Plastic terminal assembly of SIM card and card seat connector

Abstract

The utility model discloses an SIM card plastic cement terminal assembly and a card seat connector, the SIM card plastic cement terminal assembly comprises a card support body, the front side of the card support body is provided with a first card slot for bearing an SD card and a second card slot for bearing a first SIM card, the back side is provided with a third card slot for bearing a second SIM card, and the second card slot and the third card slot are transversely distributed; the first clamping grooves are vertically distributed and horizontally penetrate through the second clamping grooves; the middle layer of the card holder body is provided with a middle layer partition plate for isolating the front side card slot from the back side card slot; the second card slot and the third card slot are both arranged in a front-back inclined manner, and at least one side arm of the first card slot, the second card slot and the third card slot is provided with an elastic jacking arm for clamping a corresponding communication card. According to the utility model, the elastic arm length of the terminal can be prolonged, the stability of electrical connection with the communication card is improved, and the service life of the card seat connector is prolonged.

Description

[Technical field]

[0001] The utility model belongs to the technical field of card socket connectors, in particular to a plastic terminal component of a SIM card and a card socket connector. [Background technology]

[0002] Smartphones have become an important tool in people's lives and work. With the diversified functional design of smart phones, in order to achieve more functions, the number of electronic functional components on the mobile phone motherboard is increasing. Under the premise of ensuring the diversification of functions, the miniaturization design of mobile phones is realized, and the size of communication cards is gradually tending to be miniaturized. The commonly used communication cards on the market are SIM cards, and they are smaller Nano SIM cards. Therefore, the card connector also needs to have corresponding plastic terminal components to achieve electrical signal connection with the SIM card.

[0003] In the prior art, the structure of the plastic terminal assembly used to realize the electrical signal connection of the SIM card is mostly adopted as follows: Figure 1 The structures shown, such as a card accommodating device and an electronic device disclosed in patent publication number CN116435815A, and a card holder, a card tray and an electronic device disclosed in patent publication number CN219350725U, have a short elastic arm length of the terminal and a cantilever structure, and the stability and service life of the electrical connection are not ideal.

[0004] Therefore, it is necessary to provide a new plastic terminal assembly and card socket connector for a SIM card to solve the above technical problems. [Contents of the utility model]

[0005] The main purpose of the utility model is to provide a plastic terminal assembly for a SIM card, which can extend the elastic arm length of the terminal, improve the electrical connection stability with the communication card, and increase the service life of the card socket connector.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a plastic terminal assembly of a SIM card, comprising a plastic body and a plurality of first conductive terminals embedded in the plastic body and electrically connected to the SIM card; the middle parts of all the first conductive terminals are arched upward to form contact protrusions corresponding to the pin points on the SIM card; both ends of the first conductive terminals are pressed into the plastic body, and the first conductive terminals extend along the long side direction of the plastic terminal assembly and are obliquely arranged at an angle to the long side direction.

[0007] Furthermore, it also includes a plurality of second conductive terminals embedded in the plastic body and electrically connected to the SD card, and the connection module formed by the first conductive terminals and the connection module formed by the second conductive terminals are distributed front to back along the long side direction of the plastic terminal assembly.

[0008] Furthermore, a connecting terminal is embedded in the plastic body; one end of the first conductive terminal is a free end and the other end is integrally connected to the connecting terminal; the connecting terminal connects all the first conductive terminals as a whole before injection molding, and the connecting terminal is provided with a plurality of fractures formed by punching during the injection molding process or after injection molding, and each of the first conductive terminals is divided into an independent terminal module through the fracture, and each of the independent terminal modules is provided with a welding portion.

[0009] Furthermore, a punching cutout corresponding to the position of the fracture is formed on the plastic body.

[0010] Furthermore, the connecting terminal includes a first connecting terminal, the first connecting terminal includes a pair of first long side extension sections extending along the long side direction of the plastic terminal assembly and a pair of first short side extension sections extending along the short side direction of the plastic terminal assembly, the pair of first long side extension sections and the pair of first short side extension sections constitute a rectangular frame structure, the fracture openings are distributed on the four sides of the rectangular frame structure; the welding portion extends inward from the frame of the rectangular frame structure; all of the first conductive terminals are divided into two rows and distributed on both sides of the long sides of the rectangular frame structure.

[0011] Furthermore, the connecting terminal includes a second connecting terminal; the second connecting terminal includes a second short side extension segment connected to the root of each first conductive terminal and a plurality of second long side extension segments connected one by one to the ends of the second short side extension segments; the ends of each second long side extension segment uniformly extend to the rear side of the plastic body and form the welding portion, and two adjacent second long side extension segments have multiple connection points before injection molding so that the second connecting terminal is an integral structure; the connection points are located at the fracture opening formed by punching during or after injection molding.

[0012] Furthermore, the second card slot and the third card slot are both arranged to avoid the hollow notch and are located in the front half area of ​​the card tray.

[0013] Another object of the present invention is to provide a socket connector, which includes the plastic terminal assembly as described above.

[0014] The beneficial effects of the plastic terminal assembly and the card socket connector of a SIM card of the utility model are as follows: by extending the conductive terminal electrically connected to the SIM card along the long side direction of the plastic terminal assembly, the elastic arm of the conductive terminal has sufficient extension space in the long side direction, thereby increasing the length of the elastic arm, improving the stability of the electrical connection with the SIM card and the service life of the card socket connector; in addition, by obliquely arranging the conductive terminal electrically connected to the SIM card, the conductive terminals can be staggered with each other without interfering with each other, while at the same time ensuring that the contact protrusion on each conductive terminal is maintained at the set matrix position point.

Brief Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of a SIM card plastic terminal assembly in the prior art;

[0016] Figure 2 This is a schematic diagram of the top view of the SIM card plastic terminal assembly in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure in which the SIM card is arranged horizontally in the embodiment of the utility model;

[0018] Figure 4 This is a structural schematic diagram of an integrated multi-card plastic terminal assembly in an embodiment of the utility model;

[0019] Figure 5 This is a schematic structural diagram of a first conductive terminal and a first connecting terminal in a plastic terminal assembly for an integrated multi-card according to an embodiment of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the upper connection terminal module in the embodiment of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the first conductive terminal and the second connecting terminal in the upper connecting terminal module of the embodiment of the utility model;

[0022] The numbers in the figure represent:

[0023] 100-Plastic terminal assembly of SIM card;

[0024] 200-SIM card, 201-pin point; 300-plastic terminal assembly for integrated multi-card; 400-upper connection terminal module;

[0025] 1- plastic body, 11- first punching cut, 12- second punching cut;

[0026] 2-first conductive terminal, 21-contact protrusion; 3-second conductive terminal; 4-first connecting terminal, 41-first long side extension section, 42-first short side extension section, 43-first fracture, 44-first welding portion; 5-second connecting terminal, 51-second short side extension section, 52-second long side extension section, 53-second welding portion, 54-second fracture. [Specific implementation method]

[0027] Embodiment 1:

[0028] Please refer to Figure 1-Figure 7 The present embodiment is a plastic terminal assembly 100 for a SIM card, which includes a plastic body 1 and a plurality of first conductive terminals 2 embedded in the plastic body 1 and electrically connected to the SIM card; the middle portions of all the first conductive terminals 2 are arched upward to form contact protrusions 21 corresponding to the pin points on the SIM card, and both ends of the first conductive terminals 2 are pressed into the plastic body 1.

[0029] In a card socket connector with multiple card slots, such as a three-in-two integrated card connector, a three-in-two stacked card connector, a three-in-one integrated card connector or a three-in-one stacked card connector, in order to save space, the SIM card 200 is generally placed horizontally in the card socket connector, that is, parallel to the short side direction of the plastic terminal assembly. Therefore, the pin points 201 on the SIM card 200 are distributed as follows: Figure 3 As shown, the distribution of the conductive terminals electrically connected to the SIM card 200 also needs to be configured and designed in accordance with the distribution position of the pin points 201, and the contact protrusions 21 need to be distributed in a 3×2 matrix. Since the short side length of the card socket connector is limited, if two conductive terminals are arranged in the short side direction, the elastic arm length of the conductive terminals cannot reach a longer length, resulting in too small a reduction. In addition, when the same layer of plastic terminal modules needs to bear the electrical connection function of two communication cards, such as Figure 1 The conductive terminals in the SIM card plastic terminal assembly shown are difficult to integrate with the conductive terminals in the SD card plastic terminal assembly or the conductive terminals in another SIM card plastic terminal assembly on the same material strip, and thus cannot be obtained by one-time injection molding. Therefore, for an electrical connection module with two communication cards in the same layer of plastic terminal module, two independent plastic terminal modules are generally used. For example, as shown in the "first plastic terminal" and the "second plastic terminal" in the patent publication number CN213367837U in the prior art, not only two sets of injection molds are required, but also two mounting operations are required when mounting on the PCB board, which increases the number of process steps.

[0030] Therefore, in order to extend the length of the elastic arm of the first conductive terminal 2, increase the drop and thus improve the electrical connection stability with the SIM card, the first conductive terminal 2 is extended along the long side direction of the plastic terminal assembly and is arranged at an angle with the long side direction. By arranging the first conductive terminal 2 as a whole obliquely, each first conductive terminal 2 can be staggered in the length direction. The first conductive terminal 2 extends along the long side direction of the plastic terminal assembly, so that the elastic arm of the conductive terminal has sufficient extension space in the long side direction, thereby increasing the length of the elastic arm; in addition, by arranging obliquely, each conductive terminal can be staggered without interfering with each other, but at the same time, it can ensure that each contact protrusion 21 is kept at the set matrix position point.

[0031] This embodiment shows a usage scenario of the plastic terminal assembly 100 of a SIM card, such as Figure 4 As shown, it is integrated with the SD card plastic terminal assembly to form an integrated multi-card plastic terminal assembly 300, which includes a plastic body 1, a plurality of first conductive terminals 2 embedded in the plastic body 1 and electrically connected to the SIM card, and a plurality of second conductive terminals 3 embedded in the plastic body 1 and electrically connected to the SD card. The connection module formed by the first conductive terminals 2 and the connection module formed by the second conductive terminals 3 are distributed front and back along the long side direction of the plastic terminal assembly. The integrated multi-card plastic terminal assembly 300 can be electrically connected to both the SIM card and the SD card.

[0032] In order to realize the one-time injection molding of the plastic terminal assembly 300, the first conductive terminal 2 can be placed as an independent material strip and the second conductive terminal 3 can be placed as an independent material strip in an injection mold, and then injection molded at one time. In order to integrate all the first conductive terminals 2 on one material strip and electrically connect the first conductive terminals 2 to the PCB board, the plastic body 1 is also embedded with a first connecting terminal 4. One end of the first conductive terminal 2 is a free end and the other end is connected to the first connecting terminal 4 as a whole. The first connection terminal 4 includes a pair of first long side extension sections 41 extending along the long side direction of the plastic terminal assembly and a pair of first short side extension sections 42 extending along the short side direction of the plastic terminal assembly. The pair of first long side extension sections 41 and the pair of first short side extension sections 42 form a rectangular frame structure (not shown in the figure). A plurality of first fractures 43 are punched out on the four sides of the rectangular frame structure. Each first conductive terminal 2 is divided into an independent terminal module (not shown in the figure) by the first fractures 43. The rectangular frame structure is provided with a plurality of first welding portions 44 extending toward the inner side of the rectangular frame structure for welding each terminal module to the PCB board. Except for the first welding portions 44, the rest of the main body of the first connection terminal 4 is buried in the plastic body 1. The plastic body 1 is formed with a first punching cutout 11 corresponding to the position of the first fracture 43. All the first conductive terminals 2 are divided into two rows and distributed on both sides of the long side of the rectangular frame structure.

[0033] All the first conductive terminals 2 are connected as a whole through the first connecting terminals 4 and can be integrated into a material strip to achieve material strip type continuous injection molding.

[0034] This embodiment also shows another usage scenario of the plastic terminal assembly of the SIM card, such as Figure 5As shown, it is used as a separate plastic terminal component, for example, as an upper connection terminal module 400, which is only electrically connected to the SIM card. The upper connection terminal module 400 includes a plastic body 1 and a plurality of first conductive terminals 2 embedded in the plastic body 1 and electrically connected to the SIM card; a second connection terminal 5 is also embedded in the plastic body 1. The second connection terminal 5 electrically connects all the first conductive terminals 2 to the PCB board on the one hand, and enables all the first conductive terminals 2 to be integrated on a strip, realizing strip-type continuous injection molding. The second connection terminal 5 includes a second short side extension section 51 connected to the root of each first conductive terminal 2 and a plurality of second long side extension sections 52 connected to the ends of the second short side extension sections 51 one by one. The ends of each second long side extension section 52 uniformly extend to the rear side of the plastic body 1 and form a second welding portion 53. Two adjacent second long side extension sections 52 have multiple connection points before injection molding so that the second connection terminal 5 is an integrated structure so that it can be integrated on the material strip. The connection points are punched to form a second fracture 54 during injection molding, and a second punching cut 12 corresponding to the position of the second fracture 54 is formed on the plastic body 1. Except for the second welding portion 53, the rest of the second connection terminal 5 is completely buried in the plastic body 1.

[0035] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A plastic terminal assembly for a SIM card, characterized in that: It includes a plastic body and a plurality of first conductive terminals embedded in the plastic body and electrically connected to the SIM card; the middle parts of all the first conductive terminals are arched upward to form contact protrusions corresponding to the pin points on the SIM card; both ends of the first conductive terminals are pressed into the plastic body, and the first conductive terminals extend along the long side direction of the plastic terminal assembly and are arranged obliquely at an angle to the long side direction.

2. The plastic terminal assembly of a SIM card as claimed in claim 1, characterized in that: It also includes a plurality of second conductive terminals embedded in the plastic body and electrically connected to the SD card. The connection module formed by the first conductive terminals and the connection module formed by the second conductive terminals are distributed front to back along the long side direction of the plastic terminal assembly.

3. The plastic terminal assembly of a SIM card as claimed in claim 1, characterized in that: A connecting terminal is embedded in the plastic body; one end of the first conductive terminal is a free end and the other end is integrally connected to the connecting terminal; the connecting terminal connects all the first conductive terminals as a whole before injection molding, and the connecting terminal is provided with a plurality of fractures formed by punching during the injection molding process or after injection molding, and each of the first conductive terminals is divided into an independent terminal module through the fracture, and each of the independent terminal modules is provided with a welding portion.

4. The plastic terminal assembly of a SIM card as claimed in claim 3, characterized in that: The plastic body is formed with a punching cutout corresponding to the position of the fracture.

5. The plastic terminal assembly of a SIM card as claimed in claim 3, characterized in that: The connecting terminal includes a first connecting terminal, and the first connecting terminal includes a pair of first long side extension sections extending along the long side direction of the plastic terminal assembly and a pair of first short side extension sections extending along the short side direction of the plastic terminal assembly. The pair of first long side extension sections and the pair of first short side extension sections form a rectangular frame structure, and the fracture openings are distributed on the four sides of the rectangular frame structure; the welding portion extends inward from the frame of the rectangular frame structure; all the first conductive terminals are divided into two rows and distributed on both sides of the long sides of the rectangular frame structure.

6. The plastic terminal assembly of a SIM card as claimed in claim 3, characterized in that: The connecting terminal includes a second connecting terminal; the second connecting terminal includes a second short side extension segment connected to the root of each first conductive terminal and a plurality of second long side extension segments connected one by one to the ends of the second short side extension segments; the ends of each second long side extension segment uniformly extend to the rear side of the plastic body and form the welding portion, and two adjacent second long side extension segments have multiple connection points before injection molding so that the second connecting terminal is an integrated structure; the connection points are located at the fracture opening formed by punching during or after injection molding.

7. A card socket connector, characterized in that: It comprises the plastic terminal assembly as claimed in claim 1.

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