Direct insertion type connector

Abstract

The invention, which relates to the technical field of the connector, discloses a direct insertion type connector comprising a housing and a plurality of terminals. The shell comprises an upper shell, a lower shell and two opposite side shells, and the plurality of terminals are embedded in an accommodating cavity formed by surrounding of the upper shell, the lower shell and the two side shells; an isolation plate for separating the plurality of terminals is arranged between the two side shells and divides the terminals into contact parts positioned in the accommodating cavity and welding parts positioned outside the accommodating cavity; a first protective shell is arranged at the end, located at the welding part, of the shell, a second protective shell is arranged at the end, close to the contact part, of the shell, the first protective shell is connected to the outer walls of the two side shells in a sliding mode at the same time and can completely cover the welding part, and the second protective shell is connected to the upper shell in a sliding mode and can turn over relative to the upper shell and seal the containing cavity. According to the utility model, the effect of reducing the collision of the terminals in the connector in the transportation process is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a plug-in connector. Background Art

[0002] Connectors are also called connectors, joints and sockets, and generally refer to electrical connectors. That is, a device that connects two active devices, transmits current or signals, and the male end and the female end can transmit information or current after contact.

[0003] FPC connector is a type of connector. It mainly uses flexible circuit boards, which are made of polyimide or polyester film as a substrate and are highly reliable flexible printed circuit boards. The connector is embedded with terminal structures, which are used to connect to the circuit board. FPC has the characteristics of high wiring density, light weight, thin thickness and good bending properties.

[0004] After the connector is manufactured, the embedded terminal part is usually exposed to the outside. During transportation or handling, the terminal can easily be damaged to varying degrees due to bumps or overturning, which may eventually cause the connector to fail and the entire connector can only be scrapped. Utility Model Content

[0005] In order to improve the situation where the connector terminals may be bumped during transportation, which may cause the entire connector to be scrapped, the present application provides a plug-in connector.

[0006] The present application provides a plug-in connector, which adopts the following technical solution:

[0007] A plug-in connector includes a housing and a plurality of terminals;

[0008] The housing comprises an upper housing, a lower housing and two opposite side housings, and a plurality of the terminals are embedded in a receiving cavity formed by the upper housing, the lower housing and the two side housings;

[0009] An isolation plate for separating a plurality of terminals is provided between the two side shells, and the isolation plate divides the terminals into a contact portion located in the accommodating cavity and a welding portion located outside the accommodating cavity;

[0010] The shell is provided with a first protective shell at one end of the welding part, and a second protective shell is provided at one end of the shell close to the contact part. The first protective shell is slidably connected to the outer walls of the two side shells at the same time and can completely cover the welding part. The second protective shell is slidably connected to the upper shell, and the second protective shell can be flipped relative to the upper shell and close the accommodating cavity.

[0011] By adopting the above technical solution, the shell includes an upper shell, a lower shell and two opposite side shells, and the four shells surround to form a receiving cavity for placing and fixing the terminal. The terminal is divided into a contact portion located in the receiving cavity and a welding portion located outside the receiving cavity. The receiving cavity can be used for inserting the FFC or FPC line, so that the circuit on the cable abuts against the contact portion, thereby transmitting the electrical signal to the welding portion outside the receiving cavity. The welding portion is used to be welded and connected to an external circuit board. There are several terminals, and they are separated by an isolation plate between the two side shells, so that each terminal transmits an electrical signal independently. The shell is provided with a first protective shell at one end of the welding portion, and a second protective shell is provided at one end close to the contact portion. The first protective shell is slidably connected to the outer walls of the two side shells at the same time and can completely cover the welding portion. The second protective shell is slidably connected to the upper shell and can be flipped relative to the upper shell and close the receiving cavity. In the process that the connector is produced and has not yet been put into use, the first protective shell and the second protective shell can form a closed protection for the contact portion and the welding portion to reduce the situation where the connector is scrapped as a whole due to the bumping of the terminal during transportation.

[0012] Optionally, the first protective shell surrounds the shell, and the outer walls of the two side shells are respectively provided with first sliding grooves, and the inner walls of the two side shells corresponding to the first protective shell are provided with first sliders, and the first slider slides in the first sliding groove, and the first slider can be relatively fixed at two extreme positions in the first sliding groove.

[0013] By adopting the above technical solution, the first protective shell surrounds the shell, the outer walls of the two side shells are respectively provided with first sliding grooves, the inner walls of the two side shells of the first protective shell are respectively provided with first sliders, the first slider slides in the first sliding groove, and the first slider can be relatively fixed at the two extreme positions in the first sliding groove, so that the first protective shell can be fixed at different extreme positions according to actual conditions during use to meet different usage requirements.

[0014] Optionally, a cover plate is provided inside the first protective shell, and the cover plate is slidably connected to the inner walls of the two side shells at the same time, and the moving direction is parallel to the length direction of the upper shell. When the cover plate slides outward to the extreme position, it can rotate relative to the first protective shell, and is used to surround the welding part together with the first protective shell.

[0015] By adopting the above technical solution, a cover plate is slidably connected to the inside of the first protective shell perpendicular to one of the side walls of the side shell. When the cover plate slides outward to the extreme position, it can rotate relative to the first protective shell. At this time, the end of the cover plate away from the first protective shell can be clamped with the other side wall of the first protective shell perpendicular to the side shell, so that the cover plate and the first protective shell together form a closed space surrounding the welding part.

[0016] Optionally, a second sliding groove is provided on the outer wall of the upper shell, and the second protective shell is slidably connected in the second sliding groove and can move toward or away from the welding part. When the second protective shell moves to an extreme position toward the welding part, it can be flipped relative to the upper shell and fixed to the upper shell. When the second protective shell moves to an extreme position toward the welding part, it can be flipped relative to the upper shell, and the end of the second protective shell away from the upper shell can be connected to the lower shell to form a closure for the accommodating cavity.

[0017] By adopting the above technical solution, a second sliding groove is opened on the outer wall of the upper shell, and the second protective shell is slidably connected in the second sliding groove. When the second protective shell moves to the extreme position in the direction close to the welding part, it can be flipped relative to the upper shell and fixed to the upper shell. At this time, the second protective shell is stored in the upper shell. When the second protective shell moves to the extreme position in the direction away from the welding part, it can be flipped relative to the upper shell, and the end of the second protective shell away from the upper shell can be connected to the lower shell to form a closure for the accommodating cavity, thereby reducing the situation where foreign objects fall into the accommodating cavity and cause damage to the terminal.

[0018] Optionally, the terminal further includes a stop portion, which is located between the contact portion and the welding portion. The terminal extends into the accommodating cavity from the gap between the isolation plates, and the stop portion can cooperate with the shell to position and fix the terminal in the shell.

[0019] By adopting the above technical solution,

[0020] Optionally, the contact portion includes a U-shaped contact arm, and the U-shaped contact arm is provided with two contact points protruding inwardly at one end away from the welding portion. The terminal lengths are divided into long and short types, and the two types of terminals are distributed at intervals in the accommodating cavity.

[0021] By adopting the above technical solution, the terminal also includes a stopper located between the contact portion and the welding portion. When the terminal is placed in the accommodating cavity, the stopper can cooperate with the shell to position the terminal and fix the terminal in the shell.

[0022] Optionally, the length of the lower shell is the same as that of the two side shells, and both are greater than the length of the upper shell.

[0023] By adopting the above technical solution, the length of the lower shell is the same as that of the two side shells, and both are greater than the length of the upper shell, so that the connector can adapt to the connector of the FFC or FPC line, thereby better plugging and mating with the FFC or FPC line.

[0024] Optionally, the outer walls of the two side shells are each provided with a fixing column facing the side away from the welding portion, and the two fixing columns are each covered with a grounding plate, and the fixing column and the grounding plate are both spaced apart from the end face of the side shell away from the welding portion.

[0025] By adopting the above technical solution, the outer walls of the two side shells are provided with fixing columns facing the side away from the welding part, and a grounding plate is attached to the two fixing columns. The fixing columns and the grounding plate are spaced apart from the end face of the side shell away from the welding part. The setting of the spacing makes the contact point position at the grounding plate relatively small, and it is more stable when placed on the circuit board for SMT process.

[0026] In summary, the present application includes at least one of the following beneficial effects:

[0027] 1. A first protective shell slidably connected to the shell is provided at the welding part of the terminal. The first protective shell can be fixed on the outer wall of the shell when not in use, and can be manually slid out when in use, so that the first protective shell forms a closed protection for the welding part;

[0028] 2. A second protective shell is arranged at the position of the accommodation cavity on one side of the terminal contact portion. The second protective shell can be turned over and fixed on the surface of the upper shell when not in use. When in use, it can be turned over manually and moved to the end surface of the upper shell away from the welding portion. At this time, the second protective shell can be fixed with the lower shell so that the second protective shell forms a seal for the accommodation cavity;

[0029] 3. The terminals of two types, long and short, are spaced apart so that the contact points form two rows of clamping points at different positions. This arrangement ensures that the clamping force when the FFC or FPC line is inserted into and removed from the housing is uniform and moderate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram showing the overall structure of the connector on one side of the contact portion in an embodiment of the present application;

[0031] Figure 2 This is a schematic diagram showing the overall structure of the connector on one side of the welding portion in an embodiment of the present application;

[0032] Figure 3 is a schematic diagram showing a first protective shell structure according to an embodiment of the present application;

[0033] Figure 4 yes Figure 3 An enlarged schematic diagram at A;

[0034] Figure 5 is a schematic diagram showing the structure of a second protective shell according to an embodiment of the present application;

[0035] Figure 6 This is a partial schematic diagram showing the second protective shell shaft structure in an embodiment of the present application;

[0036] Figure 7 It is a cross-sectional schematic diagram showing the terminal contact point structure of an embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. Shell; 11. Upper shell; 111. Placement groove; 112. Second slide groove; 12. Lower shell; 121. Snap-in groove; 13. Side shell; 131. First slide groove; 14. Isolation plate; 15. Receiving groove; 16. Plug interface; 17. Fixing column; 171. Grounding plate; 2. Terminal; 21. Contact portion; 211. Contact point; 22. Welding portion; 23. Stop portion; 3. Accommodating chamber; 4. First protective shell; 41. First slider; 42. Cover plate; 43. Third slide groove; 44. Limit block; 5. Second protective shell; 6. Rotating shaft; 7. Snap-in block; 8. Locking block. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-7 This application is described in further detail.

[0039] The embodiment of the present application discloses a plug-in connector, referring to Figure 1 and Figure 2 A plug-in connector includes a housing 1 and a plurality of terminals 2, wherein the plurality of terminals 2 are embedded in the housing 1. The housing 1 includes an upper housing 11, a lower housing 12, and two side housings 13, which are integrally formed. The upper housing 11, the lower housing 12, and the two side housings 13 are perpendicular to each other and together surround a receiving cavity 3. An isolation plate 14 is fixedly arranged at one end of the housing 1 located in the receiving cavity 3. The isolation plate 14 is fixedly connected to the upper housing 11 and the lower housing 12 at the same time, so that a plug-in interface 16 is formed on the side of the housing 1 away from the isolation plate 14, and the plug-in interface 16 allows the FFC or FPC line to extend into the housing 1.

[0040] The terminal 2 includes a contact portion 21 and a soldering portion 22. The contact portion 21 extends from the gap between the isolation plates 14 into the accommodating cavity 3, and the soldering portion 22 is exposed outside the housing 1 and is used to be soldered to an external circuit board. At the same time, corresponding and spaced receiving grooves 15 for accommodating the terminal 2 are provided on the inner walls of the upper housing 11 and the lower housing 12. The shape of the receiving groove 15 corresponds to the shape of the contact portion 21, and the contact portion 21 of the terminal 2 is placed in the receiving groove 15 for positioning and fixing.

[0041] A fixing column 17 facing the plug interface 16 is fixed on the outer wall of the two side shells 13. The fixing column 17 is a square column. A grounding plate 171 is attached to the surface of the fixing column 17. The fixing column 17 and the grounding plate 171 on the fixing column 17 are spaced apart from the end surface of the side shell 13 close to the plug interface 16. The remaining space can make the contact point position at the grounding plate 171 smaller, so that the connector can be placed on the circuit board more smoothly during the SMT process.

[0042] Reference Figure 1 and Figure 3The first protective shell 4 is sleeved on the outer wall of the housing 1 near one end of the welding portion 22. The first protective shell 4 surrounds the upper housing 11, the lower housing 12, and the two side housings 13 at the same time. The outer walls of the two side housings 13 are provided with first slide grooves 131 parallel to the length direction of the upper housing 11. At the same time, the first protective shell 4 is fixed with a first slider 41 at the inner wall corresponding to the positions of the two first slide grooves 131. The first slider 41 is slidably connected in the first slide grooves 131. Bumps are fixed on the two opposite inner walls of the first slide groove 131. The bumps are respectively arranged at the two extreme positions of the first slider 41 moving in the first slide groove 131. The first slider 41 is provided with a groove corresponding to the position of the bump. The shape of the groove corresponds to the shape of the bump, so that when the first slider 41 slides to the two extreme positions, the position of the first protective shell 4 can be fixed relative to the housing 1 through the cooperation between the bump and the groove.

[0043] Reference Figure 3 and Figure 4 The first protective shell 4 is provided with a cover plate 42 at one end away from the shell 1, and the first protective shell 4 is provided with third slide grooves 43 on both side walls parallel to the length direction of the side shell 13. The opening direction of the third slide grooves 43 is parallel to the length direction of the upper shell 11. The two side walls of the cover plate 42 are respectively slidably connected to the two third slide grooves 43, so that the cover plate 42 can move in a direction away from or close to the welding portion 22.

[0044] The two side walls of the cover plate 42 near one end of the welding part 22 are both provided with a cylindrical shaft 6 protruding outward, and the axis of the shaft 6 is perpendicular to the length direction of the side shell 13. At the same time, the first protective shell 4 is fixed with limit blocks 44 at the positions corresponding to the two shafts 6, and the two limit blocks 44 are provided with grooves that match the shape of the shaft 6 on two opposite inner walls. When the cover plate 42 slides along the third slide groove 43 away from the welding part 22 until the shaft 6 matches the groove on the limit block 44, the cover plate 42 is manually flipped around the axis of the shaft 6 toward the upper shell 11 until the cover plate 42 and the first protective shell 4 jointly form a closure for the welding part 22 to reduce the collision between foreign objects and the welding part 22 during transportation.

[0045] A clamping block 7 is fixed to the cover plate 42 at one end away from the first protective shell 4. After the cover plate 42 is flipped over, a locking block 8 is fixed to the first protective shell 4 at a position corresponding to the clamping block 7. After the cover plate 42 is flipped over, the clamping block 7 can cooperate with the locking block 8, so that the clamping block 7 can be clamped in the groove in the locking block 8, thereby fixing the position of the cover plate 42 relative to the first protective shell 4. When the function of the first protective shell 4 is not needed, first disengage the snap-fit ​​block 7 of the cover 42 from the groove of the locking block 8, and then flip the cover 42 until the cover 42 is parallel to the upper shell 11. At this time, push the cover 42 into the first protective shell 4 along the third slide groove 43. The third slide groove 43 also has a structure similar to a protrusion. The rotating shaft 6 of the cover 42 can cooperate with the protrusion structure to fix the cover 42 inside the first protective shell 4. At this time, move the first protective shell 4 toward the welding portion 22 until the protrusion in the first slide groove 131 cooperates with the groove of the first slider 41, so that the first protective shell 4 is fixed on the shell 1.

[0046] Reference Figure 5 and Figure 6 The upper shell 11 is provided with a placement groove 111 at the top of the end away from the first protective shell 4. At the same time, the upper shell 11 is provided with two second slide grooves 112 on the top wall located in the placement groove 111. The opening direction of the second slide groove 112 is parallel to the opening direction of the first slide groove 131, and passes through the end of the upper shell 11 away from the first protective shell 4. The placement groove 111 is slidably connected with the second protective shell 5. The shape of the second protective shell 5 matches the shape of the placement groove 111. At the same time, a cylindrical rotating shaft 6 is also fixed at the bottom of the second protective shell 5. The axial direction of the rotating shaft 6 is perpendicular to the length direction of the side shell 13. When the rotating shaft 6 moves to the extreme position away from the first protective shell 4 in the second slide groove 112, the second protective shell 5 can be manually flipped around the axis of the rotating shaft 6 until the end of the second protective shell 5 away from the upper shell 11 contacts the lower shell 12.

[0047] A snap-in block 7 is also fixed on the side wall of the second protective shell 5 away from the upper shell 11. The lower shell 12 is provided with a snap-in groove 121 at the position of the snap-in block 7 after the second protective shell 5 is flipped over. The shape of the snap-in groove 121 matches the appearance of the snap-in block 7, so that the snap-in block 7 can fix the position of the second protective shell 5 by cooperating with the snap-in groove 121, so that the second protective shell 5 is in a state of closing the plug interface 16, thereby reducing the situation where foreign objects fall into the accommodating cavity 3 and cause damage to the terminal 2.

[0048] When the second protective shell 5 is not needed, the snap-on block 7 can be manually disengaged from the snap-on groove 121, and then the second protective shell 5 can be flipped over so that the second protective shell 5 rotates around the axis of the rotating shaft 6 until the second protective shell 5 is parallel to the upper shell 11. At this time, the second protective shell 5 is pushed into the placement groove 111 along the second sliding groove 112. The second sliding groove 112 also has a structure similar to a protrusion. The rotating shaft 6 on the second protective shell 5 can cooperate with the protrusion structure to fix the cover plate 42 inside the first protective shell 4.

[0049] Reference Figure 7 The terminal 2 also includes a stopper 23 located between the contact portion 21 and the welding portion 22. The stopper 23 is engaged with the upper shell 11 and the lower shell 12 to position and fix the terminal 2 in the shell 1. The terminal 2 is made of a conductor and can be divided into two types, long terminals and short terminals, according to their lengths. The two types of terminals 2 are arranged alternately in the accommodating cavity 3. The contact portion 21 is a U-shaped contact arm, and two contact points 211 that are opposite and protrude inward are fixed at one end of the U-shaped contact arm near the plug port 16. When using the connector, the FFC or FPC line is inserted between the two arms of the U-shaped contact arm, and the two opposing and raised contact points 211 in the U-shaped contact arm are used to clamp and fix the FFC or FPC line, which is convenient and easy to use; since the lengths of the terminals 2 are divided into long and short types, and the two types of terminals 2 are spaced apart in the accommodating cavity 3, the contact points 211 of the two types of terminals 2 form two rows of clamping points at different positions, so that the clamping force when the FFC line or FPC line is inserted into and removed from the housing 1 is uniform and moderate.

[0050] The implementation principle of a plug-in connector in an embodiment of the present application is as follows: an FFC line or an FPC line can be inserted into or pulled out of the shell 1 through the plug interface 16, so that the FFC line or the FPC line is connected or disconnected with the internal terminal 2. The first protective shell 4 is used to protect the welding part 22. After the first protective shell 4 slides out along the first slide groove 131, the cover plate 42 can be manually pulled out and the cover plate 42 can be flipped around the axis of the rotating shaft 6 until the clamping block 7 is matched and fixed with the locking block 8, so that the cover plate 42 and the first protective shell 4 together form a closed protection for the welding part 22. The second protective shell 5 can slide along the second slide groove 112 and rotate around the axis of the rotating shaft 6 until the clamping block 7 is matched and fixed with the clamping groove 121, so that the second protective shell 5 forms a closed protection for the plug interface 16.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plug-in connector, Features: It comprises a housing (1) and a plurality of terminals (2); The housing (1) comprises an upper housing (11), a lower housing (12) and two opposite side housings (13); a plurality of the terminals (2) are embedded in a receiving cavity (3) formed by the upper housing (11), the lower housing (12) and the two side housings (13); An isolation plate (14) for separating a plurality of terminals (2) is provided between the two side housings (13); the isolation plate (14) divides the terminal (2) into a contact portion (21) located inside the accommodating cavity (3) and a welding portion (22) located outside the accommodating cavity (3); The shell (1) is provided with a first protective shell (4) at one end of the welding portion (22), and the shell (1) is provided with a second protective shell (5) at one end close to the contact portion (21). The first protective shell (4) is slidably connected to the outer walls of the two side shells (13) and is capable of completely covering the welding portion (22). The second protective shell (5) is slidably connected to the upper shell (11), and is capable of flipping over relative to the upper shell (11) and sealing the accommodating cavity (3).

2. The plug-in connector according to claim 1, Features: The first protective shell (4) surrounds the shell (1), and the outer walls of the two side shells (13) are respectively provided with first sliding grooves (131), and the inner walls of the two side shells (13) of the first protective shell (4) are respectively provided with first sliding blocks (41), and the first sliding blocks (41) slide in the first sliding grooves (131), and the first sliding blocks (41) can be relatively fixed at two extreme positions in the first sliding grooves (131).

3. The plug-in connector according to claim 2, Features: A cover plate (42) is provided inside the first protective shell (4), the cover plate (42) being slidably connected to the inner walls of the two side shells (13) at the same time, and the movement direction is parallel to the length direction of the upper shell (11); the cover plate (42) is able to rotate relative to the first protective shell (4) when sliding outward to an extreme position, and is used to surround the welding portion (22) together with the first protective shell (4).

4. The plug-in connector according to claim 1, Features: The outer wall of the upper shell (11) is provided with a second sliding groove (112), the second protective shell (5) is slidably connected in the second sliding groove (112), and can move towards or away from the welding portion (22); when the second protective shell (5) moves to an extreme position in the direction towards the welding portion (22), it can be turned over relative to the upper shell (11) and fixed to the upper shell (11); when the second protective shell (5) moves to an extreme position in the direction away from the welding portion (22), it can be turned over relative to the upper shell (11), and the end of the second protective shell (5) away from the upper shell (11) can be connected to the lower shell (12), so as to close the accommodating cavity (3).

5. The plug-in connector according to claim 1, Features: The terminal (2) further comprises a stopper (23), wherein the stopper (23) is located between the contact portion (21) and the welding portion (22); the terminal (2) extends into the accommodating cavity (3) from the gap between the isolation plates (14); the stopper (23) can cooperate with the housing (1) to position and fix the terminal (2) in the housing (1).

6. The plug-in connector according to claim 1, Features: The contact portion (21) comprises a U-shaped contact arm, and two contact points (211) protruding inwardly are arranged opposite to each other at one end of the U-shaped contact arm away from the welding portion (22). The lengths of the terminals (2) are divided into two types: long and short, and the two types of terminals (2) are distributed at intervals in the accommodating cavity (3).

7. The plug-in connector according to claim 1, Features: The lower shell (12) has the same length as the two side shells (13), and both are greater than the length of the upper shell (11).

8. The plug-in connector according to claim 1, Features: The outer walls of the two side shells (13) are each provided with a fixing column (17) facing the side away from the welding portion (22), and the two fixing columns (17) are each covered with a grounding plate (171), and the fixing columns (17) and the grounding plate (171) are both spaced apart from the end surface of the side shell (13) away from the welding portion (22).

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