CN109830822B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
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- CN109830822B CN109830822B CN201910202298.7A CN201910202298A CN109830822B CN 109830822 B CN109830822 B CN 109830822B CN 201910202298 A CN201910202298 A CN 201910202298A CN 109830822 B CN109830822 B CN 109830822B
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- slot
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- electrical connector
- card
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Abstract
The invention discloses an electric connector, which is arranged on a circuit board and is used for plugging an electronic card, and the electric connector comprises: the first body is arranged on the circuit board; the second body is pivoted with the first body, a slot is formed between the two second bodies for inserting the electronic card, and the second body is provided with a blocking part and a pushing part positioned at the bottom of the slot; two conductive terminals, located on the left and right sides of the slot, each conductive terminal having a fixing portion fixed on the first body, a guiding connection portion formed by the downward extension of the fixing portion for electrically connecting the circuit board, a spring arm connected above the fixing portion and entering the second body, the spring arm having a contact portion for contacting the electronic card and a contact portion abutting against the blocking portion; when the card is withdrawn, the two second bodies are rotated outwards in the left and right directions, the blocking portion abuts against the abutting portion to drive the contact portion to be separated from the electronic card, and the pushing portion pushes the electronic card upwards. The electric connector can realize the extraction of the electronic card under the condition of zero extraction force, and reduces the abrasion to the conductive terminal.
Description
[ technical field ] A method for producing a semiconductor device
The present invention relates to an electrical connector, and more particularly to an electrical connector for inserting an electronic card.
[ background of the invention ]
US5795171 discloses an electrical connector, which has a body mounted on a flexible device (flexible means) and having a slot for receiving an electronic card, the body is divided into two halves along the slot, the two halves have pushing portions at the bottom of the slot, and conductive channels (conductive traces) are metal layers plated on the inner surfaces of the body at both sides of the slot. When the card is withdrawn, the flexible device is bent, so that the two half parts of the body positioned at the two sides of the slot and the conductive channel are separated and away from each other, and meanwhile, the pushing part at the bottom of the body pushes the electronic card upwards, so that the electronic card is withdrawn under the action of zero plugging force. However, this solution requires the electrical connector to be mounted on a flexible device, which greatly limits the application scenarios of the electrical connector.
Therefore, there is a need for an improved electrical connector that overcomes the above problems.
[ summary of the invention ]
In view of the problems faced by the background art, the present invention provides an electrical connector that achieves zero pull-out force and is applicable in most scenarios.
In order to achieve the purpose, the invention adopts the following technical means:
an electrical connector mounted on a circuit board for plugging an electronic card, comprising: the first body is arranged on the circuit board; the two second bodies are pivoted to the first body, a slot is formed between the two second bodies and used for inserting the electronic card, and the second body is provided with a blocking part and a pushing part positioned at the bottom of the slot; the conductive terminals are positioned on the left side and the right side of the slot, each conductive terminal is provided with a fixing part fixed on the first body, a guiding and connecting part formed by downward extension of the fixing part and used for electrically connecting the circuit board, and an elastic arm connected above the fixing part and entering the second body, wherein the elastic arm is provided with a contact part used for contacting the electronic card and a butting and connecting part butted with the blocking part; when the card is withdrawn, the two second bodies are rotated outwards in the left-right direction, the blocking part is abutted against the abutting part to drive the contact part to be separated from the electronic card, and meanwhile, the pushing part pushes the electronic card upwards.
Furthermore, each second body is provided with an inner side face, an outer side face and a bottom face which are oppositely arranged, the slots are formed between the inner side faces of the two second bodies, the bottom face and the outer side face of each second body are connected through an arc face, and the arc face contacts with the first body when the second bodies rotate.
Furthermore, each second body protrudes outwards on one side away from the slot to form a pulling part.
Furthermore, the pulling part is upwards obliquely and convexly extended, and the highest point of the pulling part is higher than the top end of the slot.
Furthermore, the elastic arm comprises a connecting part connected with the fixing part, a first bending part connected above the connecting part and arched towards the pushing part, and a second bending part connected above the first bending part and arched towards the direction far away from the slot, and the contact part is connected above the second bending part.
Further, the first bending portion abuts against the corresponding pushing portion.
Furthermore, two ends of each second body are provided with two vertical parts protruding upwards, and a guide groove is formed between two adjacent vertical parts in the two second bodies and used for guiding the electronic card to be inserted into the slot.
Furthermore, the first body is provided with a containing groove which is recessed downwards and used for containing the two second bodies, and two side walls are formed on the left side and the right side of the containing groove.
Further, the side wall has an inner wall surface facing the second body in the left-right direction, the inner wall surface being disposed obliquely outward from bottom to top.
Further, the first body has two end walls connected to the two side walls, the two end walls are located at two opposite ends of the accommodating groove, and the two second bodies are pivoted to the end walls.
Furthermore, each second body has deviating from one side of slot is outwards protruding to be stretched and is wrenched the portion of moving that forms, the lateral wall is equipped with a yield opening of undercut, is used for when the second body is outwards rotatory for wrenching the portion and providing the space of stepping down.
Furthermore, each second body is provided with a protruding part protruding towards each other, and the two protruding parts of the two second bodies form a fool-proof part together for matching with a notch on the electronic card.
Compared with the prior art, the invention has the following beneficial effects: the first body is arranged on the circuit board, the two second bodies are pivoted on the first body and can rotate outwards, a user presses the pulling part downwards to enable the second bodies pivoted on the first body to rotate outwards, the width of the slot is enlarged, the pushing part pushes the electronic card upwards to enable the electronic card to move upwards, meanwhile, the blocking part drives the contact part to move outwards through abutting against the abutting part to be separated from the electronic card, the card withdrawing with zero withdrawal force is realized, and the coating of the contact part is prevented from being worn in the card withdrawing process.
[ description of the drawings ]
Fig. 1 is an exploded view of the electrical connector of the present invention;
FIG. 2 is an enlarged view of a portion of the first body of FIG. 1;
FIG. 3 is a perspective view of the second body of FIG. 1;
FIG. 4 is a perspective view of the electrical connector of the present invention soldered to a circuit board without an electronic card inserted therein;
FIG. 5 is a perspective view of the electronic card of FIG. 4 inserted into the electrical connector;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a perspective view of FIG. 4 illustrating the second body being pulled to push the electronic card upward;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7;
fig. 9 is a schematic view of the electronic card of fig. 8 after being completely removed.
Detailed description of the embodiments reference is made to the accompanying drawings in which:
The guiding slot 132 is pivoted with the first terminal slot 141 of the bottom plate 14 of the hole 131
The outer side surface 22 of the inner side surface 21 of the second body 2 is pivoted with a shaft 23
The vertical portion 24 and the guide groove 241 push the protrusion 26 of the portion 25
Fixing portion 41 of conductive terminal 4 of fool-proof portion F of slot 3
First curved portion 432 of connecting portion 431 of leading portion 42 and spring arm 43
The second curved portion 433 contact portion 434 abuts on the circuit board 200 of the 435
[ detailed description ] embodiments
For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.
Referring to fig. 1 and 4, an electrical connector 100 of the present invention is mounted on a circuit board 200 for receiving an electronic card 300. The electrical connector 100 includes a first body 1, two second bodies 2 and two rows of conductive terminals 4, the first body 1 is mounted on the circuit board 200, the two second bodies 2 are pivotally connected to the first body 1, a longitudinal slot 3 is formed between the two second bodies 2 for inserting the electronic card 300, and the two rows of conductive terminals 4 are located on the left and right sides of the slot 3 and are accommodated in the first body 1 and the second body 2 simultaneously.
As shown in fig. 1, the first body 1 is made of an insulating material, and has a receiving groove 11 formed by being recessed downward from a top end thereof, the receiving groove 11 is used for receiving the second bodies 2, the first body 1 has two side walls 12 located at left and right sides of the receiving groove 11, each of the side walls 12 has an inner wall surface 121 facing the receiving groove 11 and an outer wall surface 122 departing from the receiving groove 11, the inner wall surface 121 is inclined outward from the bottom to the top, so that a thickness of the side wall 12 is gradually reduced from the bottom to the top, and a distance between the two side walls 12 facing each other is gradually increased from the bottom to the top. The lateral wall 12 is located and corresponds the outside of second body 2 (supplementary refer to fig. 8), each be equipped with one in the middle of the lateral wall 12 and let a position opening 123, let a position opening 123 from corresponding the top of lateral wall 12 is sunken to establish and is formed downwards, and runs through the correspondence in the left and right directions lateral wall 12, let a position opening 123 be used for corresponding provide when second body 2 is outside rotatory and let a position the space.
As shown in fig. 1 and 2, at two longitudinal ends of the first body 1, the first body 1 has two end walls 13 respectively connected to the two side walls 12, two pivot holes 131 pivotally connected to the two second bodies 2 are recessed in an inner surface of each end wall 13, and a vertically extending guide slot 132 is connected to an upper portion of each pivot hole 131 for guiding the second body 2 to be downwardly mounted to the pivot hole 131.
As shown in fig. 1, the first body 1 further includes a bottom plate 14 located at the bottom of the accommodating groove 11, the bottom plate 14 connects the two side walls 12 and the two end walls 13, the bottom plate 14 is flat, and has a plurality of first terminal grooves 141 vertically penetrating the bottom plate 14, and the plurality of first terminal grooves 141 are arranged in two parallel rows in the left-right direction.
As shown in fig. 1, 3 and 4, each of the second bodies 2 is made of an insulating material, each of the second bodies 2 has an inner side 21 and an outer side 22 opposite to each other, each of the second bodies 2 is rotatable outward relative to the first body 1 in a left-right direction and is in an inclined state, and when the second bodies 2 are rotated inward, the slots 3 are formed between the inner sides 21 of the second bodies 2. The outer side 22 is located on a side of the second body 2 facing away from the slot 3, opposite to the inner side 21 facing the slot 3.
As shown in fig. 3 and 4, two ends of the second body 2 are provided with two pivot shafts 23 protruding along the longitudinal direction and matching with the two corresponding pivot holes 131. Each second body 2 further has two vertical portions 24 protruding upwards, the two vertical portions 24 are located at two lengthwise ends of the second body 2, when the second bodies 2 rotate relatively inwards and are in a vertical state, a guide groove 241 extending vertically is formed between the two vertical portions 24 adjacent to each other on the left and right in the second bodies 2, and the guide groove 241 is communicated with the slot 3 to guide the electronic card 300 to be inserted into the slot 3 from top to bottom.
As shown in fig. 3 and 8, each of the second bodies 2 has a pushing portion 25 protruding from the inner side surface 21 to the bottom of the slot 3, when the second body 2 is not rotated, the two pushing portions 25 abut against each other, the top surfaces of the two pushing portions 25 are used as the bottom surface of the slot 3, and the bottom of each pushing portion 25 is set to be arc-shaped, so as to give way to the other pushing portion 25 when the second body 2 is rotated.
As shown in fig. 1, fig. 3 and fig. 4, the two second bodies 2 further have a protruding portion 26 protruding from the corresponding inner side surface 21 toward each other, the protruding portion 26 is located in the slot 3, and the two protruding portions 26 of the two second bodies 2 together form a fool-proof portion F for matching with a notch (not numbered) on the electronic card 300. The fool-proof portion divides the slot 3 into two portions with different lengths in the longitudinal direction, so as to prevent the electronic card 300 from being inserted into the slot 3 by mistake.
As shown in fig. 4 and 6, each of the second bodies 2 further has a plurality of second terminal grooves 27 arranged in the longitudinal direction, and the second terminal grooves 27 communicate with the corresponding first terminal grooves 141 downward and with the insertion grooves 3 in the left-right direction. Each second terminal groove 27 is further provided with a blocking portion 271, the blocking portion 271 is integrally formed with the second body 2, and the blocking portion 271 is disposed near the top end of the second body 2.
As shown in fig. 4, fig. 6 and fig. 8, each of the second bodies 2 has a pulling portion 28 formed by the outward and outward inclined protrusion of the outer side surface 22, the pulling portion 28 is received in the corresponding abdicating opening 123 and passes through the abdicating opening 123, the highest point of the pulling portion is higher than the top end of the slot 3, and the operator can press the pulling portion 28 downwards to rotate the second body 2 outwards in the left-right direction, and at the same time, the pushing portion 25 tilts upwards. The bottom surface of second body 2 with connect through an cambered surface 29 between the lateral surface 22, cambered surface 29 is the arc surface, works as when second body 2 is rotatory cambered surface 29 contacts first body 1 so set up with the convenience second body 2 is outside rotatory.
As shown in fig. 6 and 8, each of the conductive terminals 4 has a fixing portion 41 fixed to the first terminal groove 141, and a conductive portion 42 extending downward from the fixing portion 41 and beyond the first body 1 for electrically connecting the circuit board 200. An elastic arm 43 extending upward from the fixing portion 41 into the second terminal groove 27 of the second body 2. The elastic arm 43 includes a connection portion 431 connected to the fixing portion 41, a first curved portion 432 connected to the upper side of the connection portion 431 and curved toward the pushing portion 25, and a second curved portion 433 connected to the upper side of the first curved portion 432 and curved away from the insertion slot 3, the elastic arm 43 further includes a contact portion 434 connected to the upper side of the second curved portion 433, and an abutting portion 435 connected to the upper side of the contact portion 434, the connection portion 431 is bent from the fixing portion 41 and formed by extending upward in an inclined manner toward the insertion slot 3, and the first curved portion 432 abuts against the pushing portion 25 in the second terminal slot 27. The abutting portion 435 is also located at the end of the elastic arm 43, and abuts against the stopper portion 271 in the left-right direction, and the abutting portion 435 is located farther from the slot 3 than the corresponding stopper portion 271. The surface of the conductive terminal 4 is also provided with a plating layer (not shown) for improving its own performance.
As shown in fig. 4 to 6, when the second body 2 is in a vertical state, i.e. in a closed state, the electronic card 300 is inserted into the insertion slot 3, the bottom of the electronic card 300 is downwardly abutted against the pushing portion 25, the contact portions 434 at the left and right sides of the insertion slot 3 are abutted against conductive elements (not shown) at the left and right sides of the electronic card 300, and if the electronic card 300 is directly pulled out at this time, the friction force between the contact portions 434 and the electronic card 300 needs to be overcome, which is not easy to pull out the card. In addition, under test conditions, the electronic card 300 needs to be frequently inserted and pulled, and the plating of the contact portions 434 is easily worn by the frequent friction between the contact portions 434 and the electronic card 300.
As shown in fig. 7 and 8, the user presses the pulling portion 28 to rotate the second body 2 pivoted to the first body 1 outward, the width of the slot 3 is enlarged, the pushing portion 25 pushes the electronic card 300 upward to move the electronic card 300 upward, and the stopping portion 271 abuts against the abutting portion 435 to drive the contact portion 434 to move outward, and the elastic arm 43 elastically deforms outward. In the present embodiment, after the included angle between the second body 2 and the electronic card 300 is greater than 6 °, the contact portion 434 is completely separated from the electronic card 300. When the outer side surface 22 of the second body 2 abuts against the inner wall surface 121 corresponding to the sidewall 12, that is, in the present embodiment, when the included angle between the second body 2 and the electronic card 300 is equal to 10 °, the second body 2 rotates outwards to a maximum value. Therefore, in order to extract the electronic card 300 with zero extraction force, the card extraction is performed when the included angle between the second body 2 and the electronic card 300 is between 6 ° and 10 °. Of course, in other embodiments, on the premise that the elastic arm 43 is elastically deformed, the rotation angle of the second body 2 under the condition of zero pull-out force can be changed by changing the inclination angle of the inner wall surface 121.
As shown in fig. 9, after the electronic card 300 is pulled out, the pulling of the pulling portion 28 is stopped, and the elastic force accumulated by the outward bending of the elastic arm 43 is transmitted to the stopping portion 271 through the abutting portion 435, so that the elastic arm 43 rebounds and resets to drive the second bodies 2 to rotate inward until the second bodies 2 are attached to each other.
The electrical connector 100 of the present invention has the following beneficial effects:
(1) the first body 1 is mounted on the circuit board 200, the two second bodies 2 are pivoted to the first body 1 and can rotate outwards, the user presses the pulling part 28 downwards to make the second bodies 2 pivoted to the first body 1 rotate outwards, the width of the slot 3 is enlarged, the pushing part 25 pushes the electronic card 300 upwards to move the electronic card 300 upwards, and meanwhile, the blocking part 271 pushes the abutting part 435 to drive the contact part 434 to move outwards to be separated from the electronic card 300, so that zero-withdrawal-force card withdrawal is realized, and the plating layer of the contact part 434 is prevented from being worn in the card withdrawal process.
(2) In the card withdrawing process, the first bending portion 432 is bent outward, one side of the first bending portion 432 close to the pushing portion 25 is stretched outward, the pulling portion 28 stops being pulled after the electronic card 300 is pulled out, and the elastic force accumulated by the outward bending of the first bending portion 432 is transmitted to the blocking portion 271 through the abutting portion 435, so that the elastic arm 43 rebounds to reset, drives the two second bodies 2 to rotate inward until the two second bodies 2 are attached to each other, and finally, the automatic reset of the electrical connector 100 after the card withdrawing is realized.
(3) The bottom surface of second body 2 with connect through an arc surface 29 between the lateral surface 22, arc surface 29 is as when second body 2 is rotatory with the contact surface of first body 1, so set up with the convenience second body 2 is outside rotatory.
(4) The bottom of each pushing portion 25 is arc-shaped, so as to provide a way for the other pushing portion 25 when the second body 2 is rotated.
The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and drawings are included in the scope of the present invention.
Claims (12)
1. An electrical connector is mounted on a circuit board for plugging an electronic card, comprising:
the first body is arranged on the circuit board;
the two second bodies are pivoted to the first body, a slot is formed between the two second bodies and used for inserting the electronic card, and the second body is provided with a blocking part and a pushing part positioned at the bottom of the slot;
the conductive terminals are positioned on the left side and the right side of the slot, each conductive terminal is provided with a fixing part fixed on the first body, a guiding connection part formed by downward extension of the fixing part and used for electrically connecting the circuit board, and an elastic arm connected above the fixing part and entering the second body, the elastic arm is provided with a contact part used for contacting the electronic card and an abutting part abutted against the blocking part, the elastic arm comprises a connecting part connected with the fixing part and a first bending part connected above the connecting part and bent outwards, and the first bending part is close to the slot relative to the fixing part;
when the card is withdrawn, the two second bodies are outwards rotated in the left-right direction, the blocking part abuts against the abutting part to drive the contact part to be separated from the electronic card, meanwhile, the pushing part upwards pushes the electronic card, the first bending part outwards bends and accumulates elastic force, after the card withdrawal is completed, the first bending part rebounds and resets, and the elastic force is transmitted to the blocking part through the abutting part to drive the two second bodies to inwards rotate.
2. The electrical connector of claim 1, wherein: each second body is provided with an inner side face, an outer side face and a bottom face which are oppositely arranged, the slot is formed between the inner side faces of the two second bodies, the bottom face and the outer side face of each second body are connected through an arc face, and the arc face contacts the first body when the second bodies rotate.
3. The electrical connector of claim 1, wherein: each second body protrudes outwards at one side departing from the slot to form a pulling part.
4. The electrical connector of claim 3, wherein: the pulling part is upwards inclined and convexly extends, and the highest point of the pulling part is higher than the top end of the slot.
5. The electrical connector of claim 1, wherein: the elastic arm comprises a second bending part which is connected above the first bending part and is arched towards the direction far away from the slot, and the contact part is connected above the second bending part.
6. The electrical connector of claim 5, wherein: the first bending part abuts against the corresponding pushing part.
7. The electrical connector of claim 1, wherein: two ends of each second body are provided with two vertical parts which protrude upwards, and a guide groove is formed between two adjacent vertical parts in the two second bodies and used for guiding the electronic card to be inserted into the slot.
8. The electrical connector of claim 1, wherein: the first body is provided with a containing groove which is concave downwards and contains the two second bodies, and two side walls are formed on the left side and the right side of the containing groove.
9. The electrical connector of claim 8, wherein: the side wall has an inner wall surface facing the second body in the left-right direction, and the inner wall surface is arranged obliquely outward from bottom to top.
10. The electrical connector of claim 8, wherein: the first body is provided with two end walls connected with the two side walls, the two end walls are positioned at two opposite ends of the containing groove, and the two second bodies are pivoted on the end walls.
11. The electrical connector of claim 8, wherein: each the second body has a portion of wrenching that one side that deviates from the slot is outside protruding to be stretched and is formed, the lateral wall is equipped with a sunken opening of stepping down, is used for when the second body outwards rotates for the portion of wrenching provides the space of stepping down.
12. The electrical connector of claim 1, wherein: each second body is provided with a protruding part protruding towards each other, and the two protruding parts of the two second bodies form a fool-proof part together for matching with a notch on the electronic card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202298.7A CN109830822B (en) | 2019-03-18 | 2019-03-18 | Electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910202298.7A CN109830822B (en) | 2019-03-18 | 2019-03-18 | Electrical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109830822A CN109830822A (en) | 2019-05-31 |
| CN109830822B true CN109830822B (en) | 2021-01-26 |
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ID=66870299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202298.7A Active CN109830822B (en) | 2019-03-18 | 2019-03-18 | Electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109830822B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3130351A (en) * | 1961-09-14 | 1964-04-21 | George J Giel | Modular circuitry apparatus |
| EP0032614B1 (en) * | 1979-12-18 | 1984-02-01 | AMP INCORPORATED (a New Jersey corporation) | Zero insertion force electrical connector |
-
2019
- 2019-03-18 CN CN201910202298.7A patent/CN109830822B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3130351A (en) * | 1961-09-14 | 1964-04-21 | George J Giel | Modular circuitry apparatus |
| EP0032614B1 (en) * | 1979-12-18 | 1984-02-01 | AMP INCORPORATED (a New Jersey corporation) | Zero insertion force electrical connector |
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| Publication number | Publication date |
|---|---|
| CN109830822A (en) | 2019-05-31 |
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