Connection and electrical connection arrangement

Abstract

The present invention discloses a connector and an electrical connection arrangement. The connector comprises: a first rigid side plate (10); a second rigid side plate (10') opposite the first rigid side plate (10); a rigid top plate (11) arranged between the first and the second rigid side plates (10, 10'); a first elastic connecting arm (12) connected between the rigid top plate (11) and the first rigid side plate (10); a second elastic connecting arm (12') connected between the rigid top plate (11) and the second rigid side plate (10'); and a pair of elastic clamping arms (13) connected to the rigid top plate (11) to clamp an inserted mating connector (2) in order to make electrical contact with the mating connector (2).In the present invention, the first and second elastic connecting arms of the connector can absorb the installation position error of the connector, which allows the connector to float over a large area, reduces the difficulties of plugging in between the connector and the mating connector and does not increase costs.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims priority to Chinese Patent Application No. CN202322610967.9, filed with the State Intellectual Property Office of China on September 25, 2023, the entire disclosure of which is incorporated herein by reference. BACKGROUND OF THE INVENTIONField of the invention

[0002] The present invention relates to a terminal and an electrical connection arrangement comprising the terminal. Description of the state of the art

[0003] In the prior art, it is sometimes necessary to install multiple terminals on a circuit board at the same time, and multiple mating connectors are designed so that they can each be inserted into multiple terminals to make electrical contact with multiple terminals. In order to insert multiple mating connectors into multiple terminals at the same time, the installation position error of each terminal should be small or zero, otherwise multiple mating connectors cannot be inserted into multiple terminals at the same time. However, in practice, errors in the installation position of the terminals always occur, so it is difficult to achieve high accuracy. This leads to the difficulty that multiple mating connectors can be inserted into a large number of terminals at the same time, which causes great difficulty in connecting the product.In order to reduce the difficulty of plugging in, it is therefore necessary, according to the state of the art, to improve the installation accuracy of the connectors, which, however, leads to a sharp increase in costs. SUMMARY OF THE INVENTION

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above-mentioned disadvantages.

[0005] According to one aspect of the present invention, a terminal is provided. The terminal comprises: a first rigid side plate; a second rigid side plate opposite the first rigid side plate; a rigid top plate disposed between the first and second rigid side plates; a first resilient connecting arm connected between the rigid top plate and the first rigid side plate; a second resilient connecting arm connected between the rigid top plate and the second rigid side plate; and a pair of resilient clamping arms connected to the rigid top plate for clamping an inserted mating connector to make electrical contact with the mating connector.

[0006] According to an exemplary embodiment of the present invention, the rigid top plate extends along a first direction and a second direction that are perpendicular to each other, and the first rigid side plate and the second rigid side plate are opposite each other in the first direction and extend along the second direction and a third direction that is perpendicular to the first and second directions.

[0007] According to another exemplary embodiment of the present invention, the first rigid side plate and the second rigid side plate each have opposite upper and lower side edges in the third direction, and the rigid top plate has opposite first and second side edges in the first direction; the first elastic connecting arm is connected between the first side edge of the rigid top plate and the upper side edge of the first rigid side plate, and the second elastic connecting arm is connected between the second side edge of the rigid top plate and the upper side edge of the second rigid side plate.

[0008] According to another exemplary embodiment of the present invention, a connecting pin is formed on the lower side edge of the first rigid side plate and the second rigid side plate, wherein the connecting pin can be inserted into a connecting hole formed in a circuit board to fix and electrically connect the first rigid side plate and the second rigid side plate to the circuit board.

[0009] According to another exemplary embodiment of the present invention, the first elastic connecting arm and the second elastic connecting arm are arranged symmetrically on both sides of the rigid top plate; the first rigid side plate and the second rigid side plate are arranged symmetrically on both sides of the rigid top plate.

[0010] According to another exemplary embodiment of the present invention, the pair of elastic clamping arms are each connected to the first and second side edges of the rigid top plate and arranged symmetrically below the rigid top plate; an opening is formed in the rigid top plate through which the mating connector can be inserted between the pair of elastic clamping arms.

[0011] According to another exemplary embodiment of the present invention, the elastic clamping arm has an arcuate contact portion disposed at its end, and the arcuate contact portions of the pair of elastic clamping arms are located below the opening of the rigid top plate for clamping and electrically contacting the inserted mating connector.

[0012] According to another exemplary embodiment of the present invention, the terminal comprises a pair of first elastic connecting arms that oppose each other in the second direction and are spaced apart by a predetermined distance; the terminal comprises a pair of second elastic connecting arms that oppose each other in the second direction and are spaced apart by a predetermined distance; one of the pair of elastic clamping arms is arranged between the pair of first elastic connecting arms, and the other of the pair of elastic clamping arms is arranged between the pair of second elastic connecting arms.

[0013] According to another exemplary embodiment of the present invention, the first elastic connecting arm comprises: a first curved arm, one end of which is connected to the upper side edge of the first rigid side plate; a first straight arm, one end of which is connected to the other end of the first curved arm; a second curved arm, one end of which is connected to the other end of the first straight arm; and a second straight arm, one end of which is connected to the other end of the second curved arm and the other end of which is connected to the first side edge of the rigid top plate.

[0014] According to another exemplary embodiment of the present invention, the first curved arm is U-shaped with its opening directed downward, the second curved arm is U-shaped with its opening directed upward, and the first straight arm and the second straight arm extend in a straight line along the third direction and are parallel to each other.

[0015] According to another exemplary embodiment of the present invention, the second elastic connecting arm comprises: a third curved arm, one end of which is connected to the upper side edge of the second rigid side plate; a third straight arm, one end of which is connected to the other end of the third curved arm; a fourth curved arm, one end of which is connected to the other end of the third straight arm; and a fourth straight arm, one end of which is connected to the other end of the fourth curved arm and the other end of which is connected to the second side edge of the rigid top plate.

[0016] According to another exemplary embodiment of the present invention, the third curved arm is U-shaped with its opening directed downward, the fourth curved arm is U-shaped with its opening directed upward, and the third straight arm and the fourth straight arm extend in a straight line along the third direction and are parallel to each other.

[0017] According to another exemplary embodiment of the present invention, the pair of elastic clamping arms are arranged symmetrically on both sides of a symmetry plane perpendicular to the first direction; when the mating connector is inserted centrally along the symmetry plane between the pair of elastic clamping arms, the first elastic connecting arm and the second elastic connecting arm do not undergo elastic deformation, so that the rigid top plate does not move.

[0018] According to another exemplary embodiment of the present invention, when the mating connector is biased toward one side of the symmetry plane and inserted between the pair of elastic clamping arms in a direction parallel to the symmetry plane, the first elastic connecting arm and the second elastic connecting arm are elastically deformed, causing the rigid top plate to translate but still remain in an orientation perpendicular to the third direction.

[0019] According to another exemplary embodiment of the present invention, when the mating connector is inserted between the pair of elastic clamping arms in a direction inclined to the plane of symmetry, the first elastic connecting arm and the second elastic connecting arm are elastically deformed, so that the rigid top plate shifts and tilts.

[0020] According to another aspect of the present invention, an electrical connection assembly is provided. The electrical connection assembly comprises: a circuit board; and the above-mentioned terminal installed on the circuit board. The first rigid side plate and the second rigid side plate of the terminal are fixedly and electrically connected to the circuit board, and the rigid top plate of the terminal is suspended from the circuit board by the first elastic connecting arm and the second elastic connecting arm.

[0021] According to an exemplary embodiment of the present invention, a hole is formed in the circuit board, and a connecting pin is formed on the lower side edge of each of the first rigid side plate and the second rigid side plate, the connecting pin being inserted into the hole on the circuit board to fix and electrically connect the first rigid side plate and the second rigid side plate to the circuit board.

[0022] According to another exemplary embodiment of the present invention, a slot corresponding to the opening on the rigid top plate is formed in the circuit board to allow the mating connector inserted between the pair of elastic clamping arms to pass through the slot through the circuit board.

[0023] According to another exemplary embodiment of the present invention, the electrical connection assembly further comprises a mating connector inserted between the pair of resilient clamping arms of the terminal to establish an electrical connection with the terminal.

[0024] According to another exemplary embodiment of the present invention, the electrical connection assembly comprises a plurality of terminals arranged in an array on the printed circuit board; the electrical connection assembly comprises a plurality of mating connectors adapted to be simultaneously inserted into the respective multiple terminals.

[0025] In the aforementioned exemplary embodiments of the present invention, the first and second elastic connecting arms of the terminal can absorb the installation position error of the terminal, allowing the terminal to float over a wide range, reducing the difficulty in mating between the terminal and the mating connector, and not increasing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other features of the present invention will become more apparent from the detailed description of exemplary embodiments with reference to the accompanying drawings, in which: Fig. 1 shows an illustrative perspective view of an electrical connection assembly according to an exemplary embodiment of the present invention; Fig. 2 shows a vertical sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention; Fig. 3 shows an illustrative perspective view of a terminal according to an exemplary embodiment of the present invention; Fig. 4 shows a vertical sectional view of a terminal according to an exemplary embodiment of the present invention; Fig. 5 shows a planar portion of an electrical connection assembly according to an exemplary embodiment of the present invention, wherein the mating connector is inserted centrally between the pair of elastic clamping arms along a plane of symmetry; and Fig. 6 shows a planar sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention, wherein the mating connector is biased toward one side of the plane of symmetry and inserted between the pair of elastic clamping arms parallel to the plane of symmetry. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION

[0027] Exemplary embodiments of the present disclosure are described in detail below with reference to the accompanying drawings, wherein like reference numerals refer to like elements. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiment 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.

[0028] In the following detailed description, for explanatory purposes, numerous detailed details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, it will be apparent that one or more embodiments may be practiced without these detailed details. In other instances, well-known structures and devices are shown schematically to simplify the drawings.

[0029] According to a general concept of the present invention, a terminal is provided. The terminal comprises: a first rigid side plate; a second rigid side plate opposite the first rigid side plate; a rigid top plate disposed between the first and second rigid side plates; a first resilient connecting arm connected between the rigid top plate and the first rigid side plate; a second resilient connecting arm connected between the rigid top plate and the second rigid side plate; and a pair of resilient clamping arms connected to the rigid top plate for clamping an inserted mating terminal plug into electrical contact with the mating plug.

[0030] According to another general concept of the present invention, an electrical connection assembly is provided. The electrical connection assembly comprises: a circuit board; and the above-mentioned terminal installed on the circuit board. The first rigid side plate and the second rigid side plate of the terminal are fixedly and electrically connected to the circuit board, and the rigid top plate of the terminal is suspended from the circuit board by the first elastic connecting arm and the second elastic connecting arm.

[0031] Fig. 1 shows an illustrative perspective view of an electrical connection assembly according to an exemplary embodiment of the present invention; Fig. 2 shows a vertical sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention; Fig. 3 shows an illustrative perspective view of the terminal 1 according to an exemplary embodiment of the present invention; Fig. 4 shows a vertical sectional view of the terminal 1 according to an exemplary embodiment of the present invention.

[0032] As in the Fig. 1 to 4, in an exemplary embodiment of the present invention, a terminal 1 is disclosed. The terminal 1 comprises: a first rigid side plate 10, a second rigid side plate 10', a rigid top plate 11, a first elastic connecting arm 12, a second elastic connecting arm 12', and a pair of elastic clamping arms 13. The second rigid side plate 10' faces the first rigid side plate 10. The rigid top plate 11 is located between the first and second rigid side plates 10 and 10'. The first elastic connecting arm 12 is connected between the rigid top plate 11 and the first rigid side plate 10. The second elastic connecting arm 12' is mounted between the rigid top plate 11 and the second rigid side plate 10'.The pair of elastic clamping arms 13 are connected to the rigid top plate 11 to clamp an inserted mating connector 2 to establish electrical contact with the mating connector 2.

[0033] As in the Fig. 1 to 4, in the illustrated embodiments, the rigid top plate 11 extends along a first direction (a first horizontal direction in the figure) X and a second direction (a second horizontal direction in the figure) Y perpendicular to the first direction X. The first rigid side plate 10 and the second rigid side plate 10' are opposite in the first direction X and extend along the second direction Y and a third direction (a vertical direction in the figure) Z perpendicular to the first and second directions X and Y.

[0034] As in the Fig. 1 to 4, in the illustrated embodiments, the first rigid side plate 10 and the second rigid side plate 10' each have opposite upper and lower side edges in the third direction Z, and the rigid top plate 11 has opposite first and second side edges in the first direction X. The first elastic connecting arm 12 is connected between the first side edge of the rigid top plate 11 and the upper side edge of the first rigid side plate 10, and the second elastic connecting arm 12' is connected between the second side edge of the rigid top plate 11 and the upper side edge of the second rigid side plate 10'.

[0035] As in the Fig. As illustrated in Figures 1 to 4, in the illustrated embodiments, a connecting pin 10a is formed on the lower side edge of each of the first rigid side plate 10 and the second rigid side plate 10'. The connecting pin 10a can be inserted into a hole 302 formed in a circuit board 3 to fix and electrically connect the first rigid side plate 10 and the second rigid side plate 10' to the circuit board 3.

[0036] As in the Fig. As shown in Figures 1 to 4, in the illustrated embodiments, the first elastic connecting arm 12 and the second elastic connecting arm 12' are arranged symmetrically on both sides of the rigid top plate 11. The first rigid side plate 10 and the second rigid side plate 10' are arranged symmetrically on both sides of the rigid top plate 11.

[0037] As in the Fig. 1 to 4, in the illustrated embodiments, the pair of elastic clamping arms 13 are each connected to the first and second side edges of the rigid top plate 11 and arranged symmetrically below the rigid top plate 11. An opening 101 is formed in the rigid top plate 11 so that the mating connector 2 can be inserted between the pair of elastic clamping arms 13 through the opening 101.

[0038] As in the Fig. 1 to 4, in the illustrated embodiments, the elastic clamping arm 13 has an arcuate contact portion 13a at its end, and the arcuate contact portions 13a of the pair of elastic clamping arms 13 are located below the opening 101 of the rigid cover plate 11 to clamp and electrically contact the inserted mating connector 2.

[0039] As in the Fig. 1 to 4, in the illustrated embodiments, the connector includes a pair of first elastic connecting arms 12 that oppose each other in the second direction Y and are spaced apart by a predetermined distance. The connector includes a pair of second elastic connecting arms 12' that oppose each other in the second direction Y and are spaced apart by a predetermined distance. One of the pair of elastic clamping arms 13 is located between the pair of first elastic connecting arms 12, and the other of the pair of elastic clamping arms 13 is located between the pair of second elastic connecting arms 12'.

[0040] As in the Fig. 1 to 4, in the illustrated embodiments, the first elastic connecting arm 12 comprises: a first curved arm 12a, a first straight arm 12c, a second curved arm 12b, and a second straight arm 12d. One end of the first curved arm 12a is connected to the upper side edge of the first rigid side plate 10. One end of the first straight arm 12c is connected to the other end of the first curved arm 12a. One end of the second curved arm 12b is connected to the other end of the first straight arm 12c. One end of the second straight arm 12d is connected to the other end of the second curved arm 12b, and the other end of the second straight arm 12d is connected to the first side edge of the rigid top plate 11.

[0041] As in the Fig. 1 to 4, in the illustrated embodiments, the first curved arm 12a is U-shaped with its opening directed downward, the second curved arm 12b is U-shaped with its opening directed upward, and the first straight arm 12c and the second straight arm 12d extend parallel to each other along the third direction Z.

[0042] As in the Fig. 1 to 4, in the illustrated embodiments, the second elastic connecting arm 12' comprises: a third curved arm 12a', a third straight arm 12c', a fourth curved arm 12b', and a fourth straight arm 12d'. One end of the third curved arm 12a' is connected to the upper side edge of the second rigid side plate 10'. One end of the third straight arm 12c' is connected to the other end of the third curved arm 12a'. One end of the fourth curved arm 12b' is connected to the other end of the third straight arm 12c'. One end of the fourth straight arm 12d' is connected to the other end of the fourth curved arm 12b', and the other end of the fourth straight arm 12d' is connected to the second side edge of the rigid top plate 11.

[0043] As in the Fig. 1 to 4, in the illustrated embodiments, the third curved arm 12a' is U-shaped with its opening directed downwards, the fourth curved arm 12b' is U-shaped with its opening directed upwards, and the third straight arm 12c' and the fourth straight arm 12d' extend parallel to each other along the third direction Z.

[0044] Fig. 5 shows a planar sectional view of an electrical connection arrangement according to an exemplary embodiment of the present invention, wherein the mating connector 2 is inserted centrally between the pair of elastic clamping arms 13 along the plane of symmetry P.

[0045] As in the Fig. 1 to 5, in the illustrated embodiment, the pair of elastic clamping arms 13 are arranged symmetrically on both sides of the symmetry plane P perpendicular to the first direction X. When the mating connector 2 is inserted between the pair of elastic clamping arms 13 along the symmetry plane P, the first elastic connecting arm 12 and the second elastic connecting arm 12' do not undergo elastic deformation, so that the rigid top plate 11 does not move.

[0046] Fig. 6 shows a planar sectional view of an electrical connection assembly according to an exemplary embodiment of the present invention, wherein the mating connector 2 is biased toward one side of the symmetry plane P and inserted between the pair of elastic clamping arms 13 in a direction parallel to the symmetry plane P.

[0047] As in the Fig. 1 to 6, in the illustrated embodiments, when the mating connector 2 is biased towards one side of the plane of symmetry P and is inserted between the pair of elastic clamping arms 13 in a direction parallel to the plane of symmetry P, the first elastic connecting arm 12 and the second elastic connecting arm 12' are elastically deformed, whereby the rigid top plate 11 translates but still remains in an orientation perpendicular to the third direction Z.

[0048] As in the Fig. 1 to 6, in the illustrated embodiments, when the mating connector 2 is inserted between the pair of elastic clamping arms 13 in a direction inclined to the plane of symmetry P, the first elastic connecting arm 12 and the second elastic connecting arm 12' are elastically deformed, whereby the rigid top plate 11 shifts and tilts.

[0049] As in the Fig. 1 to 6, in another exemplary embodiment of the present invention, an electrical connection assembly is also disclosed. The electrical connection assembly comprises a circuit board 3 and the aforementioned terminal 1. The terminal 1 is mounted on the circuit board 3. The first rigid side plate 10 and the second rigid side plate 10' of the terminal 1 are fixedly and electrically connected to the circuit board 3, and the rigid top plate 11 of the terminal 1 is suspended from the circuit board 3 by the first elastic connecting arm 12 and the second elastic connecting arm 12'.

[0050] As in the Fig. As illustrated in Figures 1 to 6, in the illustrated embodiments, a connection hole 302 is formed in the circuit board 3, and a connection pin 10a is formed on the lower side edge of each of the first rigid side plate 10 and the second rigid side plate 10'. The connection pin 10a is inserted into the connection hole 302 on the circuit board 3 to fix and electrically connect the first rigid side plate 10 and the second rigid side plate 10' to the circuit board 3.

[0051] As in the Fig. 1 to 6, in the illustrated embodiments, a slot 301 corresponding to the opening 101 on the rigid top plate 11 is formed in the printed circuit board 3 so that the mating connector 2 inserted between the pair of elastic clamping arms 13 can be passed through the slot 301 of the printed circuit board 3.

[0052] As in the Fig. 1 to 6, the electrical connection assembly in the illustrated embodiments further comprises a mating connector 2 which is inserted between the pair of elastic clamping arms 13 of the terminal 1 to be electrically connected to the terminal 1.

[0053] As in the Fig. As illustrated in Figures 1 to 6, the electrical connection arrangement in the illustrated embodiments comprises a plurality of terminals 1 arranged in a row on the printed circuit board 3. The electrical connection arrangement also comprises a plurality of mating connectors 2. Several mating connectors 2 are suitable for simultaneous insertion into a plurality of terminals 1.

[0054] It should be clear to those skilled in the art that the above embodiments are intended to be illustrative and not restrictive. For example, many modifications to the above embodiments can be made by those skilled in the art, and various features described in different embodiments can be freely combined without causing conflicts in configuration or principle.

[0055] Although several exemplary embodiments have been shown and described, it will be apparent to those skilled in the art that various changes or modifications may be made to these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents.

[0056] When an element is referred to herein in the singular and followed by the word "a" or "an," it is to be understood that the plurality of recited elements or stages is not excluded unless such exclusion is expressly stated. Furthermore, references to "one embodiment" of the present invention are not to be understood as excluding the existence of further embodiments that also have the recited features. Furthermore, embodiments that include or have an element or a plurality of elements that have a particular property may include additional elements that do not have that property, unless expressly stated otherwise. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN 202322610967.9

[0001]

Claims

[1] Connection, including: a first rigid side plate (10); a second rigid side plate (10') opposite the first rigid side plate (10); a second elastic connecting arm (12') connected between the rigid top plate (11) and the second rigid side plate (10'); and a pair of elastic clamping arms (13) connected to the rigid top plate (11) for clamping an inserted mating connector (2) to establish electrical contact with the mating connector (2). [2] Connection according to claim 1, wherein the rigid top plate (11) extends along a first direction (X) and a second direction (Y) perpendicular to each other, and the first rigid side plate (10) and the second rigid side plate (10') are opposite each other in the first direction (X) and extend along the second direction (Y) and a third direction (Z) perpendicular to the first and second directions (X, Y). [3] Connection according to claim 2, wherein the first rigid side plate (10) and the second rigid side plate (10') each have opposite upper and lower side edges in the third direction (Z), and the rigid top plate (11) has opposite first and second side edges in the first direction (X); wherein the first elastic connecting arm (12) is connected between the first side edge of the rigid top plate (11) and the upper side edge of the first rigid side plate (10), and the second elastic connecting arm (12') is connected between the second side edge of the rigid top plate (11) and the upper side edge of the second rigid side plate (10'). [4] Connection according to claim 3, wherein a connecting pin (10a) is formed on the lower side edge of each of the first rigid side plate (10) and the second rigid side plate (10'), the connecting pin (10a) being adapted to be inserted into a hole (302) formed in a circuit board (3) to fix and electrically connect the first rigid side plate (10) and the second rigid side plate (10') to the circuit board (3). [5] Connection according to claim 3, wherein the first elastic connecting arm (12) and the second elastic connecting arm (12') are arranged symmetrically on both sides of the rigid top plate (11); wherein the first rigid side plate (10) and the second rigid side plate (10') are arranged symmetrically on both sides of the rigid top plate (11); wherein the pair of elastic clamping arms (13) are each connected to the first and second side edges of the rigid top plate (11) and arranged symmetrically below the rigid top plate (11); wherein an opening (101) is formed in the rigid top plate (11) to enable the mating connector (2) to be inserted between the pair of elastic clamping arms (13) through the opening (101). [6] Connection according to claim 5, wherein the elastic clamping arm (13) has an arcuate contact portion (13a) arranged at its end, and the arcuate contact portions (13a) of the pair of elastic clamping arms (13) are arranged below the opening (101) of the rigid top plate (11) for clamping and electrically contacting with the inserted mating connector (2). [7] Connection according to claim 5, wherein the terminal comprises a pair of first elastic connecting arms (12) opposite each other in the second direction (Y) and spaced apart by a predetermined distance; wherein the connector comprises a pair of second elastic connecting arms (12') opposite each other in the second direction (Y) and spaced apart by a predetermined distance; wherein one of the pair of elastic clamping arms (13) is arranged between the pair of first elastic connecting arms (12) and the other of the pair of elastic clamping arms (13) is arranged between the pair of second elastic connecting arms (12'). [8] Connection according to claim 3, wherein the first elastic connecting arm (12) comprises: a first curved arm (12a) having one end connected to the upper side edge of the first rigid side plate (10); a first straight arm (12c) having one end connected to the other end of the first curved arm (12a); a second curved arm (12b) having one end connected to the other end of the first straight arm (12c); and a second straight arm (12d) having one end connected to the other end of the second curved arm (12b) and the other end connected to the first side edge of the rigid top plate (11), wherein the first curved arm (12a) is U-shaped and its opening points downwards, the second curved arm (12b) is U-shaped and its opening points upwards, and the first straight arm (12c) and the second straight arm (12d) extend in a straight line along the third direction (Z) and are parallel to each other. [9] Connection according to claim 8, wherein the second elastic connecting arm (12') comprises: a third curved arm (12a') having one end connected to the upper side edge of the second rigid side plate (10'); a third straight arm (12c') having one end connected to the other end of the third curved arm (12a'); a fourth curved arm (12b'), one end of which is connected to the other end of the third straight arm (12c'); and a fourth straight arm (12d'), one end of which is connected to the other end of the fourth curved arm (12b'), and the other end of which is connected to the second side edge of the rigid top plate (11), wherein the third curved arm (12a') is U-shaped and its opening is directed downwards, the fourth curved arm (12b') is U-shaped and its opening is directed upwards, and the third straight arm (12c') and the fourth straight arm (12d') extend in a straight line along the third direction (Z) and are parallel to each other. [10] Connection according to claim 2, wherein the pair of elastic clamping arms (13) are arranged symmetrically on either side of a plane of symmetry (P) perpendicular to the first direction (X); wherein, when the mating connector (2) is inserted centrally along the plane of symmetry (P) between the pair of elastic clamping arms (13), the first elastic connecting arm (12) and the second elastic connecting arm (12') do not undergo elastic deformation, so that the rigid top plate (11) does not move; wherein, when the mating connector (2) is biased towards one side of the plane of symmetry (P) and inserted between the pair of elastic clamping arms (13) in a direction parallel to the plane of symmetry (P), the first elastic connecting arm (12) and the second elastic connecting arm (12') undergo elastic deformation, causing the rigid top plate (11) to shift but still remain in an orientation perpendicular to the third direction (Z); wherein, when the mating connector (2) is inserted between the pair of elastic clamping arms (13) in a direction inclined to the plane of symmetry (P), the first elastic connecting arm (12) and the second elastic connecting arm (12') undergo elastic deformation, whereby the rigid top plate (11) is displaced and tilted. [11] Electrical connection arrangement, comprising: a printed circuit board (3); and the terminal (1) according to any one of claims 1-10, which is installed on the circuit board (3), wherein the first rigid side plate (10) and the second rigid side plate (10') of the terminal (1) are fixedly and electrically connected to the circuit board (3), and the rigid top plate (11) of the terminal (1) is suspended above the circuit board (3) by the first elastic connecting arm (12) and the second elastic connecting arm (12'). [12] Electrical connection arrangement according to claim 11, wherein a hole (302) is formed in the circuit board (3) and a connecting pin (10a) is formed on the lower side edge of both the first rigid side plate (10) and the second rigid side plate (10'), wherein the connecting pin (10a) is inserted into the hole (302) on the circuit board (3) to fix and electrically connect the first rigid side plate (10) and the second rigid side plate (10') to the circuit board (3). [13] Electrical connection arrangement according to claim 11, wherein a slot (301) corresponding to the opening (101) on the rigid top plate (11) is formed in the circuit board (3) to allow the mating connector (2) inserted between the pair of elastic clamping arms (13) to pass through the circuit board (3) through the slot (301). [14] The electrical connection assembly of claim 11, further comprising: a mating connector (2) inserted between the pair of elastic clamping arms (13) of the terminal (1) to establish an electrical connection with the terminal (1). [15] Electrical connection arrangement according to claim 11, wherein the electrical connection arrangement comprises a plurality of terminals (1) arranged in an array on the printed circuit board (3); wherein the electrical connection arrangement comprises a plurality of mating connectors (2) which are designed such that they can each be inserted simultaneously into the plurality of terminals (1).

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