WO2024021584A1

WO2024021584A1 - Terminal structure, electrical connector, and electronic device

Info

Publication number: WO2024021584A1
Application number: PCT/CN2023/077239
Authority: WO
Inventors: 晏政
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-07-26
Filing date: 2023-02-20
Publication date: 2024-02-01
Also published as: CN117438811A

Abstract

The present disclosure provides a terminal structure, an electrical connector, and an electronic device. The terminal structure comprises: a retaining member; and two elastic members that are oppositely arranged on the retaining member. Each elastic member comprises a support arm, a first elastic arm, and a movable portion that are successively connected; the support arm extends in a direction away from the retaining member; the movable portion extends in a direction close to the retaining member; the movable portion is provided with a first contact and a second contact that are oppositely arranged, the first contact is arranged toward an electrically conductive site of a circuit board or a chip, and the second contact is arranged toward the support arm; the elastic member has a first state and a second state; in the first state, the first contact abuts against the electrically conductive site of the circuit board or the chip, and the second contact abuts against the support arm; in the second state, the second contact is far away from the support arm.

Description

Terminal structures, electrical connectors and electronic equipment

Cross-references to related applications

This disclosure claims priority to Chinese patent application CN202210887094.3 titled "Terminal Structure, Electrical Connector and Electronic Equipment" filed on July 26, 2022, the entire content of which is incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the field of communication technology, and specifically to a terminal structure, an electrical connector and an electronic device.

Background technique

With the rapid development of electronic technology, LGA (Land Grid Array) technology has been widely used in the industry. In the related art, an electrical connector is proposed to connect the LGA type chip and the circuit board. Generally speaking, one end of the electrical connector connected to the chip protrudes from the insulating body of the electrical connector and is elastically connected to the conductive site of the chip; one end of the electrical connector connected to the circuit board is directly connected to the conductive site of the circuit board. at. However, the above-mentioned terminal structure provides a small elastic working range between the conductive points of the chip and the conductive points of the circuit board. After repeated pressure, the structural plasticity of the terminal becomes larger, resulting in poor durability and poor working stability of the terminal structure. .

Contents of the invention

Embodiments of the present disclosure provide a terminal structure, an electrical connector and an electronic device to at least solve the technical problem of a small elastic working range of the terminal structure in the related art.

In a first aspect, the present disclosure provides a terminal structure, including: a holder; two elastic members, which are arranged oppositely on the holder; the elastic member includes a support arm, a first elastic arm and a movable part connected in sequence. The support arm Extending in a direction away from the holder, the movable part extends in a direction close to the holder. The movable part has a first contact point and a second contact point arranged oppositely. The first contact point faces the conductive point of the circuit board or chip, and the second contact point faces the conductive point of the circuit board or chip. The contacts are arranged toward the support arm; the elastic member has a first state and a second state. In the first state, the first contact contacts the conductive point of the circuit board or chip, and the second contact contacts the support arm; in the second state status, the second contact point is away from the support arm.

In a second aspect, the present disclosure also provides an electrical connector, including: an insulating member provided with a receiving groove; the terminal structure as described above, and the retaining member of the terminal structure is inserted into the receiving groove to be connected and fastened to the insulating member.

In a third aspect, the present disclosure also provides an electronic device, including the electrical connector as described above.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the disclosure, and constitute a part of the disclosure. The illustrative embodiments and their descriptions are used to explain the present disclosure and do not constitute undue limitations on the present disclosure. In the attached picture:

Figure 1 is a perspective view of the terminal structure provided by the present disclosure;

Figure 2 is a side view of the terminal structure in Figure 1;

Figure 3 is a perspective view of the terminal structure provided by the present disclosure in a first state;

Figure 4 is a side view of the terminal structure in Figure 3;

Figure 5 is a perspective view of an asymmetric terminal structure provided by the present disclosure;

Figure 6 is a side view of the terminal structure in Figure 5;

Figure 7 is a perspective view of a terminal structure with a first fastener provided by the present disclosure;

Figure 8 is a side view of the terminal structure in Figure 7;

Figure 9 is a perspective view of a terminal structure with a second fastener provided by the present disclosure;

Figure 10 is a side view of the terminal structure in Figure 9;

Figure 11 is a top view of the insulating member provided by the present disclosure; and

Figure 12 is a partial enlarged view of the electrical connector provided by the present disclosure.

Explanation of reference symbols:

10. Terminal structure;

100. Holding member; 110. Body; 120. First connecting arm; 130. Second connecting arm;

200. Elastic member; 201. First contact point; 202. Second contact point; 210. Support arm; 220. First elastic arm; 230. Movable part; 231. First cantilever arm; 232. Second elastic arm; 233 , the second cantilever; 234, contact piece;

300. Fasteners;

20. Insulating parts; 21. Receiving groove; 2101. First channel; 2102. Second channel; 2103. Resisting structure;

30. Circuit board;

40. Chip.

Detailed ways

The present disclosure will be described in detail below in conjunction with embodiments with reference to the accompanying drawings. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

It should be noted that the terms "first", "second", etc. in the description and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

In a first aspect, referring to FIGS. 1 to 4 , an embodiment of the present disclosure provides a terminal structure, including: a retaining member 100 and two elastic members 200 .

Two elastic members 200 are arranged oppositely on the holder 100; the elastic member 200 includes a support arm 210, a first elastic arm 220 and a movable part 230 connected in sequence. The support arm 210 extends in a direction away from the holder 100, and the movable part 230 dynasty Extending in a direction close to the holder 100 , the movable portion 230 has a first contact 201 and a second contact 202 arranged oppositely. The first contact 201 faces the conductive point of the circuit board 30 or the chip 40 , and the second contact 202 faces A support arm 210 is provided.

The elastic member 200 has a first state and a second state. In the first state, the first contact 201 contacts the circuit board 30 or the conductive point of the chip 40, and the second contact 202 contacts the support arm 210; in the second state , the second contact point 202 is away from the support arm 210 .

In this embodiment, by optimizing the structure of the terminal structure 10, while ensuring that the terminal structure 10 can transmit high-speed signals, the elastic working range of the terminal structure 10 is increased, thereby reducing the plasticity of the terminal structure 10 after being subjected to multiple pressures, effectively The practicality and reliability of the terminal structure 10 are improved, making the connection between the chip 40 and the circuit board 30 more reliable and efficient.

The terminal structure 10 is configured as a combined member including at least a retaining member 100 and two elastic members 200, the retaining member 100 is connected to the insulating member, and the two elastic members 200 are electrically connected to the conductive sites of the circuit board 30 and the chip 40 respectively, In this way, conduction and signal transmission by the terminal structure 10 to the circuit board 30 and the chip 40 are achieved. Moreover, through further structural optimization, the elastic member 200 is configured into a horizontal V-shaped structure. The elastic member 200 of the V-shaped structure is laterally arranged between the circuit board 30 and the chip 40. This is beneficial to reducing the size of the terminal structure. The space occupied by the terminal structure 10 is reduced, and the terminal structure 10 can be miniaturized and compactly arranged.

The elastic member 200 is configured as a combined component including at least a support arm 210 , a first elastic arm 220 and a movable part 230 . The support arm 210 provides supporting force to the first elastic arm 220 and the movable part 230 . The first elastic arm 220 An elastic force is provided to the movable part 230 , and the movable part 230 is electrically connected to the circuit board 30 or the chip 40 . The movable portion 230 can move in a direction close to or away from the support arm 210 , and the movement trajectory is the elastic working range of the terminal structure 10 between the circuit board 30 and the chip 40 . It can be understood that the first elastic arm 220 at least provides the movable part 230 with two elastic working ranges. One is that when the movable part 230 changes from the second state to the first state, the first elastic arm 220 is the movable part 230 . Provide an elastic force from abutting to the support arm 210 to moving away from the support arm 210; secondly, after the movable part 230 is in the first state, the movable part 230 generates its own deformation when the circuit board 30 and the chip 40 continue to compress the terminal structure 10. The first elastic arm 220 also provides an elastic force to the movable part 230 that can restore the deformed state to the original state. In this way, the at least two layers of elastic force provided by the first elastic arm 220 greatly increase the deformation space and elastic working range of the elastic member 200 .

At the same time, the movable portion 230 of the elastic member 200 is disposed with the second contact 202 abutting the support arm 210. In this way, when the terminal structure 10 is in the working state, a double-circuit path can be formed on the elastic member 200 of the terminal structure 10. Realize the conduction of electrical signals, thereby avoiding the problem that there is only one signal path in the traditional terminal structure 10, and the signal path is long, which is not conducive to the transmission of high-speed signals. The arrangement of multiple loop paths effectively improves the terminal structure 10's ability to handle high-speed signals. Transmission stability and reliability.

Based on this, the working principle of the terminal structure 10 is further explained as follows. The entire terminal structure 10 is connected and fixed on the insulating member 20 through the retaining member 100, thus providing a stable working environment for the two elastic members 200. two elastic pieces 200 is distributed between the circuit board 30 and the chip 40. One elastic member 200 is electrically connected to the conductive site of the circuit board 30, and the other elastic member 200 is electrically connected to the conductive site of the chip 40. For example, but not limited to, two elastic members 200 arranged up and down.

In the second state, the two elastic members 200 are in a free state. In the first state, the two elastic members 200 are in a compressed and stressed state. The first contacts 201 of the two elastic members 200 are respectively in contact with the conductive points of the circuit board 30 and the chip 40 , and the second contacts 202 are respectively in contact with the conductive points of the circuit board 30 and the chip 40 . Connected to the corresponding support arm 210, in this way, a double loop path is formed on the two elastic members 200 of the terminal structure 10, thereby realizing high-speed signal transmission between the circuit board 30 and the chip 40. When the elastic member 200 is in the first state, the distance between the circuit board 30 and the chip 40 continues to be compressed. At this time, the shape of the movable part 230 itself is deformed, and the movable part 230 continues to move toward the holder 100. The two The end of the support arm 210 away from the holder 100 gradually moves away to provide a smaller elastic deformation amount to the first elastic arm 220 and the movable part 230 as a whole through the support arm 210 , thereby further improving the terminal structure 10 through the support arm 210 Flexible working range.

Of course, the two elastic members 200 can be connected between the conductive points of the two chips 40 to achieve communication connection between the two chips 40 . And, in other embodiments, the two elastic members 200 can also be connected between the conductive points of the two circuit boards 30 to realize the communication connection between the two circuit boards 30 .

In a possible implementation, the first elastic arm 220 is curved, a first end of the first elastic arm 220 is connected to the support arm 210, and a second end of the first elastic arm 220 is connected to the movable part 230. In the state, the first included angle between the tangent line of the first end and the tangent line of the second end is 30° to 90°.

In this embodiment, the structure of the first elastic arm 220 is configured. The first elastic arm 220 is arranged in a curved manner, and the degree of curvature of the first elastic arm 220 is set so that the angle between tangents at two opposite ends of the first elastic arm 220 is maintained between 30° and 90°. For example, but not limited to, the angle between the tangents of the opposite ends of the first elastic arm 220 is configured to be 45°. At this time, the first elastic arm 220 has a greater degree of bending, which can provide greater deformation elasticity to the movable part 230 force.

Optionally, in the movement direction of the movable part 230, the cross-sectional shape of the first elastic arm 220 is an arc of a circle.

In a possible implementation, the movable part 230 includes a first cantilever 231, a second elastic arm 232 and a second cantilever 233 connected in sequence. One end of the first cantilever 231 away from the second elastic arm 232 is connected to the first elastic arm 231. The arm 220 has a first cantilever arm 231 extending in a direction close to the holder 100 and a second cantilever arm 233 extending in a direction close to the support arm 210 .

The first contact point 201 is provided on the second elastic arm 232 , and the second contact point 202 is provided on an end of the second cantilever arm 233 close to the support arm 210 .

In this embodiment, the structure of the movable part 230 is optimized. The movable part 230 is configured as a combined member including at least a first cantilever 231, a second elastic arm 232, and a second cantilever 233. The combined member forms a horizontally placed V-shaped structure. On the one hand, the second elastic arm 232 provides an elastic force for the second cantilever 233 to return to its original position; on the other hand, it also electrically connects the conductive points of the circuit board 30 or the chip 40 .

In this way, by providing the structure of the movable portion 230, the elastic member 200 is configured as a combined component including at least two V-shaped structures, and the two V-shaped structures are arranged back to form an ear-shaped structure. Furthermore, the terminal structure 10 is configured It is a composite member with at least a binaural structure. Through the binaural structure, the elastic deformation amount of the terminal structure 10 is greatly increased in the movement direction of the movable part 230, and the elastic working range of the terminal structure 10 is increased.

In a possible implementation, the second elastic arm 232 is curved, the third end of the second elastic arm 232 is connected to the first cantilever 231, and the fourth end of the second elastic arm 232 is connected to the second cantilever 233. In the first state, the second included angle between the tangent line of the third end and the tangent line of the fourth end is 15°-75°.

In this embodiment, the structure of the second elastic arm 232 is configured. The second elastic arm 232 is arranged in a curved manner, and the degree of bending of the second elastic arm 232 is optimized so that the angle between the tangents of the opposite ends of the second elastic arm 232 is maintained between 15° and 75°. For example, but not limited to, the angle between the tangents at the opposite ends of the second elastic arm 232 is configured to be 15°. At this time, the bending degree of the second elastic arm 232 is relatively gentle, which can provide an appropriate position for the second cantilever 233. Deformation elastic force.

Optionally, in the movement direction of the movable part 230, the cross-sectional shape of the second elastic arm 232 is an arc of a circle.

In a possible implementation, the bending degree of the first elastic arm 220 and the second elastic arm 232 is optimized. Make the second included angle smaller than the first included angle. For example, but not limited to, the radius of the circle where the first elastic arm 220 is located is larger than the circle plate where the second elastic arm 232 is located.

In a possible implementation, the movable part 230 further includes a contact member 234 connected to an end of the second cantilever 233 away from the second elastic arm 232; the second contact point 202 is provided on the contact member 234.

In this embodiment, the structure of the movable part 230 is configured. The movable part 230 is configured as a combined member including at least a first cantilever 231 , a second elastic arm 232 , a second cantilever 233 and a contact piece 234 . The contact piece 234 contacts the support arm 210, so as to prevent the end of the second cantilever 233 from directly contacting the support arm 210, causing certain irreversible mechanical damage such as bumps and scratches to the support arm 210. Thereby, the service life of the entire terminal structure 10 is improved.

In a possible implementation, in the direction of movement of the movable part 230 , the cross-section of the contact member 234 is circular, arc-shaped, wavy, semi-circular, linear, triangular, rectangular, rhombus, or pentagonal. Or any of the hexagons.

In this embodiment, the structure of the contact member 234 is configured. The abutment 234 may be configured as a spherical structure. Of course, in other embodiments, the contact member 234 can also be configured as an arc plate structure, a hemispherical structure, a wavy plate structure, an elliptical structure, a triangular pyramid structure, a prism structure, or a polyhedron. structure etc. Optionally, in order to save raw materials, the abutment piece 234 is configured as an arc-shaped plate structure, and the arc surface of the abutment piece 234 abuts against the support arm 210 .

Referring to Figures 5 and 6, in a possible implementation, the first included angles of the two elastic members 200 are different.

In this embodiment, the structures of two elastic members 200 are configured. The two elastic members 200 are configured in an asymmetric structure, so that one elastic member 200 can provide greater elastic force and the other elastic member 200 can provide moderate elastic force, so as to meet individual needs.

Of course, in other embodiments, in order to reduce processing difficulty, the two elastic members 200 are configured with the same structure, such as In addition, the aesthetics of the entire terminal can be improved.

Referring to Figures 1 and 2 and Figures 5 and 6, in a possible implementation, in the second state, the support arms 210 of the two elastic members 200 are spaced apart.

In this embodiment, the arrangement positions of the two elastic members 200 are optimized. The two elastic members 200 are spaced apart so that the two support arms 210 are in a non-contact state when not working. At this time, the support arm 210 provides a certain elastic force to the first elastic arm 220 and the movable part 230, and increases the elastic working range of the terminal structure 10 through the movement distance of the support arm 210 in the movement direction of the movable part 230.

Referring to FIGS. 7 to 10 , in a possible implementation, the terminal structure 10 further includes a fastener 300 , and the fastener 300 locks the support arms 210 of the two elastic members 200 .

In this embodiment, the arrangement of the two elastic members 200 is optimized. In order to reduce the randomness of the two elastic members 200 in the movement direction of the movable part 230, a fastener 300 is configured. The fastener 300 keeps the two support arms 210 in contact even in the second state. In this way, the rigidity of the terminal structure 10 at the two support arms 210 can be improved, making the working environment of the movable part 230 more stable.

Referring to FIGS. 7 and 8 , optionally, the fastener 300 is a dumbbell-shaped structural member, which is disposed between the two support arms 210 to realize the connection of the two support arms 210 through the dumbbell-shaped structural member itself.

Referring to FIGS. 9 and 10 , of course, in other embodiments, the fastener 300 can also be a C-shaped elastic structural member. The C-shaped elastic structural member is sleeved on the outside of the two support arms 210 to connect the two support arms 210 . The support arm 210 is locked.

In one possible implementation, the support arm 210 is disposed obliquely on the holder 100 , and in the extending direction of the support arm 210 , the support arms 210 of the two elastic members 200 gradually converge.

In this embodiment, the arrangement of the support arm 210 and the holder 100 is optimized. The support arms 210 are arranged obliquely on the holder 100. One end of the two support arms 210 is connected to the holder 100 at intervals, and the other ends are gradually closer. In this way, an approach is formed between the two support arms 210 and the holder 100. triangular area.

On the one hand, when no other structural components are disposed between the two support arms 210, the two obliquely arranged support arms 210 can provide a certain elastic working range for the movable part 230.

On the other hand, when the fastener 300 is disposed between the two support arms 210, the fastener 300 can gather the two support arms 210 that are arranged obliquely to form a triangular area, so that the two support arms 210 and the retaining member The structure formed by the 100-meter enclosure is more stable and less affected by external forces.

Referring to FIGS. 1 to 10 , in a possible implementation, the holder 100 includes a body 110 , a first connecting arm 120 and a second connecting arm 130 . The first connecting arm 120 and the second connecting arm 130 are respectively provided on the body. The opposite sides of 110, and both ends of the first connecting arm 120 and the second connecting arm 130 protrude from the body 110 to form two opposite grooves on the body 110. The support arms 210 of the two elastic members 200 respectively Groove connected to the body 110 .

In this embodiment, the structure of the holding member 100 is optimized. The holder 100 is configured to include at least a body 110, The first connecting arm 120 and the second connecting arm 130 are combined components. The first connecting arm 120 and the second connecting arm 130 are respectively connected to opposite sides of the body 110 to form the H-shaped structure of the holder 100 . In this way, at the opposite ends of the holder 100, the first connecting arm 120, the body 110 and the second connecting arm 130 respectively form a groove structure, and the support arm 210 of the elastic member 200 is connected in the groove structure and faces toward Extends in a direction away from the body 110 . The two elastic members 200 are opposite and arranged in a mirror image to form a binaural terminal structure 10 in the movement direction of the movable part 230, which has fast signal transmission speed and a large elastic working range.

Referring to Figures 11 and 12, in a second aspect, the present disclosure also provides an electrical connector, including: an insulating member 20 provided with a receiving groove 21; the terminal structure 10 as described above, and the retaining member 100 of the terminal structure 10 is inserted into In the receiving groove 21, it is connected and fastened to the insulating member 20. The structure of the terminal structure 10 refers to the above-mentioned embodiments. Since this electrical connector adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be detailed here. Repeat.

Referring to Figure 12, in one embodiment, the receiving groove 21 includes a first channel 2101 for accommodating two elastic members 200, a second channel 2102 for accommodating the holding member 100, and a resisting structure 2103. The second channel 2102 extends in the same direction as the first channel 2101, and the second channel 2102 continues to be recessed from the bottom of the first channel 2101. The resisting structure 2103 extends from the side wall of the first channel 2101 toward the second channel 2102. . In this way, when the terminal structure 10 is received in the receiving groove 21, the first elastic arm 220 of the elastic member 200 contacts the side wall of the first channel 2101, and the movable portion 230 of the elastic member 200 is partially exposed from the receiving groove 21. , so as to abut the conductive points of the circuit board 30 or the chip 40; at the same time, the body 110 of the holder 100 abuts the resisting structure 2103, and the first connecting arm 120 and the second connecting arm 130 of the holder 100 are inserted into Connected in the second channel 2102 to realize the connection and fastening of the retaining member 100 and the insulating member 20 . For example, but not limited to, the insulating member 20 is a plastic structural member.

In one embodiment, the insulating member 20 is provided with a plurality of receiving grooves 21 arranged in an array, and one receiving groove 21 corresponds to a terminal structure 10 .

In a third aspect, the present disclosure also provides an electronic device, including the electrical connector as described above. The structure of the electrical connector refers to the above-mentioned embodiments. Since this electronic device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described again here. .

Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present disclosure can be implemented using general-purpose computing devices, and they can be concentrated on a single computing device, or distributed across a network composed of multiple computing devices. , optionally, they may be implemented in program code executable by a computing device, such that they may be stored in a storage device for execution by the computing device, and in some cases, may be in a sequence different from that herein. The steps shown or described are performed either individually as individual integrated circuit modules, or as multiple modules or steps among them as a single integrated circuit module. As such, the present disclosure is not limited to any specific combination of hardware and software.

According to the terminal structure, electrical connector and electronic device provided by the present disclosure, the terminal structure includes: a holding member; two The elastic member is relatively arranged on the holder; the elastic member includes a support arm, a first elastic arm and a movable part connected in sequence. The support arm extends in a direction away from the holder, and the movable part extends in a direction close to the holder. The movable part It has a first contact point and a second contact point arranged oppositely, the first contact point is facing the conductive point of the circuit board or chip, and the second contact point is set towards the support arm; the elastic member has a first state and a second state, and in the third In one state, the first contact is in contact with the conductive point of the circuit board or chip, and the second contact is in contact with the support arm; in the second state, the second contact is away from the support arm. By optimizing the structure of the terminal structure, the present disclosure effectively improves the elastic working range of the terminal while ensuring that the terminal structure can transmit high-speed signals, thereby improving the practicality and reliability of the terminal structure and making the connection between the chip and the circuit board more reliable. , efficient. The terminal structure is configured as a combined member including at least a retaining member and two elastic members. The two elastic members are connected to the retaining member. The retaining member is connected to the insulating member. The two elastic members are electrically connected to the conductive potentials of the circuit board and the chip respectively. This way, the terminal structure can conduct conduction and signal transmission to the circuit board and chip. In addition, the two elastic members are configured as a binaural structure to provide the terminal structure with a larger elastic working range between the circuit board and the chip as much as possible to avoid the plasticity of the terminal structure becoming larger after repeated pressure, thereby improving the terminal The durability and working stability of the structure; at the same time, a second contact is configured on the elastic member, so that when the terminal structure is in the first state, a double-circuit conduction electrical signal can be formed on the terminal structure, so that the terminal structure can Meet the transmission requirements for high-speed signals.

The above are only optional embodiments of the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and changes. Any modifications, equivalent substitutions, improvements, etc. made within the principles of this disclosure shall be included in the protection scope of this disclosure.

Claims

A terminal structure including:

retaining parts; and

Two elastic members are arranged oppositely on the holding member; the elastic member includes a support arm, a first elastic arm and a movable part connected in sequence, the support arm extends in a direction away from the holding member, and the The movable part extends in a direction close to the holder. The movable part has a first contact point and a second contact point arranged oppositely. The first contact point faces the conductive point of the circuit board or chip, and the second contact point faces the conductive point of the circuit board or chip. The contact points are arranged towards the support arm;

The elastic member has a first state and a second state. In the first state, the first contact contacts the conductive point of the circuit board or chip, and the second contact contacts the support arm; In the second state, the second contact point is away from the support arm.
The terminal structure according to claim 1, wherein the first elastic arm is curved, a first end of the first elastic arm is connected to the support arm, and a second end of the first elastic arm is connected to In the first state of the movable part, a first included angle between a tangent to the first end and a tangent to the second end is 30° to 90°.
The terminal structure according to claim 2, wherein the movable part includes a first cantilever, a second elastic arm and a second cantilever connected in sequence, and an end of the first cantilever away from the second elastic arm is connected to The first elastic arm, the first cantilever arm extends in a direction close to the holder, and the second cantilever arm extends in a direction close to the support arm;

The first contact point is provided on the second elastic arm, and the second contact point is provided on an end of the second cantilever arm close to the support arm.
The terminal structure according to claim 3, wherein the second elastic arm is curved, a third end of the second elastic arm is connected to the first cantilever, and a fourth end of the second elastic arm is connected to In the second cantilever, in the first state, the second included angle between the tangent line of the third end and the tangent line of the fourth end is 15°˜75°.
The terminal structure according to claim 4, wherein the second included angle is smaller than the first included angle.
The terminal structure according to claim 3, wherein the movable part further includes a contact member connected to an end of the second cantilever arm away from the second elastic arm;

The second contact point is provided on the contact piece.
The terminal structure according to claim 6, wherein in the movement direction of the movable part, the cross section of the contact piece is circular, arc, wavy, semicircular, linear, triangular, rectangular, Any of rhombus, pentagon or hexagon.
The terminal structure according to claim 2, wherein the first included angles of the two elastic members are different.
The terminal structure according to claim 1, wherein in the second state, the support arms of the two elastic members are spaced apart.
The terminal structure according to claim 1, wherein the terminal structure further includes a fastener, and the fastener locks the support arms of the two elastic members.
The terminal structure according to claim 9 or 10, wherein the support arm is provided obliquely on the retaining member, and the support arms of the two elastic members gradually converge in the extending direction of the support arm.
The terminal structure according to claim 1, wherein the holding member includes a body, a first connecting arm and a second connecting arm, and the first connecting arm and the second connecting arm are respectively provided on opposite sides of the body. Both sides, and both ends of the first connecting arm and the second connecting arm protrude from the body to form two opposite grooves on the body, and the two supporting arms of the elastic member Grooves respectively connected to the body.
An electrical connector including:

Insulating parts with receiving slots; and

The terminal structure according to any one of claims 1 to 12, wherein the retaining member of the terminal structure is inserted into the receiving groove to be connected and fastened to the insulating member.
An electronic device including the electrical connector as claimed in claim 13.