Ultrathin storage communication connector

Abstract

The utility model provides an ultrathin storage communication connector, comprising a lengthwise insulation body provided with a lengthwise slot, and lengthwise side walls on the upper and lower sides of the slot are respectively provided with a plurality of terminal grooves; the plurality of terminals comprise an upper-layer terminal and a lower-layer terminal, the lower-layer terminal and the upper-layer terminal are inserted into the insulating body from the front side and the rear side of the insulating body respectively, each terminal comprises a holding part, a welding part and an elastic arm, the welding part and the elastic arm extend from the two ends of the holding part respectively, and the elastic arm of the lower-layer terminal is formed by obliquely extending upwards from the holding part of the lower-layer terminal; the inclined high end of the elastic arm of the lower-layer terminal is a contact part, the top surface of the contact part is a contact surface, the top surface of the contact part is located in the inclined upward extending direction of the top surface of the elastic arm of the lower-layer terminal, and the contact part and the elastic arm of the lower-layer terminal share the same top surface; the ultrathin storage communication connector can be made thinner and can improve high-frequency performance.

Description

Ultra-thin storage communication connector Technical Field

[0001] This utility model belongs to the field of connectors, specifically relating to an ultra-thin storage communication connector. Background Technology

[0002] Chinese patent CN202410172929.2 discloses a card edge connector, including an elongated insulating body, several conductive terminals fixed within the insulating body, and at least one gripper fixed within the insulating body for fixing to a printed circuit board.

[0003] The insulating body has two side walls extending along the longitudinal direction and two end walls connecting the ends of the two side walls along the transverse direction of the insulating body, thereby forming a central slot extending along the longitudinal direction (i.e., the X direction) for accommodating an electronic card; the insulating body has a key protruding in the central slot to cooperate with the corresponding groove (not shown) on the electronic card to prevent the electronic card from being inserted backwards.

[0004] The conductive terminals are arranged in two rows housed within the insulating body, including a first terminal inserted into the insulating body in a mating direction perpendicular to the longitudinal direction (i.e., the Y direction), and a second terminal inserted into the insulating body in the opposite direction to the insertion of the first terminal. The first terminal has a first holding portion held within the insulating body, a first contact portion extending from the first holding portion and protruding into the central slot, and a first solder portion extending from the first holding portion out of the insulating body for electrical connection with the aforementioned printed circuit board; the second terminal has a similar structure to the first terminal, having a second holding portion, a second contact portion, and a second solder portion.

[0005] Because the second contact portion of the aforementioned card edge connector is a raised structure protruding from the surface of the second terminal, the raised structure requires additional space between the first and second terminals to accommodate the electronic card, thereby increasing the height of the insulating body; furthermore, the raised structure also affects the high-frequency performance of the second terminal. Therefore, improvements are needed. Summary of the Invention

[0006] The purpose of this invention is to provide an ultra-thin storage communication connector to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the technical solution used in this utility model is as follows:

[0008] An ultra-thin storage communication connector includes: a longitudinally elongated insulating body having a longitudinally elongated slot recessed from the front to the rear for inserting an electronic card, and multiple terminal slots respectively provided in the longitudinally elongated sidewalls on the upper and lower sides of the slot.

[0009] Multiple terminals, including upper terminals and lower terminals, are inserted into the insulating body from the front and rear sides respectively. The upper terminals are respectively housed in the terminal slots on the upper side of the slot, and the lower terminals are respectively housed in the terminal slots on the lower side of the slot. Each terminal includes a retaining part, a welding part extending from both ends of the retaining part, and an elastic arm. The elastic arm of the lower terminal extends upward from the retaining part of the lower terminal at an angle. The inclined high end of the elastic arm of the lower terminal is a contact part, and the top surface of the contact part is a contact surface. The top surface of the contact part is located in the inclined upward extension direction of the top surface of the elastic arm of the lower terminal, and the contact part and the elastic arm of the lower terminal share the same top surface.

[0010] Furthermore, the top surface of the contact portion of the lower terminal and the end of the contact portion are provided with arc-shaped transition surfaces that make the top surface of the contact portion form a trapezoidal shape.

[0011] Furthermore, the welding portion of the lower terminal is formed by bending and extending downward from the holding portion of the lower terminal and in a direction away from the contact portion of the lower terminal.

[0012] Furthermore, the elastic arm of the upper terminal extends forward from the holding portion of the upper terminal, and the end of the elastic arm of the upper terminal bends downward and then upward to form a convex contact portion. The welding portion of the upper terminal bends downward from the holding portion of the upper terminal and extends away from the convex contact portion of the upper terminal.

[0013] Furthermore, both sides of the longitudinal sidewall on the upper side of the slot are connected to the longitudinal sidewall on the lower side of the slot via connecting walls. The length of the longitudinal sidewall on the lower side of the slot in the front-back direction is longer than the length of the longitudinal sidewall on the upper side of the slot in the front-back direction, and the length of the connecting wall in the front-back direction is the same as the length of the sidewall on the lower side of the slot in the front-back direction.

[0014] Furthermore, a foolproof part is provided inside the slot near one of the connecting walls, and the foolproof part connects the two longitudinal side walls.

[0015] Furthermore, a plurality of material scooping grooves are provided on the rear side of the insulating body at the position corresponding to the anti-fooling part, and the plurality of material scooping grooves are distributed at intervals along the longitudinal direction of the insulating body.

[0016] Furthermore, the terminal slots provided on the longitudinal sidewalls on both the upper and lower sides of the slot are all positioned to face the slot opening.

[0017] Furthermore, at least one side of the rear side of the insulating body is embedded with a fixing member.

[0018] Furthermore, the terminal slots that house each of the upper terminals extend through the rear side of the insulating body, and hot melt blocks are provided on both sides of each terminal slot on the rear side of the insulating body.

[0019] Compared with the prior art, the main advantages of this utility model are: by removing the protruding structure formed by the protrusion on the surface of the second terminal in the background technology, the inclined high end of the elastic arm of the lower terminal is directly the contact part, so that the height of the insulating body in the vertical direction of this utility model can be reduced, thereby making the connector of this utility model thinner. In addition, the lower terminal without the protruding structure can also improve the high frequency performance. Attached Figure Description

[0020] Figure 1 is a perspective view of the ultra-thin storage communication connector and circuit board of this utility model;

[0021] Figure 2 is an exploded perspective view of the ultra-thin storage communication connector;

[0022] Figure 3 is a three-dimensional assembly diagram of the ultra-thin storage communication connector;

[0023] Figure 4 is a three-dimensional view of the insulating body;

[0024] Figure 5 is a three-dimensional view of the insulating body from another angle;

[0025] Figure 6 is a perspective view of the lower terminal;

[0026] Figure 7 is a side view of the lower terminal;

[0027] Figure 8 is a three-dimensional view of the upper terminal;

[0028] Figure 9 is a cross-sectional view of the ultra-thin storage communication connector;

[0029] Figure 10 is a schematic diagram of the electronic card combined with Figure 9.

[0030] Reference numerals: Insulating body 1, slot 11, terminal slot 12, longitudinal side wall 13, connecting wall 14, foolproof part 15, material chute 16, hot melt block 17, terminal 2, holding part 21, welding part 22, elastic arm 23, convex contact part 24, contact part 25, arc transition surface 251, fastener 3, circuit board 4, electronic card 5. Detailed Implementation

[0031] To facilitate a better understanding of the purpose, structure, features, and effects of this utility model, the present utility model will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0032] As shown in Figures 1-10, the ultra-thin storage communication connector includes an elongated insulating body 1, a plurality of terminals 2 housed within the insulating body 1, and a fastener 3 held within the insulating body 1 for fixing to a circuit board 4.

[0033] The insulating body 1 has a longitudinally elongated slot 11 recessed from front to back for inserting an electronic card 5. Multiple terminal slots 12 are respectively provided in the longitudinally elongated sidewalls 13 on both the upper and lower sides of the slot 11. Both sides of the upper longitudinally elongated sidewall 13 of the slot 11 are connected to the lower longitudinally elongated sidewall 13 of the slot 11 via connecting walls 14. The length of the lower longitudinally elongated sidewall 13 in the front-to-back direction is longer than that of the upper longitudinally elongated sidewall 13 in the front-to-back direction, facilitating the smooth insertion of the electronic card 5 into the slot 11. The length of the connecting wall 14 in the front-to-back direction is the same as that of the lower sidewall of the slot 11 in the front-to-back direction. A foolproof part 15 is provided in the slot 11 near one of the connecting walls 14, connecting the two longitudinally elongated sidewalls 13, and is used to prevent the electronic card 5 from being inserted backwards. On the rear side of the insulating body 1, at positions corresponding to the anti-misalignment part 15, multiple material removal grooves 16 are provided. These grooves are spaced apart along the longitudinal direction of the insulating body 1, and serve to reduce the weight of the insulating body 1 and prevent warping. Terminal slots 12 located on the longitudinal sidewalls 13 on both the upper and lower sides of the slot 11 are open towards the slot 11. The terminal slots 12 on the upper longitudinal sidewall 13 of the slot 11 extend through the rear side of the insulating body 1, and heat-fused blocks 17 are provided on both sides of each terminal slot 12 on the rear side of the insulating body 1.

[0034] The plurality of terminals 2 include upper terminals and lower terminals. The lower terminals and upper terminals are inserted into the insulating body 1 from the front and rear sides of the insulating body 1, respectively. The upper terminals are respectively housed in the terminal slots 12 on the upper side of the slot 11, and the lower terminals are respectively housed in the terminal slots 12 on the lower side of the slot 11. Each terminal 2 includes a retaining part 21, a welding part 22 extending from both ends of the retaining part 21, and an elastic arm 23. The welding part 22 of the upper terminal is located on the rear side of the insulating body 1, and the welding part 22 of the lower terminal is located on the front side of the insulating body 1.

[0035] The elastic arm 23 of the upper terminal extends forward from the retaining portion 21 of the upper terminal. The end of the elastic arm 23 of the upper terminal bends downward and then upward to form a downwardly convex contact portion 24. The welding portion 22 of the upper terminal bends downward from the retaining portion 21 of the upper terminal and extends in a direction away from the downwardly convex contact portion 24 of the upper terminal (i.e., backward). The connection section between the retaining portion 21 and the welding portion 22 of the upper terminal is fixed by heat fusion by a hot melt block 17, so that the upper terminal is more firmly fixed in the insulating body 1.

[0036] The elastic arm 23 of the lower terminal extends upward at an incline from the rear end of the retaining portion 21 of the lower terminal. The inclined upper end of the elastic arm 23 of the lower terminal is the contact portion 25. The top surface of the contact portion 25 is the contact surface. The top surface of the contact portion 25 is located in the inclined upward extension direction of the top surface of the elastic arm 23 of the lower terminal, and the contact portion 25 and the elastic arm 23 of the lower terminal share the same top surface.

[0037] The contact portion 25 of the lower terminal has arc-shaped transition surfaces 251 on both sides of its top surface and at its end, forming a trapezoidal shape on its top surface. The welding portion 22 of the lower terminal is formed by bending and extending downward from the holding portion 21 of the lower terminal and in a direction away from the contact portion 25 of the lower terminal (i.e., forward).

[0038] Each of the two rear sides of the insulating body 1 is embedded and fixed with a fixing member 3.

[0039] Compared with the prior art, the beneficial effects of this utility model are mainly reflected in the following: the inclined high end of the elastic arm 23 of the lower terminal of this utility model is the contact part 25, the top surface of the contact part 25 is the contact surface, the top surface of the contact part 25 is located in the inclined upward extension direction of the top surface of the elastic arm 23 of the lower terminal, and the contact part 25 and the elastic arm 23 of the lower terminal share the same top surface. That is, the protruding structure formed by the protrusion of the second terminal surface in the prior art is eliminated, so that the inclined high end of the elastic arm 23 of the lower terminal is directly the contact part 25, so that the height of the insulating body 1 in the vertical direction of this utility model can be reduced, thereby making the connector of this utility model thinner. In addition, the lower terminal without the protruding structure can also improve the high frequency performance.

[0040] In other embodiments, the fastener 3 is embedded and fixed only on one rear side of the insulating body 1.

[0041] The present invention has been described above in conjunction with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations made in accordance with the essence of the present invention.

Claims

1. An ultra-thin storage communication connector, characterized in that, include: An elongated insulating body has an elongated slot recessed from the front to the rear for inserting an electronic card. Multiple terminal slots are respectively provided in the elongated side walls on the upper and lower sides of the slot. Multiple terminals include upper terminals and lower terminals. The lower terminals and upper terminals are inserted into the insulating body from the front and rear sides respectively. The upper terminals are correspondingly housed in the terminal slots on the upper side of the slot, and the lower terminals are correspondingly housed in the terminal slots on the lower side of the slot. Each terminal includes a holding part, a welding part extending from both ends of the holding part, and an elastic arm. The elastic arm of the lower terminal extends upward at an angle from the holding part of the lower terminal. The inclined high end of the elastic arm of the lower terminal is a contact part. The top surface of the contact part is a contact surface. The top surface of the contact part is located in the inclined upward extension direction of the top surface of the elastic arm of the lower terminal, and the contact part and the elastic arm of the lower terminal share the same top surface.

2. The ultra-thin storage communication connector according to claim 1, characterized in that: The lower terminal has arc-shaped transition surfaces on both sides of the top surface of the contact portion and at the end of the contact portion, which make the top surface of the contact portion form a trapezoidal shape.

3. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: The welding portion of the lower terminal is formed by bending and extending downward from the holding portion of the lower terminal and in a direction away from the contact portion of the lower terminal.

4. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: The elastic arm of the upper terminal extends forward from the holding portion of the upper terminal. The end of the elastic arm of the upper terminal bends downward and then upward to form a convex contact portion. The welding portion of the upper terminal bends downward from the holding portion of the upper terminal and extends away from the convex contact portion of the upper terminal.

5. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: Both sides of the upper longitudinal sidewall of the slot are connected to the lower longitudinal sidewall of the slot via connecting walls. The length of the lower longitudinal sidewall of the slot in the front-back direction is longer than that of the upper longitudinal sidewall of the slot in the front-back direction. The length of the connecting wall in the front-back direction is the same as that of the lower sidewall of the slot in the front-back direction.

6. The ultra-thin storage communication connector according to claim 5, characterized in that: A foolproof part is provided inside the slot near one of the connecting walls, and the foolproof part connects the two longitudinal side walls.

7. The ultra-thin storage communication connector according to claim 6, characterized in that: Multiple material chute slots are provided on the rear side of the insulating body at the positions corresponding to the anti-fooling part, and the multiple material chute slots are distributed at intervals along the longitudinal direction of the insulating body.

8. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: The terminal slots provided on the longitudinal sidewalls on both the upper and lower sides of the slot are all positioned to face the slot opening.

9. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: At least one side of the rear side of the insulating body is embedded with a fixing member.

10. The ultra-thin storage communication connector according to claim 1 or 2, characterized in that: The terminal slots that accommodate each of the upper terminals extend through the rear side of the insulating body, and hot melt blocks are provided on both sides of each terminal slot on the rear side of the insulating body.

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