Connector and connector assembly

Abstract

The invention discloses a connector and a connector assembly. The connector includes: a housing; the terminal is arranged on the shell and comprises a welding end which is welded on a welding pad of a circuit board; and the pressing piece is movably mounted on the shell and can be driven by a circuit board inserted into the connector to move from a pre-assembling position to a pressing position. When the circuit board is inserted into a preset installation position in the connector, the pressing piece is driven to the pressing position by the circuit board. Before the pressing piece is moved to the pressing position, the welding end of the terminal is not pressed by the pressing piece, so that the welding end of the terminal is not in contact with the welding pad of the circuit board; when the pressing piece is moved to the pressing position, the pressing piece applies preset pressing force to the welding end of the terminal, so that the welding end of the terminal is pressed on the welding pad of the circuit board. The welding quality can be improved, and the size of the connector in the thickness direction cannot be increased.

Description

Technical Field

[0001] The invention relates to a connector and a connector assembly comprising the connector. Background Art

[0002] The connector generally includes a housing and a terminal disposed in the housing. The terminal generally includes a welding end for welding to a circuit board and a mating end for mating with a mating terminal of a mating connector. In the prior art, in order to ensure the welding quality between the welding end of the terminal and the welding pad of the circuit board, the welding end of the terminal needs to be in pressure contact with the welding pad on the circuit board. However, this will cause the welding end of the terminal to scrape the solder paste on the solder pad of the circuit board during the process of inserting the circuit board into the connector, which will damage the solder paste on the solder pad and reduce the welding quality. Summary of the invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, a connector is provided. The connector includes: a housing; a terminal, which is arranged on the housing and includes a welding end for welding to a welding pad on a circuit board; and a pressing member, which is movably mounted on the housing and can be moved from a pre-installed position to a pressing position under the drive of a circuit board inserted into the connector. When the circuit board is inserted into a predetermined installation position in the connector, the pressing member is driven by the circuit board to the pressing position. Before the pressing member is moved to the pressing position, the welding end of the terminal is not pressed by the pressing member, so that the welding end of the terminal does not contact the welding pad on the circuit board; when the pressing member is moved to the pressing position, the pressing member applies a predetermined pressing force on the welding end of the terminal, so that the welding end of the terminal is pressed on the welding pad of the circuit board.

[0005] According to an exemplary embodiment of the present invention, the connector includes upper and lower rows of terminals opposite to each other in the thickness direction of the shell and upper and lower pressing members opposite to each other in the thickness direction of the shell; the upper pressing member of the two pressing members is used to press the upper row of terminals of the two rows of terminals onto a row of welding pads on the front side of the circuit board; the lower pressing member of the two pressing members is used to press the lower row of terminals of the two rows of terminals onto a row of welding pads on the back side of the circuit board.

[0006] According to another exemplary embodiment of the present invention, the pressing member is rotatably mounted on the housing and can be rotated from the pre-installed position to the pressing position under the drive of the inserted circuit board.

[0007] According to another exemplary embodiment of the present invention, the housing has a front side and a rear side opposite to each other in the longitudinal direction thereof, and the terminal extends in the longitudinal direction of the housing. The housing comprises: a body portion; and a pair of supporting walls, which are respectively located on two sides opposite to each other in the transverse direction of the housing and connected to the rear side of the body portion, the welding end of the terminal extends from the rear side of the body portion of the housing, and the two ends of the mounting member are respectively rotatably mounted on the pair of supporting walls of the housing.

[0008] According to another exemplary embodiment of the present invention, a mounting hole is formed on the support wall, and mounting shafts are respectively formed at both ends of the mounting member, and the mounting shafts are rotatably mounted in the mounting hole so that the mounting member can rotate around an axis parallel to the transverse direction of the shell.

[0009] According to another exemplary embodiment of the present invention, a protrusion is formed on the mounting member, and a limiting portion is formed on the inner side of the supporting wall of the housing, wherein the limiting portion has a first limiting surface and a second limiting surface;

[0010] When the mounting member is in the pre-installed position, the protrusion on the mounting member abuts against the first limiting surface of the limiting portion to keep the mounting member in the pre-installed position;

[0011] When the mounting member is in the pressing position, the protrusion on the mounting member abuts against the second limiting surface of the limiting portion to keep the mounting member in the pressing position.

[0012] According to another exemplary embodiment of the present invention, a row of positioning grooves is formed on the pressing member, and a portion of the welding end of the terminal is positioned in the corresponding positioning groove.

[0013] According to another exemplary embodiment of the present invention, a protruding pressing portion is formed on the pressing member, and the pressing portion continuously extends in a lateral direction of the housing and is used to simultaneously press a row of terminals onto a row of welding pads on the circuit board.

[0014] According to another exemplary embodiment of the present invention, the pressing member is mounted on the shell in a manner capable of being moved along the thickness direction of the shell, so that the pressing member can be moved from the pre-installed position to the pressing position along the thickness direction of the shell under the drive of the inserted circuit board.

[0015] According to another exemplary embodiment of the present invention, the housing has a front side and a rear side opposite to each other in the longitudinal direction thereof, and the terminal extends in the longitudinal direction of the housing. The housing comprises: a body portion; and a pair of supporting walls, which are respectively located on two opposite sides of the housing in the transverse direction and connected to the rear side of the body portion, the welding end of the terminal extends from the rear side of the body portion of the housing, and the two ends of the mounting member are respectively movably mounted to the pair of supporting walls of the housing.

[0016] According to another exemplary embodiment of the present invention, a mounting groove is formed on the support wall, and raised mounting portions are respectively formed at both ends of the mounting member, and the mounting portions are slidably installed in the mounting groove so that the mounting member can move along the thickness direction of the shell.

[0017] According to another exemplary embodiment of the present invention, a raised snap-fit ​​portion is formed on the mounting portion of the mounting member, and a raised first limiting portion and a second limiting portion are formed on the inner side of the supporting wall of the shell; when the mounting member is in the pre-installed position, the snap-fit ​​portion on the mounting member engages with the first limiting portion to keep the mounting member in the pre-installed position; when the mounting member is in the pressing position, the snap-fit ​​portion on the mounting member engages with the second limiting portion to keep the mounting member in the pressing position.

[0018] According to another exemplary embodiment of the present invention, a row of driving parts is formed on the pressing member, and the driving part has an inclined surface inclined to the thickness direction of the shell, and the inclined surface is used for sliding contact with the inserted circuit board, so as to convert the movement of the circuit board along the longitudinal direction of the shell into the movement of the pressing member along the thickness direction of the shell.

[0019] According to another exemplary embodiment of the present invention, a row of pressing protrusions is formed on the pressing member, the row of driving parts are respectively formed on the top surfaces of the row of pressing protrusions, each of the pressing protrusions has a pair of pressing shoulders, and the pair of pressing shoulders are used to simultaneously press the welding ends of two adjacent terminals onto the two welding pads of the circuit board.

[0020] According to another exemplary embodiment of the present invention, a row of grooves is formed on the pressing member, and two adjacent pressing protrusions are separated by a corresponding groove; a row of driving parts on the upper mounting member is suitable for being respectively inserted into and positioned in a row of grooves on the lower mounting member; a row of driving parts on the lower mounting member is suitable for being respectively inserted into and positioned in a row of grooves on the upper mounting member.

[0021] According to another exemplary embodiment of the present invention, a slot is formed on the supporting wall of the shell, and snap-on protrusions are respectively formed on two inner side surfaces of the slot that are opposite to each other in the thickness direction of the shell; when the circuit board is inserted into a predetermined installation position, a portion of the circuit board is inserted into the slot, and the snap-on protrusion engages with the slot hole on the circuit board to keep the circuit board in the predetermined installation position.

[0022] According to another aspect of the present invention, a connector is provided. The connector comprises: a housing having a slot extending in the transverse and longitudinal direction of the housing for inserting a circuit board; and a terminal, which is arranged on the housing and comprises a welding end for welding to a welding pad of a circuit board. The housing comprises two elastic walls which are opposite to each other in the thickness direction of the housing and are respectively located on the upper and lower sides of the slot, a part of the terminal is retained in the elastic walls, and the welding end of the terminal extends out from the elastic walls. Before the circuit board is inserted into a predetermined installation position, the two elastic walls are driven by the circuit board to a propped-up position so that the welding end of the terminal does not contact the welding pad on the circuit board to prevent the welding pad from being scratched by the welding end. When the circuit board is inserted into the predetermined installation position, the two elastic walls are elastically reset to the initial position so that the welding end of the terminal is in pressure contact with the welding pad on the circuit board to prevent the occurrence of cold solder joints.

[0023] According to an exemplary embodiment of the present invention, the connector includes upper and lower rows of terminals opposite to each other in the thickness direction of the shell, the welding ends of the upper row of terminals in the two rows of terminals are used to be welded to a row of welding pads on the front side of the circuit board, and the welding ends of the lower row of terminals in the two rows of terminals are used to be welded to a row of welding pads on the back side of the circuit board.

[0024] According to another exemplary embodiment of the present invention, the elastic wall has two ends opposite to each other in the transverse direction of the shell, and protrusions are respectively formed on the inner side surfaces of the two ends of the elastic wall, and the protrusions are used to engage with the slots on the circuit board; before the circuit board is inserted into the predetermined installation position, the protrusions abut against the surface of the circuit board, so that the two elastic walls are stretched open to the stretched position by the circuit board; when the circuit board is inserted into the predetermined installation position, the protrusions engage with the slots on the circuit board, so that the two elastic walls elastically return to the initial position.

[0025] According to another exemplary embodiment of the present invention, the elastic wall has two ends opposite to each other in the transverse direction of the shell, and slots are respectively formed on the inner side surfaces of the two ends of the elastic wall, and the slots are used to engage with the protrusions on the circuit board; before the circuit board is inserted into the predetermined installation position, the protrusions abut against the inner side surfaces of the elastic wall, so that the two elastic walls are stretched open to the stretched position by the circuit board; when the circuit board is inserted into the predetermined installation position, the protrusions engage with the slots on the elastic wall, so that the two elastic walls elastically return to the initial position.

[0026] According to another exemplary embodiment of the present invention, when the circuit board is inserted into the predetermined installation position, the elastic wall applies a predetermined pressing force on the soldering end of the terminal so that the soldering end of the terminal is in reliable contact with the soldering pad on the circuit board.

[0027] According to another aspect of the present invention, a connector assembly is provided. The connector assembly comprises: the aforementioned connector; and a circuit board, which is inserted into the connector and has a welding pad for welding with the welding end of the terminal of the connector. Before the circuit board is inserted into a predetermined installation position, the welding end of the terminal does not contact the welding pad on the circuit board to prevent the welding pad from being scratched by the welding end; when the circuit board is inserted into the predetermined installation position, the welding end of the terminal is in pressure contact with the welding pad on the circuit board to prevent the occurrence of cold solder joints.

[0028] In the aforementioned exemplary embodiments of the present invention, before the circuit board is inserted into the predetermined installation position of the connector, the soldering end of the terminal of the connector does not contact the soldering pad on the circuit board, so when the circuit board is inserted, the soldering end of the terminal will not scratch the solder paste on the soldering pad, thereby improving the soldering quality. In addition, the structure of the present invention is simple, and the size of the connector in the thickness direction is not increased, which is conducive to the miniaturization of the connector.

[0029] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective schematic diagram showing a connector according to a first embodiment of the present invention;

[0031] Figure 2 An exploded schematic diagram showing a connector according to a first embodiment of the present invention;

[0032] Figure 3 A perspective schematic diagram showing a connector according to a first embodiment of the present invention and a circuit board inserted into the connector;

[0033] Figure 4 A longitudinal cross-sectional view showing a connector and a circuit board according to a first embodiment of the present invention, wherein the pressing member is in a pre-installed position;

[0034] Figure 5 A longitudinal sectional view showing a connector and a circuit board according to a first embodiment of the present invention, wherein the pressing member is in a pressing position;

[0035] Figure 6 A perspective schematic diagram showing a connector according to a second embodiment of the present invention;

[0036] Figure 7 An exploded schematic diagram showing a connector according to a second embodiment of the present invention;

[0037] Figure 8 A perspective schematic diagram showing a connector and a circuit board inserted into the connector according to a second embodiment of the present invention;

[0038] Fig. 9 A longitudinal cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pre-installed position;

[0039] Fig.10 A longitudinal cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pressing position;

[0040] Fig.11 A transverse cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pre-installed position;

[0041] Fig.12 A transverse cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pressing position;

[0042] Fig.13 A perspective schematic diagram showing a connector according to a third embodiment of the present invention;

[0043] Fig.14 A longitudinal cross-sectional view showing a connector according to a third embodiment of the present invention, showing a protrusion engaging with a slot on a circuit board;

[0044] Fig.15 Another longitudinal sectional view showing a connector according to a third embodiment of the present invention;

[0045] Fig.16 A perspective cross-sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has been inserted into a predetermined mounting position;

[0046] Fig.17 A longitudinal sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has not yet been inserted into a predetermined mounting position;

[0047] Fig.18 A longitudinal sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has been inserted into a predetermined mounting position. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0049] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0050] According to an overall technical concept of the present invention, a connector is provided. The connector includes: a housing; a terminal, which is arranged on the housing and includes a welding end for welding to a welding pad on a circuit board; and a pressing member, which is movably mounted on the housing and can be moved from a pre-installed position to a pressing position under the drive of a circuit board inserted into the connector. When the circuit board is inserted into a predetermined installation position in the connector, the pressing member is driven by the circuit board to the pressing position. Before the pressing member is moved to the pressing position, the welding end of the terminal is not pressed by the pressing member, so that the welding end of the terminal does not contact the welding pad on the circuit board to prevent the welding pad from being scratched by the welding end; when the pressing member is moved to the pressing position, the pressing member applies a predetermined pressing force on the welding end of the terminal, so that the welding end of the terminal is pressed on the welding pad of the circuit board to prevent cold solder joints.

[0051] According to another general technical concept of the present invention, a connector is provided. The connector includes: a housing having a slot extending in the transverse and longitudinal direction of the housing for inserting a circuit board; and a terminal, which is arranged on the housing and includes a welding end for welding to a welding pad of a circuit board. The housing includes two elastic walls which are opposite to each other in the thickness direction of the housing and are respectively located on the upper and lower sides of the slot, a part of the terminal is retained in the elastic wall, and the welding end of the terminal extends out from the elastic wall. Before the circuit board is inserted into a predetermined installation position, the two elastic walls are driven by the circuit board to a propped-up position so that the welding end of the terminal does not contact the welding pad on the circuit board to prevent the welding pad from being scratched by the welding end. When the circuit board is inserted into the predetermined installation position, the two elastic walls are elastically reset to the initial position so that the welding end of the terminal is in pressure contact with the welding pad on the circuit board to prevent the occurrence of cold solder joints.

[0052] According to another general technical concept of the present invention, a connector assembly is provided. The connector assembly comprises: the aforementioned connector; and a circuit board, which is inserted into the connector and has a welding pad for welding with the welding end of the terminal of the connector. Before the circuit board is inserted into a predetermined installation position, the welding end of the terminal does not contact the welding pad on the circuit board to prevent the welding pad from being scratched by the welding end; when the circuit board is inserted into the predetermined installation position, the welding end of the terminal is in pressure contact with the welding pad on the circuit board to prevent the occurrence of cold solder joints.

[0053] First embodiment

[0054] Figures 1 to 5 A connector according to a first embodiment of the present invention is shown. Figure 1 A perspective schematic diagram showing a connector according to a first embodiment of the present invention; Figure 2 An exploded schematic diagram showing a connector according to a first embodiment of the present invention; Figure 3 A perspective schematic diagram showing a connector according to a first embodiment of the present invention and a circuit board 4 inserted into the connector;

[0055] Figure 4 A longitudinal cross-sectional view showing a connector and a circuit board 4 according to a first embodiment of the present invention, wherein the pressing member 3 is in a pre-installed position; Figure 5 A longitudinal sectional view showing a connector and a circuit board 4 according to a first embodiment of the present invention, wherein the pressing member 3 is in a pressing position.

[0056] like Figures 1 to 5As shown, in an exemplary embodiment of the present invention, a connector is disclosed. The connector includes: a housing 1, a terminal 2 and a pressing member 3. The terminal 2 is arranged on the housing 1, and includes a welding end 21 for welding to a welding pad 41 of a circuit board 4. The pressing member 3 is movably mounted on the housing 1, and can be moved from a pre-installed position to a pressing position under the drive of the circuit board 4 inserted into the connector.

[0057] like Figures 1 to 5 As shown, in the illustrated embodiment, when the circuit board 4 is inserted into the predetermined installation position in the connector, the pressing member 3 is driven to the pressing position by the circuit board 4. Before the pressing member 3 is moved to the pressing position, the soldering end 21 of the terminal 2 is not pressed by the pressing member 3, so that the soldering end 21 of the terminal 2 is not in contact with the soldering pad 41 on the circuit board 4, so as to prevent the soldering pad 41 from being scratched by the soldering end 21. When the pressing member 3 is moved to the pressing position, the pressing member 3 applies a predetermined pressing force on the soldering end 21 of the terminal 2, so that the soldering end 21 of the terminal 2 is pressed on the soldering pad 41 of the circuit board 4, so as to prevent a cold solder joint.

[0058] like Figures 1 to 5 As shown, in the illustrated embodiment, the connector includes upper and lower rows of terminals 2 that are opposite to each other in the thickness direction Z of the housing 1 and upper and lower pressing members 3 that are opposite to each other in the thickness direction Z of the housing 1. The upper pressing member 3' of the two pressing members 3 is used to press the upper row of terminals 2' of the two rows of terminals 2 onto a row of soldering pads 41 on the front side of the circuit board 4. The lower pressing member 3" of the two pressing members 3 is used to press the lower row of terminals 2" of the two rows of terminals 2 onto a row of soldering pads 41 on the back side of the circuit board 4.

[0059] like Figures 1 to 5 As shown, in the illustrated embodiment, the pressing member 3 is rotatably mounted on the housing 1 and can be rotated from the pre-installed position to the pressing position under the drive of the inserted circuit board 4.

[0060] like Figures 1 to 5 As shown, in the illustrated embodiment, the housing 1 has a front side and a rear side opposite to each other in the longitudinal direction Y thereof, and the terminal 2 extends along the longitudinal direction Y of the housing 1. The housing 1 comprises: a body portion 10; and a pair of support walls 11. The pair of support walls 11 are respectively located on opposite sides of the transverse direction X of the housing 1 and connected to the rear side of the body portion 10. The welding end 21 of the terminal 2 extends from the rear side of the body portion 10 of the housing 1. Both ends of the mounting member 3 are rotatably mounted on the pair of support walls 11 of the housing 1, respectively.

[0061] like Figures 1 to 5As shown, in the illustrated embodiment, a mounting hole 12 is formed on the support wall 11, and mounting shafts 32 are respectively formed at both ends of the mounting member 3. The mounting shafts 32 are rotatably mounted in the mounting hole 12 so that the mounting member 3 can rotate around an axis parallel to the transverse direction X of the shell 1.

[0062] like Figures 1 to 5 As shown, in the illustrated embodiment, a protrusion 33 is formed on the mounting member 3, and a limiting portion 13 is formed on the inner side of the support wall 11 of the housing 1, and the limiting portion 13 has a first limiting surface 13a and a second limiting surface 13b. When the mounting member 3 is in the pre-installed position, the protrusion 33 on the mounting member 3 abuts against the first limiting surface 13a of the limiting portion 13 to keep the mounting member 3 in the pre-installed position. When the mounting member 3 is in the pressed position, the protrusion 33 on the mounting member 3 abuts against the second limiting surface 13b of the limiting portion 13 to keep the mounting member 3 in the pressed position.

[0063] like Figures 1 to 5 As shown, in the illustrated embodiment, a row of positioning grooves 34 is formed on the pressing member 3 , and a portion of the welding end 21 of the terminal 2 is positioned in the corresponding positioning groove 34 .

[0064] like Figures 1 to 5 As shown, in the illustrated embodiment, a protruding pressing portion 31 is formed on the pressing member 3 , and the pressing portion 31 extends continuously along the transverse direction X of the housing 1 , and is used to simultaneously press a row of terminals 2 onto a row of welding pads 41 of the circuit board 4 .

[0065] like Figures 1 to 5 As shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: a connector and a circuit board 4 as shown. The circuit board 4 is inserted into the connector and has a welding pad 41 for welding with the welding end 21 of the terminal 2 of the connector. Before the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4 to prevent the welding pad 41 from being scratched by the welding end 21 during the process of inserting the circuit board into the connector. When the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 is in pressure contact with the welding pad 41 on the circuit board 4 to prevent the occurrence of cold solder joints. Therefore, in the present invention, before the circuit board 4 is inserted into the predetermined installation position in the connector, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4, which can effectively prevent the solder paste on the welding pad 41 of the circuit board 4 from being scratched by the welding end 21 of the terminal 2, thereby improving the welding quality.

[0066] Second embodiment

[0067] Figures 6 to 12 A connector according to a second embodiment of the present invention is shown. Figure 6 A perspective schematic diagram showing a connector according to a second embodiment of the present invention; Figure 7 An exploded schematic diagram showing a connector according to a second embodiment of the present invention; Figure 8 A perspective schematic diagram showing a connector and a circuit board inserted into the connector according to a second embodiment of the present invention;

[0068] Fig. 9 A longitudinal cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pre-installed position; Fig.10 A longitudinal cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pressing position; Fig.11 A transverse cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pre-installed position; Fig.12 A transverse cross-sectional view showing a connector and a circuit board according to a second embodiment of the present invention, wherein the pressing member is in a pressing position.

[0069] like Figures 6 to 12 As shown, in an exemplary embodiment of the present invention, a connector is disclosed. The connector includes: a housing 1, a terminal 2 and a pressing member 3. The terminal 2 is arranged on the housing 1, and includes a welding end 21 for welding to a welding pad 41 of a circuit board 4. The pressing member 3 is movably mounted on the housing 1, and can be moved from a pre-installed position to a pressing position under the drive of the circuit board 4 inserted into the connector.

[0070] like Figures 6 to 12 As shown, in the illustrated embodiment, when the circuit board 4 is inserted into the predetermined installation position in the connector, the pressing member 3 is driven to the pressing position by the circuit board 4. Before the pressing member 3 is moved to the pressing position, the soldering end 21 of the terminal 2 is not pressed by the pressing member 3, so that the soldering end 21 of the terminal 2 is not in contact with the soldering pad 41 on the circuit board 4, so as to prevent the soldering pad 41 from being scratched by the soldering end 21. When the pressing member 3 is moved to the pressing position, the pressing member 3 applies a predetermined pressing force on the soldering end 21 of the terminal 2, so that the soldering end 21 of the terminal 2 is pressed on the soldering pad 41 of the circuit board 4, so as to prevent a cold solder joint.

[0071] like Figures 6 to 12 As shown, in the illustrated embodiment, the connector includes upper and lower rows of terminals 2 that are opposite to each other in the thickness direction Z of the housing 1 and upper and lower pressing members 3 that are opposite to each other in the thickness direction Z of the housing 1. The upper pressing member 3' of the two pressing members 3 is used to press the upper row of terminals 2' of the two rows of terminals 2 onto a row of soldering pads 41 on the front side of the circuit board 4. The lower pressing member 3" of the two pressing members 3 is used to press the lower row of terminals 2" of the two rows of terminals 2 onto a row of soldering pads 41 on the back side of the circuit board 4.

[0072] like Figures 6 to 12 As shown, in the illustrated embodiment, the pressing member 3 is mounted on the shell 1 in a manner that it can move along the thickness direction Z of the shell 1, so that the pressing member 3 can move from the pre-installed position to the pressing position along the thickness direction Z of the shell 1 under the drive of the inserted circuit board 4.

[0073] like Figures 6 to 12 As shown, in the illustrated embodiment, the housing 1 has a front side and a rear side opposite to each other in the longitudinal direction Y thereof, and the terminal 2 extends along the longitudinal direction Y of the housing 1. The housing 1 comprises: a body portion 10; and a pair of support walls 11. The pair of support walls 11 are respectively located on opposite sides of the transverse direction X of the housing 1 and connected to the rear side of the body portion 10. The welding end 21 of the terminal 2 extends from the rear side of the body portion 10 of the housing 1. Both ends of the mounting member 3 are movably mounted to the pair of support walls 11 of the housing 1, respectively.

[0074] like Figures 6 to 12 As shown, in the illustrated embodiment, a mounting groove 14 is formed on the support wall 11, and raised mounting portions 34 are respectively formed at both ends of the mounting member 3, and the mounting portions 34 are slidably installed in the mounting groove 14, so that the mounting member 3 can move along the thickness direction Z of the shell 1.

[0075] like Figures 6 to 12 As shown, in the illustrated embodiment, a protruding buckle portion 35 is formed on the mounting portion 34 of the mounting member 3, and a protruding first limiting portion 15a and a second limiting portion 15b are formed on the inner side of the supporting wall 11 of the housing 1. When the mounting member 3 is in the pre-installed position, the buckle portion 35 on the mounting member 3 engages with the first limiting portion 15a to keep the mounting member 3 in the pre-installed position. When the mounting member 3 is in the pressed position, the buckle portion 35 on the mounting member 3 engages with the second limiting portion 15b to keep the mounting member 3 in the pressed position.

[0076] like Figures 6 to 12 As shown, in the illustrated embodiment, a row of driving parts 36 are formed on the pressing member 3, and the driving part 36 has an inclined surface 36a inclined to the thickness direction Z of the shell 1, and the inclined surface 36a is used for sliding contact with the inserted circuit board 4, and can convert the movement of the circuit board 4 along the longitudinal direction Y of the shell 1 into the movement of the pressing member 3 along the thickness direction Z of the shell 1.

[0077] like Figures 6 to 12 As shown, in the illustrated embodiment, a row of pressing protrusions 37 are formed on the pressing member 3, and a row of driving parts 36 are respectively formed on the top surfaces of the row of pressing protrusions 37, each pressing protrusion 37 has a pair of pressing shoulders 37a, and the pair of pressing shoulders 37a are used to press the welding ends 21 of two adjacent terminals 2 onto the two welding pads 41 of the circuit board 4 at the same time.

[0078] like Figures 6 to 12 As shown, in the illustrated embodiment, a row of grooves 38 is formed on the pressing member 3, and two adjacent pressing protrusions 37 are separated by a corresponding groove 38. A row of driving parts 36 on the upper mounting member 3' is suitable for being respectively inserted into and positioned in a row of grooves 38 on the lower mounting member 3". A row of driving parts 36 on the lower mounting member 3" is suitable for being respectively inserted into and positioned in a row of grooves 38 on the upper mounting member 3'.

[0079] like Figures 6 to 12 As shown, in the illustrated embodiment, a slot 110 is formed on the support wall 11 of the housing 1, and buckle protrusions 111 are respectively formed on two inner side surfaces of the slot 110 that are opposite to each other in the thickness direction Z of the housing 1. When the circuit board 4 is inserted into the predetermined installation position, a part of the circuit board 4 is inserted into the slot 110, and the buckle protrusion 111 is engaged with the slot hole 42 on the circuit board 4 to keep the circuit board 4 at the predetermined installation position.

[0080] like Figures 6 to 12 As shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: a connector and a circuit board 4 as shown. The circuit board 4 is inserted into the connector and has a welding pad 41 for welding with the welding end 21 of the terminal 2 of the connector. Before the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4 to prevent the welding pad 41 from being scratched by the welding end 21 during the process of inserting the circuit board into the connector. When the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 is in pressure contact with the welding pad 41 on the circuit board 4 to prevent the occurrence of cold solder joints. Therefore, in the present invention, before the circuit board 4 is inserted into the predetermined installation position in the connector, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4, which can effectively prevent the solder paste on the welding pad 41 of the circuit board 4 from being scratched by the welding end 21 of the terminal 2, thereby improving the welding quality.

[0081] Third embodiment

[0082] Figures 13 to 18 A connector according to a third embodiment of the present invention is shown. Fig.13 A perspective schematic diagram showing a connector according to a third embodiment of the present invention; Fig.14 A longitudinal cross-sectional view showing a connector according to a third embodiment of the present invention, showing a protrusion engaging with a slot on a circuit board; Fig.15 Another longitudinal sectional view showing a connector according to a third embodiment of the present invention; Fig.16 A perspective cross-sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has been inserted into a predetermined mounting position; Fig.17A longitudinal sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has not yet been inserted into a predetermined mounting position; Fig.18 A longitudinal sectional view showing a connector and a circuit board according to a third embodiment of the present invention, wherein the circuit board has been inserted into a predetermined mounting position.

[0083] like Figures 13 to 18 As shown, in an exemplary embodiment of the present invention, a connector is disclosed. The connector includes: a housing 1 and a terminal 2. The housing 1 has a slot 101 extending along the lateral direction X and the longitudinal direction Y of the housing 1 for inserting a circuit board 4. The terminal 2 is arranged on the housing 1 and includes a welding end 21 for welding to a welding pad 41 of the circuit board 4.

[0084] like Figures 13 to 18 As shown, in the illustrated embodiment, the shell 1 includes two elastic walls 102 which are opposite to each other in the thickness direction Z of the shell 1 and are respectively located on the upper and lower sides of the slot 101, a portion of the terminal 2 is retained in the elastic wall 102, and the welding end 21 of the terminal 2 extends from the elastic wall 102.

[0085] like Figures 13 to 18 As shown, in the illustrated embodiment, before the circuit board 4 is inserted into the predetermined installation position, the two elastic walls 102 are driven to the expanded position by the circuit board 4 so that the welding end 21 of the terminal 2 is not in contact with the welding pad 41 on the circuit board 4 to prevent the welding pad 41 from being scratched by the welding end 21.

[0086] like Figures 13 to 18 As shown, in the illustrated embodiment, when the circuit board 4 is inserted into the predetermined installation position, the two elastic walls 102 elastically reset to the initial position, so that the welding end 21 of the terminal 2 is in pressure contact with the welding pad 41 on the circuit board 4 to prevent cold solder joints.

[0087] like Figures 13 to 18 As shown, in the illustrated embodiment, the connector includes upper and lower rows of terminals 2 that are opposite to each other in the thickness direction Z of the housing 1, the welding ends 21 of the upper row of terminals 2' of the two rows of terminals 2 are used to be welded to a row of welding pads 41 on the front side of the circuit board 4, and the welding ends 21 of the lower row of terminals 2" of the two rows of terminals 2 are used to be welded to a row of welding pads 41 on the back side of the circuit board 4.

[0088] like Figures 13 to 18As shown, in the illustrated embodiment, the elastic wall 102 has two opposite ends in the transverse direction X of the housing 1, and protrusions 103 are respectively formed on the inner side surfaces of the two ends of the elastic wall 102, and the protrusions 103 are used to engage with the slots 43 on the circuit board 4. Before the circuit board 4 is inserted into the predetermined installation position, the protrusions 103 abut against the surface of the circuit board 4, so that the two elastic walls 102 are stretched open to the stretched position by the circuit board 4. When the circuit board 4 is inserted into the predetermined installation position, the protrusions 103 engage with the slots 43 on the circuit board 4, so that the two elastic walls 102 are elastically reset to the initial position.

[0089] However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, the elastic wall 102 has two opposite ends in the transverse direction X of the housing 1, and slots are respectively formed on the inner side surfaces of the two ends of the elastic wall 102, and the slots are used to engage with the protrusions on the circuit board 4. Before the circuit board 4 is inserted into the predetermined installation position, the protrusions abut against the inner side surfaces of the elastic wall 102, so that the two elastic walls 102 are stretched to the stretched position by the circuit board 4. When the circuit board 4 is inserted into the predetermined installation position, the protrusions engage with the slots on the elastic wall 102, so that the two elastic walls 102 are elastically reset to the initial position.

[0090] like Figures 13 to 18 As shown, in the illustrated embodiment, when the circuit board 4 is inserted into a predetermined installation position, the elastic wall 102 applies a predetermined pressing force on the soldering end 21 of the terminal 2 so that the soldering end 21 of the terminal 2 is in reliable contact with the soldering pad 41 on the circuit board 4 .

[0091] like Figures 13 to 18 As shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: a connector and a circuit board 4 as shown. The circuit board 4 is inserted into the connector and has a welding pad 41 for welding with the welding end 21 of the terminal 2 of the connector. Before the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4 to prevent the welding pad 41 from being scratched by the welding end 21 during the process of inserting the circuit board into the connector. When the circuit board 4 is inserted into the predetermined installation position, the welding end 21 of the terminal 2 is in pressure contact with the welding pad 41 on the circuit board 4 to prevent the occurrence of cold solder joints. Therefore, in the present invention, before the circuit board 4 is inserted into the predetermined installation position in the connector, the welding end 21 of the terminal 2 does not contact the welding pad 41 on the circuit board 4, which can effectively prevent the solder paste on the welding pad 41 of the circuit board 4 from being scratched by the welding end 21 of the terminal 2, thereby improving the welding quality.

[0092] Those skilled in the art will appreciate that the embodiments described above are exemplary and may be improved upon by those skilled in the art. The structures described in the various embodiments may be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present invention.

[0093] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0094] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0095] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A connector, characterized in that: include: Housing (1); A terminal (2) is provided on the housing (1) and comprises a welding end (21) for welding to a welding pad (41) of a circuit board (4); and A pressing member (3) is movably mounted on the housing (1) and is capable of moving from a pre-installed position to a pressing position under the drive of a circuit board (4) inserted into the connector. When the circuit board (4) is inserted into a predetermined installation position in the connector, the pressing member (3) is driven by the circuit board (4) to the pressing position. Before the pressing member (3) is moved to the pressing position, the welding end (21) of the terminal (2) is not pressed by the pressing member (3), so that the welding end (21) of the terminal (2) does not contact the welding pad (41) on the circuit board (4). When the pressing member (3) is moved to the pressing position, the pressing member (3) applies a predetermined pressing force on the welding end (21) of the terminal (2), so that the welding end (21) of the terminal (2) is pressed onto the welding pad (41) of the circuit board (4).

2. The connector according to claim 1, characterized in that: The connector comprises upper and lower rows of terminals (2) opposite to each other in the thickness direction (Z) of the housing (1) and upper and lower pressing members (3) opposite to each other in the thickness direction (Z) of the housing (1); The upper pressing piece (3') of the two pressing pieces (3) is used to press the upper row of terminals (2') of the two rows of terminals (2) onto a row of welding pads (41) on the front side of the circuit board (4); The lower pressing piece (3") of the two pressing pieces (3) is used to press the lower row of terminals (2") of the two rows of terminals (2) onto a row of welding pads (41) on the back side of the circuit board (4).

3. The connector according to claim 2, characterized in that: The pressing member (3) is rotatably mounted on the housing (1), and can be rotated from the pre-installed position to the pressing position under the drive of the inserted circuit board (4).

4. The connector according to claim 3, characterized in that: The housing (1) has a front side and a rear side opposite to each other in the longitudinal direction (Y) thereof, and the terminal (2) extends along the longitudinal direction (Y) of the housing (1); The housing (1) comprises: Body part (10); and A pair of support walls (11) are respectively located on opposite sides of the housing (1) in the transverse direction (X) and connected to the rear side of the main body (10). The welding end (21) of the terminal (2) extends from the rear side of the main body (10) of the housing (1). Both ends of the mounting member (3) are rotatably mounted on a pair of supporting walls (11) of the housing (1).

5. The connector according to claim 4, characterized in that: A mounting hole (12) is formed on the support wall (11), and mounting shafts (32) are respectively formed at both ends of the mounting member (3), and the mounting shafts (32) are rotatably mounted in the mounting hole (12), so that the mounting member (3) can rotate around an axis parallel to the transverse direction (X) of the housing (1).

6. The connector according to claim 4, characterized in that: A protrusion (33) is formed on the mounting member (3), and a limiting portion (13) is formed on the inner side of the supporting wall (11) of the housing (1), wherein the limiting portion (13) has a first limiting surface (13a) and a second limiting surface (13b); When the mounting member (3) is in the pre-installed position, the protrusion (33) on the mounting member (3) abuts against the first limiting surface (13a) of the limiting portion (13) to keep the mounting member (3) in the pre-installed position; When the mounting member (3) is in the pressing position, the protrusion (33) on the mounting member (3) abuts against the second limiting surface (13b) of the limiting portion (13) to keep the mounting member (3) in the pressing position.

7. The connector according to claim 4, characterized in that: A row of positioning grooves (34) is formed on the pressing member (3), and a portion of the welding end (21) of the terminal (2) is positioned in the corresponding positioning groove (34).

8. The connector according to claim 4, characterized in that: A protruding pressing portion (31) is formed on the pressing piece (3), and the pressing portion (31) extends continuously along the transverse direction (X) of the housing (1) and is used to simultaneously press a row of terminals (2) onto a row of welding pads (41) of the circuit board (4).

9. The connector according to claim 2, characterized in that: The pressing member (3) is mounted on the housing (1) in a manner that allows it to move along the thickness direction (Z) of the housing (1), so that the pressing member (3) can move from the pre-installed position to the pressing position along the thickness direction (Z) of the housing (1) under the drive of the inserted circuit board (4).

10. The connector according to claim 9, characterized in that: The housing (1) has a front side and a rear side opposite to each other in the longitudinal direction (Y) thereof, and the terminal (2) extends along the longitudinal direction (Y) of the housing (1); The housing (1) comprises: Body part (10); and A pair of support walls (11) are respectively located on opposite sides of the housing (1) in the transverse direction (X) and connected to the rear side of the main body (10). The welding end (21) of the terminal (2) extends from the rear side of the main body (10) of the housing (1). Both ends of the mounting member (3) are movably mounted on a pair of supporting walls (11) of the housing (1).

11. The connector according to claim 10, characterized in that: A mounting groove (14) is formed on the support wall (11), and protruding mounting portions (34) are respectively formed at both ends of the mounting member (3), and the mounting portions (34) are slidably mounted in the mounting groove (14), so that the mounting member (3) can move along the thickness direction (Z) of the shell (1).

12. The connector according to claim 11, characterized in that: A protruding buckle portion (35) is formed on the mounting portion (34) of the mounting member (3), and a protruding first limiting portion (15a) and a second limiting portion (15b) are formed on the inner side of the supporting wall (11) of the housing (1); When the mounting member (3) is in the pre-installed position, the buckle portion (35) on the mounting member (3) engages with the first limiting portion (15a) to keep the mounting member (3) in the pre-installed position; When the mounting member (3) is in the pressing position, the buckle portion (35) on the mounting member (3) engages with the second limiting portion (15b) to keep the mounting member (3) in the pressing position.

13. The connector according to claim 9, characterized in that: A row of driving parts (36) is formed on the pressing member (3), and the driving part (36) has an inclined surface (36a) inclined to the thickness direction (Z) of the shell (1). The inclined surface (36a) is used to slide in contact with the inserted circuit board (4) and can convert the movement of the circuit board (4) along the longitudinal direction (Y) of the shell (1) into the movement of the pressing member (3) along the thickness direction (Z) of the shell (1).

14. The connector according to claim 13, characterized in that: A row of pressing protrusions (37) is formed on the pressing member (3), and the row of driving parts (36) are respectively formed on the top surface of the row of pressing protrusions (37), and each of the pressing protrusions (37) has a pair of pressing shoulders (37a), and the pair of pressing shoulders (37a) are used to simultaneously press the welding ends (21) of two adjacent terminals (2) onto two welding pads (41) of the circuit board (4).

15. The connector according to claim 14, characterized in that: A row of grooves (38) is formed on the pressing member (3), and two adjacent pressing protrusions (37) are separated by a corresponding groove (38); A row of driving parts (36) on the upper mounting member (3') is adapted to be respectively inserted into and positioned in a row of grooves (38) on the lower mounting member (3"); A row of driving parts (36) on the lower mounting member (3") is adapted to be respectively inserted into and positioned in a row of grooves (38) on the upper mounting member (3').

16. The connector according to claim 10, characterized in that: A slot (110) is formed on the supporting wall (11) of the housing (1), and buckle protrusions (111) are respectively formed on two inner side surfaces of the slot (110) that are opposite to each other in the thickness direction (Z) of the housing (1); When the circuit board (4) is inserted into a predetermined installation position, a portion of the circuit board (4) is inserted into the slot (110), and the snap-fit ​​protrusion (111) engages with the slot hole (42) on the circuit board (4) to hold the circuit board (4) in the predetermined installation position.

17. A connector, characterized in that: include: A housing (1) having a slot (101) extending in a transverse direction (X) and a longitudinal direction (Y) of the housing (1) and used for inserting a circuit board (4); and A terminal (2) is arranged on the housing (1), comprising a welding end (21) for welding to a welding pad (41) of a circuit board (4), The housing (1) comprises two elastic walls (102) which are opposite to each other in the thickness direction (Z) of the housing (1) and are respectively located on the upper and lower sides of the slot (101); a portion of the terminal (2) is retained in the elastic wall (102), and a welding end (21) of the terminal (2) extends out from the elastic wall (102). Before the circuit board (4) is inserted into a predetermined installation position, the two elastic walls (102) are driven by the circuit board (4) to an open position, so that the welding end (21) of the terminal (2) is not in contact with the welding pad (41) on the circuit board (4), thereby preventing the welding pad (41) from being scratched by the welding end (21). When the circuit board (4) is inserted into the predetermined installation position, the two elastic walls (102) are elastically reset to the initial position, so that the welding end (21) of the terminal (2) is in pressure contact with the welding pad (41) on the circuit board (4), thereby preventing cold solder joints.

18. The connector according to claim 17, characterized in that: The connector comprises upper and lower rows of terminals (2) which are opposite to each other in the thickness direction (Z) of the housing (1); the welding ends (21) of the upper row of terminals (2') of the two rows of terminals (2) are used to be welded to a row of welding pads (41) on the front side of the circuit board (4); and the welding ends (21) of the lower row of terminals (2") of the two rows of terminals (2) are used to be welded to a row of welding pads (41) on the back side of the circuit board (4).

19. The connector according to claim 17, characterized in that: The elastic wall (102) has two opposite ends in the transverse direction (X) of the housing (1), and protrusions (103) are respectively formed on the inner side surfaces of the two ends of the elastic wall (102), and the protrusions (103) are used to engage with the slots (43) on the circuit board (4); Before the circuit board (4) is inserted into the predetermined installation position, the protrusion (103) abuts against the surface of the circuit board (4), so that the two elastic walls (102) are stretched open by the circuit board (4) to the stretched position; When the circuit board (4) is inserted into the predetermined installation position, the protrusion (103) engages with the slot (43) on the circuit board (4), so that the two elastic walls (102) are elastically reset to the initial position.

20. The connector according to claim 17, characterized in that: The elastic wall (102) has two opposite ends in the transverse direction (X) of the housing (1), and slots are respectively formed on the inner side surfaces of the two ends of the elastic wall (102), and the slots are used to engage with the protrusions on the circuit board (4); Before the circuit board (4) is inserted into the predetermined installation position, the protrusion abuts against the inner side surface of the elastic wall (102), so that the two elastic walls (102) are spread apart by the circuit board (4) to the spread apart position; When the circuit board (4) is inserted into the predetermined installation position, the protrusion engages with the slot on the elastic wall (102), so that the two elastic walls (102) are elastically reset to the initial position.

21. The connector according to claim 17, characterized in that: When the circuit board (4) is inserted into the predetermined installation position, the elastic wall (102) applies a predetermined pressing force on the welding end (21) of the terminal (2), so that the welding end (21) of the terminal (2) is in reliable contact with the welding pad (41) on the circuit board (4).

22. A connector assembly, characterized in that: include: The connector according to any one of claims 1 to 21; and A circuit board (4) is inserted into the connector and has a welding pad (41) for welding with the welding end (21) of the terminal (2) of the connector, Before the circuit board (4) is inserted into a predetermined installation position, the welding end (21) of the terminal (2) is not in contact with the welding pad (41) on the circuit board (4), so as to prevent the welding pad (41) from being scratched by the welding end (21). When the circuit board (4) is inserted into the predetermined installation position, the welding end (21) of the terminal (2) is in pressure contact with the welding pad (41) on the circuit board (4) to prevent cold soldering.

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