Guiding piece, board card assembly and connector assembly

Abstract

The invention discloses a guide piece, a board card assembly and a connector assembly. The guiding member is used for guiding the board card to be inserted into the connector. The guide piece is suitable for being sleeved on the board card, and the cross section of the front side part of the guide piece is a triangle or a trapezoid with a narrow front part and a wide rear part so as to guide the front side part of the board card to be inserted between the elastic contact parts of the two rows of terminals of the connector. According to the connector, the guide piece sleeved on the board card can ensure that the board card is smoothly inserted between the elastic contact parts of the two rows of terminals of the connector, and the problem that the terminals are damaged by the inserted board card can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to a guide, a board card assembly including the guide, and a connector assembly including the board card assembly. BACKGROUND

[0002] In the prior art, a connector mating with a board card generally includes a housing and two rows of terminals disposed in the housing. The board card is inserted between the elastic contact portions of the two rows of terminals to make electrical contact with the two rows of terminals of the connector. In the prior art, the elastic contact portion of the terminal includes a protruding portion making electrical contact with the board card and a guide end portion extending obliquely from the protruding portion. The guide end portions of the two rows of terminals are used to guide the board card to be inserted between the protruding portions of the two rows of terminals. Therefore, even if the position of the board card inserted has some deviation, the board card can be smoothly inserted between the protruding portions of the two rows of terminals under the guidance of the guide end portions of the two rows of terminals. It has been proved by experiments that the guide end portions of the terminals can reduce the signal integrity of the connector. In the prior art, sometimes the guide end portions of the terminals are removed in order to improve the signal integrity of the connector. However, the removal of the guide end portions of the terminals will affect the insertion of the board card into the connector, and the front side of the board card is easy to be abutted against the front end of the elastic contact portion of the terminal, which can cause the terminal of the connector to be damaged by the inserted board card. SUMMARY

[0003] The present application aims to solve at least one of the above problems and defects in the prior art.

[0004] According to one aspect of the present application, a guide is provided. The guide is used to guide a board card to be inserted into a connector. The guide is adapted to be fitted onto the board card, and the front side portion of the guide has a cross section in the shape of a triangle or trapezoid with the front narrow and the rear wide, so as to guide the front side portion of the board card to be inserted between the elastic contact portions of two rows of terminals of the connector.

[0005] According to one exemplary embodiment of the present application, the guide includes a plurality of guide ribs extending in a longitudinal direction and spaced apart in a transverse direction perpendicular to the longitudinal direction, and a guide strip connected to the front ends of the plurality of guide ribs and extending in the transverse direction. A recess is formed at the rear end portion of the guide rib to allow the board card to be inserted in the longitudinal direction, so that the guide can be fitted onto the front side portion of the board card. The guide rib is used to cooperate with a guide groove in the housing of the connector to guide the guide to be inserted into the housing of the connector. The guide strip has a cross section in the shape of a triangle or trapezoid with the front narrow and the rear wide, so as to guide the front side portion of the board card to be inserted between the elastic contact portions of the two rows of terminals of the connector.

[0006] According to another exemplary embodiment of the present application, the guide strip has an upper side and a lower side opposite to each other in a height direction perpendicular to the longitudinal direction and the transverse direction, and a guide slope is formed at the upper side and the lower side of the guide strip, respectively.

[0007] According to another exemplary embodiment of the present invention, the upper and lower guide bevels of the guide strip are symmetrically arranged on the upper and lower sides of the guide strip, such that the cross-section of the guide strip is an isosceles triangle or an isosceles trapezoid.

[0008] According to another exemplary embodiment of the invention, the guide strip has a front side and a rear side opposite each other in the longitudinal direction, the guide ramp extends obliquely between the front side and the rear side of the guide strip, and the included angle between the guide ramps on the upper and lower sides of the guide strip is greater than zero degrees and less than 45 degrees.

[0009] According to another exemplary embodiment of the invention, a recess is formed on the rear side of the guide strip to engage with the front edge of the card.

[0010] According to another exemplary embodiment of the present invention, a positioning tongue is formed in the groove of at least one of the plurality of guide ribs, the positioning tongue being used to engage with a positioning groove on the board.

[0011] According to another exemplary embodiment of the present invention, the guide further includes an outer sleeve connected to the rear end of the plurality of guide ribs. An inner cavity adapted to mate with the circuit board is formed in the outer sleeve, such that the outer sleeve can be fitted onto the main body of the circuit board.

[0012] According to another exemplary embodiment of the present invention, two inner sides of the inner cavity of the outer sleeve that are opposite each other in the height direction are used to abut against the upper and lower surfaces of the main body of the card, respectively, to position the card in the height direction.

[0013] According to another aspect of the present invention, a board assembly is provided. The board assembly includes: a board; and the aforementioned guide member, fitted onto the board. The guide strip of the guide member has a triangular or trapezoidal cross-section that is narrower at the front and wider at the back, for guiding the front side of the board into the space between the resilient contact portions of two rows of terminals within the housing of a connector.

[0014] According to an exemplary embodiment of the present invention, the front edge of the board is engaged into the recess on the rear side of the guide strip.

[0015] According to another exemplary embodiment of the present invention, a plurality of positioning grooves corresponding to the plurality of guide ribs are formed on the board, and at least one of the plurality of positioning grooves engages with a positioning tongue on the guide.

[0016] According to another exemplary embodiment of the present invention, a row of contact pads is formed on the front and back sides of the front side of the board, respectively. The row of contact pads on the front side of the front side of the board is used for electrical contact with the elastic contact portion of a row of terminals of the connector, and the row of contact pads on the back side of the front side of the board is used for electrical contact with the elastic contact portion of another row of terminals of the connector.

[0017] According to another aspect of the present invention, a connector assembly is provided. The connector assembly includes a connector and the aforementioned board assembly. The connector includes a housing and two rows of terminals disposed within the housing. The board assembly is inserted into the housing. The front portion of the board is inserted between the resilient contact portions of the two rows of terminals under the guidance of a guide strip of a guide member to make electrical contact with the two rows of terminals.

[0018] According to an exemplary embodiment of the present invention, the resilient contact portion of the terminal has a protrusion that makes electrical contact with the board, and the terminal does not have a guide end that extends obliquely from the protrusion for guiding the front side of the board into the protrusion between the two rows of terminals.

[0019] According to another exemplary embodiment of the present invention, a plurality of guide grooves are formed in the housing, the plurality of guide grooves extending longitudinally along the housing and spaced apart transversely in the housing; a plurality of guide ribs on the guide member respectively cooperate with the plurality of guide grooves in the housing to guide the guide member and the plate into the housing.

[0020] According to another exemplary embodiment of the present invention, the two rows of terminals are opposite each other in the height direction of the housing, the elastic contact portion of the upper row of terminals is electrically contacted with a row of contact pads on the front side of the front side of the board, and the elastic contact portion of the lower row of terminals is electrically contacted with a row of contact pads on the back side of the front side of the board.

[0021] In the foregoing exemplary embodiments of the present invention, the guide fitted on the board can ensure that the board is smoothly inserted between the elastic contact portions of the two rows of terminals of the connector, and can effectively avoid the problem of the connector terminals being damaged by the inserted board.

[0022] Other objects and advantages of the invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0023] Figure 1 An exploded view of a board assembly according to an exemplary embodiment of the present invention is shown;

[0024] Figure 2This diagram illustrates the assembly of a board assembly according to an exemplary embodiment of the present invention.

[0025] Figure 3 A horizontal cross-sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has not yet been assembled onto the board;

[0026] Figure 4 A horizontal cross-sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has been assembled onto the board;

[0027] Figure 5 A vertical sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has not yet been assembled onto the board;

[0028] Figure 6 A vertical sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has been assembled onto the board;

[0029] Figure 7 Another vertical sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has not yet been assembled onto the board;

[0030] Figure 8 Another vertical sectional view of a board assembly according to an exemplary embodiment of the present invention is shown, wherein the guide has been assembled onto the board;

[0031] Figure 9 An exploded schematic diagram of a connector assembly according to an exemplary embodiment of the present invention is shown;

[0032] Figure 10 This diagram illustrates the assembly of a connector assembly according to an exemplary embodiment of the present invention.

[0033] Figure 11 A vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly has not yet been inserted into the connector;

[0034] Figure 12 A vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly has been inserted into the connector;

[0035] Figure 13 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly has not yet been inserted into the connector;

[0036] Figure 14Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly has been inserted into the connector;

[0037] Figure 15 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the terminals of the connector are shown and the board assembly has not yet been inserted into the connector;

[0038] Figure 16 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the terminals of the connector are shown and the board assembly has been inserted into the connector;

[0039] Figure 17 This diagram shows a board assembly and two rows of terminals of a connector mating according to an exemplary embodiment of the present invention, wherein the board is not yet inserted between the two rows of terminals;

[0040] Figure 18 This diagram illustrates the mating of a board assembly with two rows of terminals of a connector according to an exemplary embodiment of the present invention, wherein the board has been inserted between the two rows of terminals;

[0041] Figure 19 This diagram shows the mating of two rows of terminals on a prior art board and connector, with the board not yet inserted between the two rows of terminals.

[0042] Figure 20 This diagram shows the mating of two rows of terminals of a prior art board and connector, with the board inserted between the two rows of terminals. Detailed Implementation

[0043] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this 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 thereof.

[0044] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0045] According to a general technical concept of the present invention, a guide is provided. The guide is used to guide a board into a connector. The guide is adapted to be fitted onto the board, and the cross-section of the front portion of the guide is triangular or trapezoidal, narrower at the front and wider at the back, to guide the front portion of the board into the resilient contact portions of two rows of terminals of the connector.

[0046] According to another general technical concept of the present invention, a guide is provided. The guide includes: a plurality of guide ribs extending longitudinally and spaced apart in a transverse direction perpendicular to the longitudinal direction; and a guide strip connected to the front ends of the plurality of guide ribs and extending in the transverse direction. A groove is formed at the rear end of each guide rib to allow insertion of a circuit board along the longitudinal direction, such that the guide can be fitted onto the front side of the circuit board. The guide ribs are used to mate with guide slots within the housing of a connector to guide the guide into the housing of the connector. The guide strip has a triangular or trapezoidal cross-section, narrower at the front and wider at the rear, to guide the front side of the circuit board between the resilient contact portions of the two rows of terminals of the connector.

[0047] According to another general technical concept of the present invention, a board assembly is provided. The board assembly includes: a board; and the aforementioned guide member, which is fitted onto the board. The guide strip of the guide member has a triangular or trapezoidal cross-section that is narrower at the front and wider at the back, for guiding the front side of the board into the space between the elastic contact portions of two rows of terminals within the housing of a connector.

[0048] According to another general technical concept of the present invention, a connector assembly is provided. The connector assembly includes a connector and the aforementioned board assembly. The connector includes a housing and two rows of terminals disposed within the housing. The board assembly is inserted into the housing. The front portion of the board is inserted between the resilient contact portions of the two rows of terminals under the guidance of the guide strip of the guide member, to make electrical contact with the two rows of terminals.

[0049] Figure 19 This diagram shows the mating of the board 2 and the two rows of terminals 32 of the connector in the prior art, wherein the board 2 has not yet been inserted between the two rows of terminals 32; Figure 20 This diagram shows the mating of a prior art board 2 with two rows of terminals 32 of a connector, wherein the board 2 has been inserted between the two rows of terminals 32.

[0050] like Figure 19 and Figure 20As shown, in the prior art, the resilient contact portion 320 of terminal 32 includes a protrusion 32a that makes electrical contact with board 2 and a guide end portion 32b extending obliquely from the protrusion 32a. The guide end portion 32b of the two rows of terminals 32 is used to guide board 2 to be inserted between the protrusions 32a of the two rows of terminals 32. Therefore, even if there is some deviation in the insertion position of board 2, it can be smoothly inserted between the protrusions 32a of the two rows of terminals 32 under the guidance of the guide end portion 32b of the two rows of terminals 32. However, experiments have shown that the guide end portion 32b of terminal 32 reduces the signal integrity of the connector. In the prior art, sometimes the guide end portion 32b of terminal 32 is removed in order to improve the signal integrity of the connector. However, removing the guide end portion 32b of terminal 32 will affect the insertion of board 2 into the connector, and the front side of board 2 can easily press against the front end of the resilient contact portion 320 of terminal 32, which will cause the connector terminal 32 to be damaged by the inserted board 2.

[0051] Figure 1 An exploded view of a board assembly 100 according to an exemplary embodiment of the present invention is shown; Figure 2 This diagram shows an assembly schematic of a board assembly 100 according to an exemplary embodiment of the present invention; Figure 3 This shows a horizontal cross-sectional view of a board assembly 100 according to an exemplary embodiment of the present invention, wherein the guide 1 has not yet been assembled onto the board 2; Figure 4 A horizontal cross-sectional view of a board assembly 100 according to an exemplary embodiment of the present invention is shown, wherein the guide 1 has been assembled onto the board 2; Figure 5 A vertical sectional view of a board assembly 100 according to an exemplary embodiment of the present invention is shown, wherein the guide 1 has not yet been assembled onto the board 2; Figure 6 A vertical sectional view of a board assembly 100 according to an exemplary embodiment of the present invention is shown, wherein the guide 1 has been assembled onto the board 2; Figure 7 Another vertical sectional view of a board assembly 100 according to an exemplary embodiment of the present invention is shown, wherein the guide 1 has not yet been assembled onto the board 2; Figure 8 Another vertical sectional view of a board assembly 100 according to an exemplary embodiment of the present invention is shown, wherein the guide 1 has been assembled onto the board 2; Figure 9 An exploded schematic diagram of a connector assembly according to an exemplary embodiment of the present invention is shown; Figure 10 This diagram illustrates the assembly of a connector assembly according to an exemplary embodiment of the present invention. Figure 11 A vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly 100 has not yet been inserted into the connector 3; Figure 12A vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly 100 has been inserted into the connector 3; Figure 13 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly 100 has not yet been inserted into the connector 3; Figure 14 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, wherein the board assembly 100 has been inserted into the connector 3; Figure 15 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, in which terminals 32 of connector 3 are shown and board assembly 100 is not yet inserted into connector 3; Figure 16 Another vertical sectional view of a connector assembly according to an exemplary embodiment of the present invention is shown, in which terminals 32 of connector 3 are shown and board assembly 100 has been inserted into connector 3; Figure 17 This diagram shows a board assembly 100 and two rows of terminals 32 of a connector 3 mating according to an exemplary embodiment of the present invention, wherein the board 2 has not yet been inserted between the two rows of terminals 32; Figure 18 This diagram shows a board assembly 100 and two rows of terminals 32 of a connector 3 mating, according to an exemplary embodiment of the present invention, wherein the board 2 has been inserted between the two rows of terminals 32.

[0052] like Figures 1 to 18 As shown, in an exemplary embodiment of the present invention, a guide 1 is disclosed. The guide 1 includes a plurality of guide ribs 11 and a guide strip 12. The plurality of guide ribs 11 extend along the longitudinal direction Y and are spaced apart in the transverse direction X perpendicular to the longitudinal direction Y. The guide strip 12 is connected to the front end of the plurality of guide ribs 11 and extends along the transverse direction X. A groove 11a is formed at the rear end of the guide rib 11 to allow the board 2 to be inserted along the longitudinal direction Y, so that the guide 1 can be fitted onto the front side of the board 2. The guide ribs 11 are used to mate with guide grooves 31 within the housing 30 of the connector 3 to guide the guide 1 into the housing 30 of the connector 3. The cross-section of the guide strip 12 is triangular or trapezoidal, narrower at the front and wider at the back, to guide the front side of the board 2 into the elastic contact portions 320 of the two rows of terminals 32 of the connector 3.

[0053] like Figures 1 to 18 As shown in the illustrated embodiment, the guide strip 12 has an upper side and a lower side opposite each other in the height direction Z perpendicular to the longitudinal direction Y and the transverse direction X, and guide slopes 12b are formed on the upper side and the lower side of the guide strip 12, respectively.

[0054] like Figures 1 to 18As shown in the illustrated embodiment, the guide slopes 12b on the upper and lower sides of the guide strip 12 are symmetrically arranged on the upper and lower sides of the guide strip 12, so that the cross-section of the guide strip 12 is an isosceles triangle or an isosceles trapezoid.

[0055] like Figures 1 to 18 As shown in the illustrated embodiment, the guide strip 12 has a front side and a rear side opposite each other in the longitudinal direction Y. The guide ramp 12b extends obliquely between the front side and the rear side of the guide strip 12. The included angle between the upper and lower guide ramps 12b of the guide strip 12 is greater than zero degrees and less than 45 degrees. For example, the included angle between the upper and lower guide ramps 12b of the guide strip 12 can be equal to 20 degrees or 30 degrees.

[0056] like Figures 1 to 18 As shown, in the illustrated embodiment, a recess 12a is formed on the rear side of the guide strip 12, which is suitable for engaging with the front edge 2a of the card 2.

[0057] like Figures 1 to 18 As shown, in the illustrated embodiment, a positioning tongue 11b is formed in the groove 11a of at least one of the plurality of guide ribs 11, the positioning tongue 11b being used to engage with the positioning groove 2b on the board 2.

[0058] like Figures 1 to 18 As shown in the illustrated embodiment, the guide 1 further includes an outer sleeve 13, which is connected to the rear ends of a plurality of guide ribs 11. An inner cavity 130 is formed in the outer sleeve 13 to mate with the board 2, so that the outer sleeve 13 can be fitted onto the main body of the board 2.

[0059] However, the present invention is not limited to the illustrated embodiment. For example, the outer casing 13 of the guide 1 is not necessary and can be removed.

[0060] like Figures 1 to 18 As shown in the illustrated embodiment, the two inner sides of the inner cavity 130 of the outer casing 13, which are opposite each other in the height direction Z, are used to abut against the upper and lower surfaces of the main body of the card 2, respectively, so as to position the card 2 in the height direction Z.

[0061] like Figures 1 to 18 As shown, in another exemplary embodiment of the present invention, a board assembly 100 is also disclosed. The board assembly 100 includes a board 2 and a guide 1. The guide 1 is fitted onto the board 2. The guide strip 12 of the guide 1 has a triangular or trapezoidal cross-section that is narrower at the front and wider at the back, for guiding the front side of the board 2 into the space between the elastic contact portions 320 of two rows of terminals 32 inside the housing 30 of the connector 3.

[0062] like Figures 1 to 18As shown, in the illustrated embodiment, the front edge 2a of the board 2 is engaged into the recess 12a on the rear side of the guide strip 12.

[0063] like Figures 1 to 18 As shown in the illustrated embodiment, a plurality of positioning grooves 2b are formed on the board 2, each corresponding to a plurality of guide ribs 11, and at least one of the plurality of positioning grooves 2b engages with a positioning tongue 11b on the guide member 1.

[0064] like Figures 1 to 18 As shown in the illustrated embodiment, a row of contact pads (not shown) is formed on the front and back sides of the front side of the board 2. The row of contact pads on the front side of the front side of the board 2 is used to make electrical contact with the elastic contact portion 320 of one row of terminals 32 of the connector 3, and the row of contact pads on the back side of the front side of the board 2 is used to make electrical contact with the elastic contact portion 320 of the other row of terminals 32 of the connector 3.

[0065] like Figures 1 to 18 As shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes a connector 3 and a board assembly 100. The connector 3 includes a housing 30 and two rows of terminals 32. The two rows of terminals 32 are disposed within the housing 30. The board assembly 100 is inserted into the housing 30. The front portion of the board 2 is inserted between the resilient contact portions 320 of the two rows of terminals 32 under the guidance of the guide strip 12 of the guide member 1, to make electrical contact with the two rows of terminals 32.

[0066] like Figures 1 to 18 As shown, in the illustrated embodiment, the elastic contact portion 320 of the terminal 32 has a protrusion 32a that makes electrical contact with the board 2, and the terminal 32 does not have a guide end portion 32b that extends obliquely from the protrusion 32a and is used to guide the front side of the board 2 to be inserted between the protrusions 32a of the two rows of terminals 32.

[0067] like Figures 1 to 18 As shown in the illustrated embodiment, a plurality of guide grooves 31 are formed in the housing 30. The plurality of guide grooves 31 extend along the longitudinal direction Y of the housing 30 and are spaced apart in the transverse direction X of the housing 30. A plurality of guide ribs 11 on the guide member 1 respectively cooperate with the plurality of guide grooves 31 in the housing 30 to guide the guide member 1 and the plate 2 into the housing 30.

[0068] like Figures 1 to 18 As shown in the illustrated embodiment, the two rows of terminals 32 are opposite each other in the height direction Z of the housing 30. The elastic contact portion 320 of the upper row of terminals 32 makes electrical contact with a row of contact pads on the front side of the front part of the board 2, and the elastic contact portion 320 of the lower row of terminals 32 makes electrical contact with a row of contact pads on the back side of the front part of the board 2.

[0069] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this invention.

[0070] Although the invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the invention and should not be construed as limiting the invention.

[0071] While some embodiments of the general concept of the invention have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of the invention, the scope of which is defined by the claims and their equivalents.

[0072] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of the invention.

Claims

1. A guide for guiding a board (2) into a connector (3), characterized in that: The guide (1) is adapted to be fitted onto the board (2) and the cross-section of the front side of the guide (1) is a triangle or trapezoid with a narrow front and a wide back, so as to guide the front side of the board (2) to be inserted between the elastic contact portions (320) of the two rows of terminals (32) of the connector (3).

2. The guide according to claim 1, characterized in that, The guide (1) includes: Multiple guide ribs (11) extend longitudinally (Y) and are spaced apart in a transverse direction (X) perpendicular to the longitudinal direction (Y); and A guide strip (12) is connected to the front end of the plurality of guide ribs (11) and extends along the transverse direction (X). A groove (11a) is formed at the rear end of the guide rib (11) to allow the plate (2) to be inserted along the longitudinal direction (Y), so that the guide (1) can be fitted onto the front side of the plate (2). The guide rib (11) is used to mate with the guide groove (31) in the housing (30) of the connector (3) to guide the guide (1) into the housing (30) of the connector (3). The guide bar (12) has a triangular or trapezoidal cross-section that is narrower at the front and wider at the back, so as to guide the front part of the board (2) to be inserted between the elastic contact portions (320) of the two rows of terminals (32) of the connector (3).

3. The guide according to claim 2, characterized in that: The guide strip (12) has an upper side and a lower side opposite each other in the height direction (Z) perpendicular to the longitudinal direction (Y) and the transverse direction (X), and guide slopes (12b) are formed on the upper side and the lower side of the guide strip (12), respectively.

4. The guide according to claim 3, characterized in that: The guide slopes (12b) on the upper and lower sides of the guide strip (12) are symmetrically arranged on the upper and lower sides of the guide strip (12), so that the cross-section of the guide strip (12) is an isosceles triangle or an isosceles trapezoid.

5. The guide according to claim 3, characterized in that: The guide strip (12) has a front side and a rear side opposite each other in the longitudinal direction (Y), and the guide ramp (12b) extends obliquely between the front side and the rear side of the guide strip (12), with the included angle between the upper and lower guide ramps (12b) of the guide strip (12) being greater than zero degrees and less than 45 degrees.

6. The guide according to claim 5, characterized in that: A recess (12a) is formed on the rear side of the guide strip (12) to engage with the front side (2a) of the plate (2).

7. The guide according to claim 2, characterized in that: A positioning tongue (11b) is formed in a groove (11a) of at least one of the plurality of guide ribs (11), the positioning tongue (11b) being used to engage with a positioning groove (2b) on the board (2).

8. The guide according to any one of claims 2-7, characterized in that, Also includes: The outer casing (13) is connected to the rear end of the plurality of guide ribs (11). An inner cavity (130) is formed in the outer casing (13) to mate with the board (2), so that the outer casing (13) can be fitted onto the main body of the board (2).

9. The guide according to claim 8, characterized in that: The two inner sides of the inner cavity (130) of the outer shell (13) that are opposite each other in the height direction (Z) are used to abut against the upper and lower surfaces of the main body of the plate (2) respectively, so as to position the plate (2) in the height direction (Z).

10. A board assembly, characterized in that, include: Board (2); and The guide (1) according to any one of claims 1-9 is fitted onto the board (2). The guide strip (12) of the guide member (1) has a cross-section that is narrow at the front and wide at the back, which is a triangle or trapezoid and is used to guide the front side of the board (2) to be inserted between the elastic contact portions (320) of the two rows of terminals (32) in the housing (30) of the connector (3).

11. The board assembly according to claim 10, characterized in that: The front part (2a) of the plate (2) is engaged in the recess (12a) on the rear side of the guide strip (12).

12. The board assembly according to claim 10, characterized in that: A plurality of positioning grooves (2b) corresponding to the plurality of guide ribs (11) are formed on the plate (2), and at least one of the plurality of positioning grooves (2b) engages with a positioning tongue (11b) on the guide (1).

13. The connector assembly according to claim 10, characterized in that: A row of contact pads is formed on the front and back sides of the front side of the board (2). The row of contact pads on the front side of the front side of the board (2) is used to make electrical contact with the elastic contact portion (320) of one row of terminals (32) of the connector (3). The row of contact pads on the back side of the front side of the board (2) is used to make electrical contact with the elastic contact portion (320) of the other row of terminals (32) of the connector (3).

14. A connector assembly, characterized in that, include: Connector (3), comprising: Shell (30); and Two rows of terminals (32) are disposed in the housing (30); and The board assembly (100) according to any one of claims 10-13 is inserted into the housing (30). The front part of the board (2) is inserted between the elastic contact portions (320) of the two rows of terminals (32) under the guidance of the guide strip (12) of the guide (1) to make electrical contact with the two rows of terminals (32).

15. The connector assembly according to claim 14, characterized in that: The elastic contact portion (320) of the terminal (32) has a protrusion (32a) that makes electrical contact with the board (2), and the terminal (32) does not have a guide end (32b) that extends obliquely from the protrusion (32a) for guiding the front side of the board (2) to be inserted between the protrusions (32a) of the two rows of terminals (32).

16. The connector assembly according to claim 14, characterized in that: A plurality of guide grooves (31) are formed in the housing (30), the plurality of guide grooves (31) extending along the longitudinal (Y) direction of the housing (30) and spaced apart along the transverse (X) direction of the housing (30); The multiple guide ribs (11) on the guide (1) respectively cooperate with the multiple guide grooves (31) in the housing (30) to guide the guide (1) and the plate (2) to be inserted into the housing (30).

17. The connector assembly according to claim 14, characterized in that: The two rows of terminals (32) are opposite each other in the height direction (Z) of the housing (30). The elastic contact portion (320) of the upper row of terminals (32) is in electrical contact with a row of contact pads on the front side of the front part of the board (2). The elastic contact portion (320) of the lower row of terminals (32) is in electrical contact with a row of contact pads on the back side of the front part of the board (2).

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