Electronic card connector

Abstract

The present application discloses an electronic card connector, which comprises an insulating body, a conductive terminal fixed in the insulating body and a shielding shell; the conductive terminal is provided with a holding part held on the insulating body, an elastic arm downwardly protruding into a receiving space from the holding part and a welding part extending out of the insulating body; the insulating body is injection molded on the conductive terminal and the shielding shell to be combined together, and a receiving space is formed to reduce the height of the electronic card connector and realize miniaturization.

Description

[0001] This application is a divisional application of the invention patent with application number "201710665441.7", application date "2017.08.04", and title "Electronic Card Connector". Technical Field

[0002] This invention relates to an electronic card connector, and more particularly to a miniaturized and scalable electronic card connector. Background Technology

[0003] Please refer to Chinese Utility Model Patent Publication No. CN204558701, which discloses an electronic card connector. This connector includes an insulating body, conductive terminals fixed within the insulating body, and a shielding shell surrounding the insulating body. The insulating body and the shielding shell together hold a receiving cavity for inserting a card tray containing an electronic card. However, since the conductive terminals are mounted on the insulating body, the insulating body needs to maintain sufficient thickness to improve its strength. Furthermore, the electronic card connector has an insulating body and a shielding shell on both sides of the receiving space, thus increasing the overall height of the connector and failing to meet the current trend of miniaturization in electronic card connectors.

[0004] Please refer to Chinese Invention Patent Application Publication No. CN106450844, which discloses another electronic card connector, comprising an insulating body, conductive terminals, and a shielding shell. The conductive terminals are integrally stamped from a metal plate, and the conductive terminals and the insulating body are integrally injection molded. The shielding shell is fastened to the insulating body and together they form a receiving cavity for inserting a card tray containing an electronic card. While this invention integrally stamps and injection molds the metal plate onto the insulating body, reducing the thickness of the insulating body, the presence of the shielding shell and insulating body on both sides of the receiving cavity hinders further miniaturization of the electronic card connector and limits its application to electronic cards with specific requirements.

[0005] Therefore, it is hoped that a new electronic card connector can be proposed to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of this invention is to provide a miniaturized electronic card connector.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an electronic card connector, comprising an insulating body, conductive terminals fixed within the insulating body, and a shielding shell; the conductive terminals are provided with a holding portion fixed on the insulating body, an elastic arm within a receiving space extending downward from the holding portion, and a welding portion extending out of the insulating body; the insulating body is injection molded onto the conductive terminals and the shielding shell and joined together to form a receiving space, wherein the elastic arm protrudes into the receiving space.

[0008] In a preferred embodiment, the shielding housing has a top wall and a pair of side walls that bend downwards from both sides of the top wall, and the insulating body is integrally injection molded on the top wall of the shielding housing. The aforementioned receiving space is provided with at least the top wall and the side walls around it.

[0009] In a preferred embodiment, the top wall of the shielding housing is provided with a guide portion that is located at its front end and protrudes inward, the guide portion being located at the front end of the insulating body.

[0010] In a preferred embodiment, the top wall is provided with a through hole that penetrates the upper and lower surfaces, the through hole is provided with a chamfered portion located on the upper surface of the top wall and gradually increasing in size outward, and the insulating body has a fastening portion that fills the chamfered portion.

[0011] In a preferred embodiment, the top wall of the shielding housing is provided with a guide portion that is located at the front end and protrudes inward, and the guide portion is located at the front end of the insulating body.

[0012] In a preferred embodiment, the guide portion is a spring sheet that tears open the top wall of the self-shielding housing and extends inward, and extends obliquely inward.

[0013] In a preferred embodiment, the insulating body is provided with an inclined guide portion at its front end, the lower side of the inclined guide portion being lower than the lower side of the guide portion of the shielding shell in the vertical direction, the guide portion being located in front of the inclined guide portion and partially embedded in the insulating body.

[0014] In a preferred embodiment, the insulating body has a main body, and the conductive terminals and shielding shell are integrally formed on the main body.

[0015] In a preferred embodiment, the insulating body has a rear end located at the rear end of the main body. The electronic card connector includes a detection terminal integrally formed on the rear end of the insulating body and an elastic terminal assembled on the rear end. The detection terminal and the conductive terminal are formed by stamping and blanking from the same strip and have a contact portion exposed on the rear end and a welding portion extending out of the rear end. The welding portions of the detection terminal and the welding portions of the conductive terminal are arranged in a row. The elastic terminal includes a bent portion that bends and extends into the receiving space and an abutting portion located at the free end of the bent portion. The abutting portion of the elastic terminal is located at the rear end of the contact portion of the detection terminal and abuts against the contact portion of the detection terminal.

[0016] Compared with the prior art, the present invention has the following advantages: by integrally molding the insulating body and the conductive terminal on the shielding housing, the height of the electronic card connector is reduced, thereby achieving miniaturization. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the electronic card connector according to the first embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the electronic card connector from another angle.

[0019] Figure 3 yes Figure 1 An exploded view of the electronic card connector is shown.

[0020] Figure 4 yes Figure 2 An exploded view of the electronic card connector is shown.

[0021] Figure 5 yes Figure 1 The electronic card connector shown is a cross-sectional view along the AA direction.

[0022] Figure 6 yes Figure 5 A partially enlarged view of the electronic card connector shown.

[0023] Figure 7 yes Figure 5 A partially enlarged view of the electronic card connector shown.

[0024] Figure 8 This is a three-dimensional schematic diagram of the electronic card connector according to the second embodiment of the present invention. Detailed Implementation

[0025] See Figures 1 to 5 As shown, this invention discloses an electronic card connector 100, which can be mounted on a circuit board (not shown) and used to insert a card tray (not shown) containing an electronic card. The electronic card connector 100 includes an insulating body 1, conductive terminals 2 fixed within the insulating body 1, and a shielding shell 3 covering the periphery of the insulating body 1. The insulating body 1 and the shielding shell 3, together with the circuit board, form a receiving space 101 for inserting the electronic card in the insertion / removal direction. Specifically, the shielding shell 3 and the insulating body 1 are located on one side of the receiving space 101 to reduce the space required for the electronic card connector and achieve miniaturization, as will be described in detail later. The conductive terminals 2 are integrally stamped from terminal strip material to reduce molding processes and lower costs.

[0026] See Figures 1 to 4 As shown, the insulating body 1 is formed during the injection molding process of the conductive terminals 2 and the shielding housing 3. The insulating body 1 has a main body 11 and a rear end portion 12 located at the rear end of the main body 11, and the receiving space 101 is located below the main body 11 of the insulating body 1. The terminal strip is fixed to the insulating body 1 by embedding molding, and then the conductive terminals 2 on the terminal strip are cut and separated from each other.

[0027] The conductive terminal 2 has a holding portion 21 fixed to the insulating body 1, an elastic arm 22 protruding downward from the holding portion 21 into the receiving space 101, and a welding portion 23 extending out of the insulating body 1. The conductive terminals 2 are arranged in two rows. The elastic arms 22 of the conductive terminals 2 extend into the receiving space 101 along the insertion / removal direction, and the elastic arms 22 can move toward the rear end 12 of the insulating body 1 to mate with the corresponding electronic card. The welding portions 23 extend out of the rear end 12 of the insulating body 1 and are arranged in a row in the transverse direction perpendicular to the insertion / removal direction. At the same time, the height of the welding portions 23 in the vertical direction perpendicular to the insertion / removal direction is lower than the height of the elastic arms 22.

[0028] Combination Figure 5 and Figure 6 As shown, the shielding housing 3 has a top wall 31 and a pair of side walls 32 that bend downwards from both sides of the top wall 31. The conductive terminal 2 and the insulating body 1 are together fixed on the top wall 31 of the shielding housing 3. The top wall 31 is provided with a through hole 33 penetrating its upper and lower surfaces and a guide portion 34 located at its front end and protruding into the receiving space 101. The through hole 33 is provided with a chamfered portion 330 located on the upper surface of the top wall 31 and gradually increasing in size outwards. The insulating body 1 is integrally injection molded on the top wall 31 of the shielding housing 3 and has a retaining portion 13 that fills the chamfered portion 330, further reducing the height of the insulating body and the shielding housing 3, achieving miniaturization, maintaining the holding effect of the shielding housing and the insulating body, and achieving the flatness of the top wall of the shielding housing. The through hole 33 is used for positioning the mold during the injection molding of the insulating body 1, and the retaining portion 13 securely fixes the insulating body 1 to the top wall 31 of the shielding housing 3 so that it is not easy to fall off.

[0029] Combination Figure 7 As shown, the guide portion 34 is a spring piece that tears from the top wall 31 of the shielding housing 3 and extends inward into the receiving space 101, and extends inward at an inward angle to facilitate the insertion of the electronic card. The main body 11 of the insulating body 1 is provided with an inclined guide portion 14 at its front end. The lower side of the inclined guide portion 14 is lower than the lower side of the guide portion 34 of the shielding housing 3 in the vertical direction. The guide portion 34 is located in front of the inclined guide portion 14 and is partially embedded in the insulating body 1. When the card tray is inserted into the receiving space 101 of the electronic card connector 100, the card tray is first guided by the guide portion 34 of the shielding housing 3, and then slides along the inclined guide portion 14 of the insulating body 1 and is finally received into the receiving space 101; this avoids the card tray directly colliding with or scratching the main body 11 of the insulating body 1 when inserted.

[0030] The side wall 32 of the shielding housing 3 is provided with an elastic retaining part 35 that is not connected to the top wall 31 and a soldering foot 36 that is mounted on the circuit board. The elastic retaining part 35 protrudes into the receiving space 101 to lock the card tray containing the electronic card. The soldering foot 36 and the soldering part 23 are in the same plane so that they are soldered together on the circuit board, ensuring that the electronic card connector 100 is stably soldered and fixed on the circuit board.

[0031] The electronic card connector 100 further includes a detection terminal 4 integrally formed on the rear end portion 12 of the insulating body 1 and an elastic terminal 5 assembled on the rear end portion 12. The detection terminal 4 and the conductive terminal 2 are formed by stamping and blanking from the same strip and are provided with a contact portion 41 exposed on the rear end portion 12 and a welding portion 42 extending out of the rear end portion 12. The welding portion 42 of the detection terminal 4 and the welding portion 23 of the conductive terminal 2 are arranged in a row. The elastic terminal 5 includes a bent portion 51 that bends and extends into the receiving space 101 and an abutment portion 52 located at the free end of the bent portion 51. The abutment portion 52 of the elastic terminal 5 is located at the rear end of the contact portion 41 of the detection terminal 4 and abuts against the contact portion 41 of the detection terminal. When the card tray is not inserted, the abutting portion 52 of the elastic terminal 5 abuts against the contact portion 41 of the detection terminal; when the card tray is fully inserted, the card tray pushes the elastic terminal 5 backward, causing the abutting portion 52 of the elastic terminal 5 to separate from the contact portion 41 of the detection terminal, thereby forming a detection function when the card tray is inserted.

[0032] This invention features an insulating body 1 and conductive terminals 2 mounted on the top wall of a shielding housing, with a pair of side walls 32 bent downwards from both sides of the top wall 31. These side walls 32 are provided with solder feet 36 for mounting onto a circuit board. The lower sides of the shielding housing 3 and the insulating body 1, together with the circuit board, form a receiving space 101. This reduces the height of the electronic card connector, achieving miniaturization. Furthermore, the lower side of this receiving space 101 is free of other mechanisms, facilitating the expansion of the electronic card connector's compatibility with other mechanisms, enabling diversified use and allowing for adjustments to meet different customer needs. For example, other connectors can be placed on the lower side for compatibility, requiring only one set of electronic card connectors without the need for additional molds, thus reducing the mold manufacturing cost of the electronic card connector.

[0033] See Figure 8 As shown, this is an electronic card connector 200 according to a second embodiment of the present invention. The structure of this electronic card connector 200 is largely the same as that of the electronic card connector 100 in the first embodiment, and will not be described in detail here. The difference between the electronic card connector 200 and the electronic card connector 100 in the first embodiment is as follows:

[0034] The guide portion 34 of the shielding housing 3 is a protruding rib extending from the top wall 31 of the shielding housing 3 into the receiving space 101, which can maintain the strength of the shielding housing of the electronic card connector. The guide portion 34 is located in front of the inclined guide portion 14 and has a gap with the insulating body 1. The conductive terminals 2 are arranged in two rows, and the elastic arms 22 of the two rows of conductive terminals 2 extend laterally into the receiving space 101 perpendicular to the insertion and removal direction and are arranged opposite to each other. The electronic card connector 200 is provided with an insulating protrusion 37 integrally injection molded on the elastic holding portion 35, and the insulating protrusion 37 protrudes into the receiving space 101. The structure of the electronic card connector 200 is slightly different from that of the electronic card connector 100 in the first embodiment, but they can both achieve the same technical effect in the corresponding electronic card connectors.

[0035] In summary, the above are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the present invention should still fall within the scope of the present invention.

Claims

1. An electronic card connector, comprising an insulating body, conductive terminals fixed within the insulating body, and a shielding housing; the conductive terminals are provided with a holding portion fixed to the insulating body, an elastic arm protruding downward from the holding portion, and a welding portion extending out of the insulating body; characterized in that: The insulating body is injection molded onto the conductive terminal and the shielding shell and bonded together to form a receiving space, into which the elastic arm protrudes. The conductive terminal is integrally stamped from a terminal strip and fixed to the insulating body by embedding. The conductive terminals on the terminal strip are then cut off from each other. The shielding shell has a top wall and a pair of side walls that bend downwards from both sides of the top wall. The receiving space is provided with at least the top wall and the side walls. The insulating body is integrally injection molded onto the top wall of the shielding shell, i.e., the shielding shell and the insulating body are located on the same side of the receiving space. The top wall has a through hole that penetrates the upper and lower surfaces. The through hole has a chamfered portion located on the upper surface of the top wall and gradually increasing in size outwards. The insulating body has a retaining portion that fills the chamfered portion.

2. The electronic card connector as described in claim 1, characterized in that: The top wall of the shielding housing is provided with a guide portion that is located at the front end and protrudes inward. The guide portion is located at the front end of the insulating body.

3. The electronic card connector as described in claim 2, characterized in that: The guiding part is a spring sheet that tears inward from the top wall of the self-shielding shell and extends inward at an inward angle.

4. The electronic card connector as described in claim 2, characterized in that: The insulating body is provided with an inclined guide portion at its front end. The lower side of the inclined guide portion is lower than the lower side of the guide portion of the shielding shell in the vertical direction. The guide portion is located in front of the inclined guide portion and is partially embedded in the insulating body.

5. The electronic card connector as described in claim 1, characterized in that: The insulating body has a main body, and the aforementioned conductive terminals and shielding shell are integrally formed on the main body.

6. The electronic card connector as described in claim 5, characterized in that: The insulating body has a rear end located at the rear end of the main body. The electronic card connector includes a detection terminal integrally formed on the rear end of the insulating body and an elastic terminal assembled on the rear end. The detection terminal and the conductive terminal are formed by stamping and blanking from the same strip and have a contact portion exposed on the rear end and a welding portion extending out of the rear end. The welding portions of the detection terminal and the welding portions of the conductive terminal are arranged in a row. The elastic terminal includes a bent portion that bends and extends into the receiving space and an abutting portion located at the free end of the bent portion. The abutting portion of the elastic terminal is located at the rear end of the contact portion of the detection terminal and abuts against the contact portion of the detection terminal.

Images