Terminal and electrical connector

Abstract

The embodiment of the present application relates to the technical field of electric connectors, and discloses especially a terminal and an electric connector, the terminal is applied to the electric connector, the electric connector is used for electrically connecting a first electrical element and a second electrical element respectively, and the terminal comprises a connecting base, a first contact part and a second contact part which are connected into an integral whole. The connecting base has a first end, a second end, a first side and a second side. The first contact part comprises a first elastic bending arm and a first contact end, one end of the first elastic bending arm is connected to the first end, the other end is connected to the first contact end, the first elastic bending arm is bent, and the first contact end is located on the first side. The second contact part comprises a second elastic bending arm and a second contact end, one end of the second elastic bending arm is connected to the second end, the other end is connected to the second contact end, the second elastic bending arm is bent, and the second contact end is located on the second side. The first contact end and the second contact end extend away from each other, so that the stress distribution is optimized, and the mutual interference of the two contact ends is reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of electric connector, in particular to a terminal and electric connector. BACKGROUND

[0002] The electric connector is a key component for realizing separable interconnection between electrical elements in an electronic system, and its core function is to establish a reliable electrical signal transmission channel. The terminal, as the core contact component of the connector, is directly responsible for electrical conduction with the mating element.

[0003] In the LGA (Land Grid Array) type connector, the terminal is usually designed to have a flexible cantilever beam structure. When the connector is pressed between two circuit boards (or elements), the elastic force arm of the terminal mainly relies on the restoring force generated by the compression deformation to provide the necessary normal contact force, ensuring the stability of the contact interface.

[0004] The inventor found in the process of implementing the present application that at present: this working mechanism relying on the bending deformation of the cantilever beam makes the force arm root or the contact point area become a part where stress is easily highly concentrated. This stress concentration is one of the main factors leading to plastic deformation, fatigue fracture or increase of contact resistance of the terminal, directly affecting the long-term reliability and service life of the connector. SUMMARY

[0005] The embodiment of the present application provides a terminal and electric connector, which can improve the current situation that stress concentration leads to plastic deformation, fatigue fracture or increase of contact resistance of the terminal.

[0006] In a first aspect, to solve the above technical problems, the present application adopts one technical solution: a terminal is provided. The terminal is applied to an electrical connector, and the electrical connector is used for electrically connecting a first electrical element and a second electrical element respectively. The terminal comprises a connecting base, a first contact part and a second contact part which are connected as a whole. The connecting base has opposite first and second ends along a first direction and opposite first and second sides along a second direction. The first contact part comprises a first elastic bending arm and a first contact end. One end of the first elastic bending arm is connected to the first end, and the other end is connected to the first contact end. The first elastic bending arm is bent around the second direction. The first contact end is located on the first side, and is used for connecting the first electrical element. The second contact part comprises a second elastic bending arm and a second contact end. One end of the second elastic bending arm is connected to the second end, and the other end is connected to the second contact end. The second elastic bending arm is bent around the second direction. The second contact end is located on the second side, and is used for connecting the second electrical element. Wherein, the first contact end and the second contact end extend away along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0007] The beneficial effects of the embodiments of the present application are: different from the prior art, when the first contact end contacts the first electrical element and / or the second contact end contacts the second electrical element, the corresponding first elastic bending arm and second elastic bending arm are bent, thereby distributing the pressure generated during contact to the first elastic bending arm and the second elastic bending arm, achieving the effect of optimizing stress distribution, and the first contact end and the second contact end are located on the two sides of the connecting base and extend away, reducing the mutual interference of the two contact ends.

[0008] In one or more embodiments, the connection between the first elastic bending arm and the first contact end, and the connection between the second elastic bending arm and the second contact end are arranged opposite to each other along the third direction; and / or, along the third direction, the first contact end extends towards the connection between the second elastic bending arm and the second contact end, and the second contact end extends towards the connection between the first elastic bending arm and the first contact end.

[0009] In one or more embodiments, the first contact part further comprises a first contact point, which is located at the connection between the first elastic bending arm and the first contact end, and is used for contacting the second contact end.

[0010] In one or more embodiments, the second contact portion further comprises a second contact point, the second contact point being located at the connection between the second elastic bending arm and the second contact end, the second contact point being configured to contact the first contact end.

[0011] In one or more embodiments, the terminal satisfies at least one of the following conditions: a) the connection base, the first elastic bending arm and the second elastic bending arm are arranged obliquely between the first contact end and the second contact end; b) the first contact point is arranged protruding from the connection between the first elastic bending arm and the first contact end towards the second contact end, and / or the second contact point is arranged protruding from the connection between the second elastic bending arm and the second contact end towards the first contact end.

[0012] In one or more embodiments, when the terminal satisfies a and / or b of the above conditions, the first contact portion further comprises a first clamping portion, the first clamping portion being arranged extending from the first contact point, the first clamping portion being configured to clamp the second contact end, and / or the second contact portion further comprises a second clamping portion, the second clamping portion being arranged extending from the second contact point, the second clamping portion being configured to clamp the first contact end.

[0013] In one or more embodiments, the terminal is switchable between a first preset state and a second preset state: in the first preset state, the first contact end is separated from the first electrical element, the first contact point is separated from the second contact end, the second contact end is separated from the second electrical element, and the second contact point is separated from the first contact end; in the second preset state, the first contact end is in contact with the first electrical element, the first contact point is in contact with the second contact end, the second contact end is in contact with the second electrical element, and the second contact point is in contact with the first contact end.

[0014] In one or more embodiments, when the terminal is switched from the first preset state to the second preset state: the first contact point approaches the second contact end to abut and electrically connect, and the second contact point approaches the first contact end to abut and electrically connect; the curvature of the first elastic bending arm increases, and the curvature of the second elastic bending arm increases.

[0015] In one or more embodiments, the first elastic bending arm comprises a first arc portion and a second arc portion, the first arc portion is connected between the first contact end and the second arc portion, and the second arc portion is connected between the first arc portion and the connecting base. The second elastic bending arm comprises a third arc portion and a fourth arc portion, the third arc portion is connected between the second contact end and the fourth arc portion, and the fourth arc portion is connected between the third arc portion and the connecting base. When the first contact end contacts the first electrical element, the connecting base is arranged obliquely relative to a first direction, and the radius of the first arc portion and the radius of the second arc portion are both increased. When the second contact end contacts the second electrical element, the connecting base is arranged obliquely relative to the first direction, and the radius of the third arc portion and the radius of the fourth arc portion are both increased.

[0016] In a second aspect, to solve the above technical problems, another technical solution adopted by the present application is to provide an electrical connector. The electrical connector is applied to an electronic device, the electronic device comprising the electrical connector, a first electrical element and a second electrical element, and the electrical connector being used to electrically connect the first electrical element and the second electrical element respectively. The electrical connector comprises a first shell, a second shell and the above-mentioned terminal. The first shell and the second shell are buckled and jointly form a plurality of through receiving cavities, and one terminal is received in one receiving cavity. At least part of the first contact end and at least part of the second contact end of each terminal are exposed to the receiving cavity, and a plurality of terminals are arranged in an array.

[0017] In one or more embodiments, the first shell is provided with a first limiting portion, the first limiting portion being located in the receiving cavity and being used to abut and limit the second elastic bending arm. The second shell is provided with a second limiting portion, the second limiting portion being located in the receiving cavity and being used to abut and limit the first elastic bending arm.

[0018] Additional aspects and advantages of embodiments of the present application will be described in part below with regard to descriptions, illustrations, or be illustrated through implementation of embodiments of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. Unless specifically stated, the dimensions in the drawings do not constitute a proportional limitation.

[0020] Figure 1 is a structural schematic diagram of the prior art;

[0021] Figure 2 is a perspective view of an electrical connector and electrical components provided by the present application;

[0022] Figure 3 is a perspective view of an electrical connector and electrical components provided by the present application Figure 2 is a cross-sectional view of the A face of the electrical connector and electrical components provided by the present application;

[0023] Figure 4 is a perspective view of a terminal provided by one embodiment of the present application;

[0024] Figure 5 is a perspective view of a terminal in a compressed state provided by one embodiment of the present application;

[0025] Figure 6 is a perspective view of a terminal provided by one embodiment of the present application;

[0026] Figure 7 is a perspective view of a terminal provided by another embodiment of the present application;

[0027] Figure 8 is a perspective view of a terminal provided by yet another embodiment of the present application;

[0028] Figure 9 is a perspective view of a terminal provided by still another embodiment of the present application;

[0029] Figure 10 is a plan view of a terminal provided by one embodiment of the present application.

[0030] Reference signs are as follows:

[0031] DETAILED DESCRIPTION

[0032] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0033] Reference in the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified.

[0035] In the description of the embodiments of the present application, the term "and / or" is only used to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0036] The term "vertical" is used to describe the ideal state between two components. In the actual production or use state, there can be an approximate vertical state between the two components. For example, in combination with numerical description, vertical can refer to the included angle between two straight lines within the range of 90±10°, vertical can also refer to the dihedral angle between two planes within the range of 90±10°, and vertical can also refer to the included angle between a straight line and a plane within the range of 90±10°. The two components described as "vertical" can not be absolute straight lines or planes, but can be approximately straight lines or planes, and as a whole, the overall extension direction is a straight line or a plane, which can be considered as a "straight line" or a "plane".

[0037] The technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0038] The electrical connector is often used for electrical connection between various electrical components. In order to improve the stability of electrical connection, the terminal of the electrical connector needs to abut against the electrical component. Therefore, the LGA terminal 1000' often uses the elasticity of the elastic arm to maintain the abutting contact and improve the stability of electrical connection. The current LGA terminal 1000' is often arranged in a "L" shape, which can be referred to in detail in Figure 1 The long side 1100' of the schematic structure is bent under stress, but such a structure has a single bending position and uneven load distribution, which is easy to cause stress concentration and fatigue brittle fracture of the LGA terminal 1000', affecting the stability of electrical connection.

[0039] Therefore, please refer to Figure 2 and Figure 3 The present application provides an electrical connector 1 applied to a first electrical component 2 and a second electrical component 3, and the electrical connector 1 is used for electrically connecting the first electrical component 2 and the second electrical component 3 respectively. For how the electrical connector 1 solves the above technical problems, please refer to the following.

[0040] Please refer toFigure 4 For the aforementioned terminal 1000, the terminal 1000 is applied to the electrical connector 1 for electrically connecting the first electrical element 2 and the second electrical element 3 respectively, the terminal 1000 comprises a connecting base 1100, a first contact part 1200 and a second contact part 1300 connected as a whole.

[0041] In some embodiments, referring to Figure 4 The connecting base 1100 has opposite first and second ends 1110 and 1120 along a first direction F1 and opposite first and second sides 1130 and 1140 along a second direction F2.

[0042] In some embodiments, referring to Figure 4 The first contact part 1200 comprises a first elastic bending arm 1210 and a first contact end 1220, one end of the first elastic bending arm 1210 is connected to the first end 1110, the other end is connected to the first contact end 1220, the first elastic bending arm 1210 is bent around the second direction F2, and the first contact end 1220 is located on the first side 1130, the first contact end 1220 is used to connect the first electrical element 2.

[0043] In some embodiments, referring to Figure 4 The second contact part 1300 comprises a second elastic bending arm 1310 and a second contact end 1320, one end of the second elastic bending arm 1310 is connected to the second end 1120, the other end is connected to the second contact end 1320, the second elastic bending arm 1310 is bent around the second direction F2, and the second contact end 1320 is located on the second side 1140, the second contact end 1320 is used to connect the second electrical element 3. Wherein, the first contact end 1220 and the second contact end 1320 extend away along a third direction F3. The first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0044] Through the above structure, when the first contact end 1220 contacts the first electrical element 2 and / or the second contact end 1320 contacts the second electrical element 3, the corresponding first elastic bending arm 1210 and second elastic bending arm 1310 are bent, thereby distributing the pressure generated during contact to the first elastic bending arm 1210 and second elastic bending arm 1310, to achieve the effect of optimizing stress distribution, and the first contact end 1220 and the second contact end 1320 are located on both sides of the connecting base 1100 and extend away, reducing the mutual interference of the two contact ends. It should be noted that the bending of the first elastic bending arm 1210 and the second elastic bending arm 1310 here refers to the elastic deformation of the first elastic bending arm 1210 and the second elastic bending arm 1310; and the first elastic bending arm 1210 and the second elastic bending arm 1310 are in a state of bending around the second direction F2 when not under stress.

[0045] Specifically, referring to Figure 4 and Figure 5 When the first contact end 1220 is in contact with the first electrical element 2, the first electrical element 2 applies pressure to the first contact end 1220, if the pressure is small, only through the elastic deformation of the first elastic bending arm 1210, that is, it can be kept abutting to the first electrical element 2, if the pressure is large, the first elastic bending arm 1210 can transmit the pressure to the second elastic bending arm 1310 through the connecting base 1100, thereby optimizing the load distribution; correspondingly, when the second contact end 1320 is in contact with the second electrical element 3, the principle is similar to the above-mentioned first contact end 1220, which will not be described here. It can be understood that the first electrical element 2 and the second electrical element 3 can be electrical elements such as chips or circuit boards, the first electrical element 2 and the second electrical element 3 can be chips or circuit boards at the same time, or different electrical elements, here the first and second are only used to represent that the terminal 1000 in the electrical connector 1 is used as an electrical connection element to connect two electrical elements, and the types of the first electrical element 2 and the second electrical element 3 are not limited. When the first contact end 1220 and the second contact end 1320 are in contact with the first electrical element 2 and the second electrical element 3 respectively, the first elastic bending arm 1210 and the second elastic bending arm 1310 are compressed and deformed at the same time, and the first elastic bending arm 1210 and the second elastic bending arm 1310 are kept abutting to the first electrical element 2 and the second electrical element 3 respectively through elasticity, thereby improving the stability of electrical connection, and the load can be transmitted through the connecting base 1100, reducing the stress concentration phenomenon. It should be noted that the third direction F3 in the present application is the vertical direction when the terminal 1000 is inserted into the electrical connector 1, and the first direction F1 and the second direction F2 are perpendicular to the third direction F3. Alternatively, the first elastic bending arm 1210 and the second elastic bending arm 1310 can be bent in the same direction or in different directions.

[0046] In some embodiments of the present application, referring to Figure 4 and Figure 5 , the connection between the first elastic bending arm 1210 and the first contact end 1220, and the connection between the second elastic bending arm 1310 and the second contact end 1320 are arranged opposite to each other along the third direction F3. Wherein, "arranged opposite to each other along the third direction F3" means that the first elastic bending arm 1210 and the second elastic bending arm 1310 are bent in different directions, so that the first contact end 1220 and the second contact end 1320 connected thereto respectively extend away from each other; and / or, along the third direction F3, the first contact end 1220 extends towards the direction of the connection between the second elastic bending arm 1310 and the second contact end 1320, and the second contact end 1320 extends towards the direction of the connection between the first elastic bending arm 1210 and the first contact end 1220.

[0047] Optionally, the first elastic bending arm 1210 extends away from the second elastic bending arm 1310, and the first contact end 1220 connected to the first elastic bending arm 1210 can extend away from the second elastic bending arm 1310 or extend towards the second elastic bending arm 1310; the second elastic bending arm 1310 extends away from the first elastic bending arm 1210, and the second contact end 1320 connected to the second elastic bending arm 1310 can extend away from the first elastic bending arm 1210 or extend towards the first elastic bending arm 1210. That is, the bending direction of the elastic bending arm can be the same as or opposite to the extension direction of the contact end. When the two directions are the same, it can be applied to two electrical elements with smaller pressure, so that the two elastic bending arms can independently realize their elastic effect; when the two directions are opposite, it can be applied to two electrical elements with larger pressure, so that the first elastic bending arm 1210 and the second elastic bending arm 1310 can uniformly distribute the load through the connecting base 1100, improve the mechanical and electrical properties of the terminal 1000.

[0048] Preferably, referring to Figure 4 When the terminal 1000 simultaneously satisfies the above conditions a and b, the bending direction of the first elastic bending arm 1210 is opposite to the bending direction of the second elastic bending arm 1310, the bending direction of the first elastic bending arm 1210 is opposite to the extension direction of the first contact end 1220, and the bending direction of the second elastic bending arm 1310 is opposite to the extension direction of the second contact end 1320. In combination with the following Figure 9 Referring to Figure 4 The overall structure is similar to a "Chinese knot", so that the overall structure of the terminal 1000 is compact, suitable for use in a smaller space, and can optimize the load distribution and improve the electrical connection stability of the terminal 1000.

[0049] In the use process of the existing LGA terminal 1000', the distance between the two end contacts of the LGA terminal 1000' does not change after compression, that is, the signal transmission distance does not change, and the signal transmission path cannot be optimized.

[0050] Based on the above technical problems, the present application provides a further optimization technical scheme: referring to Figure 6 to Figure 8 The first contact portion 1200 further comprises a first contact point 1230, which is located at the connection between the first elastic bending arm 1210 and the first contact end 1220, and the first contact point 1230 is used to contact the second contact end 1320.

[0051] In some embodiments, the following optimization is also made: the second contact portion 1300 further comprises a second contact point 1330, which is located at the connection between the second elastic bending arm 1310 and the second contact end 1320, and is used to contact the first contact end 1220.

[0052] That is, the first contact end 1220 directly transmits signals to the second contact end 1320 through the first contact point 1230, and the second contact end 1320 directly transmits signals from the first contact end 1220 to the second contact end 1320 through the second contact point 1330. At this time, the number of signal transmission paths is increased, and the signal transmission efficiency is improved. In addition, please refer to Figure 5 Please refer to Figure 6 to Figure 8 When the terminal 1000 is compressed between the first electrical element 2 and the second electrical element 3, the first contact point 1230 is closer to the end of the second contact end 1320, the second contact point 1330 is closer to the end of the first contact end 1220, and the end of the first contact end 1220 and the end of the second contact end 1320 are close to each other, further shortening the distance between the end of the first contact end 1220 and the end of the second contact end 1320, and further improving the signal transmission efficiency.

[0053] In some embodiments, the terminal 1000 at least meets one of the following conditions:

[0054] a) The connection base 1100, the first elastic bending arm 1210 and the second elastic bending arm 1310 are obliquely arranged between the first contact end 1220 and the second contact end 1320. Please refer to Figure 6 , so as to further compress the volume of the two elastic bending arms, and through the oblique arrangement of the above structure, the first contact point 1230 is closer to the second contact end 1320, and the second contact point is closer to the first contact end 1220, so as to shorten the distance between the end of the first contact end 1220 and the end of the second contact end 1320, and through the resistance of the structure itself to the inclination, the electrical connection stability is improved, thereby improving the signal transmission efficiency.

[0055] b) The first contact point 1230 is protrudingly arranged from the connection between the first elastic bending arm 1210 and the first contact end 1220 towards the second contact end 1320, and / or the second contact point 1330 is protrudingly arranged from the connection between the second elastic bending arm 1310 and the second contact end 1320 towards the first contact end 1220. Please refer to Figure 7 , by protrudingly arranging the positions of the first contact point 1230 and the second contact point 1330, the distance between the end of the first contact end 1220 and the end of the second contact end 1320 is reduced, so as to improve the electrical connection stability through the direct abutment of the structure, thereby improving the signal transmission efficiency.

[0056] In some embodiments, referring to Figure 9 , at the first contact 1230 and the second contact 1330, along the third direction F3, the first contact end 1220 and the first contact 1230 are arranged at least partially off-axis, and the second contact end 1320 and the second contact 1330 are arranged at least partially off-axis, so as to increase the contact area, so that when the terminal 1000 has a shift in the first direction F1, the abutting contact of the first contact 1230 and the second contact end 1320 and the abutting contact of the second contact 1330 and the first contact end 1220 can still be maintained, thereby improving the electrical connection stability and further improving the electrical performance of the terminal 1000.

[0057] In some embodiments, referring to Figure 8 , when the terminal 1000 satisfies conditions a and / or b described above, the first contact portion 1200 further comprises a first buckle 1240, the first buckle 1240 is arranged extending from the first contact 1230, the first buckle 1240 is buckled to the second contact end 1320, and / or the second contact portion 1300 further comprises a second buckle 1340, the second buckle 1340 is arranged extending from the second contact 1330, the second buckle 1340 is buckled to the first contact end 1220. By arranging the buckle, the first contact 1230 and the second contact end 1320 are limited, and the second contact 1330 and the first contact end 1220 are limited, so as to improve the electrical connection stability.

[0058] In combination with the above embodiments, the terminal 1000 provided by the present application can be switched between a first preset state and a second preset state: in the first preset state, the first contact end 1220 is separated from the first electrical element 2, the first contact 1230 is separated from the second contact end 1320, the second contact end 1320 is separated from the second electrical element 3, and the second contact 1330 is separated from the first contact end 1220. In the second preset state, the first contact end 1220 is in contact with the first electrical element 2, the first contact 1230 is in contact with the second contact end 1320, the second contact end 1320 is in contact with the second electrical element 3, and the second contact 1330 is in contact with the first contact end 1220.

[0059] Further, when the terminal 1000 is switched from the first preset state to the second preset state: the first contact 1230 approaches the second contact end 1320 to abut and electrically connect, and the second contact 1330 approaches the first contact end 1220 to abut and electrically connect. The curvature of the first elastic bending arm 1210 increases, and the curvature of the second elastic bending arm 1310 increases.

[0060] In some embodiments, referring to Figure 10, the first elastic bending arm 1210 comprises a first arc portion 1211 and a second arc portion 1212. The first arc portion 1211 is connected between the first contact end 1220 and the second arc portion 1212, and the second arc portion 1212 is connected between the first arc portion 1211 and the connecting base 1100. The radius of the first arc portion 1211 is greater than the radius of the second arc portion 1212; and / or, the second elastic bending arm 1310 comprises a third arc portion 1311 and a fourth arc portion 1312. The third arc portion 1311 is connected between the second contact end 1320 and the fourth arc portion 1312, and the fourth arc portion 1312 is connected between the third arc portion 1311 and the connecting base 1100. The radius of the third arc portion 1311 is greater than the radius of the fourth arc portion 1312.

[0061] It can be understood that the elastic structure with variable curvature can effectively affect the local mechanical properties. The greater the curvature, the smaller the radian, the smaller the radius, and the higher the local bending stiffness. Its main role is to bear large load and provide support effect. Therefore, the second arc portion 1212 and the fourth arc portion 1312 with larger curvature are closer to the connecting base 1100, thereby serving as the support basis of the first elastic bending arm 1210 and the second elastic bending arm 1310 respectively, so as to stabilize the structure. The smaller the curvature, the greater the radian, and the greater the radius, so the local bending stiffness is lower. Therefore, the deformation capacity of the part with smaller curvature is better, thereby improving the effect of absorbing pressure load.

[0062] Through the above-mentioned elastic bending arm with variable curvature, the mechanical properties of the terminal 1000 are optimized, and the nonlinear pressure bearing effect with high compliance under low pressure load and high rigidity under high pressure load is realized.

[0063] In some embodiments, when the first contact end 1220 and the second contact end 1320 do not contact the first electrical element 2 and / or the second electrical element 3, the connecting base 1100 extends along the first direction F1.

[0064] In some embodiments, please refer to Figure 5 , Figure 9 and Figure 10 , when the first contact end 1220 contacts the first electrical element 2, the connecting base 1100 is arranged obliquely relative to the first direction F1. The radius of the first arc portion 1211 and the radius of the second arc portion 1212 are both increased. When the second contact end 1320 contacts the second electrical element 3, the connecting base 1100 is arranged obliquely relative to the first direction F1. The radius of the third arc portion 1311 and the radius of the fourth arc portion 1312 are both increased.

[0065] In summary, please refer to Figure 2 and Figure 3The application also provides an electric connector 1 applied to an electronic device, the electronic device comprising the electric connector 1, a first electric element 2 and a second electric element 3. The first electric element 2 and the second electric element 3 can be a CPU type functional electric element or a mainboard type bearing installation type electric element. The electric connector 1 is used for electrically connecting the first electric element 2 and the second electric element 3 respectively, and comprises a first shell 2000, a second shell 3000 and a plurality of terminals 1000.

[0066] In some embodiments, please refer to Figure 2 and Figure 3 The first shell 2000 and the second shell 3000 are buckled and jointly form a plurality of through receiving cavities 4000. One terminal 1000 is received in one receiving cavity 4000. At least part of the first contact end 1220 and at least part of the second contact end 1320 of each terminal 1000 are exposed to the receiving cavity 4000. The plurality of terminals 1000 are arranged in an array. Optionally, the arrangement can be a grid array corresponding to the CPU pins, or can be adjusted according to the arrangement of different electric elements.

[0067] In some embodiments, please refer to Figure 3 The first shell 2000 is provided with a first limiting part 2100 located in the receiving cavity 4000. The first limiting part 2100 is used for abutting and limiting the second elastic bending arm 1310. The second shell 3000 is provided with a second limiting part 3100 located in the receiving cavity 4000. The second limiting part 3100 is used for abutting and limiting the first elastic bending arm 1210.

[0068] In addition, it is still necessary to point out that the LGA terminal 1000' in the prior art is mostly adopted SMT installation process, which needs to complete the welding of the terminal and the tin material in a small space. Therefore, the furnace temperature and the structure flatness change requirement are strict, and the welding process requirement is high. The terminal of the application adopts CMT installation process between the first shell 2000 and the second shell 3000. Compared with the above installation mode, the tin ball welding is not needed, the terminal 1000 is directly inserted into the receiving cavity 4000 for welding, and the CMT installation process can improve the mechanical connection strength of the electric connector 1, so that it can withstand greater stress, and the welding reliability is excellent, and the electric performance is excellent.

[0069] Based on the above structure, the application also provides a manufacturing method of the terminal 1000:

[0070] The "B" type structure has two right angles, which are the connection of the first contact end 1220 and the first elastic bending arm 1210, and the connection of the second contact end 1320 and the second elastic bending arm 1310;

[0071] The first contact end 1220 is bent relative to the first elastic bending arm 1210, so that the first contact end 1220 extends along the third direction F3;

[0072] The second contact end 1320 is bent relative to the second elastic bending arm 1310, so that the second contact end 1320 extends along the third direction F3, and the second contact end 1320 and the third contact end extend in opposite directions;

[0073] The first elastic bending arm 1210 is bent around the second direction F2, and forms a first arc portion 1211 and a second arc portion 1212;

[0074] The second elastic bending arm 1310 is bent around the second direction F2, and forms a third arc portion 1311 and a fourth arc portion 1312;

[0075] The "Chinese knot" shaped terminal 1000 structure is formed in one piece.

[0076] The application aims to provide a terminal 1000. The terminal 1000 is applied to an electrical connector 1 for electrically connecting a first electrical element 2 and a second electrical element 3 respectively, and the terminal 1000 comprises a connecting base 1100, a first contact part 1200 and a second contact part 1300 which are connected as a whole. The connecting base 1100 has opposite first and second ends 1110 and 1120 along a first direction F1 and opposite first and second sides 1130 and 1140 along a second direction F2. The first contact part 1200 comprises a first elastic bending arm 1210 and a first contact end 1220, one end of the first elastic bending arm 1210 is connected to the first end 1110, the other end is connected to the first contact end 1220, the first elastic bending arm 1210 is bent around the second direction F2, the first contact end 1220 is located on the first side 1130, and the first contact end 1220 is used for connecting the first electrical element 2. The second contact part 1300 comprises a second elastic bending arm 1310 and a second contact end 1320, one end of the second elastic bending arm 1310 is connected to the second end 1120, the other end is connected to the second contact end 1320, the second elastic bending arm 1310 is bent around the second direction F2, the second contact end 1320 is located on the second side 1140, and the second contact end 1320 is used for connecting the second electrical element 3. Wherein, the first contact end 1220 and the second contact end 1320 extend away along a third direction F3. Through the above structure, when the first contact end 1220 contacts the first electrical element 2 and / or the second contact end 1320 contacts the second electrical element 3, the corresponding first elastic bending arm 1210 and second elastic bending arm 1310 are bent, thereby distributing the pressure generated during contact to the first elastic bending arm 1210 and the second elastic bending arm 1310, so as to achieve the effect of optimizing stress distribution, and the first contact end 1220 and the second contact end 1320 are located on both sides of the connecting base 1100 and extend away, reducing the mutual interference of the two contact ends.

[0077] Based on the same inventive concept, the application further provides an electric connector 1 applied to an electronic device, the electronic device comprising the electric connector 1, a first electric element 2 and a second electric element 3, the electric connector 1 being used to electrically connect the first electric element 2 and the second electric element 3 respectively. The electric connector 1 comprises a first housing 2000, a second housing 3000 and the above-mentioned terminal 1000. The first housing 2000 and the second housing 3000 are buckled and jointly form a plurality of through receiving cavities 4000, and one terminal 1000 is received in one receiving cavity 4000. At least part of the first contact end 1220 and at least part of the second contact end 1320 of each terminal 1000 are exposed to the receiving cavity 4000, and the plurality of terminals 1000 are arranged in an array. The structure and function of the terminal 1000 can be referred to the above, and will not be described here again. Therefore, the terminal 1000 provided by the application can also improve the current situation that stress concentration causes plastic deformation, fatigue fracture or increase of contact resistance of the terminal 1000.

[0078] It should be noted that the preferred embodiments of the application are given in the specification and drawings of the application, but the application can be implemented in many different forms, and is not limited to the embodiments described in the specification. The embodiments do not serve as additional limitations on the content of the application, and the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive. Furthermore, the above technical features continue to be combined with each other, forming various embodiments not listed above, which are all considered to be within the scope of the application. Furthermore, for those skilled in the art, the above description can be improved or changed, and all these improvements and changes should be within the protection scope of the appended claims of the application.

Claims

1. A terminal applied to an electrical connector for electrically connecting a first electrical component and a second electrical component, respectively, characterized by, The terminal comprises: a connecting base having opposite first and second ends in a first direction and opposite first and second sides in a second direction; a first contact portion comprising a first elastic bending arm and a first contact end, one end of the first elastic bending arm being connected to the first end and the other end being connected to the first contact end, the first elastic bending arm being bent around the second direction, the first contact end being located on the first side, the first contact end being used for connecting the first electrical element; and a second contact portion comprising a second elastic bending arm and a second contact end, one end of the second elastic bending arm being connected to the second end and the other end being connected to the second contact end, the second elastic bending arm being bent around the second direction, the second contact end being located on the second side, the second contact end being used for connecting the second electrical element; wherein the first contact end and the second contact end extend away from each other in a third direction; the first direction, the second direction and the third direction are perpendicular to each other between any two directions; wherein the first contact portion further comprises a first contact point, the first contact point being located at the connection between the first elastic bending arm and the first contact end, the first contact point being used for contacting the second contact end; the second contact portion further comprises a second contact point, the second contact point being located at the connection between the second elastic bending arm and the second contact end, the second contact point being used for contacting the first contact end.

2. The terminal of claim 1, wherein the connection between the first elastic bending arm and the first contact end is located opposite to the connection between the second elastic bending arm and the second contact end in the third direction; and / or, in the third direction, the first contact end extends towards the connection between the second elastic bending arm and the second contact end, and the second contact end extends towards the connection between the first elastic bending arm and the first contact end.

3. The terminal of claim 1, wherein The terminal at least meets one of the following conditions: a) the connecting base, the first elastic bending arm and the second elastic bending arm are inclinedly arranged between the first contact end and the second contact end; b) the first contact point is protrudingly arranged from the connection between the first elastic bending arm and the first contact end towards the second contact end, and / or the second contact point is protrudingly arranged from the connection between the second elastic bending arm and the second contact end towards the first contact end.

4. The terminal of claim 3, wherein When the terminal meets a and / or b in the above conditions, the first contact portion further comprises a first clamping buckle, the first clamping buckle being arranged extending from the first contact point, the first clamping buckle being clamped on the second contact end, and / or the second contact portion further comprises a second clamping buckle, the second clamping buckle being arranged extending from the second contact point, the second clamping buckle being clamped on the first contact end.

5. The terminal of claim 1, wherein The terminal can be switched between a first preset state and a second preset state: in the first preset state, the first contact end is separated from the first electrical element, the first contact point is separated from the second contact end, the second contact end is separated from the second electrical element, and the second contact point is separated from the first contact end; In the second preset state, the first contact end contacts the first electrical element, the first contact point contacts the second contact end, the second contact end contacts the second electrical element, and the second contact point contacts the first contact end.

6. The terminal of claim 5 wherein, When the terminal is switched from the first preset state to the second preset state: the first contact point is close to the second contact end to abut and electrically connect, and the second contact point is close to the first contact end to abut and electrically connect; the curvature of the first elastic bending arm increases, and the curvature of the second elastic bending arm increases.

7. The terminal according to claim 1, wherein: the first elastic bending arm comprises a first arc portion and a second arc portion, the first arc portion is connected between the first contact end and the second arc portion, and the second arc portion is connected between the first arc portion and the connecting base; the second elastic bending arm comprises a third arc portion and a fourth arc portion, the third arc portion is connected between the second contact end and the fourth arc portion, and the fourth arc portion is connected between the third arc portion and the connecting base; when the first contact end contacts the first electrical element, the connecting base is arranged obliquely relative to the first direction, and the radius of the first arc portion and the radius of the second arc portion are increased; when the second contact end contacts the second electrical element, the connecting base is arranged obliquely relative to the first direction, and the radius of the third arc portion and the radius of the fourth arc portion are increased.

8. An electrical connector for use in an electronic device, the electronic device comprising the electrical connector, a first electrical component and a second electrical component, the electrical connector being for electrically connecting the first and second electrical components respectively, characterised in that, The electrical connector comprises: a first shell, a second shell, and a plurality of terminals according to any one of claims 1-7; the first shell and the second shell are buckled and jointly form a plurality of through receiving cavities, one terminal is received in one receiving cavity, at least part of the first contact end and at least part of the second contact end of each terminal are exposed to the receiving cavity, and a plurality of terminals are arranged in an array.

9. The electrical connector according to claim 8, wherein: the first shell is provided with a first limiting portion, the first limiting portion is located in the receiving cavity, and the first limiting portion is used for abutting and limiting the second elastic bending arm; the second shell is provided with a second limiting portion, the second limiting portion is located in the receiving cavity, and the second limiting portion is used for abutting and limiting the first elastic bending arm.

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