Connector and connector assembly

Abstract

To provide a connector capable of not only ensuring reliable contact between a soldering end part of a terminal and a soldering pad of a circuit board but also preventing the soldering pad of the circuit board from being damaged by the soldering end part of the terminal, thereby improving soldering quality.SOLUTION: This connector is provided with two rows of terminals arranged in a housing 1 and having soldered end part side walls extending backward from a rear 1d side 2a of the housing 1, and two pressing plates 3. A pair of vertical side plates 10 are formed on the rear 2a of the housing, the vertical side plates 10 are slidably engaged with each of the two pressing plates 3, and the two pressing plates 3 are adapted to slide by pressing the inserted circuit substrate to move from a pre-assembly position in which the solder-end side walls of the terminals are not pressed to a final assembly position in which the solder-end side walls of the terminals are pressed against the circuit substrate, and 2a SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202411047368.3, filed with the State Intellectual Property Office of China on July 31, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a connector and a connector assembly including the connector. [Background technology]

[0003] In the prior art, connector terminals are typically soldered to the surface of a circuit board using a surface-mount method. During soldering, the connector's own weight causes the connector terminals to contact the solder paste on the circuit board. After the solder paste is heated and melted, the molten liquid solder rises onto the terminals due to the surface tension of the solder itself. After the liquid solder cools and solidifies, the soldered connection between the terminals and the circuit board is achieved. However, during soldering, the connector housing releases residual stress after heating, causing thermal expansion. This makes the terminals prone to movement during the heating process, potentially causing the terminals to lose contact with the solder paste and preventing the solder from rising completely, resulting in the formation of false solder joints. This can result in poor soldering quality. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above disadvantages. [Means for solving the problem]

[0005] According to an aspect of the present invention, there is provided a connector comprising: a housing having vertically opposed top and bottom walls, a pair of laterally opposed side walls, and a longitudinally opposed front opening and rear wall; upper and lower rows of terminals disposed in the housing, the upper and lower rows of terminals extending rearward from the rear wall of the housing and having soldering ends configured to be soldered to a circuit board; and two pressure plates, including an upper pressure plate disposed above the soldering ends of the upper row of terminals and a lower pressure plate disposed below the soldering ends of the lower row of terminals. A pair of laterally opposite vertical side plates are formed on the rear wall of the housing, and the vertical side plates are slidably engaged with two pressing plates, respectively, and the two pressing plates are adapted to slide by pressing a circuit board inserted between the soldering ends of the two rows of terminals, and to move from a pre-assembly position in which the soldering ends of the terminals are not pressed, to a final assembly position in which the soldering ends of the terminals are pressed against the circuit board.

[0006] According to an exemplary embodiment of the present invention, two guide slots are formed in each of the vertical side plates, and the two guide slots slidably engage with the protrusions on the end surfaces of the two pressure plates, respectively.

[0007] According to another exemplary embodiment of the present invention, when the two pressure plates are in the pre-assembly position, the soldering ends of the two rows of terminals do not contact the soldering pads of the inserted circuit board or have a contact force with the soldering pads that is less than a predetermined value, thereby preventing the soldering ends of the terminals from damaging the soldering pads of the inserted circuit board.

[0008] According to another exemplary embodiment of the present invention, when the two pressure plates are in the final assembly position, by pressing the two pressure plates, the soldering ends of the two rows of terminals come into contact with the soldering pads of the inserted circuit board with a contact force greater than a predetermined value, ensuring that the soldering ends of the terminals are reliably soldered to the soldering pads of the circuit board.

[0009] According to another exemplary embodiment of the present invention, each of the guide slots has a first end and a second end that are vertically opposite to each other, the second end of the guide slot is closer to the rear wall of the housing than the first end, and when the two pressure plates are in a pre-assembly position, the protrusion of the pressure plate is located at the first end of the guide slot, and when the two pressure plates are pressed to a final assembly position by the inserted circuit board, the protrusion of the pressure plate moves to the second end of the guide slot.

[0010] According to another exemplary embodiment of the present invention, the guide slot is formed with: a first guide surface located at a first end of the guide slot, the first guide surface extending in a longitudinal direction and configured to guide the protrusion of the pressure plate to move along the first guide surface; a second guide surface located at a second end of the guide slot, the second guide surface extending in a longitudinal direction and configured to guide the protrusion of the pressure plate to move along the second guide surface; and a guide slope located between the first end and the second end of the guide slot, the guide slope being configured to guide the protrusion of the pressure plate to move along the guide slope, the guide slope being connected between the first guide surface and the second guide surface to guide the protrusion of the pressure plate to move from the first guide surface to the second guide surface.

[0011] According to another exemplary embodiment of the present invention, when the protrusion of the pressure plate moves along the first guide surface, the pressure plate does not press the soldering ends of the terminals so that the soldering ends of the terminals do not contact the soldering pads of the inserted circuit board.

[0012] According to another exemplary embodiment of the present invention, when the protrusion of the pressure plate moves along the second guide surface, the pressure plate presses the soldering end of the terminal so that the soldering end of the terminal contacts the soldering pad of the inserted circuit board with a contact force greater than a predetermined value.

[0013] According to another exemplary embodiment of the present invention, as the protrusion of the pressure plate moves along the guide slope, the pressure plate gradually moves from a pre-assembly position in which the soldering ends of the terminals are not pressed, to a final assembly position in which the soldering ends of the terminals are pressed.

[0014] According to another exemplary embodiment of the present invention, a step is formed on each of both ends of the pressure plate, and the step is configured to abut against the front end surface of the inserted circuit board, so that the inserted circuit board abuts against and presses the pressure plate, causing the pressure plate to move along the guide slot from the pre-assembly position to the final assembly position.

[0015] According to another exemplary embodiment of the present invention, a vertically extending insertion slot is formed in the vertical side plate, and two guide slots in the vertical side plate are symmetrically arranged above and below the insertion slot, and the side edges on both sides of the circuit board are adapted to be inserted into the insertion slots of the pair of vertical side plates, respectively, to guide the circuit board inserted between the soldering ends of the two rows of terminals in the vertical direction.

[0016] According to another exemplary embodiment of the present invention, the outer sides of the pair of vertical side panels are flush with the outer surfaces of the pair of side walls of the housing, the upper and lower sides of the pair of vertical side panels are flush with the top and bottom surfaces of the housing, and the pair of vertical side panels extend a predetermined length longitudinally rearward from the rear sides of the pair of side walls.

[0017] According to another exemplary embodiment of the present invention, the top wall, bottom wall, pair of side walls, and rear wall of the housing define an internal cavity, and the terminals have a fixing portion fixed to the rear wall and a mating portion located in the internal cavity of the housing, and the mating portion of the terminals is adapted to mate with a mating terminal of a mating connector inserted into the internal cavity of the housing.

[0018] According to another aspect of the present invention, there is provided a connector assembly comprising the above-described connector and a circuit board, wherein a row of soldering pads is formed on each of the front and rear sides of the circuit board and configured to be soldered to the respective soldering ends of the two rows of terminals, which are pressed onto the soldering pads of the circuit board by two pressure plates and then soldered to the soldering pads of the circuit board, ensuring that the soldering ends of the terminals are securely soldered to the soldering pads of the circuit board.

[0019] According to an exemplary embodiment of the present invention, in the process of inserting a circuit board between the soldering ends of the two rows of terminals of a connector, the two pressure plates are pressed by the circuit board and move along the guide slots from a pre-assembly position where the soldering ends of the terminals are not pressed, to a final assembly position where the soldering ends of the terminals are pressed against the circuit board.

[0020] According to another exemplary embodiment of the present invention, the connector assembly further comprises a mating connector that mates with the connector.

[0021] In the above exemplary embodiments according to the present invention, during soldering, the soldering ends of the terminals are securely pressed against the soldering pads of the circuit board by the pressure plate, thereby ensuring reliable contact between the soldering ends of the terminals and the soldering pads of the circuit board, thereby effectively avoiding the problem of false soldering and improving soldering quality.

[0022] In addition, in the above exemplary embodiments according to the present invention, simply in the process of inserting the circuit board, the soldering ends of the terminals do not contact the soldering pads of the circuit board or have a contact force with the soldering pads that is smaller than a predetermined value, which can effectively prevent the soldering pads of the circuit board from being damaged by the soldering ends of the terminals, and thus further improve the soldering quality.

[0023] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments of the invention taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a diagrammatic perspective view of a connector according to an exemplary embodiment of the present invention; [Figure 2] 1 is an illustrative exploded view of a connector according to an exemplary embodiment of the present invention. [Figure 3] 1 is a partial cross-sectional view of a connector according to an exemplary embodiment of the present invention. [Figure 4] 1 is a diagrammatic perspective view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate in a pre-assembly position; [Figure 5] 1 is a side view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate in a pre-assembly position; [Figure 6] 1 is a cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate in a pre-assembly position; [Figure 7] 1 is a diagrammatic perspective view of a connector assembly according to an exemplary embodiment of the present invention, with the pressure plate in the final assembly position; [Figure 8] 1 is a side view of a connector assembly according to an exemplary embodiment of the present invention, with the pressure plate in the final assembly position; [Figure 9] 1 is a cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention, with the pressure plate in a final assembly position; DETAILED DESCRIPTION OF THE INVENTION

[0025] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout the drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0026] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are diagrammatically shown to simplify the drawings.

[0027] In accordance with the general concept of the present invention, there is provided a connector comprising a housing having vertically opposed top and bottom walls, a pair of laterally opposed side walls, and longitudinally opposed front and rear walls, upper and lower rows of terminals disposed in the housing, the upper and lower rows of terminals extending rearward from the rear wall of the housing and having soldering ends configured to be soldered to a circuit board, and two pressure plates, including an upper pressure plate disposed above the soldering ends of the upper row of terminals and a lower pressure plate disposed below the soldering ends of the lower row of terminals. A pair of laterally opposite vertical side plates are formed on the rear wall of the housing, and the vertical side plates are slidably engaged with two pressing plates, respectively, and the two pressing plates are adapted to slide by pressing a circuit board inserted between the soldering ends of the two rows of terminals, and to move from a pre-assembly position in which the soldering ends of the terminals are not pressed, to a final assembly position in which the soldering ends of the terminals are pressed against the circuit board.

[0028] According to another general aspect of the present invention, there is provided a connector assembly comprising the connector described above and a circuit board, wherein a row of soldering pads is formed on each of the front and rear sides of the circuit board and configured to be soldered to respective soldering ends of two rows of terminals, the soldering ends of the two rows of terminals being pressed onto the soldering pads of the circuit board by two pressure plates and then soldered to the soldering pads of the circuit board, ensuring that the soldering ends of the terminals are securely soldered to the soldering pads of the circuit board.

[0029] FIG. 1 is a diagrammatic perspective view of a connector according to an exemplary embodiment of the present invention. FIG. 2 is a diagrammatic exploded view of a connector according to an exemplary embodiment of the present invention. FIG. 3 is a diagrammatic partial cross-sectional view of a connector according to an exemplary embodiment of the present invention. FIG. 4 is a diagrammatic perspective view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate 3 in a pre-assembly position. FIG. 5 is a diagrammatic side view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate 3 in a pre-assembly position. FIG. 6 is a diagrammatic cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate 3 in a pre-assembly position. FIG. 7 is a diagrammatic perspective view of a connector assembly according to an exemplary embodiment of the present invention, with a pressure plate 3 in a final assembly position. Figure 8 is a side view of a connector assembly according to an exemplary embodiment of the present invention, with the pressure plate 3 in the final assembly position. Figure 9 is a cross-sectional view of a connector assembly according to an exemplary embodiment of the present invention, with the pressure plate 3 in the final assembly position.

[0030] As shown in FIGS. 1 to 9 , a connector is disclosed in an exemplary embodiment of the present invention. The connector includes a housing 1, an upper row of terminals 2, a lower row of terminals 2, and two pressure plates 3. The housing 1 has a top wall 1a and a bottom wall 1b opposite each other in the vertical direction Z, a pair of side walls 1c opposite each other in the horizontal direction X, and a front opening and a rear wall 1d opposite each other in the longitudinal direction Y. The upper row of terminals 2 and the lower row of terminals 2 are disposed in the housing 1, extend rearward from the rear wall 1d of the housing 1, and have soldering ends 2a configured to be soldered to a circuit board 4. The two pressure plates 3 include an upper pressure plate 3 disposed above the soldering ends 2a of the upper row of terminals 2 and a lower pressure plate 3 disposed below the soldering ends 2a of the lower row of terminals 2. A pair of vertical side plates 10 opposite to each other in the lateral direction X are formed on the rear wall 1d of the housing 1, and two guide slots 11 are formed in each of the vertical side plates 10, and the two guide slots 11 slidably engage with protrusions 31 on the end faces of the two pressing plates 3, respectively. The two pressing plates 3 are adapted to slide along the guide slots 11 from a pre-assembly position (shown in FIGS. 4 to 6) in which the soldering ends 2a of the terminals 2 are not pressed, to a final assembly position (shown in FIGS. 7 to 9) in which the soldering ends 2a of the terminals 2 are pressed against the circuit board 4 by pressing the circuit board 4 inserted between the soldering ends 2a of the two rows of terminals 2.

[0031] As shown in Figures 1 to 9, in the illustrated embodiment, when the two pressure plates 3 are in the pre-assembly position, the soldering ends 2a of the two rows of terminals 2 do not contact the soldering pads 4a of the inserted circuit board 4 or have a contact force with the soldering pads 4a that is smaller than a predetermined value, thereby preventing the soldering ends 2a of the terminals 2 from damaging the soldering pads 4a of the inserted circuit board 4.

[0032] As shown in Figures 1 to 9, in the illustrated embodiment, when the two pressure plates 3 are in the final assembly position, by pressing the two pressure plates 3, the soldering ends 2a of the two rows of terminals 2 come into contact with the soldering pads 4a of the inserted circuit board 4 with a contact force greater than a predetermined value, ensuring that the soldering ends 2a of the terminals 2 are reliably soldered to the soldering pads 4a of the circuit board 4.

[0033] 1 to 9, in the illustrated embodiment, each of the guide slots 11 has a first end and a second end opposite to each other in the longitudinal direction Y, and the second end of the guide slot 11 is closer to the rear wall 1d of the housing 1 than the first end. When the two pressure plates 3 are in the pre-assembly position as shown in FIGS. 4 to 6, the protrusions 31 of the pressure plates 3 are located at the first ends of the guide slots 11. When the two pressure plates 3 are pressed to the final assembly position by the inserted circuit board 4 as shown in FIGS. 7 to 9, the protrusions 31 of the pressure plates 3 move to the second ends of the guide slots 11.

[0034] As shown in FIGS. 1 to 9 , in the illustrated embodiment, the guide slot 11 is formed with a first guide surface 11a, a second guide surface 11b, and a guide slope 11c. The first guide surface 11a is located at a first end of the guide slot 11, extends in the vertical direction Y, and is configured to guide the protrusion 31 of the pressure plate 3 to move along the first guide surface. The second guide surface 11b is located at a second end of the guide slot 11, extends in the vertical direction Y, and is configured to guide the protrusion 31 of the pressure plate 3 to move along the second guide surface. The guide slope 11c is located between the first end and the second end of the guide slot 11, and is configured to guide the protrusion 31 of the pressure plate 3 to move along the guide slope 11c. The guide slope 11c is connected between the first guide surface 11a and the second guide surface 11b, and guides the protrusion 31 of the pressing plate 3 to move from the first guide surface 11a to the second guide surface 11b.

[0035] As shown in Figures 1 to 9, in the illustrated embodiment, when the protrusion 31 of the pressure plate 3 moves along the first guide surface 11a, the pressure plate 3 does not press the soldering end 2a of the terminal 2 so that the soldering end 2a of the terminal 2 does not come into contact with the soldering pad 4a of the inserted circuit board 4.

[0036] As shown in Figures 1 to 9, in the illustrated embodiment, when the protrusion 31 of the pressure plate 3 moves along the second guide surface 11b, the pressure plate 3 presses the soldering end 2a of the terminal 2 so that the soldering end 2a of the terminal 2 contacts the soldering pad 4a of the inserted circuit board 4 with a contact force greater than a predetermined value.

[0037] As shown in Figures 1 to 9, in the illustrated embodiment, when the protrusion 31 of the pressure plate 3 moves along the guide slope 11c, the pressure plate 3 gradually moves from a pre-assembly position where the soldering end 2a of the terminal 2 is not pressed, to a final assembly position where the soldering end 2a of the terminal 2 is pressed.

[0038] As shown in Figures 1 to 9, in the illustrated embodiment, a step portion 32 is formed on each of both end portions of the pressure plate 3, and the step portion 32 is configured to abut against the front end surface of the inserted circuit board 4, so that the inserted circuit board 4 abuts against and presses the pressure plate 3, causing it to move along the guide slot 11 from the pre-assembly position to the final assembly position.

[0039] 1 to 9, in the illustrated embodiment, an insertion slot 12 extending in the vertical direction Y is formed in the vertical side plate 10, and two guide slots 11 in the vertical side plate 10 are symmetrically arranged above and below the insertion slot 12. Side edges on both sides of the circuit board 4 are adapted to be inserted into the insertion slots 12 of the pair of vertical side plates 10, respectively, and guide the circuit board 4, which is inserted between the soldering ends 2a of the two rows of terminals 2, in the vertical direction Y.

[0040] As shown in Figures 1 to 9, in the illustrated embodiment, the outer sides of the pair of vertical side plates 10 are flush with the outer surfaces of the pair of side walls 1c of the housing 1, the upper and lower sides of the pair of vertical side plates 10 are flush with the top and bottom surfaces of the housing 1, and the pair of vertical side plates 10 extend a predetermined length rearward in the longitudinal direction Y from the rear sides of the pair of side walls 1c.

[0041] As shown in Figures 1 to 9, in the illustrated embodiment, the top wall 1a, bottom wall 1b, pair of side walls 1c, and rear wall 1d of the housing 1 define an internal cavity 101, and the terminal 2 has a fixing portion 2c fixed to the rear wall 1d and a mating portion 2b located in the internal cavity 101 of the housing 1, and the mating portion 2b of the terminal 2 is adapted to mate with a mating terminal (not shown) of a mating connector inserted into the internal cavity 101 of the housing 1.

[0042] As shown in FIGS. 1 to 9 , a connector assembly is also disclosed according to another exemplary embodiment of the present invention. The connector assembly includes a connector and a circuit board 4. A row of soldering pads 4a is formed on each of the front and rear sides of the circuit board, and is configured to be soldered to the respective soldering ends 2a of the two rows of terminals 2. The soldering ends 2a of the two rows of terminals 2 are soldered to the soldering pads 4a of the circuit board 4 after being pressed onto the soldering pads 4a of the circuit board 4 by two pressure plates 3, ensuring that the soldering ends 2a of the terminals 2 are securely soldered to the soldering pads 4a of the circuit board 4.

[0043] As shown in Figures 1 to 9, in the illustrated embodiment, in the process of inserting the circuit board 4 between the soldering ends 2a of the two rows of terminals 2 of the connector, the two pressing plates 3 are pressed by the circuit board 4 and move along the guide slots 11 from a pre-assembly position where the soldering ends 2a of the terminals 2 are not pressed, to a final assembly position where the soldering ends 2a of the terminals 2 are pressed against the circuit board 4.

[0044] As shown in FIGS. 1 to 9, in the illustrated embodiment, the connector assembly further includes a mating connector that mates with the connector.

[0045] It should be understood by those skilled in the art that the above embodiments are intended to be illustrative and not limiting. For example, those skilled in the art can make many modifications to the above embodiments without any contradiction in structure or principle, and can freely combine various features described in different embodiments with each other.

[0046] While several exemplary embodiments have been shown and described, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the following claims and their equivalents.

[0047] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plurality of such elements or steps, unless expressly stated otherwise. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic may include additional such elements that do not have that characteristic.

Claims

1. A connector, a housing (1) having a top wall (1a) and a bottom wall (1b) opposite to each other in a vertical direction (Z), a pair of side walls (1c) opposite to each other in a horizontal direction (X), and a front opening and a rear wall (1d) opposite to each other in a longitudinal direction (Y); an upper row of terminals (2) and a lower row of terminals (2) arranged in the housing (1), the upper row of terminals (2) and the lower row of terminals (2) extending rearward from the rear wall (1d) of the housing (1) and having soldering ends (2a) configured to be soldered to a circuit board (4); two pressure plates (3) including an upper pressure plate (3) arranged above the soldering ends (2a) of the upper row of terminals (2) and a lower pressure plate (3) arranged below the soldering ends (2a) of the lower row of terminals (2); Equipped with A pair of vertical side plates (10) opposite to each other in the lateral direction (X) are formed on the rear wall (1d) of the housing (1), and the vertical side plates (10) are slidably engaged with the two pressure plates (3), respectively; The two pressure plates (3) are adapted to slide by pressing the circuit board (4) inserted between the soldering ends (2a) of the two rows of terminals (2), and to move from a pre-assembly position in which the soldering ends (2a) of the terminals (2) are not pressed, to a final assembly position in which the soldering ends (2a) of the terminals (2) are pressed against the circuit board (4).

2. 2. The connector according to claim 1, wherein two guide slots (11) are formed in each of the vertical side plates (10), and the two guide slots (11) are slidably engaged with protrusions (31) on the end faces of the two pressure plates (3), respectively.

3. 3. The connector according to claim 2, wherein when the two pressure plates are in the pre-assembly position, the soldering ends of the two rows of terminals do not contact the soldering pads of the inserted circuit board or have a contact force with the soldering pads that is less than a predetermined value, thereby preventing the soldering ends of the terminals from damaging the soldering pads of the inserted circuit board.

4. 4. The connector according to claim 3, wherein when the two pressure plates (3) are in the final assembly position, by pressing the two pressure plates (3), the soldering ends (2 a) of the two rows of terminals (2) come into contact with the soldering pads (4 a) of the inserted circuit board (4) with the contact force greater than the predetermined value, thereby ensuring that the soldering ends (2 a) of the terminals (2) are securely soldered to the soldering pads (4 a) of the circuit board (4).

5. Each of the guide slots (11) has a first end and a second end opposite to each other in the longitudinal direction (Y), and the second end of the guide slot (11) is closer to the rear wall (1d) of the housing (1) than the first end; When the two pressure plates (3) are in the pre-assembly position, the protrusions (31) of the pressure plates (3) are located at the first ends of the guide slots (11); 5. The connector of claim 4, wherein when the two pressure plates (3) are pressed to the final assembly position by the inserted circuit board (4), the protrusions (31) of the pressure plates (3) move to the second ends of the guide slots (11).

6. The guide slot (11) has: a first guide surface (11a) located at the first end of the guide slot (11), extending in the longitudinal direction (Y) and configured to guide the protrusion (31) of the pressing plate (3) to move along the first guide surface; a second guide surface (11b) located at the second end of the guide slot (11), extending in the longitudinal direction (Y) and configured to guide the protrusion (31) of the pressing plate (3) to move along the second guide surface; a guide inclined surface (11c) located between the first end and the second end of the guide slot (11), the guide inclined surface (11c) being configured to guide the protrusion (31) of the pressing plate (3) so as to move along the guide inclined surface (11c); is formed, 6. The connector according to claim 5, wherein the guide inclined surface (11c) is connected between the first guide surface (11a) and the second guide surface (11b) to guide the protrusion (31) of the pressure plate (3) to move from the first guide surface (11a) to the second guide surface (11b).

7. 7. The connector of claim 6, wherein when the protrusions (31) of the pressure plate (3) move along the first guide surface (11a), the pressure plate (3) does not press the soldering ends (2a) of the terminals (2) so that the soldering ends (2a) do not contact the soldering pads (4a) of the inserted circuit board (4).

8. 7. The connector of claim 6, wherein when the protrusions (31) of the pressure plate (3) move along the second guide surface (11b), the pressure plate (3) presses the soldering ends (2a) of the terminals (2) so that the soldering ends (2a) of the terminals (2) contact the soldering pads (4a) of the inserted circuit board (4) with the contact force greater than the predetermined value.

9. 7. The connector according to claim 6, wherein when the protrusion (31) of the pressure plate (3) moves along the guide inclined surface (11c), the pressure plate (3) gradually moves from the pre-assembly position in which the soldering end (2a) of the terminal (2) is not pressed to the final assembly position in which the soldering end (2a) of the terminal (2) is pressed.

10. 3. The connector of claim 2, wherein a step portion (32) is formed at each end of the pressure plate (3), and the step portion (32) is configured to abut against the front end surface of the inserted circuit board (4), so that the pressure plate (3) moves along the guide slot (11) from the pre-assembly position to the final assembly position by the inserted circuit board (4) abutting and pushing against the pressure plate (3).

11. An insertion slot (12) extending in the longitudinal direction (Y) is formed in the vertical side plate (10), and the two guide slots (11) of the vertical side plate (10) are symmetrically arranged above and below the insertion slot (12); 3. The connector according to claim 2, wherein side edges on both sides of the circuit board (4) are adapted to be inserted into the insertion slots (12) of the pair of vertical side plates (10), respectively, to guide the circuit board (4) inserted between the soldering ends (2a) of the two rows of terminals (2) in the vertical direction (Y).

12. 2. The connector of claim 1, wherein outer sides of the pair of vertical side plates (10) are flush with outer surfaces of the pair of side walls (1c) of the housing (1), upper and lower sides of the pair of vertical side plates (10) are flush with the top and bottom surfaces of the housing (1), and the pair of vertical side plates (10) extend a predetermined length rearward in the longitudinal direction (Y) from the rear sides of the pair of side walls (1c).

13. 2. The connector according to claim 1, wherein the top wall (1a), the bottom wall (1b), the pair of side walls (1c), and the rear wall (1d) of the housing (1) define an internal cavity (101), and the terminal (2) has a fixing portion (2c) fixed to the rear wall (1d) and a mating portion (2b) located in the internal cavity (101) of the housing (1), and the mating portion (2b) of the terminal (2) is adapted to mate with a mating terminal of a mating connector inserted into the internal cavity (101) of the housing (1).

14. 1. A connector assembly comprising: A connector according to any one of claims 1 to 13; A circuit board (4) and Equipped with a row of soldering pads (4a) formed on each of the front and rear sides of the circuit board, configured to be soldered to the soldering ends (2a) of the two rows of terminals (2); The soldering ends (2 a) of the two rows of terminals (2) are soldered to the soldering pads (4 a) of the circuit board (4) after being pressed onto the soldering pads (4 a) of the circuit board (4) by the two pressure plates (3), thereby ensuring that the soldering ends (2 a) of the terminals (2) are securely soldered to the soldering pads (4 a) of the circuit board (4).

15. 15. The connector assembly of claim 14, wherein, in the process of inserting the circuit board (4) between the soldering ends (2 a) of the two rows of terminals (2) of the connector, the two pressure plates (3) are pushed by the circuit board (4) to move along the guide slots (11) from the pre-assembly position where the soldering ends (2 a) of the terminals (2) are not pressed to the final assembly position where the soldering ends (2 a) of the terminals (2) are pressed against the circuit board (4).

16. The connector assembly of claim 14, further comprising a mating connector that mates with the connector.

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