Four-in-one card seat with switch structure

Abstract

The utility model relates to the technical field of electronic equipment connectors, in particular to a four-in-one card seat with a switch structure. Comprising a first main body and a second main body, the first main body and the second main body enclose to form an accommodating groove, a card holder with four card slots is arranged in the accommodating groove, the first main body is provided with a first terminal, and the second main body is provided with a second terminal, a switch static sheet and a switch moving sheet. When the card support is installed in or separated from the accommodating groove, the switch moving plate is driven to be contacted with or separated from the switch static plate. In addition, the second main body is further provided with a plurality of first welding pins and a positioning installation column, and the first main body is provided with a multifunctional shell, second welding pins, a positioning block and an avoiding opening. Through the design, simultaneous support of multiple types of memory cards is realized, and the reliability of the card holder and the user experience are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic device connector, in particular to a four-in-one socket with switch structure. BACKGROUND

[0002] Multi-socket is widely used in electronic devices, especially in smartphones, tablets and other portable electronic products. These devices usually need to support multiple types of SIM cards and memory cards to meet the needs of different users. Traditional single or multi-card designs have been unable to meet the growing market demand for diversification. Therefore, developing a multifunctional socket that can simultaneously support multiple cards has become one of the focuses of current technological development.

[0003] The existing four-in-one socket mainly realizes the support of different types of cards through the design of physical structure. Common design schemes include using multiple card slots on a single card holder and adapting to different sizes of cards through a detachable way. For example, some designs use a double-layer card holder, which sets multiple card slots on the same card holder, thereby realizing the simultaneous support of multiple types of cards. Some other designs set movable parts inside the socket, so that the card holder can automatically adjust its position according to the different cards inserted, ensuring that each card can be correctly installed and maintain good electrical connection.

[0004] However, the four-in-one socket in the prior art has a significant defect: when the card holder is taken out or put into the socket, there is a lack of effective detection mechanism, which causes the system to be unable to accurately judge the state of the card holder, and may cause misjudgment or even damage the device. In addition, this deficiency may also cause data reading errors or communication interruptions, seriously affecting user experience and the reliability of the device. CONTENT OF THE UTILITY MODEL

[0005] The purpose of the present application is to provide a four-in-one socket with switch structure.

[0006] The above technical purpose of the present application is achieved by the following technical scheme: a four-in-one socket with switch structure, comprising a first body and a second body, the first body and the second body jointly form an accommodating groove, a card holder is arranged in the accommodating groove, the card holder is recessed with a first card slot near the first body side, and the card holder is recessed with a second card slot, a third card slot and a fourth card slot near the second body side respectively; a first terminal is arranged on the first body, and a second terminal is arranged on the second body; a switch static sheet and a switch dynamic sheet are arranged on the second body, and when the card holder is installed into or separated from the accommodating groove, the switch dynamic sheet will contact or separate from the switch static sheet.

[0007] By adopting the technical scheme, the card holder is formed by the first body and the second body to enclose the accommodating groove and the card holder with multiple card slots, realizes the four-in-one function, can accommodate different types of cards at the same time, effectively meets the diversified use requirements, and improves the storage and communication capability expansion of the equipment. The first terminal and the second terminal arranged on the first body and the second body respectively ensure stable and reliable electrical connection with external equipment, providing protection for data transmission and signal interaction. The linkage mechanism of the switch static sheet and the switch dynamic sheet on the second body and the card holder has important functionality. When the card holder is installed or separated from the accommodating groove, the switch dynamic sheet contacts or separates from the switch static sheet, which can provide a simple and effective card holder state detection mechanism for the equipment, avoiding the problems of system misjudgment, data reading error and communication interruption caused by the inability to accurately judge the card holder state in the prior art, greatly enhancing the reliability and user experience of the equipment. At the same time, the related functions of the equipment can also be flexibly controlled according to the state of the card holder, such as automatically starting the corresponding read-write operation when the card holder is inserted, and stopping the operation in time when the card holder is pulled out, thereby avoiding potential risks and resource waste caused by the absence of the card holder.

[0008] Optionally, the second body is provided with a plurality of first soldering feet near the accommodating groove opening.

[0009] By adopting the technical scheme, the first soldering feet can enhance the structural strength of the second body in this area, making the accommodating groove opening part more stable, which helps to withstand the frequent insertion and removal operation of the card holder, reducing the risk of local structure deformation or damage caused by long-term use. The first soldering feet provide additional connection points for the card holder in terms of circuit connection, providing the possibility for subsequent electrical connection expansion, so that the four-in-one card holder can be more flexibly and reliably electrically connected with other electronic components or circuit boards in actual application, improving the expandability and compatibility of the product. At the same time, the first soldering feet can also be used as a positioning reference during assembly, which helps to accurately install and position other related components, ensuring the assembly accuracy of the overall product structure and further improving the stability and reliability of the product.

[0010] Optionally, the first body is provided with a shell, the shell is provided with a plurality of second soldering feet, the second body is provided with a first clamping member, the shell is provided with a second clamping member, the first clamping member is clamped with the second clamping member, and the second body fixes the first body in cooperation with the shell.

[0011] By adopting the technical scheme, the shell can provide physical protection for the first main body, prevent the internal components from being affected by external environmental factors (such as dust, moisture, mechanical impact, etc.), and prolong the service life of the internal components. The plurality of second soldering pins on the shell can firmly install the four-in-one card seat with a switch structure on the corresponding circuit board or other installation positions, ensuring that the entire mechanism does not shift or loosen during use. By fixing in the form of welding, very high connection strength can be provided, so that the card seat can still maintain a stable position when subjected to external mechanical stress (such as movement, vibration, etc.), ensuring the accuracy and reliability of the card holder during card insertion and removal, preventing problems such as jamming, poor contact, etc. between the card holder and the accommodation slot due to the shaking of the card seat. The fixing method of the second soldering pin ensures the close connection between the four-in-one card seat and the surrounding circuit system, providing stable support for the first and second terminals, ensuring the reliability of the electrical connection. In complex electronic devices, various components need to work together, and the soldering pin can keep the card seat and other electronic components in precise relative positions, which is conducive to signal transmission and interaction. In addition, due to the firmness of welding, short circuits, open circuits and other electrical faults caused by loose connections can be avoided, improving the overall safety and reliability of the device. Moreover, through reasonable layout and precise welding of the soldering pins, the card seat can be installed in the most suitable position according to different device layouts and installation requirements, meeting the diversified needs of different devices for space utilization and structural layout, so that the four-in-one card seat can better integrate into the design of various electronic devices, improving the universality and applicability of the product.

[0012] Optionally, the first clamping member is provided with a plurality of second clamping members corresponding to the first clamping member.

[0013] By adopting the above technical scheme, the plurality of clamping pieces significantly enhances the connection stability between the first body and the second body. The plurality of clamping pieces can disperse the force, so that the connection between the first body and the second body can better withstand external forces from different directions, such as forces generated during plugging and unplugging, or external impacts and vibrations during transportation and use, thereby effectively avoiding damage or loosening of the connection components due to concentrated stress, ensuring the integrity and reliability of the card seat structure. The design of multiple clamping pieces improves the precision and firmness of the clamping fit. The plurality of clamping pieces work together to more accurately position the relative positions of the first body and the second body, avoiding position deviations that may occur with a single clamping piece, ensuring the positional accuracy between the card holder, the card slot, the terminal, and other components, and thereby ensuring the normal operation of the entire card seat. The design of multiple clamping pieces provides higher fault tolerance. During assembly, if the clamping effect of a clamping piece is not ideal, other clamping pieces can still ensure a certain connection strength and stability, improving the success rate of assembly.

[0014] Optionally, the first body is provided with a positioning block, and the second body is provided with a positioning groove, and the positioning block is capable of being fitted and installed in the positioning groove.

[0015] By adopting the above technical scheme, it is helpful to further accurately determine the relative positions between the first body and the second body, ensure the assembly accuracy of the entire four-in-one card seat structure, avoid position deviation or misalignment during assembly, and ensure that the card holder, the card slot, the terminal, the switch static sheet, and the switch dynamic sheet, and other components can be accurately installed and worked according to the design requirements. It can enhance the structural stability of the entire card seat, so that each component can maintain a good cooperative working state during subsequent use. Even when the device is subjected to a certain degree of vibration or impact, the relative positional relationship between the components can be maintained, thereby ensuring smooth plugging and unplugging operation of the card holder in the accommodation groove, improving the reliability and durability of the product. At the same time, it can also serve as an important reference during subsequent production and assembly, facilitating quick and accurate assembly operation by workers or automated equipment, improving production efficiency, reducing product failure rate caused by assembly errors, and providing strong support for large-scale production and high-quality manufacturing of products.

[0016] Optionally, the positioning block is provided with a guide inclined surface near the side of the card holder.

[0017] By adopting the above technical solutions, the guide slope plays a guiding and assisting role in the installation process of the card holder. When the card holder is inserted into the accommodating groove, the guide slope can help the card holder to cooperate with the positioning block more smoothly, reduce the collision and jamming phenomenon between the card holder and the positioning block, enable the card holder to enter the correct position more easily, and improve the operation convenience and efficiency of the card holder insertion. The risk of damaging the internal structure of the card seat due to improper card holder insertion operation can be reduced. Even if the insertion direction of the card holder is slightly deviated, the guide slope can guide the card holder to the correct position, avoiding problems such as deformation of the card slot, damage to the positioning block or damage to other components caused by forced insertion, thereby prolonging the service life of the card seat. The design of the guide slope improves the fault tolerance of the entire card seat, to some extent, reduces the precision requirement for the card holder insertion operation, makes the user more convenient when using the four-in-one card seat, and also brings convenience for the assembly and maintenance of the product, improves the overall performance and user experience of the product.

[0018] Optionally, a plurality of positioning installation columns are arranged on the second body.

[0019] By adopting the above technical solutions, the positioning installation columns can provide accurate positioning and installation reference for other related components during assembly. They can help ensure that other structural components connected to the second body, such as circuit boards or other modules, can be accurately installed at the predetermined position, ensuring the assembly accuracy of the entire four-in-one card seat, avoiding structural deviation and functional failure due to inaccurate installation position. Multiple positioning installation columns enhance the structural stability of the second body. They can withstand certain external pressure and tension. When the card seat is subjected to external forces such as insertion and removal of the card holder, device vibration or impact, the positioning installation columns can act as a support structure to reduce deformation of the second body, ensure the relative position stability of the internal components, and thus ensure the normal operation of the card holder, card slot, terminal, switch component, etc., improving the reliability and durability of the product. The positioning installation columns also provide more installation options and flexibility for the four-in-one card seat in different application scenarios. When integrating the card seat into various electronic devices, these positioning installation columns can facilitate connection and fixation with other components, adapt to different device layouts and installation requirements, improve the versatility and expandability of the card seat, and enable it to better integrate into different electronic device systems.

[0020] Optionally, the first body is provided with a relief opening for avoiding the handle position of the card holder. The profile of the relief opening is smoothly arranged to avoid scratching or hindering the user's hand during operation.

[0021] By adopting the above technical solution, the avoiding opening is specially used for avoiding the handgrip position of the card holder, which provides convenience for the user to operate the card holder, so that the user will not be hindered by the first main body when inserting or pulling out the card holder, ensuring the smoothness and flexibility of the operation. The user can easily insert or pull out the card holder into or out of the accommodation slot by the handgrip, improving the operation efficiency and user experience. The smooth profile of the avoiding opening avoids scratching or hindering the user's hand during operation, improving the safety and comfort of product use.

[0022] In summary, the present application at least contains the following one beneficial effect:

[0023] 1. Can accommodate different types of cards at the same time, realizing the four-in-one function, greatly meeting the user's use demand for multiple cards (such as different types of SIM cards, memory cards, etc.), improving the storage and communication ability expansion of the electronic device, bringing greater convenience and flexibility to the user, especially suitable for smart phones, tablet computers and other portable electronic devices, so that the user does not need to use multiple single card holders, reducing the occupation of device space, optimizing the space layout inside the device.

[0024] 2. The linkage mechanism of the switch static sheet and the switch dynamic sheet on the second main body and the card holder provides an effective card holder state detection function for the device. When the card holder is inserted or pulled out of the accommodation slot, the switch dynamic sheet and the switch static sheet will be in contact or separated, so as to accurately judge the state of the card holder, avoid the system misjudgment, data reading error and communication interruption caused by the inability to effectively detect the state of the card holder in the prior art, improve the reliability and stability of the device, protect the normal reading of data and the normal communication of the device, and can flexibly control the related device function according to the state of the card holder, effectively avoid resource waste, prolong the service life of the device, and improve the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural diagram of a four-in-one card holder with a switch structure;

[0026] Figure 2 is an exploded view of a four-in-one card holder with a switch structure;

[0027] Figure 3 is a structural diagram of a card holder;

[0028] Figure 4 is a position diagram of the second card slot, the third card slot and the fourth card slot;

[0029] Figure 5 is a structural diagram of the second main body.

[0030] REFERENCE SIGNS

[0031] 1, first body; 2, second body; 3, accommodating groove; 4, card holder; 5, first card slot; 6, second card slot; 7, third card slot; 8, fourth card slot; 9, first terminal; 10, second terminal; 11, switch static sheet; 12, switch dynamic sheet; 13, first welding foot; 14, shell; 15, second welding foot; 16, first clamping piece; 17, second clamping piece; 18, positioning block; 19, positioning groove; 20, positioning mounting column; 21, avoiding opening; 22, buckle position. DETAILED DESCRIPTION

[0032] The application will be further described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1

[0034] In this embodiment, with reference to Figures 1-5 A four-in-one card holder with a switch structure comprises a first body 1 and a second body 2, the first body 1 and the second body 2 form an accommodating groove 3, the accommodating groove 3 is provided with a card holder 4, the card holder 4 is provided with a first card slot 5 in the side close to the first body 1, and the card holder 4 is provided with a second card slot 6, a third card slot 7 and a fourth card slot 8 in the side close to the second body 2; the first body 1 is provided with a first terminal 9, and the second body 2 is provided with a second terminal 10; the second body 2 is provided with a switch static sheet 11 and a switch dynamic sheet 12, and when the card holder 4 is installed in or separated from the accommodating groove 3, the switch dynamic sheet 12 will be in contact with or separated from the switch static sheet 11, thereby achieving the effect of effectively detecting the state of the card holder 4.

[0035] Specifically, the first body 1 can be made of metal material, such as stainless steel or aluminum alloy, so as to reduce the weight while ensuring the strength. The first terminal 9 provided on the first body 1 can be fixed on the surface thereof by welding or pressure bonding. The second body 2 can also be made of metal material, or high-strength plastic, such as ABS or PC (polycarbonate), so as to reduce the cost and improve the processing efficiency. The second terminal 10 provided on the second body 2 is also fixed on the surface thereof by welding or pressure bonding.

[0036] The switch static sheet 11 and the switch dynamic sheet 12 are key components for detecting the state of the card holder 4. The switch static sheet 11 can be a fixed metal sheet installed at a specific position inside the second body 2. The switch dynamic sheet 12 is a deformable metal sheet installed on the side of the second body 2 close to the card holder 4, and is pressed or released with the card holder 4. When the card holder 4 is completely inserted into the accommodating groove 3, the switch dynamic sheet 12 will be deformed and pushed to the switch static sheet 11, and the two are in contact, triggering the circuit signal and informing the system that the card holder 4 has been correctly installed. Conversely, when the card holder 4 is pulled out, the switch dynamic sheet 12 leaves the switch static sheet 11 by rebounding, and the circuit is disconnected, informing the system that the card holder 4 has been removed.

[0037] To ensure the stability and reliability of the card holder 4, the card holder 4 itself can be made of high-strength plastic, such as PA66 (Nylon 66) or PBT (polybutylene terephthalate). The four card slots on the card holder 4 are used to support different types of cards, such as SIM cards, microSD cards, etc. The inner wall of the card slot can be designed with anti-slip patterns to increase friction and prevent the card from loosening. At the same time, the entrance part of the card slot can be designed in a tapered shape to facilitate easy insertion of the card by the user.

[0038] The first body 1 and the second body 2 are fixed together by screws or buckles, etc., forming a stable structure. In some embodiments, the first body 1 can also be provided with a positioning block 18, and the second body 2 is correspondingly provided with a positioning groove 19, and the positioning block 18 can be embedded and installed in the positioning groove 19, further enhancing the stability of the structure. In addition, the positioning block 18 is provided with a guide inclined surface on the side close to the card holder 4, which facilitates the quick and accurate entry of the card holder 4 into the accommodating groove 3.

[0039] The second body 2 can also be provided with a plurality of positioning mounting columns 20 for connection and fixation with other components. These mounting columns can be distributed at different parts of the second body 2 to ensure that the entire card holder is stable and reliable when installed in the device.

[0040] To avoid inconvenience to the user during operation, the first body 1 is provided with a relief opening 21 for avoiding the finger position 22 of the card holder 4. The profile of this relief opening 21 is smoothly processed to avoid scratches or obstructions caused by sharp edges. In addition, the position and size of the relief opening 21 can be adjusted according to actual needs to adapt to different sizes of fingers.

[0041] The second body 2 is provided with a plurality of first soldering feet 13 near the slot opening of the accommodating groove 3, which are used to fix the position of the card holder in the device and ensure its firmness and reliability. The first body 1 is provided with a shell 14, the shell 14 is provided with a plurality of second soldering feet 15, the second body 2 is provided with a first clamping piece 16, the shell 14 is provided with a second clamping piece 17, the first clamping piece 16 cooperates with the second clamping piece 17 to clamp, and the second body 2 cooperates with the shell 14 to fix the first body 1. The first clamping piece 16 is provided with a plurality of second clamping pieces 17 corresponding to the first clamping piece 16, which further enhances the stability of the card holder.

[0042] The implementation principle of the embodiment is that the four-in-one card holder with a switch structure solves the problems existing in traditional multi-card holders through unique design. First, through the cooperation of the switch static sheet 11 and the switch dynamic sheet 12, the state of the card holder 4 is effectively detected, avoiding problems such as data reading errors or communication interruptions caused by incorrect installation of the card holder 4. Second, the multi-card slot design of the card holder 4 enables the card holder to be compatible with multiple types of cards, meeting the diversified needs of the market. Finally, through reasonable material selection and structural design, the durability and user experience of the card holder are improved.

[0043] Embodiment 2

[0044] The difference between this embodiment and the above-mentioned embodiments is that a waterproof function is added, suitable for outdoor environment use.

[0045] Specifically, the connection between the first body 1 and the second body 2 can be sealed with a sealing strip or rubber ring to prevent water intrusion. The first terminal 9 and the second terminal 10 can be made of materials with high waterproof grade, such as gold-plated copper, to improve corrosion resistance. In terms of material selection for the card holder 4, in addition to high-strength plastic, engineering plastics with good waterproof performance such as TPU (Thermoplastic Polyurethane Elastomer) or PVC (Polyvinyl Chloride) can also be considered. Waterproof gaskets can be added to the contact parts of the switch static sheet 11 and the switch dynamic sheet 12 to ensure normal operation even in humid environments.

[0046] The implementation principle of the embodiment is that the four-in-one card holder with a switch structure is improved by adding a waterproof function, enabling it to maintain good performance in harsh outdoor environments. The use of sealing strips and rubber rings effectively blocks the intrusion of external moisture, protecting the safety of the internal circuit. Waterproof gaskets and high waterproof grade materials further improve the weather resistance and reliability of the card holder. This improvement not only expands the application range of the card holder, but also significantly improves the service life and user satisfaction of the product.

[0047] Embodiment 3

[0048] The difference between this embodiment and the above-mentioned embodiments is that a temperature monitoring function is added, suitable for long-term operation in high-temperature environments.

[0049] Specifically, the material selection of the first body 1 and the second body 2 can focus more on heat dissipation performance, such as using aluminum-magnesium alloy or graphene composite materials. The design of the card holder 4 can increase ventilation holes to help dissipate heat. The first terminal 9 and the second terminal 10 can be made of low resistivity materials to reduce heating.

[0050] A temperature sensor is added to the second body 2 to monitor the temperature inside the card holder in real time. The temperature sensor can be installed near the card holder 4 to obtain more accurate temperature data. When the temperature exceeds the preset threshold, the temperature sensor sends a signal to the control unit to start the cooling measures, such as turning on the fan or reducing power consumption.

[0051] The implementation principle of this embodiment is that the four-in-one card holder with switch structure effectively solves the overheating problem in high temperature environment by adding temperature monitoring function. The selection of heat dissipation material and the design of ventilation hole help to dissipate the generated heat in time and keep the working temperature inside the card holder within a safe range. The introduction of temperature sensor enables the system to have intelligent monitoring capability, and once an abnormal situation is found, it can quickly take countermeasures to ensure the long-term stable operation of the equipment. This improvement not only improves the application range of the card holder, but also enhances the reliability and safety of the system.

[0052] Embodiment 4

[0053] The difference between this embodiment and the above-mentioned embodiments is that a shockproof function is added, which is suitable for environments with strong vibration, such as car navigation.

[0054] Specifically, the connection between the first body 1 and the second body 2 can use shock-absorbing materials such as silicone or sponge to absorb external vibration energy. The bottom of the card holder 4 can be designed as a spring support structure, which can play a buffering role when impacted, reducing the impact on the card holder 4 and the card. The first terminal 9 and the second terminal 10 can be connected by flexible cables, allowing a certain displacement and not breaking due to excessive stretching.

[0055] A shockproof bracket is added to the second body 2 to fix the card holder. The shockproof bracket can be in the form of a metal frame plus rubber pads, which can provide sufficient support and effectively isolate external vibrations. In addition, the positioning installation column 20 can be designed as a floating structure, allowing a certain degree of freedom to further improve the anti-vibration performance.

[0056] The implementation principle of this embodiment is that the four-in-one card holder with switch structure effectively solves the use problem in environments with strong vibration by adding a shockproof function. The use of shock-absorbing materials and spring support structures reduces the impact of external vibrations on internal components of the card holder, protecting the integrity of the card. The design of flexible cables and shockproof brackets further enhances the anti-vibration ability and stability of the card holder. This improvement not only broadens the application scenarios of the card holder, but also greatly improves its performance in dynamic environments.

[0057] Embodiment 5

[0058] The difference between this embodiment and the above-mentioned embodiments is that a modular design is added for easy maintenance and upgrade.

[0059] Specifically, the first body 1 and the second body 2 can be designed as separate modules, each of which can be replaced independently. For example, the card holder 4 can be designed as a drawer, which can be pulled out from the side, making it convenient for users to replace different card holders 4. The first terminal 9 and the second terminal 10 can be designed as plug-in interfaces, which can be installed and removed without welding. The switch static sheet 11 and the switch dynamic sheet 12 can be integrated into a small module, which can be directly inserted into the second body 2, simplifying the maintenance process.

[0060] A plurality of standardized interfaces are provided on the second body 2 for connecting various auxiliary modules such as power management modules and temperature monitoring modules. These interfaces can adopt universal standards such as USB-C or HDMI, facilitating third-party manufacturers to develop corresponding accessories. In addition, the positioning mounting column 20 can be designed as a quick-release form, which can be easily disassembled and assembled by pressing, improving the maintenance efficiency.

[0061] The implementation principle of the embodiment is that the four-in-one card holder with a switch structure greatly improves the convenience of maintenance and upgrading by increasing the modular design. The split structure and plug-in interface allow each component to be replaced independently, reducing maintenance costs. The design of standardized interfaces allows users to add different functional modules as needed, enhancing the flexibility and expandability of the card holder. This improvement not only improves the user-friendliness of the product, but also extends the product life cycle.

[0062] The embodiments of the specific embodiment are the preferred embodiments of the present application, but do not limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A four-in-one card holder with a switch structure, characterized in that, The device includes a first body (1) and a second body (2). The first body (1) and the second body (2) together form a receiving groove (3). A card holder (4) is provided in the receiving groove (3). The card holder (4) has a first card groove (5) recessed on the side near the first body (1). The card holder (4) has a second card groove (6), a third card groove (7) and a fourth card groove (8) recessed on the side near the second body (2). The first body (1) has a first terminal (9), and the second body (2) has a second terminal (10). The second body (2) has a switch stationary piece (11) and a switch moving piece (12). When the card holder (4) is installed into or detached from the receiving groove (3), the switch moving piece (12) will contact or separate from the switch stationary piece (11).

2. The four-in-one card holder with a switch structure according to claim 1, characterized in that, The second main body (2) is provided with a plurality of first welding feet (13) near the opening of the receiving groove (3).

3. A four-in-one card holder with a switch structure according to claim 1, characterized in that, The first body (1) is provided with a shell (14), the shell (14) is provided with a plurality of second welding feet (15), the second body (2) is provided with a first snap-fit ​​member (16), the shell (14) is provided with a second snap-fit ​​member (17), the first snap-fit ​​member (16) cooperates with the second snap-fit ​​member (17) to snap-fit, and the second body (2) cooperates with the shell (14) to fix the first body (1).

4. A four-in-one card holder with a switch structure according to claim 3, characterized in that, The first card connector (16) is provided in multiple ways, and the second card connector (17) is provided in multiple ways corresponding to the first card connector (16).

5. A four-in-one card holder with a switch structure according to claim 3, characterized in that, The first main body (1) is provided with a positioning block (18), and the second main body (2) is provided with a positioning groove (19). The positioning block (18) can be fitted into the positioning groove (19).

6. A four-in-one card holder with a switch structure according to claim 5, characterized in that, The positioning block (18) has a guide slope on the side near the card holder (4).

7. A four-in-one card holder with a switch structure according to claim 1, characterized in that, The second main body (2) is provided with multiple positioning and mounting posts (20).

8. A four-in-one card holder with a switch structure according to claim 1, characterized in that, The first body (1) is provided with an avoidance opening (21) to avoid the handle position (22) of the card tray (4). The outline of the avoidance opening (21) is smoothly set to avoid scratching or obstructing the user's hand during operation.

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