CN220253648U - Self-locking type plug connector, flexible circuit board and FPC (flexible printed circuit) connection structure - Google Patents
Self-locking type plug connector, flexible circuit board and FPC (flexible printed circuit) connection structure Download PDFInfo
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- CN220253648U CN220253648U CN202321439364.0U CN202321439364U CN220253648U CN 220253648 U CN220253648 U CN 220253648U CN 202321439364 U CN202321439364 U CN 202321439364U CN 220253648 U CN220253648 U CN 220253648U
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- circuit board
- flexible circuit
- locking
- fpc
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- 239000002184 metal Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
Abstract
The utility model relates to the technical field of connectors, and particularly discloses a self-locking type plug connector, a flexible circuit board and an FPC (flexible printed circuit) connecting structure, wherein the self-locking type plug connector comprises: the connector base is provided with an FPC slot for inserting a flexible circuit board, a through notch for communicating the FPC slot to the external space of the connector base, and a clamping part positioned in the FPC slot; the unlocking part is provided with an unlocking part which extends into the FPC slot through the through notch; the clamping part is used for being clamped with the flexible circuit board; and the unlocking part is driven to drive the unlocking part to downwards prop against the flexible circuit board, so that the flexible circuit board is separated from the clamping part. The self-locking type plug connector, the flexible circuit board and the FPC connecting structure can solve the problem that the flexible circuit board is easily pulled out of the connector due to misoperation in the prior art.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a self-locking plug connector, a flexible circuit board and an FPC (flexible printed circuit) connecting structure.
Background
Generally, a metal terminal is arranged in the connector, and after the flexible circuit board is inserted into the connector, the metal terminal is propped against a golden finger on the flexible circuit board, so that communication connection between the connector and the flexible circuit board can be realized, and relative positioning between the flexible circuit board and the connector can be completed.
In practice, it has been found that the manner in which the relative positioning of the metal terminals and the gold fingers is maintained by means of friction is not reliable, for example, when a user pulls the flexible circuit board carelessly, it is easy to pull the flexible circuit board out of the connector, resulting in interruption of signal transmission.
Therefore, improvements to the existing connectors and flexible circuit boards are needed to solve the problem in the prior art that the flexible circuit board is pulled out of the connector easily due to misoperation.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is presently known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present utility model is to provide a self-locking plug connector, a flexible circuit board and an FPC connection structure, which can solve the problem that the flexible circuit board is easily pulled out of the connector by misoperation in the prior art.
To achieve the above object, in one aspect, a self-locking plug connector is provided, including:
the connector base is provided with an FPC slot for inserting a flexible circuit board, a through notch for communicating the FPC slot to the external space of the connector base, and a clamping part positioned in the FPC slot;
the unlocking part is provided with an unlocking part which extends into the FPC slot through the through notch;
wherein,
the clamping part is used for being clamped with the flexible circuit board;
and the unlocking part is driven to drive the unlocking part to downwards prop against the flexible circuit board, so that the flexible circuit board is separated from the clamping part.
Optionally, the top wall of the FPC socket protrudes downwards and forms the locking part;
or, an elastic arm is formed on the top wall of the FPC slot, and the clamping part is positioned on the elastic arm.
Optionally, a surface of the locking part facing the notch of the FPC slot is a first inclined guide surface;
the distance from the first inclined guide surface to the notch of the FPC slot is gradually increased from top to bottom.
Optionally, an avoidance groove for the flexible circuit board to pass through is arranged below the clamping part.
Optionally, the slot wall of the slot near the notch of the FPC slot is a second inclined guide surface, and the distance from the second inclined guide surface to the notch of the FPC slot increases gradually from top to bottom.
Optionally, the unlocking piece further includes:
the pressing plate is positioned above the connector base, and a spacing space is arranged between the bottom surface of the pressing plate and the top surface of the connector base;
the fixing part is fixedly connected with the connector base;
the upper end of the U-shaped elastic arm is connected with the pressing plate, and the lower end of the U-shaped elastic arm is connected with the fixing part;
the unlocking part is positioned at the connecting position of the pressing plate and the U-shaped spring arm and extends downwards.
Optionally, the fixing portion is provided with a plurality of limiting inserts protruding in a direction perpendicular to the insertion and extraction direction of the flexible circuit board and embedded in the connector base.
On the other hand, a flexible circuit board is provided, which is used for being connected with any self-locking type plug connector in a plug-in mode, and the flexible circuit board is provided with a locking groove which is clamped with a locking part of the self-locking type plug connector.
Optionally, two sides of one end of the flexible circuit board inserted into the self-locking plug connector are respectively provided with one locking groove, and one side of the locking groove, which is close to the self-locking plug connector, is provided with a pressure-bearing part;
when the flexible circuit board is clamped with the clamping part, the unlocking part is positioned right above the pressure bearing part.
In still another aspect, an FPC connection structure is provided, including any one of the self-locking pluggable connectors and the flexible circuit board.
The utility model has the beneficial effects that: when the flexible circuit board is required to be inserted into the self-locking type plug-in connector, a user inserts the flexible circuit board into the FPC slot, and after the flexible circuit board is inserted into place, the flexible circuit board is clamped by the clamping part, and at the moment, even if the flexible circuit board is pulled from the outside, the flexible circuit board cannot be pulled out of the locking type connector;
when the flexible circuit board is required to be pulled out, the unlocking piece can be pressed downwards, so that the unlocking part is propped against the flexible circuit board downwards until the flexible circuit board is separated from the clamping part, and then the flexible circuit board can be pulled out outwards;
therefore, the self-locking type plug connector, the flexible circuit board and the FPC connecting structure provided by the utility model can be used for pulling out the flexible circuit board only by pressing the unlocking piece, so that the problem that the flexible circuit board is pulled out of the connector easily due to misoperation in the prior art can be solved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is an overall schematic diagram of an FPC connection structure provided in embodiment 1;
fig. 2 is an exploded schematic view of the FPC connection structure provided in embodiment 1;
fig. 3 is a schematic cross-sectional view of the FPC connection structure provided in embodiment 1;
fig. 4 is a schematic cross-sectional view of the FPC connection structure provided in embodiment 2.
In the figure:
1. a flexible circuit board; 101. a locking groove; 102. a pressure-bearing part;
2. self-locking plug connectors;
201. a connector base; 2011. an FPC slot; 2012. a through notch; 2013. a locking part; 2013a, a first inclined guide surface; 2014. an elastic arm; 2015. an avoidance groove; 2015a, a second inclined guide surface;
202. an unlocking member; 2021. pressing the plate; 2022. a fixing part; 2022a, limit inserts; 2023. a U-shaped spring arm; 2024. an unlocking part;
203. a metal terminal.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the utility model.
The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.
The utility model provides a self-locking type plug connector, a flexible circuit board and an FPC (flexible printed circuit) connecting structure, which are suitable for application scenes of data transmission and can solve the problem that the flexible circuit board is easily pulled out of the connector due to misoperation in the prior art.
Various embodiments of the self-locking type plug connector according to the present utility model will be described with reference to the accompanying drawings, and examples 1 to 2, in which the self-locking type plug connector according to the following embodiments is applicable to the flexible circuit board and the FPC connection structure as described above.
Example 1
Referring to fig. 1 to 3, in the present embodiment, the FPC connection structure includes a flexible circuit board 1 and a self-locking plug connector 2 that is plug-connected with the flexible circuit board 1.
Wherein, a plurality of golden fingers (the golden fingers are positioned on the bottom surface of the flexible circuit board 1 and are not shown in the drawing) are arranged in the middle of the end part of the flexible circuit board 1, and locking grooves 101 are arranged on both sides of the end part of the flexible circuit board 1, and for convenience of description, the part of the edge position of the flexible circuit board 1, which is positioned near the self-locking type plug connector 2, of the locking grooves 101 is called as a pressure-bearing part 102.
The self-locking plug connector 2 comprises a connector base 201, an unlocking member 202, and a plurality of metal terminals 203.
The connector base 201 is provided with an FPC slot 2011 into which the flexible circuit board 1 is inserted, a through notch 2012 that communicates the FPC slot 2011 to an external space of the connector base 201, and a locking portion 2013 located in the FPC slot 2011.
The unlocking piece 202 is provided with an unlocking part 2024 which extends into the FPC slot 2011 through the through notch 2012.
The metal terminals 203 are fixed in the connector base 201 by injection molding, and the top of each metal terminal 203 extends into the FPC slot 2011, so that when the flexible circuit board 1 is inserted into the FPC slot 2011, the gold finger can abut against the corresponding metal terminal 203.
In this embodiment, the locking portion 2013 is configured to be locked with the flexible circuit board 1, specifically, a top wall of the FPC socket 2011 protrudes downward and forms the locking portion 2013.
Further, a recess 2015 is provided below the locking portion 2013 to allow the flexible circuit board 1 to pass through. Optionally, a distance between the bottom surface of the locking portion 2013 and the bottom surface of the avoidance groove 2015 is greater than a thickness of the flexible circuit board 1.
In this embodiment, the groove wall of the groove 2015 near the notch of the FPC slot 2011 is a second inclined guide surface 2015a, and the distance from the second inclined guide surface 2015a to the notch of the FPC slot 2011 gradually increases from top to bottom, so that when the flexible circuit board 1 is pulled out, the pressure-bearing portion 102 can enter the FPC slot 2011 from the groove 2015 along the second inclined guide surface 2015a, and then be pulled out through the notch of the FPC slot 2011.
In this embodiment, the unlocking member 202 is driven to drive the unlocking portion 2024 to abut against the flexible circuit board 1 downward, so that the flexible circuit board 1 is separated from the locking portion 2013.
Specifically, when the flexible circuit board 1 needs to be inserted into the self-locking type plug connector 2, the procedure is as follows:
s101: initially, the user gradually inserts the flexible circuit board 1 into the FPC socket 2011 until the end surface of the flexible circuit board 1 contacts the locking portion 2013;
s102: the user continues to forcefully insert the flexible circuit board 1 into the self-locking type plug connector 2, at which time:
on the one hand, the middle position of the end of the flexible circuit board 1 is connected with each metal terminal 203 to continuously extend downwards in the FPC slot 2011, and synchronously, the golden finger on the flexible circuit board 1 is gradually propped against and conducted with each metal terminal 203;
on the other hand, since the locking portion 2013 is directly fixed to the top wall of the FPC socket 2011, when the flexible circuit board 1 is continuously inserted into the self-locking type plug connector 2, the locking portion 2013 will not be displaced, and accordingly, the pressure-bearing portion 102 on the flexible circuit board 1 will be bent and deformed downward to enter the avoiding groove 2015;
s103: when the flexible circuit board 1 is continuously inserted into the FPC slot 2011 to the limit position:
on the one hand, the golden finger on the flexible circuit board 1 and each metal terminal 203 are sufficiently abutted against each other and conducted;
on the other hand, the pressure-bearing portion 102 bends downward from the left side of the locking portion 2013, deforms and passes through the avoiding groove 2015 below the locking portion 2013, and finally moves to the right side of the locking portion 2013, and returns to deform after moving to the right side of the locking portion 2013, and returns upward to abut against the right end surface of the locking portion 2013 (at this time, the unlocking portion 2024 is located directly above the pressure-bearing portion 102), which is understood that, because of the clamping effect between the pressure-bearing portion 102 and the locking groove 101, even if the flexible circuit board 1 is pulled outward, the flexible circuit board 1 is difficult to be pulled out.
When the flexible circuit board 1 needs to be pulled out, the procedure is as follows:
s201: firstly, the unlocking piece 202 is pressed downwards, so that the unlocking part 2024 is pressed downwards against the pressure-bearing part 102 of the flexible circuit board 1, and the pressure-bearing part 102 is pressed by the unlocking part 2024, then is bent downwards to deform and is separated from the clamping part 2013;
s202: then the flexible circuit board 1 can be pulled out;
similarly, in the process of pulling out the flexible circuit board 1, the pressure-bearing portion 102 bends downwards from the right side of the locking portion 2013 to deform, passes through the avoiding groove 2015 below the locking portion 2013, moves to the left side of the locking portion 2013, and then recovers upward to deform.
Therefore, the self-locking plug connector 2, the flexible circuit board 1 and the FPC connecting structure provided by the utility model can only pull out the flexible circuit board 1 by pressing the unlocking piece 202, so that the problem that the flexible circuit board 1 is easily pulled out of the connector due to misoperation in the prior art can be solved.
In step S102, the pressure-bearing portion 102 abuts against the left end surface of the locking portion 2013, so that the pressure-bearing portion 102 may be bent downward to deform and avoid the locking portion 2013, and a surface of the locking portion 2013 facing the notch of the FPC socket 2011 may be set as a first inclined guide surface 2013a; specifically, the distance from the first inclined guide surface 2013a to the notch of the FPC socket 2011 increases gradually from top to bottom.
In this embodiment, the unlocking member 202 further includes a pressing plate 2021, a fixing portion 2022, and a U-shaped spring arm 2023. The pressing plate 2021 is located above the connector base 201, and a space is provided between a bottom surface of the pressing plate 2021 and a top surface of the connector base 201. The fixing portion 2022 is fixedly connected to the connector base 201. The upper end of the U-shaped spring arm 2023 is connected to the pressing plate 2021, and the lower end is connected to the fixing portion 2022. Wherein the unlocking portion 2024 is located at a connection position of both the pressing plate 2021 and the U-shaped spring arm 2023, and extends downward.
Specifically, when the flexible circuit board 1 needs to be pulled out, the pressing plate 2021 is pressed downward, and the pressing plate 2021 can press the U-shaped spring arm 2023 downward, so as to drive the unlocking portion 2024 to move downward relative to the connector base 201, so as to press the pressure-bearing portion 102 of the flexible circuit board 1 downward; after the pressing plate 2021 is released, the U-shaped spring arm 2023 recovers to deform, and the pressing plate 2021 can drive the unlocking portion 2024 to move upwards relative to the connector base 201 for resetting.
Optionally, the fixing portion 2022 and the connector base 201 are of an in-mold injection fixing structure, and the fixing portion 2022 is provided with a plurality of limit inserts 2022a protruding along a direction perpendicular to the insertion and extraction direction of the flexible circuit board 1 and embedded in the connector base 201, so as to improve connection reliability between the fixing portion 2022 and the connector base 201
The self-locking type plug connector 2, the flexible circuit board 1 and the FPC connecting structure provided by the embodiment have the following advantages:
(1) after the flexible circuit board 1 is inserted into the FPC socket 2011, the flexible circuit board 1 is clamped by the clamping part 2013, at this time, unless the unlocking member 202 is pressed down, even if the flexible circuit board 1 is pulled from the outside, the flexible circuit board 1 cannot be pulled out of the lock type connector, so that the problem that the flexible circuit board 1 is easily pulled out of the connector due to misoperation in the prior art can be solved;
(2) the unlocking piece 202 is provided with a U-shaped spring arm 2023, and can automatically complete resetting after the hand is released;
(3) the main position of deformation in the plugging process is the pressure-bearing part 102, which is positioned at the edge of the flexible circuit board 1, and the position does not need to be provided with a circuit and a golden finger, and even if the pressure-bearing part 102 is damaged, normal signal transmission is not affected.
Example 2
The self-locking plug connector 2 provided in this embodiment is suitable for the flexible circuit board 1 and the FPC connection structure in embodiment 1, and has related functions and corresponding beneficial effects.
Referring to fig. 4, specifically, the self-locking plug connector 2 of the present embodiment is different from embodiment 1 in that:
in this embodiment, an elastic arm 2014 is formed on the top wall of the FPC socket 2011, and the locking portion 2013 is located on the elastic arm 2014.
Therefore, when the user inserts the flexible circuit board 1 into the FPC socket 2011, on one hand, the pressure-bearing portion 102 on the flexible circuit board 1 is bent downward to avoid the locking portion 2013, and on the other hand, the elastic arm 2014 is also deformed upward to some extent to avoid the pressure-bearing portion 102, so as to reduce the bending deformation of the pressure-bearing portion 102 downward and prolong the service life of the pressure-bearing portion 102.
In summary, compared with embodiment 1, the self-locking plug connector 2 provided in this embodiment has the advantages of reducing the deformation amount of the downward bending of the pressure-bearing portion 102 and prolonging the service life of the pressure-bearing portion 102.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Claims (10)
1. A self-locking plug connector, comprising:
a connector base (201), wherein the connector base (201) is provided with an FPC slot (2011) into which a flexible circuit board (1) is inserted, a through notch (2012) for communicating the FPC slot (2011) to the external space of the connector base (201), and a locking part (2013) positioned in the FPC slot (2011);
an unlocking piece (202), wherein the unlocking piece (202) is provided with an unlocking part (2024) which extends into the FPC slot (2011) through the through notch (2012);
wherein,
the clamping part (2013) is used for being clamped with the flexible circuit board (1);
the unlocking piece (202) is driven to drive the unlocking part (2024) to downwards prop against the flexible circuit board (1), so that the flexible circuit board (1) is separated from the clamping part (2013).
2. The self-locking plug connector according to claim 1, wherein a top wall of the FPC socket (2011) protrudes downward and forms the locking portion (2013);
alternatively, an elastic arm (2014) is formed on the top wall of the FPC socket (2011), and the locking portion (2013) is located on the elastic arm (2014).
3. The self-locking type plug connector according to claim 1, wherein a surface of the locking portion (2013) facing the notch of the FPC socket (2011) is a first inclined guide surface (2013 a);
the distance from the first inclined guide surface (2013 a) to the notch of the FPC slot (2011) gradually increases from top to bottom.
4. The self-locking plug connector according to claim 1, wherein a relief groove (2015) through which the flexible circuit board (1) passes is provided below the locking portion (2013).
5. The self-locking plug connector according to claim 4, wherein a groove wall of the avoidance groove (2015) close to the notch of the FPC socket (2011) is a second inclined guide surface (2015 a), and a distance dimension from the second inclined guide surface (2015 a) to the notch of the FPC socket (2011) gradually increases from top to bottom.
6. The self-locking plug connector according to claim 1, wherein the unlocking member (202) further comprises:
a pressing plate (2021), wherein the pressing plate (2021) is positioned above the connector base (201), and a spacing space is arranged between the bottom surface of the pressing plate (2021) and the top surface of the connector base (201);
a fixing portion (2022), the fixing portion (2022) being fixedly connected to the connector base (201);
the upper end of the U-shaped elastic arm (2023) is connected with the pressing plate (2021), and the lower end of the U-shaped elastic arm (2023) is connected with the fixing part (2022);
wherein the unlocking portion (2024) is located at a connection position of both the pressing plate (2021) and the U-shaped spring arm (2023), and extends downward.
7. The self-locking plug connector according to claim 6, wherein the fixing portion (2022) is provided with a plurality of limit inserts (2022 a) protruding in a direction perpendicular to the plug direction of the flexible circuit board (1) and embedded in the connector base (201).
8. A flexible circuit board for plug-in connection with a self-locking plug-in connector (2) according to any one of claims 1 to 7, wherein the flexible circuit board (1) is provided with a locking groove (101) which is engaged with a locking portion (2013) of the self-locking plug-in connector (2).
9. The flexible circuit board according to claim 8, wherein two sides of one end of the flexible circuit board (1) inserted into the self-locking plug connector (2) are respectively provided with a locking groove (101), and one side of the locking groove (101) close to the self-locking plug connector (2) is provided with a pressure-bearing part (102);
when the flexible circuit board (1) is clamped with the clamping part (2013), the unlocking part (2024) is positioned right above the pressure bearing part (102).
10. An FPC connection structure comprising the self-locking type plug connector (2) according to any one of claims 1 to 8 and the flexible circuit board (1) according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321439364.0U CN220253648U (en) | 2023-06-07 | 2023-06-07 | Self-locking type plug connector, flexible circuit board and FPC (flexible printed circuit) connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321439364.0U CN220253648U (en) | 2023-06-07 | 2023-06-07 | Self-locking type plug connector, flexible circuit board and FPC (flexible printed circuit) connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220253648U true CN220253648U (en) | 2023-12-26 |
Family
ID=89267069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321439364.0U Active CN220253648U (en) | 2023-06-07 | 2023-06-07 | Self-locking type plug connector, flexible circuit board and FPC (flexible printed circuit) connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220253648U (en) |
-
2023
- 2023-06-07 CN CN202321439364.0U patent/CN220253648U/en active Active
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