A novel card cage connector

Abstract

The utility model discloses a novel card seat connector relates to connector technical field, including connector base, and install the contact terminal subassembly on the connector base, the contact terminal subassembly includes a plurality of contact terminals, wherein, at least one contact terminal is equipped with the wiring pin, and the wiring pin extends the connector base along the horizontal direction of connector base and comes out the connector base, the contact terminal subassembly still includes at least one positioning terminal, and the positioning terminal is equipped with the first positioning pin, and the first positioning pin extends the connector base along the horizontal direction of connector base and comes out the connector base. By the wiring pin from the horizontal direction of connector base and out, can realize and the vertical direction or the line of special trend welding, enhanced the adaptability and layout degree of freedom of card seat connector in three -dimensional assembly, make it in high density, limited space or complex architecture's electronic assembly have stronger adaptability.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a novel card socket connector. Background Technology

[0002] A card slot connector is a specialized socket mounted on the PCB board of electronic products. Its core function is to provide a stable electrical connection and physical fixation for pluggable electronic cards. It typically consists of an insulated connector base and multiple sets of flexible metal terminals. When cards such as SIM cards and memory cards are inserted, these terminals make close contact with the contacts on the card to transmit data and power. Simultaneously, a positioning structure ensures accurate card placement and resists vibration or detachment. It is widely used in devices such as mobile phones, cameras, and card readers.

[0003] In existing card slot connector designs, the wiring pins of the metal terminals typically extend vertically from the bottom of the connector base. For example, a card slot connector and mobile device disclosed in Chinese Utility Model Patent CN222763291U employs this pin layout. However, this structure has certain application limitations: when soldering the connector to a PCB board, these pins are only suitable for horizontal wiring layouts and cannot meet the assembly requirements of vertical or recessed non-planar wiring structures, thus limiting its flexibility in compact or complex circuit designs.

[0004] To address these technical problems, we propose a novel card slot connector. Utility Model Content

[0005] This invention provides a novel card slot connector to solve the problems of the prior art mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A novel card slot connector includes a connector base and a contact terminal assembly mounted on the connector base; the contact terminal assembly includes a plurality of contact terminals, wherein at least one contact terminal is provided with a wiring pin that extends out of the connector base in a horizontal direction; the contact terminal assembly further includes at least one positioning terminal, the positioning terminal being provided with a first positioning pin that extends out of the connector base in a horizontal direction.

[0007] By configuring the wiring pins to extend horizontally from the connector base, it can be directly soldered to horizontal traces on the PCB. Furthermore, depending on the actual assembly requirements, this extension can be bent upwards or downwards to allow soldering to vertical or specially oriented traces.

[0008] By setting a first positioning pin on the positioning terminal, the contact terminal assembly can cooperate with the corresponding positioning groove in the injection mold during the injection molding process of the connector base. This effectively restricts the lateral displacement of the contact terminal assembly and avoids its position shift due to injection pressure or material flow, thereby significantly improving the molding accuracy and product consistency of the connector base.

[0009] When the connector is in use, the positioning terminals maintain electrical contact with the inserted card and PCB board, participating in conductive transmission. Simultaneously, the first positioning pin can also be soldered to components such as the PCB board, further enhancing the overall mechanical strength of the connector.

[0010] Furthermore, the positioning terminal is also provided with a second positioning pin, which extends out of the connector base along the horizontal direction. The first positioning pin and the second positioning pin are arranged perpendicular to each other in the horizontal direction.

[0011] During injection molding, the second positioning pin can cooperate with the corresponding positioning groove in the mold to effectively limit the longitudinal displacement of the contact terminal assembly. Furthermore, the first and second positioning pins are perpendicular to each other in the horizontal direction, thus limiting the contact terminal assembly in four degrees of freedom: front, back, left, and right.

[0012] Furthermore, the connector base has a sidewall, and the wiring pin, the first positioning pin, and the second positioning pin all extend through the sidewall from the connector base.

[0013] By having the wiring pin, the first positioning pin, and the second positioning pin all pass through the side wall, the wiring pin, the first positioning pin, and the second positioning pin can play a role in fixing and positioning.

[0014] Furthermore, the wiring pins and the second positioning pins are arranged parallel to each other.

[0015] Furthermore, the first positioning pin has a mating groove at one end extending from the connector base.

[0016] Furthermore, the connector base is provided with a through slot.

[0017] Furthermore, the contact terminal is provided with a wiring portion that extends into the through groove.

[0018] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By extending the wiring pins from the horizontal direction of the connector base, it is possible to solder them to vertical or specially oriented lines, enhancing the adaptability and layout freedom of the card slot connector in three-dimensional assembly, making it more adaptable in high-density, limited space or complex electronic assembly.

[0019] By setting positioning terminals and respectively setting first and second positioning pins on the positioning terminals, the first and second positioning pins cooperate with each other during the injection molding process of the connector. This effectively restricts the displacement of the contact terminal assembly in four degrees of freedom (front-back, left-right), thereby avoiding positional shifts caused by injection pressure or material flow, significantly improving the connector's processing accuracy and product consistency. Furthermore, during the connector soldering process to the PCB board, the first and second positioning pins can also cooperate with corresponding positioning holes or pads on the PCB board to achieve pre-positioning during the soldering stage, preventing drift during subsequent soldering and further improving soldering alignment accuracy and the reliability of the mechanical connection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

[0022] Figure 3 This is an exploded view of the present invention.

[0023] Figure 4 This is a schematic diagram of the contact terminal assembly.

[0024] In the figure: 100, connector base; 101, side wall; 102, through groove; 200, contact terminal assembly; 201, contact terminal; 2011, wiring pin; 2012, wiring part; 202, positioning terminal; 2021, first positioning pin; 2022, second positioning pin; 2023, mating groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following description of at least one exemplary embodiment is illustrative in nature and is not intended to limit the present utility model or its application or use in any way. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary rather than limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0028] Please see Figures 1 to 4 : This utility model provides a novel card slot connector, including a connector base 100 and a contact terminal assembly 200 mounted on the connector base 100; the contact terminal assembly 200 includes a plurality of contact terminals 201, wherein at least one contact terminal 201 is provided with a wiring pin 2011, the wiring pin 2011 extends out of the connector base 100 along the horizontal direction; the contact terminal assembly 200 also includes at least one positioning terminal 202, the positioning terminal 202 is provided with a first positioning pin 2021, the first positioning pin 2021 extends out of the connector base 100 along the horizontal direction.

[0029] In this embodiment, the connector base 100 is integrally formed by injection molding, and its overall structure is approximately cuboid. The long side of the connector base 100 is longitudinal (i.e., front-to-back direction), the short side is transverse (i.e., left-to-right direction), and the plane formed by the long side and the short side is a horizontal plane.

[0030] A card slot for inserting a card is provided in the middle of the connector base 100, and sidewalls 101 are provided on the left, right, and rear sides of the card slot. The contact terminal assembly 200, as a pre-installed insert, is positioned in the mold cavity before injection molding and is finally encapsulated inside the connector base 100 after injection molding. The contact terminal assembly 200 has an elastic contact portion that extends through the connector base 100 and into the card slot; when the card is inserted into the card slot, the elastic contact portion can make tight contact with the gold finger area on the card surface, thereby achieving an electrical connection.

[0031] In this embodiment, multiple wiring pins 2011 extend horizontally along the left-right direction of the connector base 100 and protrude through the side wall 101. Simultaneously, a positioning terminal 202 is provided, with its first positioning pin 2021 protruding horizontally along the rear side of the base. It should be noted that the specific number of wiring pins 2011 and positioning terminal 202 can be adaptively adjusted according to the connector size and actual circuit requirements in different application scenarios to improve flexibility and applicability.

[0032] Before the connector base 100 is injection molded, all contact terminals 201 and positioning terminals 202 are connected to each other by a continuous strip to form an integral contact terminal assembly 200. This method facilitates transportation and assembly positioning, and effectively maintains the relative positional relationship between the terminals during the injection molding process.

[0033] To further improve the molding accuracy of the connector, the injection mold is provided with a positioning groove that matches the first positioning pin 2021. During the injection molding process, the first positioning pin 2021 is inserted into the corresponding positioning groove to achieve precise positioning and limiting of the contact terminal assembly 200, effectively preventing the terminal from shifting due to the flow of injection material or molding pressure, and significantly improving the dimensional consistency and structural reliability of the connector.

[0034] like Figures 1 to 4 As shown, in one embodiment, the wiring pin 2011 and the first positioning pin 2021 are arranged perpendicularly to each other in the horizontal direction. In this embodiment, the injection mold is provided with a corresponding slot structure that mates with the wiring pin 2011, so that the wiring pin 2011 and the first positioning pin 2021 can work together to constrain the contact terminal assembly 200 in the longitudinal and transverse directions, respectively, thereby improving the positioning accuracy.

[0035] In addition to their positioning function during injection molding, the first positioning pin 2021 and the wiring pin 2011 can also be used for auxiliary positioning during connector soldering to the PCB board in other embodiments. For example, a soldering slot matching the shape of the first positioning pin 2021 or the wiring pin 2011 can be opened at the corresponding position on the PCB board; during soldering, the first positioning pin 2021 or the wiring pin 2011 can be inserted into the corresponding slot to achieve pre-positioning of the connector on the PCB board, thereby effectively suppressing component displacement in subsequent soldering processes, ensuring accurate soldering position, and improving soldering yield and connection mechanical strength.

[0036] like Figure 4 As shown, in an optional embodiment, the first positioning pin 2021 has a mating groove 2023 at its end extending out of the connector base 100. A corresponding protrusion structure that engages with the mating groove 2023 is provided in the positioning groove of the injection mold. During injection molding, the protrusion structure can be embedded into the mating groove 2023, forming a mechanical interlock, thereby enhancing the anti-displacement capability of the first positioning pin 2021 during injection molding, achieving higher precision positioning and limiting, and further improving the overall molding consistency and dimensional stability of the connector.

[0037] Furthermore, when using the first positioning pin 2021 for soldering positioning, a positioning protrusion matching the mating groove 2023 can be pre-set at the corresponding position on the PCB board. This positioning protrusion can engage with the mating groove 2023 during assembly, forming a mechanical interlocking structure, thereby achieving pre-fixation and precise positioning of the first positioning pin 2021 before soldering. This structure not only effectively prevents pin displacement due to temperature changes or external forces during soldering, but also improves soldering alignment accuracy and bonding strength, making it particularly suitable for high-density assembly or applications with high requirements for vibration environments.

[0038] Based on the above manufacturing process, after the connector base 100 is injection molded, the wiring pins 2011 and the first positioning pins 2021 of the terminal assembly 200 are exposed outside the base. This structure allows the wiring pins 2011 to extend horizontally out of the connector base 100, enabling them to be directly soldered to circuits arranged horizontally on the PCB board surface.

[0039] To further enhance the connector's adaptability in complex assembly environments, the horizontally extending wiring pin 2011 can be bent upwards or downwards as needed, thereby enabling interconnection with circuit pads in a vertical direction or specific spatial orientation. For example, in applications involving board-to-board vertical mating, module stacking, or mounting of irregularly shaped components, the bent wiring pin 2011 can be soldered to side pads; in metallized slot assembly scenarios, the bent wiring pin 2011 can be soldered vertically along the slot wall; and in compact electronic devices such as mobile phones and smartwatches, this structure supports localized vertical routing or soldering in the edge area of ​​the PCB board, improving space utilization efficiency and overall integration.

[0040] During actual use, the positioning terminal 202 can maintain stable electrical contact with the inserted card and PCB board, participating in signal transmission and current conduction to form a complete electrical circuit. Simultaneously, the first positioning pin 2021 can be soldered to components such as the PCB board, further enhancing the mechanical anchoring effect of the entire connector on the PCB board, significantly improving its resistance to vibration, torsion, and insertion / extraction stress, ensuring connection reliability and long service life.

[0041] like Figure 4 As shown, in a preferred embodiment, the positioning terminal 202 is further provided with a second positioning pin 2022, which extends out of the connector base 100 along the horizontal direction. The first positioning pin 2021 and the second positioning pin 2022 are arranged perpendicularly to each other in the horizontal direction. The connector base 100 has a sidewall 101, through which the wiring pin 2011, the first positioning pin 2021, and the second positioning pin 2022 all extend out of the connector base 100. The wiring pin 2011 and the second positioning pin 2022 are arranged parallel to each other. The first positioning pin 2021 and the second positioning pin 2022 are integrally formed with the positioning terminal 202.

[0042] During the injection molding process, the cavity of the injection mold is provided with a positioning groove that matches the second positioning pin 2022. Since the first positioning pin 2021 and the second positioning pin 2022 are arranged perpendicularly to each other in the horizontal direction, they can be inserted into their respective positioning grooves during injection molding to achieve positioning of the contact terminal assembly 200 in both the lateral and longitudinal dimensions. This method can effectively limit the displacement of the terminal assembly in the four degrees of freedom (front-back, left-right), thereby resisting the asymmetric stress generated by material flow during injection molding, significantly improving the positioning accuracy of the insert and the consistency of the overall connector molding.

[0043] Furthermore, since the second positioning pin 2022 and the first positioning pin 2021 adopt an integral molding structure, their relative position is guaranteed during the manufacturing stage, avoiding assembly errors. Therefore, the second positioning pin 2022 has better positioning accuracy and limiting stability than the wiring pin 2011, providing a more reliable constraint effect, effectively enhancing the anti-displacement capability of the contact terminal assembly 200 during injection molding, thereby improving the overall molding quality and dimensional consistency of the connector.

[0044] In connector soldering and practical use, the second positioning pin 2022 can also have the same electrical function as the wiring pin 2011, enabling soldering to horizontal or vertical traces on the PCB board according to wiring requirements, enhancing the flexibility and adaptability of interface interconnection. Simultaneously, the second positioning pin 2022 can work in conjunction with the first positioning pin 2021 to jointly achieve connector soldering positioning on the PCB board. By arranging and positioning the second positioning pin 2022 and the first positioning pin 2021 at a specific spatial angle (e.g., perpendicular to each other), multi-dimensional positional constraints can be formed on the connector in both the longitudinal and lateral directions. This positioning method effectively limits the risk of connector rotation and movement in the plane during soldering, significantly improving its directional accuracy and positional repeatability when mating with the PCB board, thereby ensuring a stable and reliable soldering process and further enhancing the connector's vibration resistance and long-term connection reliability under complex operating conditions.

[0045] In addition, by configuring the wiring pin 2011, the first positioning pin 2021 and the second positioning pin 2022 to extend horizontally through the side wall 101 of the connector base 100, the structure achieves the covering and mechanical fixation of the root of the wiring pin 2011, which greatly reduces the pin displacement or loosening caused by external force during soldering or use, and further improves the stability of the overall connector structure and the reliability of long-term use.

[0046] like Figure 1 and Figure 2 As shown, in one embodiment, the connector base 100 has a through slot 102 structure, and the contact terminal 201 is equipped with a wiring portion 2012 extending into the through slot 102. This structure allows the contact terminal 201 to be directly soldered to the corresponding line on the PCB board below through the wiring portion 2012, without relying on the bending or lateral extension of the wiring pin 2011, providing more diverse electrical connection paths for connector installation.

[0047] Furthermore, this structure significantly enhances the connector's adaptability in space-constrained or high-density assembly scenarios, making it particularly suitable for compact electronic devices requiring direct bottom connection, such as ultra-thin mobile terminals and micro IoT modules. Simultaneously, the cooperation between the through-slot 102 and the wiring section 2012 also improves the terminal's heat dissipation performance and mechanical stability to a certain extent, enabling the connector to maintain good electrical connection reliability and structural strength even in complex installation environments.

[0048] In summary: This invention extends the wiring pins 2011 from the horizontal direction of the connector base 100, enabling welding to lines in the vertical direction or with special orientations. This enhances the adaptability and layout freedom of the card slot connector in three-dimensional assembly, making it more adaptable in high-density, limited-space, or complex electronic assembly.

[0049] By setting a positioning terminal 202, and respectively setting a first positioning pin 2021 and a second positioning pin 2022 on the positioning terminal 202, during the injection molding process of the connector, the first positioning pin 2021 and the second positioning pin 2022 cooperate with each other to effectively limit the displacement of the contact terminal assembly 200 in the four degrees of freedom directions of front-back, left-right, and right-right. This avoids positional deviation caused by injection pressure or material flow, significantly improving the processing accuracy and product consistency of the connector. In addition, during the process of soldering the connector to the PCB board, the first positioning pin 2021 and the second positioning pin 2022 can also cooperate with the corresponding positioning holes or pads on the PCB board to achieve pre-positioning during the soldering stage, preventing drift during subsequent soldering, and further improving the soldering alignment accuracy and the reliability of the mechanical connection.

Claims

1. A novel card slot connector, characterized in that, Includes a connector base and a contact terminal assembly mounted on the connector base; The contact terminal assembly includes a plurality of contact terminals, wherein at least one of the contact terminals is provided with a wiring pin, the wiring pin extending out of the connector base in a horizontal direction; The contact terminal assembly further includes at least one positioning terminal, the positioning terminal having a first positioning pin that extends out of the connector base along the horizontal direction of the connector base.

2. The novel card slot connector according to claim 1, characterized in that: The positioning terminal is also provided with a second positioning pin, which extends out of the connector base along the horizontal direction of the connector base.

3. The novel card slot connector according to claim 2, characterized in that: The first positioning pin and the second positioning pin are arranged perpendicularly to each other in the horizontal direction.

4. The novel card slot connector according to claim 3, characterized in that: The connector base has a side wall, and the wiring pin, the first positioning pin, and the second positioning pin all extend through the side wall from the connector base.

5. The novel card slot connector according to claim 4, characterized in that: The second positioning pin is arranged parallel to the wiring pin.

6. The novel card slot connector according to any one of claims 1 to 5, characterized in that: The wiring pin and the first positioning pin are arranged perpendicular to each other in the horizontal direction.

7. The novel card slot connector according to claim 1, characterized in that: The first positioning pin has a mating groove at one end extending from the connector base.

8. The novel card slot connector according to claim 1, characterized in that: The connector base is provided with a through slot.

9. The novel card slot connector according to claim 8, characterized in that: The contact terminal is provided with a wiring portion, which extends into the through groove.

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