CN112382876A

CN112382876A - Card holder, electronic equipment and card holder detection method

Info

Publication number: CN112382876A
Application number: CN202011136455.8A
Authority: CN
Inventors: 曾庆铮; 苏东旭
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-02-19
Anticipated expiration: 2040-10-21
Also published as: CN112382876B

Abstract

The application discloses a card support, electronic equipment applying the card support and a detection method of the card support. The card holder comprises a card seat, and the card seat is provided with a mounting position for mounting a user identity identification card; the cassette still is equipped with and installs the position spaced discernment region, and the discernment region includes a ground connection foot contact area and a plurality of function foot contact area, and ground connection foot contact area is equipped with first electrically conductive contact, and at least one region in a plurality of function foot contact areas is equipped with the electrically conductive contact of second, and first electrically conductive contact switches on with the electrically conductive contact electrical property of second. The technical scheme of this application can provide one kind and can hold in the palm the effective mode that distinguishes with single card and two card.

Description

Card holder, electronic equipment and card holder detection method

Technical Field

The present disclosure relates to electronic products, and particularly to a card holder, an electronic device using the card holder, and a method for detecting the card holder.

Background

For electronic devices (such as mobile phones, tablet computers, etc.) needing to be equipped with a Subscriber Identity Module (SIM) card, the subscriber identity module is usually installed in a card holder. Along with the change of the user requirements, the electronic equipment gradually evolves into a single-card version and a double-card version, and a single-card holder and a double-card holder are correspondingly equipped. Due to the generalization requirement of materials, the internal structure (such as a mainboard and the like) of the material is universal no matter the material is in a single-card version or a double-card version; this also results in a uniform profile for either the single card holder or the dual card holder, with only a different number of card slots for receiving the subscriber identification cards. Therefore, when the single-card support and the double-card support produced by the production line are mixed, an effective mode for distinguishing the single-card support and the double-card support is not available except a manual observation mode.

Disclosure of Invention

The application mainly aims to provide a card support, electronic equipment applying the card support and a detection method of the card support, and aims to provide an effective mode capable of distinguishing a single card support from a double card support.

An embodiment of the application provides a card holder, which comprises a card holder, wherein the card holder is provided with a mounting position for mounting a user identity identification card;

the card holder is further provided with a recognition area which is spaced from the installation position, the recognition area comprises a grounding pin contact area and a plurality of functional pin contact areas, the grounding pin contact area is provided with a first conductive contact, at least one area in the functional pin contact areas is provided with a second conductive contact, and the first conductive contact is electrically conducted with the second conductive contact.

An embodiment of the present application further provides an electronic device, which includes a housing and a card holder, where the card holder includes a card socket, and the card socket is provided with a mounting location for mounting a user identification card;

the card holder is also provided with a recognition area which is spaced from the installation position, the recognition area comprises a grounding pin contact area and a plurality of functional pin contact areas, the grounding pin contact area is provided with a first conductive contact, at least one area of the plurality of functional pin contact areas is provided with a second conductive contact, and the first conductive contact is electrically conducted with the second conductive contact;

the outer surface of the shell is provided with a jack, and the clamping support is inserted into the jack.

An embodiment of the present application further provides a method for detecting a card holder, where the card holder includes a card holder, and the card holder is provided with a mounting location for mounting a user identification card;

the detection method is applied to card support detection equipment, and the card support detection equipment comprises a grounding pin and a detection pin;

the grounding pin is used for contacting with the first conductive contact of the card holder when the card holder is arranged in the detection position of the card holder detection equipment;

the detection pin is used for contacting with the second conductive contact of the card holder when the card holder is arranged in the detection position of the card holder detection equipment;

the control method comprises the following steps:

pulling up the level of the detection pin, and detecting the level state of the detection pin;

if the level state is detected to be a low level state, generating a first detection result; and if the level state is detected to be a high level state, generating a second detection result.

The technical scheme of this application, be equipped with first conductive contact through the ground pin contact area in the discernment region, at least one region in a plurality of function foot contact areas is equipped with the electrically conductive contact of second, and switch on first conductive contact and the electrically conductive contact electrical property of second, just dispose and accomplished the card support that there is special level state in a discernment region corresponding pin (short circuit pin), thereby alright utilize the card to hold in the palm check out test set with all cards that possess this special level state hold in the palm (single card holds in the palm) discernment, and then replaced the mode of artificial observation, an effective mode that can hold in the palm and distinguish with double card support is provided.

Drawings

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

FIG. 1 is a schematic structural diagram of an embodiment of a card holder of the present application;

FIG. 2 is a schematic view of the card holder of FIG. 1 from another perspective;

FIG. 3 is a schematic view of an assembly structure of the card holder and the SIM card of FIG. 2;

FIG. 4 is a schematic view of the assembled structure of the card holder and the SIM card of FIG. 3 with the conductive member removed;

FIG. 5 is a schematic diagram of the circuit of FIG. 3 when the user identification card is detected by the card-holding detection device;

FIG. 6 is a timing diagram of the user identification card of FIG. 3 as detected by the card-holding detection device; the solid line at the reset pin represents the level state of the reset pin in a set of pins corresponding to the card reading area, and the dotted line at the reset pin represents the level state of the reset pin in a set of pins corresponding to the identification area;

FIG. 7 is a schematic structural diagram of another embodiment of a card holder of the present application;

fig. 8 is a flowchart illustrating an embodiment of a method for detecting a card tray according to the present application.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Card holder	1334	Power supply pin contact area
10	Card holder	1335	Data pin contact area
				11	Front side	1336	Programming pin contact area
111	Mounting position	30	Conductive member
				13	Back side of the panel	31	A first conductive part
131	Card reading area	33	Second conductive part
				133	Identifying regions	35	Connecting part
1331	Ground pin contact area	50	End cap
				1332	Clock foot contact area	200	User identification card
1333	Reset foot contact area

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The present application provides a card support 100, which aims to provide an effective way to distinguish between a single card support and a double card support.

It is understood that the card holder 100 of the present application can be applied to electronic devices, which can be, but not limited to, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (motion Picture Experts Group Audio Layer III) player, an MP4 (motion Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, etc.

The specific structure of the card holder 100 of the present application will be described in the following specific embodiments:

as shown in fig. 1 to 4, in an embodiment of the card holder 100 of the present application, the card holder 100 includes a card socket 10, where the card socket 10 is provided with a mounting position 111 for mounting a user identification card 200;

the card socket 10 is provided with a card reading area 131 corresponding to the installation position 111, and is used for exposing each contact of the user identification card 200 installed at the installation position 111;

the card socket 10 is further provided with an identification area 133 spaced from the mounting position 111, the identification area 133 includes a ground pin contact area 1331 and a plurality of functional pin contact areas, the ground pin contact area 1331 is provided with a first conductive contact, at least one of the plurality of functional pin contact areas is provided with a second conductive contact, and the first conductive contact is electrically conducted with the second conductive contact.

In this embodiment, the card holder 10 is a plate-shaped structure, and two oppositely arranged plate surfaces of the plate-shaped structure respectively form a front surface 11 of the card holder 10 and a back surface 13 of the card holder 10; that is, the cartridge 10 has a front face 11 and a back face 13 disposed oppositely. Also, a surface of the plate-shaped structure facing the front of the electronic device (e.g., a mobile phone, a tablet computer, etc.) is defined as a front surface 11 of the card socket 10, and a surface of the plate-shaped structure facing the rear of the electronic device (e.g., a mobile phone, a tablet computer, etc.) is defined as a rear surface 13 of the card socket 10. Of course, in other embodiments, the surface of the plate-shaped structure facing the front of the electronic device (e.g., a mobile phone, a tablet computer, etc.) may be defined as the back surface 13 of the socket 10, and the surface of the plate-shaped structure facing the rear of the electronic device (e.g., a mobile phone, a tablet computer, etc.) may be defined as the front surface 11 of the socket 10.

The mounting position 111 is disposed on the front surface 11 of the card socket 10, and is in the form of a groove, so as to limit and fix the user identification card 200 by means of the sidewall of the groove. Further, the recess is also configured in the form of a contour groove to play a fool-proof role when the user identification card 200 is installed and to play a role of enhancing stability after the user identification card 200 is installed. Of course, in other embodiments, the mounting position 111 may also be in other effective and reasonable forms, for example, the mounting position 111 is a plane area, and the user id card 200 is limited and fixed by the limiting structures such as the buckles and the ribs arranged around the mounting position.

The card reading area 131 is arranged on the back surface 13 of the card holder 10, and is in the form of an opening which is directly communicated to the bottom wall of the groove; at this time, the user id card 200 may be installed in the groove in such a manner that each contact point of the user id card 200 faces the bottom wall of the groove, so that each contact point of the user id card 200 can be exposed through the opening of the bottom wall of the groove, that is, each contact point of the user id card 200 can be exposed through the card reading area 131. Each contact of the user identification card 200 is used for correspondingly contacting with a set of pins (including a grounding pin, a clock pin, a reset pin, a power supply pin, a data pin and a programming pin) in the card support detection device. Of course, in other embodiments, the card reading area 131 may be disposed on the front surface 11 of the card socket 10 and is formed by the notch of the aforementioned groove; at this time, the user id card 200 may be installed in the groove in such a manner that each contact point of the user id card 200 faces away from the bottom wall of the groove, so that each contact point of the user id card 200 can be exposed from the slot of the groove, that is, each contact point of the user id card 200 can be exposed from the card reading area 131.

The identification area 133 is also provided on the rear surface 13 of the card holder 10 and spaced apart from the card reading area 131. The identification area 133 includes a ground pin contact area 1331 and a plurality of functional pin contact areas including a clock pin contact area 1332, a reset pin contact area 1333, a power pin contact area 1334, a data pin contact area 1335, and a programming pin contact area 1336. Each contact area of the identification area 133 is used for correspondingly contacting with another set of pins (including a ground pin, a clock pin, a reset pin, a power supply pin, a data pin and a programming pin) in the card holder detection device. The grounding pin contact area 1331 is provided with a first conductive contact, at least one of the functional pin contact areas is provided with a second conductive contact, and the first conductive contact is electrically connected to the second conductive contact. Of course, in other embodiments, the identification area 133 may be disposed on the front surface 11 of the socket 10.

Thus, when the user id card 200 is inserted into the card holder detection device together with the card holder 100, a set of pins in the card holder detection device can be correspondingly contacted with each contact of the user id card 200 through the card reading area 131, so that the user id card 200 can be identified and can operate normally. Specifically, as shown in fig. 5 and 6, the card support detection device will perform the process of identifying the user identification card 200 through the set of pins, and the timing sequence is as follows:

1. the power supply pin (VDD/VCC) supplies power and changes into high level;

2. a clock pin (CLK) provides a stable clock signal;

3. the data pin (I/O) is pulled up to high level and is in a receiving state;

4. the level of the reset pin (RST) is changed from low to high.

It can be seen that when a set of pins in the card holder detection device can be in contact with each contact of the user id card 200, the pins can be changed to high level normally.

Meanwhile, another set of pins in the card holder detection device can be correspondingly contacted with each contact area of the identification area 133, specifically: the grounding pin in the set of pins is contacted with the first conductive contact, and at least one of the other pins is contacted with the second conductive contact; namely: the ground pin of the set of pins is shorted to at least one of the remaining pins. At this time, the level of the pin in the set of pins, which is short-circuited with the ground pin, cannot be normally raised.

Based on this, the pin (e.g., reset pin) shorted to the ground pin may be connected to a detection port (e.g., general purpose input/output port, abbreviated as GPIO), and the level state of the pin (e.g., reset pin) shorted to the ground pin is read through the detection port, so that whether the user id card 200 is also installed in the identification area 133 can be identified through the level state of the pin (e.g., reset pin) shorted to the ground pin, and thus the card holder 100 inserted into the card holder detection apparatus is a single card holder or a dual card holder. Specifically, the card-tray detection device will perform the process of identifying the identification area 133 through another set of pins, as shown by the dashed line at the reset pin of fig. 6: the level of the reset pin (RST) will always remain low.

It can be seen that, when the other set of pins in the card holder detection device cannot be correspondingly contacted with the contacts of the user id card 200, i.e. the identification area 133 is present, the level of the reset pin in the pins is always kept at a low level, and cannot be pulled high.

That is, when a different card holder 100 is inserted into the card holder detection device, the detection port (e.g., general purpose input/output port, GPIO for short) will read two different cases as follows:

when the dual card holder is inserted, since the identification region 133 can be configured in a normal form (i.e., the same form as the card reading region 131), the level of the reset pin read by the detection port (e.g., general purpose input/output port, GPIO for short) is pulled high;

when the single card holder is inserted, since the identification region 133 may be configured in an abnormal form (i.e., the aforementioned ground pin contact region 1331 is provided with the first conductive contact, at least one of the plurality of functional pin contact regions is provided with the second conductive contact, and the first conductive contact and the second conductive contact are electrically conducted), the detection port (e.g., general purpose input/output port, abbreviated as GPIO) reads that the reset pin always maintains a low level state.

In this way, the type of the inserted card holder 100 can be identified.

Therefore, it can be understood that, in the technical solution of this embodiment, by providing the first conductive contact in the ground pin contact area 1331 of the identification area 133, providing the second conductive contact in at least one of the plurality of functional pin contact areas, and electrically connecting the first conductive contact and the second conductive contact, the card holder 100 having a special level state in the pin (short-circuited pin) corresponding to one identification area 133 is configured, so that all the card holders 100 (single card holders) having the special level state can be identified by using the card holder detection device, and an effective way for distinguishing the single card holder from the double card holders is provided instead of a manual observation way.

It should be noted that, in addition to the example that one of the functional pin contact areas is provided with the second conductive contact, two or more areas may be provided with the second conductive contact in the clock pin contact area 1332, the reset pin contact area 1333, the power supply pin contact area 1334, the data pin contact area 1335, and the programming pin contact area 1336; at this time, two or more detection ports (for example, general purpose input/output ports, abbreviated as GPIOs) are correspondingly configured to recognize two or more low level states, and the type of the card tray 100 can be recognized as well.

The first conductive contact may be in the form of a metal pad, a metal spring, a metal plate, a conductive film, or the like, and the second conductive contact may also be in the form of a metal pad, a metal spring, a metal plate, a conductive film, or the like. Moreover, the electrical conduction between the first conductive contact and the second conductive contact can be realized in various forms such as a wire, a circuit board, a flexible circuit board and the like.

In addition, the first conductive contact, the second conductive contact and the electrical conduction therebetween may also have other effective and reasonable configuration forms:

as shown in fig. 2 to 4, in an embodiment of the card holder 100 of the present application, the card holder 100 further includes a conductive member 30, the conductive member 30 is disposed in the identification region 133, the conductive member 30 includes a first conductive portion 31, a second conductive portion 33 and a connecting portion 35, the first conductive portion 31 is disposed in the ground pin contact region 1331 to form the first conductive contact, the second conductive portion 33 is disposed in at least one of the plurality of functional pin contact regions to form the second conductive contact, and the connecting portion 35 connects the first conductive portion 31 and the second conductive portion 33. It can be understood that, in the technical solution of this embodiment, the first conductive contact, the second conductive contact and the electrical conduction relationship therebetween are obtained by configuring the conductive member 30 on the card holder 100, which not only has a simple structure and is convenient to manufacture, but also has excellent stability and reliability.

In addition, in an embodiment of the card holder 100 of the present application, the conductive member 30 may be configured as follows:

the second conductive portions 33 are provided in plural, and each of the second conductive portions 33 is provided in one of the functional pin contact areas. That is, each functional pin contact area is provided with a second conductive portion 33. Thus, when the user id card 200 is inserted into the card holder detection device together with the card holder 100, the clock pin, the reset pin, the power supply pin, the data pin, and the programming pin are all shorted with the ground pin in a set of pins corresponding to the identification area 133, and the average power on the clock pin, the reset pin, the power supply pin, the data pin, and the programming pin cannot be normally raised.

At this time, a detection port (for example, a general purpose input/output port, abbreviated as GPIO) is configured on any pin short-circuited with the ground pin, so that a low level state can be recognized; therefore, the identification of the most basic type of the card support 100 can be guaranteed, more data information can be obtained, and the identification accuracy and fault tolerance rate are improved. In addition, in the specific implementation, in order to increase the contactable area of the pins in the card support detection device and reduce the requirement on the setting precision of the pins in the card support detection device, thereby reducing the probability of the occurrence of the situation which cannot be identified, the following structural form can be adopted:

as shown in fig. 7, the conductive member 30 is a conductive plate, which is laid on the identification region 133 and covers the ground pin contact region 1331 and the plurality of functional pin contact regions. It is understood that such an embodiment may further simplify the structure of the conductive device 30, facilitate the manufacturing of the conductive device 30 and the card holder 100, and further improve the stability and reliability of the conductive device 30.

Specifically, the conductive plate may be a metal plate body such as an aluminum plate, a copper plate, an aluminum alloy plate, a copper alloy plate, or the like; the substrate may be a composite plate formed of a substrate and a conductive film. It should be noted that, the conductive plate is a metal plate, which not only can further simplify the structure of the conductive member 30 and facilitate the production and manufacturing of the conductive member 30 and the card holder 100, but also can further enhance the strength of the identification region 133 and reduce the probability of error in identification of the identification region 133 due to the good strength and conductivity of the metal plate.

It can be understood that, the card reading area 131 and the identification area 133 are both arranged on the back surface 13 of the card socket 10, so that two sets of pins in the card holder detection device and two sets of pins in the electronic device (such as a mobile phone, a tablet computer, etc.) can be configured on the same side of the card holder 100, thereby facilitating the arrangement of the card holder in the corresponding device, facilitating the connection of the card holder with a motherboard in the corresponding device, and achieving the purpose of optimizing the internal circuit layout of the corresponding device; and, structural stability and functional reliability of the inside of the corresponding device can also be improved.

Further, as shown in fig. 2, the card holder 100 further includes an end cover 50, the card holder 10 is convexly disposed on an inner side surface of the end cover 50, the card holder 10 has a side edge disposed from the inner side surface of the end cover 50 to a direction away from the end cover 50, and the mounting position 111 and the identification area 133 are sequentially disposed along a length direction of the side edge. Like this, make full use of on the corresponding equipment casing jack depth direction space, reduced the trompil size on the corresponding equipment casing, promoted casing intensity, promoted complete machine wholeness.

The present application also proposes an electronic device, which includes a housing and the card holder 100 as described above, and the specific structure of the card holder 100 is detailed in the foregoing embodiments. Since the electronic device adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by all the technical solutions of all the embodiments are achieved, and no further description is given here.

The outer surface of the housing is provided with a jack, and the card holder 100 is inserted into the jack.

Specifically, the electronic device may be, but is not limited to, a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an e-book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a wearable device, a navigator, a handheld game console, and the like.

The application also provides a detection method of the card holder 100, which is applied to card holder detection equipment.

Card holds in palm check out test set includes ground connection foot and detection foot:

the grounding pin is used for contacting with a first conductive contact of the card holder 100 when the card holder 100 is arranged in a detection position of the card holder detection equipment;

the detection pin is used for contacting with a second conductive contact of the card holder 100 when the card holder 100 is arranged in a detection position of the card holder detection device;

at this time, as shown in fig. 8, the method for controlling the card holder 100 includes the steps of:

step S10, judging whether a detection request is received;

step S20, if yes, pulling up the level of the detection pin and detecting the level state of the detection pin;

step S30, if it is detected that the level state is a low level state, generating a first detection result; if the level state is detected to be a high level state, generating a second detection result; the first detection result is a single card support, and the second detection result is a double card support;

and step S40, stopping the action of pulling up the level of the detection pin, and reporting the result.

Specifically, the detection request in step S10 may be automatically generated by the card tray detection device when the card tray 100 is loaded into the detection position of the card tray detection device; the operation of the user may be generated after the card holder 100 is placed in the detection position of the card holder detection device, for example, when the pressing operation of the user is detected through the interactive interface. In step S20, if it is determined that the detection request has not been received, the process returns to the previous step S10. The detection port (such as general purpose input/output port, abbreviated as GPIO) is disposed on the detection pin and is used for reading the level state of the detection pin.

That is, when a different card holder 100 is mounted to the detection bit of the card holder detection device, the detection port (e.g., general purpose input/output port, GPIO for short) will read two different cases as follows:

when the dual card holder is inserted, since the identification area 133 of the card holder 100 can be configured to be in a normal form (i.e. the same form as the card reading area 131), the level of the detection pin read by the detection port (e.g. general purpose input/output port, GPIO for short) is pulled high;

when the single card holder is inserted, since the identification region 133 of the card holder 100 can be configured in an abnormal form (i.e., the aforementioned grounding pin contact region 1331 is provided with the first conductive contact, at least one of the plurality of functional pin contact regions is provided with the second conductive contact, and the first conductive contact and the second conductive contact are electrically conducted), the detection port (e.g., a general purpose input/output port, abbreviated as GPIO) reads that the detection pin always maintains a low level state.

In this way, the type of the inserted card holder 100 can be identified.

In addition, it should be noted that the detection pin may be one of a plurality of functional pins of the card support detection device, and the plurality of functional pins of the card support detection device include a clock pin, a reset pin, a power supply pin, a data pin, and a programming pin. The ground pin, the clock pin, the reset pin, the power supply pin, the data pin and the programming pin of the card support detection device jointly form a set of pins in the card support detection device.

Of course, when two or more areas of the clock pin contact area 1332, the reset pin contact area 1333, the power supply pin contact area 1334, the data pin contact area 1335 and the programming pin contact area 1336 in the identification area 133 of the card holder 100 are provided with second conductive contacts, two or more detection pins of the card holder detection device may be correspondingly configured, so that each detection pin is correspondingly contacted with one second conductive contact; at this time, by correspondingly configuring two or more detection ports (for example, general purpose input/output ports, abbreviated as GPIOs), that is, configuring one detection port (for example, general purpose input/output ports, abbreviated as GPIOs) on each detection pin, two or more low level states can be identified, and the type of the card tray 100 can also be identified. In addition, the mode is favorable for obtaining more data information and improving the identification accuracy and fault tolerance rate.

The above description is only an alternative embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.

Claims

1. A card support is applied to electronic equipment and is characterized by comprising a card seat, wherein the card seat is provided with a mounting position for mounting a user identity identification card;

2. The card holder of claim 1, wherein a plurality of said functional pin contact areas include a clock pin contact area, a reset pin contact area, a power pin contact area, a data pin contact area, a programming pin contact area.

3. The card holder according to claim 1, further comprising a conductive member provided in said identification area, said conductive member including a first conductive portion provided in said ground pin contact area to constitute said first conductive contact, a second conductive portion provided in at least one of said plurality of said function pin contact areas to constitute said second conductive contact, and a connecting portion connecting said first conductive portion and said second conductive portion.

4. The card holder of claim 3, wherein a plurality of second conductive portions are provided, each second conductive portion being provided in a functional pin contact area.

5. The card holder of claim 4, wherein said conductive member is a conductive plate, said conductive plate being laid over said identification area, said conductive plate covering said ground pin contact area and a plurality of said functional pin contact areas.

6. The card holder of claim 5, wherein the conductive plate is a metal plate body.

7. The card holder according to any one of claims 1 to 6, wherein the card socket is provided with a card reading area corresponding to the mounting position for exposing each contact of a user identification card mounted at the mounting position;

the card holder is provided with a front side and a back side which are arranged in a back-to-back mode, the installation position is arranged on the front side of the card holder, and the card reading area and the identification area are arranged on the back side of the card holder.

8. The card holder of claim 7, further comprising an end cap, wherein the card holder is protruded from an inner side surface of the end cap, the card holder has a side edge disposed from the inner side surface of the end cap toward a direction away from the end cap, and the mounting position and the identification area are sequentially disposed along a length direction of the side edge.

9. An electronic device, comprising a housing and the card holder according to any one of claims 1 to 8, wherein the housing has a jack formed on an outer surface thereof, and the card holder is inserted into the jack.

10. A method for detecting a card holder according to any one of claims 1 to 8, applied to a card holder detection device comprising a grounding pin and a detection pin;

the control method is characterized by comprising the following steps: