Of course, the second elastic arm 32 may be a metal elastic arm. Optionally, the card holder 11 is provided with a slot 111, the slot 111 is provided on a side wall of the card slot 110 away from the first circuit board 13, the slot 111 penetrates through the other side of the card holder 11, and the second elastic arm 32 is located in the slot 111. That is, the other side of the card holder 11 is provided with a U-shaped groove, and the second elastic arm 32 is located in the U-shaped groove, so as to facilitate the swing of the free end of the second elastic arm 32.

Alternatively, referring to fig. 2, 5 and 6, the second elastic arm 32 is disposed along the depth direction of the card slot 110, and an end of the second elastic arm 32 away from the bottom of the card slot 110 is connected to the card holder 11. This facilitates the card 4 to push the second elastic arm 32 to swing, which is beneficial to reduce the resistance and abrasion of the card 4 when being inserted into the card slot 110.

In an embodiment of the present application, referring to fig. 2, 5 and 6, the card holder 11 is provided with a baffle 112, the baffle 112 forms a bottom surface of the card slot 110, and the baffle 112 is located at the other end of the second elastic arm 32. This enables the depth of insertion of the card 4 to be positioned by the blocking plate 112, so that when the card 4 is inserted into the bottom of the card slot 110, the second elastic arm 32 pushes the second switch 22 to open the second switch 22.

Optionally, referring to fig. 2, fig. 3 and fig. 5, the first elastic arm 31 and the second elastic arm 32 are disposed opposite to each other, and the boss 321 is located on the second elastic arm 32 corresponding to the arc-shaped plate 312, so that when the card 4 is inserted between the boss 321 and the arc-shaped plate 312, it is ensured that the two sides of the card 4 are forced to face each other, and the card 4 is prevented from being distorted and deformed.

Optionally, referring to fig. 4 and 5, the blocking plate 112 is provided with an opening for the blocking protrusion 121 to be inserted into. This prevents the baffle 112 from interfering with the protrusions 121.

In one embodiment of the present application, referring to fig. 2, the switch assembly 2 includes a snap-action switch. Through adopting the metal dome switch, can utilize the top to push away subassembly 3 top push away the metal dome switch, realize opening of metal dome switch. The metal dome switch has simple structure, better dustproof performance and high reliability. Of course, the switch assembly 2 may be a membrane switch or a tact switch, or the switch assembly 2 may include any two of a dome switch, a membrane switch, and a tact switch.

Alternatively, referring to fig. 2, the first switch 21 is a dome switch, and the second switch 22 is a dome switch. Therefore, the dustproof device has the advantages of good dustproof performance, high reliability, simple structure and small occupied space. Of course, the first switch 21 may be a membrane switch or a tact switch, and the second switch 22 may be a membrane switch or a tact switch.

The embodiment of the application also provides a card reading device, and the card reading device comprises the card insertion detection structure in any one of the embodiments. Through adopting above-mentioned plug-in card to detect the structure, can realize the detection to card 4 when card 4 inserts draw-in groove 110, and can ensure the reliability that card 4 detected.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. Plug-in card detects structure, its characterized in that includes:

2. The card insertion detection structure according to claim 1, wherein: the card reader body comprises a card support, a card reading seat for reading the card and a first circuit board electrically connected with the card reading seat, the card slot is arranged on the card support, the first circuit board is arranged on one side of the card support, and the card reading seat is arranged on one side of the first circuit board close to the card slot; the switch assembly comprises a first switch installed on the first circuit board, and the pushing assembly comprises a first elastic arm installed on the card reading seat and used for matching with and pushing the first switch.

3. The card insertion detection structure according to claim 2, wherein: the first elastic arm comprises a connecting plate connected with the card reading seat, an arc-shaped plate connected with the free end of the connecting plate and a pressing plate connected with the arc-shaped plate, the middle of the arc-shaped plate is arranged towards the inner side of the clamping groove in a protruding mode, and the first switch is located on the first circuit board and corresponds to the pressing plate.

4. The card insertion detection structure according to claim 3, wherein: the pressing plate is arranged towards the first switch in a protruding mode.

5. The card insertion detection structure according to claim 1, wherein: the card reader body comprises a card support, a card reading seat used for reading the card, a first circuit board electrically connected with the card reading seat and a second circuit board electrically connected with the first circuit board, the clamping groove is formed in the card support, the first circuit board is installed on one side of the card support, the card reading seat is installed on one side, close to the clamping groove, of the first circuit board, the second circuit board is installed on the other side of the card support, the switch assembly comprises a second switch installed on the second circuit board, and the pushing assembly comprises a second elastic arm which is arranged on the card support and used for being matched with and pushing the second switch.

6. The card insertion detection structure according to claim 5, wherein: the free end of the second elastic arm is provided with a boss protruding towards the inner side of the clamping groove, and the second switch is arranged on the second circuit board and corresponds to the free end of the second elastic arm.

7. The card insertion detection structure according to claim 5, wherein: and the free end of the second elastic arm is provided with an abutting block which is matched with the second switch in an abutting mode.

8. The card insertion detection structure according to claim 5, wherein: the second elastic arm and the card support are integrally formed.

9. The card insertion detection structure according to any one of claims 1 to 8, characterized in that: the switch assembly comprises at least one of a snap switch, a membrane switch or a tact switch.

10. Card reading device, its characterized in that: comprising the paddle-card detection structure of any of claims 1 to 9.