Electronic equipment
By driving the SIM card to reciprocate along the insertion and removal direction using a driving component, the oxide layer on the SIM card contacts and the card holder contacts is removed, solving the problem of poor contact between the SIM card and the card holder, ensuring normal internet access for the device, and reducing maintenance costs.
Patent Information
- Application Number
- CN202422939754.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Poor contact between the SIM card and the card slot can prevent the device from accessing the internet properly, and this problem is particularly difficult to resolve when oxidation is severe in outdoor environments.
Design an electronic device comprising a SIM card and a card holder. A driving component drives the SIM card to reciprocate in the insertion/removal direction, causing the SIM card contacts to rub against the card holder contacts, removing the oxide layer and ensuring electrical connection.
It effectively solves the problem of poor contact between the SIM card and the card slot, reduces the risk of device offline, lowers operating and maintenance costs, and improves device reliability.
Smart Images
Figure CN223898633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobile communication technology, and in particular to an electronic device. Background Technology
[0002] A SIM (Subscriber Identity Module) card is an IC card held by mobile users in the GSM system, also called a user identification card. A SIM card slot is a device used to read SIM card information; only when the SIM card and slot make good contact can the device access the internet normally. If the device has poor airtightness and operates outdoors for extended periods, the surfaces of the SIM card contacts and the slot contacts may oxidize, leading to poor contact and preventing the device from accessing the internet.
[0003] Therefore, maintaining good contact between the SIM card and the card slot is an urgent problem that the industry needs to solve. Utility Model Content
[0004] This invention provides an electronic device to solve the problem of poor contact between the SIM card and the card slot in the prior art.
[0005] This utility model provides an electronic device, comprising:
[0006] A SIM card and a card holder, wherein the SIM card is detachably inserted into the card slot of the card holder, so that the SIM card contacts abut against the card holder contacts;
[0007] A driving component, which abuts against or connects to the SIM card, is used to drive the SIM card to reciprocate along the insertion / removal direction, so that the SIM card contacts rub against the card holder contacts.
[0008] According to the electronic device provided by this utility model, the cover plate of the card holder has a skylight; the driving component includes:
[0009] A connecting component, located outside the card holder, passing through the skylight and abutting against the SIM card;
[0010] A driving component, connected to the connecting component, is used to drive the SIM card to reciprocate along the insertion / removal direction via the connecting component.
[0011] According to the electronic device provided by this utility model, the driving component further includes:
[0012] A rotating shaft, one end of which is connected to the driving component, and the other end of which extends along a first direction and is connected to the connecting component, wherein the first direction is perpendicular to the insertion / removal direction; the driving component drives the connecting component to rotate around the first direction via the rotating shaft, thereby causing the SIM card to reciprocate along the insertion / removal direction.
[0013] According to the electronic device provided by this utility model, the connecting component includes a rubber ring; along the first direction, the rubber ring has a mounting hole, the mounting hole is interference-fitted with the rotating shaft, and the outer side of the rubber ring abuts against the SIM card.
[0014] The electronic device provided by this utility model further includes:
[0015] The control unit is electrically connected to the drive component and is used to control the drive component to start or stop.
[0016] The electronic device provided by this utility model further includes:
[0017] The presence detection unit has an input terminal electrically connected to the SIM card and an output terminal electrically connected to the control unit, and is used to detect the electrical connection between the SIM card contacts and the card holder contacts.
[0018] According to the electronic device provided by this utility model, the in-situ detection unit includes an in-situ detection circuit, the in-situ detection circuit comprising:
[0019] Comparator U1, model number LMV321A_TR; the first pin of comparator U1 is electrically connected to the SIM card; the second pin of comparator U1 is grounded; the third pin of comparator U1 is connected to the reference power supply; the fourth pin of comparator U1 is electrically connected to the input terminal of the control unit; and the fifth pin of comparator U1 is electrically connected to the power supply.
[0020] According to the electronic device provided by this utility model, the in-situ detection circuit further includes:
[0021] A filter capacitor C1 is provided, with one end grounded and the other end electrically connected to the fifth pin of the comparator U1.
[0022] The electronic device provided by this utility model further includes a driving circuit; the driving circuit includes:
[0023] The driver chip U2, model number DRV8837DSGR, has its eighth pin electrically connected to the power supply, its ninth pin grounded, its fifth and sixth pins electrically connected to the output of the control unit, its first pin electrically connected to the power supply, its fourth pin grounded, and its second and third pins electrically connected to the drive component.
[0024] According to the electronic device provided by this utility model, the cover plate of the card holder has heat dissipation holes; the heat dissipation holes are connected to the card slot.
[0025] The electronic device provided by this utility model, by setting a driving component that abuts or connects to the SIM card, can drive the SIM card by operating the driving component, causing the SIM card to reciprocate in the insertion and removal direction. This causes the contact points of the abutting SIM card to rub against the contacts of the card holder, removing the oxide layer on the surface of the SIM card contacts and the card holder contacts, ensuring effective electrical connection between the SIM card contacts and the card holder contacts. This solves the problem of poor contact between the SIM card and the card holder in the prior art, thereby solving the offline problem caused by poor contact. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0027] Figure 1 This is one of the structural schematic diagrams of the electronic device provided by this utility model.
[0028] Figure 2 This is the second structural schematic diagram of the electronic device provided by this utility model.
[0029] Figure 3 This is the third schematic diagram of the electronic device provided by this utility model.
[0030] Figure 4 This is the fourth structural schematic diagram of the electronic device provided by this utility model.
[0031] Figure 5 This is a schematic diagram of the in-situ detection circuit of the electronic device provided by this utility model.
[0032] Figure 6 This is a schematic diagram of the drive circuit of the electronic device provided by this utility model.
[0033] Figure label:
[0034] 100. SIM card;
[0035] 200. Card slot; 210. Insulating body; 220. Cover plate; 221. Skylight; 222. Heat dissipation hole;
[0036] 300. Drive component; 310. Connecting assembly; 320. Drive assembly; 330. Rotating shaft;
[0037] 400. Control unit;
[0038] 500. In-situ detection unit;
[0039] 600. Drive circuit. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0041] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0043] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0045] like Figures 1 to 3 As shown in the figure, a specific embodiment of this utility model provides an electronic device. The electronic device includes a SIM card 100, a card holder 200, and a driving component 300. The SIM card 100 is detachably inserted into the card slot of the card holder 200, causing the SIM card contacts to abut against the card holder contacts. The driving component 300 abuts against or connects to the SIM card 100, and is used to drive the SIM card 100 to reciprocate along the insertion / removal direction, causing the SIM card contacts to rub against the card holder contacts.
[0046] In this embodiment, by providing a driving component 300 that abuts or connects to the SIM card 100, the SIM card 100 can be driven by operating the driving component 300, causing the SIM card 100 to reciprocate in the insertion / removal direction. This causes the contact points of the abutting SIM card to rub against the contacts of the card holder, removing the oxide layer on the surface of the SIM card contacts and the card holder contacts, ensuring effective electrical connection between the SIM card contacts and the card holder contacts. This solves the problem of poor contact between the SIM card and the card holder in the prior art, thereby solving the offline problem caused by poor contact.
[0047] In some embodiments, the card holder 200 includes an insulating body 210 and a cover plate 220; the cover plate 220 is locked to the insulating body 210 to form a card slot; a SIM card 100 is removably installed in the card slot.
[0048] Furthermore, the cover plate 220 has heat dissipation holes 222, which are connected to the card slot. The heat dissipation holes 222 help to dissipate heat from the SIM card 100.
[0049] In some embodiments, the driving end of the driving component 300 is connected to one end of the SIM card 100 to drive the SIM card 100 to reciprocate in the insertion / removal direction. It is understood that the driving end of the driving component 300 and the SIM card 100 can be either fixedly connected or detachably connected.
[0050] Specifically, the driving end of the driving component 300 reciprocates along the insertion and removal direction, and the driving end of the driving component 300 is glued to one end of the SIM card 100.
[0051] Specifically, the driving end of the driving component 300 reciprocates along the insertion / removal direction. The driving end of the driving component 300 is detachably connected to the SIM card 100 via a detachable connection structure, allowing the SIM card 100 to be replaced as needed. Preferably, the detachable connection structure includes a first connector and a second connector; the first connector and the second connector are detachably connected; the first connector is disposed on the SIM card 100, and the second connector is disposed on the driving end of the driving component 300.
[0052] Preferably, the detachable connection structure is a snap-fit structure. Snap-fit structures are existing technology and will not be described in detail here.
[0053] In some other embodiments, the cover plate 220 of the card holder 200 has a window 221; the driving component 300 includes a connecting component 310 and a driving component 320; the connecting component 310 is located on the outside of the card holder 200, and passes through the window 221 to abut against the SIM card 100. The driving component 320 is connected to the connecting component 310 and is used to drive the SIM card 100 to reciprocate in the insertion / removal direction through the connecting component 310. By opening the window 221 on the cover plate 220, installing the connecting component 310 on the outside of the card holder 200, and having the connecting component 310 pass through the window 221 to abut against the SIM card 100, it is possible to avoid modifying the structure of the SIM card 100, ensuring the integrity of the SIM card 100, and facilitating the replacement of the SIM card 100.
[0054] Furthermore, the driving component 320 drives the connection component 310 to reciprocate along the insertion and removal direction, and the connection component 310 drives the SIM card 100 to reciprocate along the insertion and removal direction through the friction between the connection component 310 and the SIM card 100.
[0055] Preferably, the drive assembly 320 can be a miniature electric telescopic rod or a linear cylinder.
[0056] Preferably, the drive component 320 may also be other gear and rack structures that enable the connection component 310 to reciprocate along the insertion / removal direction.
[0057] Furthermore, the driving component 300 also includes a rotating shaft 330; one end of the rotating shaft 330 is connected to the driving component 320, and the other end extends along a first direction and is connected to the connecting component 310, the first direction being perpendicular to the insertion / removal direction. The driving component 320 drives the connecting component 310 to rotate around the first direction via the rotating shaft 330, causing the SIM card 100 to reciprocate along the insertion / removal direction. By providing a rotating shaft 330 extending along the first direction, and in conjunction with the connecting component 310 that abuts against the SIM card 100, the rotational motion of the driving component 320 can be converted into the linear motion of the SIM card 100, resulting in a simple structure and operation.
[0058] Furthermore, the drive assembly 320 includes a motor or a rotary cylinder.
[0059] Furthermore, the connecting component 310 includes a rubber ring; along the first direction, the rubber ring has a mounting hole, and the rotating shaft 330 is installed in the mounting hole with an interference fit between the rotating shaft 330 and the mounting hole, and the outer surface of the rubber ring abuts against the SIM card 100. By setting the rubber ring, the static friction between the rubber ring and the SIM card 100 can be increased, ensuring that the SIM card 100 can reciprocate in the insertion and removal direction as the drive component 320 rotates.
[0060] In related technologies, two methods are typically used to solve the problem of poor contact between the SIM card and the SIM card slot probes. One method involves manually removing the SIM card from the slot and then manually cleaning the oxide layer on the SIM card contacts and the SIM card slot contacts with an eraser or alcohol. However, given that 4G cameras and solar energy products are often installed in remote areas, requiring long distances and the need to rent aerial work platforms, and considering that manual cleaning doesn't fundamentally solve the problem, requiring SIM card insertion and removal every time a problem occurs, the operating and maintenance costs are too high. The other method is to use an eSIM card. An eSIM card is an electronic SIM card, a data file that can be downloaded to the mobile terminal via the network, and functionally identical to a regular SIM card. However, eSIM cards have lower adoption rates, and customers cannot easily replace them themselves, which is a significant limitation.
[0061] like Figure 4 As shown, in some embodiments, the electronic device further includes a control unit 400; the control unit 400 is electrically connected to the drive component 300 and is used to control the drive component 300 to start or stop. By setting the control unit 400 electrically connected to the drive component 300, the start and stop of the drive component 300 can be controlled remotely, reducing the operation and maintenance costs of the electronic device and overcoming the limitations of using an ESIM card.
[0062] Furthermore, the control unit 400 can periodically control the drive component 300 to start, and can periodically remove the oxide layer on the surface of the SIM card contacts and card holder contacts.
[0063] Furthermore, the electronic device also includes an in-situ detection unit 500; the input terminal of the in-situ detection unit 500 is electrically connected to the SIM card 100, and the output terminal of the in-situ detection unit 500 is electrically connected to the control unit 400, used to detect the electrical connection between the SIM card contacts and the card holder contacts. If the in-situ detection unit 500 detects poor contact between the SIM card contacts and the card holder contacts, it outputs a poor contact signal. The control unit 400 outputs a start control command based on the poor contact signal to control the drive component 300 to start, thereby driving the SIM card 100 to reciprocate in the insertion / removal direction. If the in-situ detection unit 500 detects good contact between the SIM card contacts and the card holder contacts, it outputs a good contact signal. The control unit 400 outputs a stop control command based on the good contact signal to control the drive component 300 to stop or maintain the drive component 300 in a stopped state.
[0064] Specifically, both poor contact signals and good contact signals can be level signals.
[0065] For example, a poor contact signal is a high level, while a good contact signal is a low level.
[0066] like Figure 5 As shown, the presence detection unit 500 further includes a presence detection circuit, which includes a comparator U1. The comparator U1 is an LMV321A_TR. The first pin of the comparator U1 is electrically connected to the SIM card 100; the second pin of the comparator U1 is grounded; the third pin of the comparator U1 is connected to a reference power supply; the fourth pin of the comparator U1 is electrically connected to the input terminal of the control unit 400; and the fifth pin of the comparator U1 is electrically connected to the power supply. When the SIM card contacts and the card slot contacts are in good contact, that is, when the SIM card 100 is communicating normally with the 4G module, the first pin of the comparator U1 is powered normally, the fourth pin of the comparator U1 outputs a high level, and the control unit 400 outputs a stop control command to control the driving component 300 to stop or maintain the driving component 300 in a stopped state. When the SIM card contacts and the card holder contacts do not make good contact, that is, when the SIM card 100 fails to communicate with the 4G module, the first pin of the comparator U1 drops to 0V, the fourth pin of the comparator U1 outputs a low level, and the control unit 400 outputs a start control command to control the drive component 300 to start, thereby driving the SIM card 100 to reciprocate in the insertion and removal direction.
[0067] like Figure 5 As shown, the presence detection circuit further includes a filter capacitor C1; one end of the filter capacitor C1 is grounded, and the other end is electrically connected to the fifth pin of the comparator U1. The filter capacitor C1 serves to filter and stabilize the circuit.
[0068] like Figure 4 and Figure 6 As shown, the electronic device further includes a drive circuit 600, which includes a drive chip U2. The drive chip U2 is model DRV8837DSGR. The eighth pin of the drive chip U2 is electrically connected to the power supply, the ninth pin of the drive chip U2 is grounded, the fifth and sixth pins of the drive chip U2 are both electrically connected to the output terminal of the control unit 400, the first pin of the drive chip U2 is electrically connected to the power supply, the fourth pin of the drive chip U2 is grounded, and the second and third pins of the drive chip U2 are both electrically connected to the drive component 300. By adjusting the input signals of the fifth and sixth pins of the drive chip U2, different control signals can be output from the second and third pins, thereby controlling the drive component 300 to rotate forward and reverse or to reciprocate along the insertion plate direction.
[0069] Specifically, the second and third pins of the driver chip U2 are both electrically connected to the motor, controlling its forward and reverse rotation. The motor's rotation direction control logic is shown in Table 1.
[0070] Table 1 Motor rotation direction control logic
[0071] DRIVER_IN1 DRIVER_IN2 DRIVER_OUT1 DRIVER_OUT2 motor 0 1 L H clockwise 1 0 H L counterclockwise 1 1 L L still
[0072] In Table 1, 0 and 1 represent binary. L represents low level and H represents high level.
[0073] Specifically, when the SIM card contacts and the card slot contacts are not making good contact, that is, when the SIM card 100 fails to communicate with the 4G module, the first pin of the comparator U1 drops to 0V, the fourth pin of the comparator U1 outputs a low level, the control unit 400 receives the warning signal ALERT_SIM_N, and the control unit 400 communicates with the drive circuit 600 to realize the forward and reverse rotation of the motor.
[0074] Optionally, when the motor rotates clockwise, the rubber ring pushes the SIM card 100 out of the card slot. After a time threshold, the motor reverses direction, and the rubber ring pulls the SIM card 100 back into the card slot, returning it to its initial position. This process is repeated until the SIM card 100 successfully re-establishes communication with the 4G module.
[0075] The following is combined Figure 4 , Figure 5 and Figure 6 The usage process of the electronic device of this utility model is described in detail.
[0076] When SIM card 100 communicates normally with the 4G module, the USIM_VDD power supply is normal, the fourth pin of comparator U1 outputs a high level, and the motor does not rotate.
[0077] When SIM card 100 fails to communicate with the 4G module, USIM_VDD drops to 0V, the fourth pin of comparator U1 outputs a low level, and after the control unit 400 receives the alarm signal ALERT_SIM_N, it communicates with the drive circuit 600 to realize the forward and reverse rotation of the motor.
[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An electronic device, characterized in that, include: SIM card (100) and card holder (200), wherein the SIM card (100) is detachably inserted into the card slot of the card holder (200) so that the SIM card contacts abut against the card holder contacts; A driving component (300) abuts or connects to the SIM card (100) and is used to drive the SIM card (100) to reciprocate along the insertion and removal direction, so that the SIM card contacts rub against the card holder contacts.
2. The electronic device according to claim 1, characterized in that, The cover plate (220) of the card holder (200) has a skylight (221); the drive component (300) includes: A connecting component (310) is located outside the card holder (200) and abuts against the SIM card (100) through the skylight (221); A driving component (320), connected to the connecting component (310), is used to drive the SIM card (100) to reciprocate along the insertion / removal direction via the connecting component (310).
3. The electronic device according to claim 2, characterized in that, The drive component (300) further includes: A rotating shaft (330) is provided, one end of which is connected to the driving component (320), and the other end extends along a first direction and is connected to the connecting component (310), wherein the first direction is perpendicular to the insertion / removal direction; the driving component (320) drives the connecting component (310) to rotate around the first direction through the rotating shaft (330), thereby causing the SIM card (100) to reciprocate along the insertion / removal direction.
4. The electronic device according to claim 3, characterized in that, The connecting component (310) includes a rubber ring; along the first direction, the rubber ring has a mounting hole, the mounting hole is interference-fitted with the rotating shaft (330), and the outer side of the rubber ring abuts against the SIM card (100).
5. The electronic device according to claim 1, characterized in that, Also includes: The control unit (400) is electrically connected to the drive component (300) and is used to control the drive component (300) to start or stop.
6. The electronic device according to claim 5, characterized in that, Also includes: An in-situ detection unit (500) is configured to detect the electrical connection between the SIM card (100) and the control unit (400), with the input terminal of the in-situ detection unit (500) being electrically connected to the SIM card (100) and the output terminal of the in-situ detection unit (500) being electrically connected to the control unit (400).
7. The electronic device according to claim 6, characterized in that, The in-situ detection unit (500) includes an in-situ detection circuit, which includes: Comparator U1, model number LMV321A_TR; the first pin of comparator U1 is electrically connected to the SIM card (100); the second pin of comparator U1 is grounded; the third pin of comparator U1 is connected to the reference power supply; the fourth pin of comparator U1 is electrically connected to the input terminal of the control unit (400); the fifth pin of comparator U1 is electrically connected to the power supply.
8. The electronic device according to claim 7, characterized in that, The in-situ detection circuit further includes: A filter capacitor C1 is provided, with one end grounded and the other end electrically connected to the fifth pin of the comparator U1.
9. The electronic device according to claim 5, characterized in that, It also includes a driving circuit (600); the driving circuit (600) includes: The driver chip U2 is model DRV8837DSGR; the eighth pin of the driver chip U2 is electrically connected to the power supply, the ninth pin of the driver chip U2 is grounded, the fifth and sixth pins of the driver chip U2 are both electrically connected to the output terminal of the control unit (400), the first pin of the driver chip U2 is electrically connected to the power supply, the fourth pin of the driver chip U2 is grounded, and the second and third pins of the driver chip U2 are both electrically connected to the driving component (300).
10. The electronic device according to any one of claims 1 to 9, characterized in that, The cover plate (220) of the card holder (200) has heat dissipation holes (222); the heat dissipation holes (222) are connected to the card slot.