A double-layer SIM card seat

Abstract

The utility model relates to electronic equipment SIM card connecting accessory technical field, especially a double -deck SIM card seat, install in electronic equipment, its characterized in that, including SIM card seat and the circuit contact plate of embedding in the SIM card seat, the SIM card seat and circuit contact plate are integrated through injection molding process, the one side of SIM card seat has a plurality of welding parts, and the welding part is integrally connected with circuit contact plate, and the conductive part of welding part and electronic equipment is welded, the outer wall of SIM card seat is equipped with SIM outer cover, the circuit contact plate of the utility model is integrated through injection molding process with the SIM card seat, and is assembled through the SIM outer cover clamping again, and the stable structure, assembly simple and efficient can effectively improve production efficiency, can also improve the stable contact of SIM card and terminal, in addition, the SIM card seat adopts the upper and lower layer card slot design, can install two SIM cards simultaneously, compared with two independent single -deck card seat, greatly reduces the occupied space in electronic equipment, adapts to the light and thin development demand of equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of SIM card connection accessories for electronic devices, and in particular to a dual-layer SIM card holder. Background Technology

[0002] As smartphones, tablets, and other electronic devices become increasingly thinner and smaller, the internal components are arranged in a more compact layout. As a key component enabling communication functions, the SIM card slot's structural design directly impacts the device's space utilization and communication stability.

[0003] Traditional SIM card slots are mostly single-layer structures that can only accommodate a single SIM card. For devices that require dual SIM dual standby, two separate slots are needed, which takes up a lot of space and is not conducive to the miniaturization of the device. In addition, although some multi-layer SIM card slots can accommodate dual SIM cards, they have problems such as complex structure and cumbersome assembly. For example, most SIM connection terminals are soldered or assembled onto the SIM card slot, and their structure may be somewhat unstable. After frequently inserting and removing SIM cards, the connection between the SIM connection terminal and the SIM card slot may become loose, which may lead to poor contact between the SIM card and the terminal, and thus cause communication failure. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems in the prior art and provide a double-layer SIM card holder with a stable structure, simple and efficient assembly, which can effectively improve production efficiency, improve the stable contact between the SIM card and the terminal, and effectively reduce the space occupied by the SIM card holder in electronic devices.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A dual-layer SIM card holder is installed inside an electronic device, including a SIM card holder and a circuit contact plate embedded in the SIM card holder. The SIM card holder and the circuit contact plate are integrally formed by injection molding. One side of the SIM card holder has several welding parts, which are integrally connected to the circuit contact plate and welded to the conductive parts of the electronic device. A SIM card cover is fitted on the outer wall of the SIM card holder.

[0006] Preferably, the SIM card holder has an upper card slot at the top and a lower card slot at the bottom, with a plurality of front terminal holes and a plurality of rear terminal holes passing through between the upper card slot and the lower card slot.

[0007] Preferably, the upper and lower slots have a slightly convex surface in the middle, and a number of front terminal holes and a number of rear terminal holes are located on the front and rear sides of the slightly convex surface, respectively.

[0008] Preferably, the plurality of front terminal holes have 4 front central holes and 2 front symmetrical holes, the 4 front central holes are equidistantly distributed, and the 2 front symmetrical holes are located on the left and right sides of the 4 front central holes; the plurality of rear terminal holes have 4 rear central holes and 2 rear symmetrical holes, the 4 rear central holes are equidistantly distributed, and the 2 rear symmetrical holes are located on the left and right sides of the 4 rear central holes.

[0009] Preferably, the circuit contact plate further includes a circuit contact plate body, and a plurality of front elastic terminals and a plurality of rear elastic terminals integrally connected to the circuit contact plate body. The plurality of front elastic terminals and the plurality of rear elastic terminals are correspondingly disposed on the plurality of front terminal holes and the plurality of rear terminal holes, and the plurality of front elastic terminals and the plurality of rear elastic terminals are symmetrically arranged.

[0010] Preferably, the plurality of front elastic terminals include three upper front elastic terminals and three lower front elastic terminals, which are alternately arranged on four front central holes and two front symmetrical holes. The upper front elastic terminals are suspended in the upper slot, and the lower front elastic terminals are all suspended in the lower slot. The plurality of rear elastic terminals include three upper rear elastic terminals and three lower rear elastic terminals, which are alternately arranged on four rear central holes and two rear symmetrical holes. The upper rear elastic terminals are suspended in the upper slot, and the lower rear elastic terminals are suspended in the lower slot.

[0011] Preferably, the SIM card holder has an upward sloping part at the left corner of the upper card slot and a downward sloping part at the right corner of the lower card slot.

[0012] Preferably, the SIM outer cover is symmetrically provided with two upper abutment portions and two lower abutment portions corresponding to the front terminal hole and the rear terminal hole.

[0013] Preferably, the outer wall of the SIM card holder has card slots on the left and right sides for inserting the SIM card cover. Two limiting parts extend from the card slots on the left and right sides of the SIM card holder. Two card receiving slots connecting the card slots are opened on the left and right sides of the SIM card holder. The SIM card cover has a limiting groove that cooperates with the limiting parts and a card receiving part that engages with the card receiving slot. The bottom of the SIM card cover also has several mounting parts, through which the SIM card holder is installed in the electronic device.

[0014] Compared with the prior art, the dual-layer SIM card holder provided by this utility model has the following beneficial effects: This utility model integrates the circuit contact plate and SIM card holder through injection molding, and then attaches them together with the SIM card cover. Its structure is stable, and the assembly is simple and efficient, which can effectively improve production efficiency and avoid contact deviation caused by separate assembly, thus improving the stable contact between the SIM card and the terminal. In addition, the SIM card holder adopts an upper and lower card slot design, which can install two SIM cards at the same time. Compared with two independent single-layer card holders, it significantly reduces the space occupied in electronic devices and adapts to the development needs of thinner and lighter devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a double-layer SIM card holder according to the present invention; Figure 2 This is an exploded view of the structure of a double-layer SIM card holder according to the present invention; Figure 3 This is an exploded view of another structure of the dual-layer SIM card holder according to this utility model; Figure 4 This is a planar schematic diagram of a dual-layer SIM card holder according to the present invention; Figure 5 for Figure 4 Schematic diagram of section A in the diagram.

[0016] The diagram is labeled as follows: 1. SIM card slot; 11. Upper card slot; 12. Lower card slot; 13. Front terminal hole; 131. Front central hole; 132. Front symmetrical holes; 14. Rear terminal hole; 141. Rear central hole; 142. Rear symmetrical holes; 15. Micro-convex surface; 16. Upper slope; 17. Lower slope; 18. Card slot; 181. Limiting part; 182. Snap-fit ​​groove; 2. Circuit contact plate body; 21. Front elastic terminal; 211. Front upper elastic terminal; 212. Front lower elastic terminal; 22. Rear elastic terminal; 221. Rear upper elastic terminal; 222. Rear lower elastic terminal; 23. Welding part; 3. SIM outer cover; 31. Upper abutment part; 32. Lower abutment part; 33. Limiting groove; 34. Snap-fit ​​part; 35. Mounting part. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0019] Please see Figures 1-5 This utility model provides a technical solution: A dual-layer SIM card holder is installed inside an electronic device, including a SIM card holder 1 and a circuit contact plate. The SIM card holder 1 and the circuit contact plate are integrally formed by injection molding. This process can accurately embed the circuit contact plate inside the SIM card holder 1, avoiding positional deviations caused by subsequent assembly, and the structure is stable and reliable, which is conducive to the electrical conduction of the inserted SIM card. A number of soldering parts 23 extend from one side of the SIM card holder 1. All of the soldering parts 23 are integrally connected to the circuit contact plate. The soldering parts 23 are fixedly connected to the conductive parts of the main board of the electronic device by soldering, so as to realize the circuit conduction and thus realize the electrical conduction of the inserted SIM card.

[0020] The SIM card holder 1 has an upper card slot 11 and a lower card slot 12 at its top and bottom, respectively, for accommodating standard SIM cards. Six front terminal holes 13 and six rear terminal holes 14 pass through the upper card slot 11 and the lower card slot 12. Both the upper card slot 11 and the lower card slot 12 have an integrally formed micro-convex surface 15 in the middle. The six front terminal holes 13 and the six rear terminal holes 14 are located on the front and rear sides of the micro-convex surface 15, respectively, allowing the micro-convex surface 15 to abut against the inserted SIM card. The front terminal hole 13 consists of four front concentrated holes 131 and two front symmetrical holes 132. The four front concentrated holes 131 are equidistantly distributed, and the two front symmetrical holes 132 are located on the left and right sides of the four front concentrated holes 131 respectively. The structure of the rear terminal hole 14 is the same as that of the front terminal hole 13. The rear terminal hole 14 includes four rear central holes 141 and two rear symmetrical holes 142. The four rear central holes 141 are equidistantly distributed, and the two rear symmetrical holes 142 are located on the left and right sides of the four rear central holes 141 respectively. Each front terminal hole and each rear terminal hole are equipped with a corresponding flexible terminal to ensure that the terminal and the SIM card contact are precisely aligned.

[0021] Next, the circuit contact plate includes a circuit contact plate body 2, and 6 front elastic terminals 21 and 6 rear elastic terminals 22 integrally connected to the circuit contact plate body 2. The 6 front elastic terminals 21 and 6 rear elastic terminals 22 are symmetrically distributed and respectively disposed on the front terminal hole 13 and the rear terminal hole 14. The front elastic terminal 21 includes three front upper elastic terminals 211 and three front lower elastic terminals 212. The three front upper elastic terminals 211 and the three front lower elastic terminals 212 are alternately arranged on the front central hole 131 and the front symmetrical hole 132, respectively. The front upper elastic terminals 211 are suspended in the upper slot 11, and the front lower elastic terminals 212 are suspended in the lower slot 12. The rear elastic terminal 22 includes three upper rear elastic terminals 221 and three lower rear elastic terminals 222. The distribution of the three upper rear elastic terminals 221 and the three lower rear elastic terminals 222 is the same as that of the front elastic terminal 21. That is, the three upper rear elastic terminals 221 and the three lower rear elastic terminals 222 are alternately arranged on the rear central hole 141 and the rear symmetrical hole 142, respectively. The upper rear elastic terminals 221 are suspended in the upper card slot 11, and the lower rear elastic terminals 222 are suspended in the lower card slot 12. This ensures that the upper and lower SIM cards can make elastic contact with the corresponding terminals after insertion.

[0022] The front upper elastic terminal 211 and front lower elastic terminal 212 of the front elastic terminal 21, and the rear upper elastic terminal 221 and rear lower elastic terminal 222 of the rear elastic terminal 22 can form an elastic contact with the inserted SIM card and simultaneously achieve electrical conduction.

[0023] To facilitate SIM card insertion and removal, the SIM card holder 1 has an upper sloping part 16 at the left corner of the upper card slot 11 and a lower sloping part 17 at the right corner of the lower card slot 12. The upper sloping part 16 and the lower sloping part 17 have the same shape and can be adapted to the chamfer / cut corner of the SIM card.

[0024] As is necessary, the upper and lower surfaces of the upper sloping part 16 and the lower sloping part 17 are engraved with positive and negative indicators for SIM card insertion to facilitate correct SIM card insertion.

[0025] The outer wall of the SIM card holder 1 is fitted with a SIM outer cover 3. The outer cover is symmetrically provided with two upper abutment parts 31 and two lower abutment parts 32 corresponding to the positions of the front terminal hole 13 and the rear terminal hole 14. The two upper abutment parts 31 and two lower abutment parts 32 can abut the inserted SIM card, drive the SIM card to make stable contact with the elastic terminal, and further improve the stability of electrical conduction.

[0026] To facilitate the installation of the SIM card holder 1, card slots 18 are provided on both the left and right sides of the SIM card holder 1. Two limiting parts 181 extend from the edges of the card slots 18 on both the left and right sides of the SIM card holder 1. Two card receiving slots 182 connecting the card slots 18 are provided on both the left and right sides of the SIM card holder 1. Limiting grooves 33 that are adapted to the limiting parts 181 and card receiving parts 34 that engage with the card receiving slots 182 are provided on both sides of the SIM outer cover 3. During assembly, the outer cover is inserted along the card slots 18, and the limiting parts 181 simultaneously engage with the limiting grooves 33 to achieve pre-positioning. The card receiving parts 34 engage with the card receiving slots 182 as they are inserted to complete the fixation.

[0027] In addition, the bottom of the SIM outer cover 3 is integrally connected with four matrix-distributed mounting parts 35. The mounting parts 35 are installed inside the electronic device by welding or small bolts, which improves the overall installation stability.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dual-layer SIM card slot, installed inside an electronic device, characterized in that, The SIM card holder (1) and the circuit contact plate embedded in the SIM card holder (1) are integrally formed by injection molding. The SIM card holder (1) has several welding parts (23) on one side. The welding parts (23) are integrally connected with the circuit contact plate and welded to the conductive parts of the electronic device. The outer wall of the SIM card holder (1) is fitted with a SIM cover (3).

2. The double-layer SIM card seat according to claim 1, characterized in that, The SIM card holder (1) has an upper card slot (11) at the top and a lower card slot (12) at the bottom. Several front terminal holes (13) and several rear terminal holes (14) pass through the upper card slot (11) and the lower card slot (12).

3. The double-layer SIM card seat according to claim 2, characterized in that, The upper slot (11) and the lower slot (12) have a micro-convex surface (15) in the middle, and a number of front terminal holes (13) and a number of rear terminal holes (14) are located on the front and rear sides of the micro-convex surface (15), respectively.

4. The double-layer SIM card seat according to claim 2, characterized in that, The plurality of front terminal holes (13) have 4 front central holes (131) and 2 front symmetrical holes (132). The 4 front central holes (131) are equidistantly distributed, and the 2 front symmetrical holes (132) are located on the left and right sides of the 4 front central holes (131). The plurality of rear terminal holes (14) have 4 rear central holes (141) and 2 rear symmetrical holes (142). The 4 rear central holes (141) are equidistantly distributed, and the 2 rear symmetrical holes (142) are located on the left and right sides of the 4 rear central holes (141).

5. A dual-layer SIM card holder according to claim 1, characterized in that, The circuit contact plate also includes a circuit contact plate body (2), and a plurality of front elastic terminals (21) and a plurality of rear elastic terminals (22) integrally connected to the circuit contact plate body (2). The plurality of front elastic terminals (21) and the plurality of rear elastic terminals (22) are respectively disposed on a plurality of front terminal holes (13) and a plurality of rear terminal holes (14), and the plurality of front elastic terminals (21) and the plurality of rear elastic terminals (22) are symmetrically arranged.

6. The double-layer SIM card seat according to claim 5, characterized in that, The plurality of front elastic terminals (21) include three front upper elastic terminals (211) and three front lower elastic terminals (212). The three front upper elastic terminals (211) and three front lower elastic terminals (212) are alternately arranged on four front central holes (131) and two front symmetrical holes (132). The front upper elastic terminals (211) are suspended in the upper slot (11), and the front lower elastic terminals (212) are all suspended in the lower slot (12). The plurality of rear elastic terminals (22) include three rear upper elastic terminals (221) and three rear lower elastic terminals (222). The three rear upper elastic terminals (221) and three rear lower elastic terminals (222) are alternately arranged on four rear central holes (141) and two rear symmetrical holes (142). The rear upper elastic terminals (221) are suspended in the upper slot (11), and the rear lower elastic terminals (222) are suspended in the lower slot (12).

7. The double-layer SIM card seat according to claim 1, characterized in that, The SIM card holder (1) has an upper sloping part (16) located at the left corner of the upper card slot (11), and a lower sloping part (17) located at the right corner of the lower card slot (12).

8. The double-layer SIM card seat according to claim 1, characterized in that, The SIM outer cover (3) is symmetrically provided with two upper abutment parts (31) and two lower abutment parts (32) corresponding to the front terminal hole (13) and the rear terminal hole (14).

9. A dual-layer SIM card holder according to claim 1, characterized in that, The SIM card holder (1) has card slots (18) for inserting the SIM card cover (3) on the left and right sides of its outer wall. Two limiting parts (181) extend from the card slots (18) on the left and right sides of the SIM card holder (1). Two card slots (182) for connecting the card slots (18) are opened on the left and right sides of the SIM card holder (1). The SIM card cover (3) has a limiting groove (33) that cooperates with the limiting part (181) and a card slot (34) that cooperates with the card slot (182). The bottom of the SIM card cover (3) also has several mounting parts (35). The SIM card holder (1) is installed in the electronic device through the mounting parts (35).

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