Electronic card connector

Abstract

The utility model discloses an electronic card connector, which comprises a lengthwise insulating body, a plurality of conductive terminals fixedly held on the insulating body and a metal shell covered on the outer side of the insulating body, and the conductive terminals comprise upper terminals and lower terminals which are arranged in two rows along the lengthwise direction. The insulating body is provided with an upper insulator for holding the upper terminal and a lower insulator for holding the lower terminal. An upper terminal module is integrally formed by the upper insulator and the upper terminal, a lower terminal module is integrally formed by the lower insulator and the lower terminal, and the upper terminal module is assembled on the lower terminal module forwards in the transverse direction. According to the integrated injection molding design, the position degree of the conductive terminals is stable, so that stable plugging of the electronic card connector is realized.

Description

Technical Field

[0001] This utility model relates to the field of card edge connector technology, and in particular to an electronic card connector with stable contact. Background Technology

[0002] Card edge connectors are widely used in the connection of various electronic devices. They are typically mounted on and electrically connected to a circuit board, and each connector has a slot for inserting an electronic card. Therefore, when an electronic card is inserted into the connector, its electronic contacts align with the conductive terminals of the connector, thus achieving an electrical connection between the circuit board and the card. However, in existing card edge connectors, the conductive terminals are inserted into an insulating body for assembly. This insert-type design is unstable during insertion, easily leading to misalignment and potentially causing open circuits when the electronic card is inserted.

[0003] Therefore, it is hoped that a new electronic card connector can be proposed to overcome the above-mentioned defects. Utility Model Content

[0004] The purpose of this invention is to provide an electronic card connector in which the conductive terminals and the insulating body are integrally injection molded, thereby ensuring the stable position of the conductive terminals.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an electronic card connector, comprising a longitudinally elongated insulating body, several conductive terminals fixed on the insulating body, and a metal shell covering the outside of the insulating body. The conductive terminals include upper terminals and lower terminals arranged in two rows along the longitudinal direction, with the upper terminals located above the lower terminals. The insulating body is provided with an upper insulator for holding the upper terminals and a lower insulator for holding the lower terminals. The upper insulator and the upper terminals are integrally formed into an upper terminal module, and the lower insulator and the lower terminals are integrally formed into a lower terminal module. The upper terminal module is assembled laterally forward onto the lower terminal module.

[0006] In a preferred embodiment, the upper insulator has a vertically extending vertical plate portion and a horizontal plate portion extending laterally forward from the top of the vertical plate portion, and the lower insulator has a vertically extending vertical wall portion and a horizontal wall portion extending laterally forward from the top of the vertical wall portion. The vertical plate portion is assembled to the lateral rear end of the vertical wall portion, and the horizontal plate portion is located above the horizontal wall portion.

[0007] In a preferred embodiment, the upper insulator is provided with a limiting post protruding forward from the front end of the vertical plate and a first latching part protruding forward laterally from both longitudinal ends of the vertical plate. The lower insulator is provided with a through hole penetrating the vertical wall laterally and a first latching groove recessed forward from the rear side of both longitudinal ends of the vertical wall. The limiting post is inserted into the through hole, and the first latching part engages with the first latching groove.

[0008] In a preferred embodiment, the upper insulator is provided with a rear retaining groove recessed from the transverse front end of the horizontal plate portion and a second retaining portion extending forward from both longitudinal ends of the horizontal plate portion. The lower insulator is provided with a front retaining portion located at the top of the horizontal wall portion and a second retaining groove recessed from the rear ends of both longitudinal sides of the horizontal wall portion. The front retaining portion is inserted into the rear retaining groove, and the second retaining portion engages with the second retaining groove.

[0009] In a preferred embodiment, the lower insulator is provided with two extension arms that extend laterally forward from both ends of the longitudinal side of the transverse wall portion. The extension arms are provided with a sliding groove that extends laterally through the front end face, and the sliding groove is used to receive an electronic card.

[0010] In a preferred embodiment, the metal housing includes an upper housing that covers the upper terminal module and a lower housing that covers the lower terminal module, the lower housing being connected to the upper housing to enclose the upper terminal module and the lower terminal module.

[0011] In a preferred embodiment, the upper housing has a top wall that covers the upper terminal module, two side walls extending downward from the longitudinal sides of the top wall, and a rear end wall extending downward from the lateral rear side of the top wall. The side walls cover the longitudinal sides of the insulating body, and the rear end wall covers the lateral rear side of the insulating body. The lower housing has a bottom wall that covers the lower part of the lower terminal module and a front end wall extending downward from the lateral rear side of the bottom wall. The front end wall covers the lower front end of the lower terminal module and is connected to the side walls.

[0012] In a preferred embodiment, the upper housing is provided with an upper spring piece that extends horizontally forward from the top wall into the insertion space, and the lower housing is provided with a lower spring piece that extends horizontally forward from the bottom wall into the insertion space. The upper spring piece and the lower spring piece are arranged opposite to each other in the vertical direction.

[0013] In a preferred embodiment, the electronic card connector includes a metal bracket welded to the metal housing, the metal bracket including an upper bracket at least partially attached to the top surface of the top wall of the upper housing and a lower bracket at least partially attached to the bottom surface of the bottom wall of the lower housing.

[0014] In a preferred embodiment, the upper bracket covers the upper spring piece above and extends laterally forward beyond the front end of the upper spring piece, and the lower bracket covers the lower spring piece below and extends laterally forward beyond the front end of the lower spring piece.

[0015] Compared with the prior art, this utility model has the following advantages: the upper insulator and the upper terminal are integrally formed into an upper terminal module, and the lower insulator and the lower terminal are integrally formed into a lower terminal module. The upper terminal module is assembled onto the lower terminal module laterally forward. This integral injection molding design ensures stable positioning of the conductive terminals, thereby achieving stable insertion of the electronic card connector. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the electronic card connector in a preferred embodiment of the present invention.

[0017] Figure 2 yes Figure 1 An exploded view of the electronic card connector is shown.

[0018] Figure 3 yes Figure 1 The front view of the electronic card connector shown.

[0019] Figure 4 yes Figure 3 The electronic card connector shown is a cross-sectional view along the AA direction.

[0020] Figure 5 yes Figure 3 The electronic card connector shown is a cross-sectional view along the BB direction.

[0021] Figure 6 yes Figure 1 The diagram shows a three-dimensional representation of the upper and lower terminal modules in the electronic card connector.

[0022] Figure 7 yes Figure 1 A three-dimensional schematic diagram of the conductive terminals in the electronic card connector shown. Detailed Implementation

[0023] Please see Figures 1 to 7 As shown, a preferred embodiment of the present invention discloses an electronic card connector 100 for inserting an electronic card (not shown). The electronic card connector 100 includes a longitudinally elongated insulating body 10, a plurality of conductive terminals 20 fixed on the insulating body 10, and a metal housing 30 covering the outside of the insulating body 10. The insulating body 10 and the metal housing 30 together form an insertion space 101 with an opening facing the lateral front end, the insertion space 101 for inserting the aforementioned electronic card.

[0024] Please see Figures 2 to 6 As shown, the conductive terminal 20 includes an upper terminal 21 and a lower terminal 22 arranged in two rows along the longitudinal direction, with the upper terminal 21 located above the lower terminal 22. The insulating body 10 is provided with an upper insulator 11 for holding the upper terminal 21 and a lower insulator 12 for holding the lower terminal 22. The upper insulator 11 and the upper terminal 21 are integrally formed into an upper terminal module 110, and the lower insulator 12 and the lower terminal 22 are integrally formed into a lower terminal module 120. The upper terminal module 110 is assembled laterally forward onto the lower terminal module 120. This integral injection molding design ensures the stable position of the conductive terminal 20, thereby achieving stable insertion of the electronic card connector 100.

[0025] Specifically, the upper insulator 11 has a vertically extending vertical plate portion 111 and a horizontal plate portion 112 extending laterally forward from the top of the vertical plate portion 111. The lower insulator 12 has a vertically extending vertical wall portion 121 and a horizontal wall portion 122 extending laterally forward from the top of the vertical wall portion 121. When the upper terminal module 110 is assembled to the lower terminal module 120, the vertical plate portion 111 is assembled at the lateral rear end of the vertical wall portion 121, and the horizontal plate portion 112 is located above the horizontal wall portion 122.

[0026] Furthermore, the upper insulator 11 is provided with a limiting post 113 protruding forward from the front end of the vertical plate portion 111 and a first latching portion 114 protruding forward laterally from both longitudinal ends of the vertical plate portion 111. The lower insulator 12 is provided with a through hole 123 penetrating the vertical wall portion 121 laterally and a first latching groove 124 recessed forward from the rear side of both longitudinal ends of the vertical wall portion 121. When the upper terminal module 110 is assembled to the lower terminal module 120, the limiting post 113 is inserted into the through hole 123, and the first latching portion 114 engages with the first latching groove 124.

[0027] The upper insulator 11 has a rear retaining groove 115 recessed from the transverse front end of the horizontal plate portion 112 and a second retaining portion 116 extending forward from both longitudinal ends of the horizontal plate portion 112. The lower insulator 12 has a front retaining portion 125 located at the middle top of the horizontal wall portion 122 and a second retaining groove 126 recessed from the rear ends of both longitudinal sides of the horizontal wall portion 122. When the upper terminal module 110 is assembled to the lower terminal module 120, the front retaining portion 125 is inserted into the rear retaining groove 115, and the second retaining portion 116 engages with the second retaining groove 126.

[0028] Meanwhile, the lower insulator 12 is also provided with two extension arms 127 extending forward laterally from both ends of the transverse wall portion 122. Each extension arm 127 has a sliding groove 128 extending laterally through its front end face. The sliding groove 128 communicates with the insertion space 101 and is used to receive the aforementioned electronic card. Furthermore, the second latching groove 126 is formed by recessing forward from the transverse rear end face of the extension arm 127.

[0029] Combination Figure 7 As shown, the conductive terminal 20 has a holding portion 23 fixed within the insulating body 10, a contact arm 24 extending laterally forward from the holding portion 23, and a welding portion 25 extending from the bottom of the holding portion 23 out of the insulating body 10. The contact arm 24 has an arc-shaped contact portion 241 extending into the insertion space 101. When the electronic card is inserted into the insertion space 101, the contact portion 241 of the conductive terminal 20 makes point contact with the gold fingers of the electronic card, making the contact between the two more stable and preventing a break in the circuit.

[0030] Specifically, the retaining portion 23 has a horizontal portion 231 extending laterally and a vertical portion 232 extending vertically, the horizontal portion 231 and the vertical portion 232 being arranged perpendicularly to each other. The electronic card connector 100 includes an intermediate shielding plate 40 sandwiched between the upper insulator 11 and the lower insulator 12. In this embodiment, the intermediate shielding plate 40 is also located between the retaining portion 23 of the upper terminal 21 and the retaining portion of the lower terminal 22 to form electromagnetic shielding between them.

[0031] The contact arm 24 extends laterally forward from the horizontal portion 231 into the insertion space 101, and the longitudinal cross-section of the contact portion 241 is arc-shaped to facilitate point contact between the contact portion 241 of the conductive terminal 20 and the gold fingers of the electronic card. In this embodiment, the contact arm 24 of the upper terminal 21 extends downward at an angle into the insertion space 101, and the contact arm 24 of the lower terminal 22 extends upward at an angle into the insertion space 101. The contact portions 241 of the upper terminal 21 and the contact portions 241 of the lower terminal 22 are vertically opposite to each other to better contact the gold fingers of the electronic card. Simultaneously, the welding portions 25 of the upper terminal 21 and the welding portions 25 of the lower terminal 22 extend laterally in opposite directions from the bottom of the insulating body 10.

[0032] The metal housing 30 includes an upper housing 31 that shields the upper terminal module 110 and a lower housing 32 that shields the lower terminal module 120. The lower housing 32 is connected to the upper housing 31 to cover the upper terminal module 110 and the lower terminal module 120. The intermediate shielding sheet 40 is connected to both longitudinal sides of the lower housing 32 of the metal housing 30 to achieve an integrated electromagnetic shielding effect.

[0033] The upper housing 31 has a top wall 311 that covers the upper terminal module 110, two side walls 312 extending downward from the longitudinal sides of the top wall 311, and a rear end wall 313 extending downward from the lateral rear side of the top wall 311. The side walls 312 cover the longitudinal sides of the insulating body 10, and the longitudinal sides of the rear end wall 313 are connected to the side walls 312 and cover the lateral rear side of the insulating body 10. The lower housing 32 has a bottom wall 321 that covers the lower terminal module 120, a front end wall 322 extending downward from the lateral rear side of the bottom wall 321, and a retaining wall 323 bending upward from the longitudinal sides of the bottom wall 321. The front end wall 322 covers the lower front end of the lower terminal module 120 and is electrically connected to the side wall 312, and the retaining wall 323 is snapped onto the longitudinal sides of the lower insulator 12.

[0034] Furthermore, the upper housing 31 is also provided with an upper spring piece 314 that extends horizontally forward from the top wall 311 into the insertion space 101, and the lower housing 32 is also provided with a lower spring piece 324 that extends horizontally forward from the bottom wall 321 into the insertion space 101. The upper spring piece 314 and the lower spring piece 324 are arranged opposite to each other in the vertical direction, and the upper spring piece 314 and the lower spring piece 324 are used to guide the insertion of the electronic card.

[0035] The electronic card connector 100 includes a metal bracket 50 welded to a metal housing 30. The metal bracket 50 includes an upper bracket 51 at least partially attached to the top surface of the top wall 311 of the upper housing 31 and a lower bracket 52 at least partially attached to the bottom surface of the bottom wall 321 of the lower housing 32. The upper bracket 51 has a main board portion 511 that covers the upper spring piece 314 and peripheral walls 512 extending downward on both longitudinal sides and the transverse rear side of the main board portion 511. The main board portion 511 extends transversely forward beyond the front end of the upper spring piece 314 to protect the upper spring piece 314. The peripheral walls 512 are welded to the side walls 312 and the rear end wall 313 of the upper housing 31. The lower bracket 52 is welded to the bottom wall 321 of the lower housing 32 and covers the lower spring piece 324. At the same time, the lower bracket 52 extends transversely forward beyond the front end of the lower spring piece 324 to protect the lower spring piece 324.

[0036] Meanwhile, the electronic card connector 100 also includes an upper film 61 attached to the lower surface of the upper spring 314 and a lower film 62 attached to the upper surface of the lower spring 324. The upper film 61 is disposed corresponding to the contact portion 241 of the upper terminal 21, and the lower film 62 is disposed corresponding to the contact portion 241 of the lower terminal 22. The upper film 61 and the lower film 62 are polyimide films to achieve electrical insulation between the upper spring 314 / lower spring 324 and the contact portion 241 of the conductive terminal 20.

[0037] In this invention, the upper insulator 11 and the upper terminal 21 are integrally formed into an upper terminal module 110, and the lower insulator 12 and the lower terminal 22 are integrally formed into a lower terminal module 120. The upper terminal module 110 is assembled laterally forward onto the lower terminal module 120. This integral injection molding design ensures stable positioning of the conductive terminal 20, thereby achieving stable insertion of the electronic card connector 100.

[0038] In summary, the above are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model should still fall within the scope of the present utility model patent.

Claims

1. An electronic card connector comprising an elongated insulating body, a plurality of conductive terminals held by the insulating body, and a metal casing covering the outside of the insulating body, the conductive terminals comprising upper and lower terminals arranged in two rows in the longitudinal direction, the upper terminals being located above the lower terminals, the insulating body being provided with an upper insulating body holding the upper terminals and a lower insulating body holding the lower terminals; characterized in that: The upper insulator is integrally formed with an upper terminal module, and the lower insulator is integrally formed with a lower terminal module, the upper terminal module is assembled on the lower terminal module in a transverse direction.

2. The electronic card connector of claim 1, wherein: The upper insulator is provided with a vertical plate part extending in a vertical direction and a horizontal plate part extending in a transverse direction from a top of the vertical plate part, and the lower insulator is provided with a vertical wall part extending in a vertical direction and a horizontal wall part extending in a transverse direction from a top of the vertical wall part, the vertical plate part is assembled at a transverse rear end of the vertical wall part, and the horizontal plate part is above the horizontal wall part.

3. The electronic card connector of claim 2, wherein: The upper insulator is provided with a limiting column protruding forward from a front end of the vertical plate part and a first clamping part protruding forward from both longitudinal ends of the vertical plate part in a transverse direction, and the lower insulator is provided with a through hole penetrating through the vertical wall part in a transverse direction and a first clamping groove recessed forward from rear sides of both longitudinal ends of the vertical wall part, the limiting column is inserted into the through hole, and the first clamping part is clamped with the first clamping groove.

4. The electronic card connector of claim 2, wherein: The upper insulator is provided with a rear clamping groove recessed rearward from a transverse front end of the horizontal plate part and a second clamping part extending forward from both longitudinal ends of the horizontal plate part, and the lower insulator is provided with a front clamping part at a top of the horizontal wall part and a second clamping groove recessed forward from rear ends of both longitudinal sides of the horizontal wall part, the front clamping part is inserted into the rear clamping groove, and the second clamping part is clamped with the second clamping groove.

5. The electronic card connector of claim 4, wherein: The lower insulator is provided with two extension arms extending forward in a transverse direction from both longitudinal ends of the horizontal wall part, and the extension arms are provided with a sliding groove penetrating through a front end face in a transverse direction, the sliding groove is used for receiving an electronic card.

6. The electronic card connector of claim 1, wherein: The metal shell comprises an upper shell shielding above the upper terminal module and a lower shell shielding below the lower terminal module, and the lower shell is connected to the upper shell to cover the upper terminal module and the lower terminal module.

7. The electronic card connector of claim 6, wherein: The upper shell is provided with a top wall shielding above the upper terminal module, two side walls extending downward from both longitudinal sides of the top wall, and a rear end wall extending downward from a transverse rear side of the top wall, the side walls shield both longitudinal sides of the insulating body, and the rear end wall shields a transverse rear side of the insulating body; and the lower shell is provided with a bottom wall shielding below the lower terminal module and a front end wall extending downward from a transverse rear side of the bottom wall, the front end wall shields a lower front end of the lower terminal module and is connected to the side walls.

8. The electronic card connector of claim 7, wherein: The insulating body and the metal shell jointly form a plug-in space opening toward a transverse front end, the upper shell is provided with an upper elastic sheet extending into the plug-in space in a transverse direction and forward from the top wall, and the lower shell is provided with a lower elastic sheet extending into the plug-in space in a transverse direction and forward from the bottom wall, the upper elastic sheet and the lower elastic sheet are arranged opposite to each other in a vertical direction.

9. The electronic card connector of claim 8, wherein: The electronic card connector comprises a metal support welded on the metal shell, the metal support comprises an upper support at least partially attached to a top face of the top wall of the upper shell and a lower support at least partially attached to a bottom face of the bottom wall of the lower shell.

10. The electronic card connector of claim 9, wherein: The upper bracket is shielded above the upper elastic sheet and extends forward beyond the front end of the upper elastic sheet in the lateral direction, and the lower bracket is shielded below the lower elastic sheet and extends forward beyond the front end of the lower elastic sheet in the lateral direction.

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