TWM608784U - Connector and structure of terminal thereof - Google Patents

Abstract

The present invention discloses a terminal structure of a connector, which includes an upper terminal assembly and a lower terminal assembly. The upper terminal assembly includes a first terminal and a second terminal. The lower terminal assembly includes a third terminal and a fourth terminal. The first terminal, the second terminal, the third terminal and the fourth terminal each include a pin, a body and an elastic arm. The width of the first body is greater than the width of the first elastic arm. The width of the second body is greater than the width of the second elastic arm. The width of the third body is greater than the width of the third elastic arm. The width of the fourth trunk is greater than the width of the fourth elastic arm. The first elastic arm and the second elastic arm are misaligned left and right. The first body and the second body overlap up and down. The third elastic arm and the fourth elastic arm are misaligned left and right. The third trunk overlaps the fourth trunk up and down.

Description

Connector and terminal structure

This creation relates to a connector and its terminal structure, in particular to a double-layer terminal structure and a connector with a double-layer terminal structure.

Connectors are electromechanical components that connect conductors or wires with appropriate counterpart components to realize circuit connection and disconnection. The connector transmits signals or current through its internal terminal structure. Currently, there are many types of connectors on the market, and the internal upper and lower terminal structures are usually single-layer terminal structures. Generally speaking, the terminal will be designed to achieve higher current and signal density as much as possible. The size of the current that the terminal can carry is positively related to the cross-sectional area of the terminal. The larger the cross-sectional area of the terminal, the greater the current that can flow.

Although the increase in the cross-sectional area of the terminal can increase the current flowing, it is under the premise of the same length. The increase in the cross-sectional area of the terminal means that the positive force generated by the terminal during the connector insertion process also increases (the positive force is positively correlated with the width and thickness of the terminal cross-section). The increase in the positive force will increase the insertion and extraction force of the connector during the insertion process, which will cause inconvenience to the user in use. And if the positive force of the terminal is too large, its fatigue life will also be adversely affected.

Therefore, how to improve the terminal structure and increase the carrying current of the terminal while maintaining a proper forward force is a problem that still needs to be solved by those skilled in the art.

The technical problem to be solved by this creation is to provide a solution for the shortcomings of the existing technology. A terminal structure of a connector includes an upper terminal assembly and a lower terminal assembly.

The upper terminal assembly includes a first terminal and a second terminal, and the first terminal is disposed above the second terminal. The first terminal includes a first pin, a first body, and a first elastic arm. The first body is connected between the first pin and the first elastic arm. The width of the first body is greater than the width of the first elastic arm. The first body has a first front end surface and a first rear end surface, the first pin is connected to the first rear end surface, and the first elastic arm is connected to the first front end surface. The second terminal includes a second pin, a second body, and a second elastic arm. The second body is connected between the second pin and the second elastic arm. The width of the second body is greater than the width of the second elastic arm. The second body has a second front end surface and a second rear end surface, the second pin is connected to the second rear end surface, and the second elastic arm is connected to the second front end surface.

The lower terminal assembly is arranged below the upper terminal assembly, the lower terminal assembly includes a third terminal and a fourth terminal, and the third terminal is arranged above the fourth terminal. The third terminal includes a third pin, a third body, and a third elastic arm. The third body is connected between the third pin and the third elastic arm. The width of the third body is greater than the width of the third elastic arm, the third body has a third front end surface and a third rear end surface, the third pin is connected to the third rear end surface, and the third elastic arm is connected to the third front end surface . The fourth terminal includes a fourth pin, a fourth body, and a fourth elastic arm. The fourth body is connected between the fourth pin and the fourth elastic arm. The width of the fourth trunk is greater than the width of the fourth elastic arm. The fourth body has a fourth front end surface and a fourth rear end surface, the fourth pin is connected to the fourth rear end surface, and the fourth elastic arm is connected to the fourth front end surface.

The first elastic arm and the second elastic arm are staggered to the left and right. The first body and the second body are arranged vertically and overlapped. The third elastic arm and the fourth elastic arm are staggered to the left and right. The third torso and the fourth torso are overlapped up and down. The first elastic arm and the fourth elastic arm are arranged symmetrically up and down. The second elastic arm and the third elastic arm are arranged symmetrically up and down.

The present invention provides a connector, which includes a housing, a signal terminal structure, and the above-mentioned terminal structure. The signal terminal structure includes a signal upper terminal and a signal lower terminal, and a signal lower terminal It is arranged below the upper terminal of the signal. The terminal structure and the signal terminal structure are arranged side by side, and the terminal structure and the signal terminal structure are partially inserted into the housing. The housing has an opening. The shell surrounds the upper terminal assembly, the lower terminal assembly, the upper signal terminal and the lower signal terminal, so that a receiving space connected with the opening is formed between the upper terminal assembly and the lower terminal assembly and between the upper signal terminal and the lower signal terminal.

One of the beneficial effects of this creation is that the connector terminal structure provided by this creation can pass through "the terminal structure includes an upper terminal assembly and a lower terminal assembly, and the lower terminal assembly is arranged below the upper terminal assembly" and "the upper terminal assembly includes The first terminal and the second terminal, the first terminal is arranged above the second terminal", "The first terminal includes a first pin, a first body, and a first elastic arm. The first body is connected to the first pin and Between the first elastic arms, the width of the first body is greater than the width of the first elastic arm. The first body has a first front end surface and a first rear end surface. The first pin is connected to the first rear end surface. The arm is connected to the first front end surface", "The second terminal includes a second pin, a second body, and a second elastic arm. The second body is connected between the second pin and the second elastic arm. The width of the second elastic arm is greater than the width of the second elastic arm. The second body has a second front end surface and a second rear end surface. The second pin is connected to the second rear end surface. The second elastic arm is connected to the second front end surface. The lower terminal assembly includes a third terminal and a fourth terminal, and the third terminal is arranged above the fourth terminal", "the third terminal includes a third pin, a third body, and a third elastic arm, and the third body is connected to Between the third leg and the third elastic arm, the width of the third body is greater than the width of the third elastic arm, the third body has a third front end surface and a third rear end surface, and the third leg is connected to the third rear On the end surface, the third elastic arm is connected to the third front end surface", "The fourth terminal includes a fourth pin, a fourth body, and a fourth elastic arm. The fourth body is connected to the fourth pin and the fourth elastic arm. In between, the width of the fourth torso is greater than the width of the fourth elastic arm, the fourth torso has a fourth front end surface and a fourth rear end surface, the fourth pin is connected to the fourth rear end surface, and the fourth elastic arm is connected to the fourth “Front end surface” and “the first elastic arm and the second elastic arm are arranged in a left and right position, and the first body and the second body are overlapped up and down. The third elastic arm and the fourth elastic arm are arranged in a left-right position, the third body part and the fourth body part are arranged to overlap up and down, the first elastic arm and the fourth elastic arm are arranged symmetrically up and down, and the second elastic arm and the third elastic arm are arranged symmetrically up and down. The technical solution of symmetrical arrangement up and down can increase the current carried by the terminal structure while maintaining the positive force within an appropriate range.

In order to further understand the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation. However, the drawings provided are only for reference and explanation, and are not used to limit this creation.

A: Connector

100: terminal structure

200: shell

300: signal terminal structure

1: Upper terminal assembly

11: The first terminal

111: first pin

112: First Body

1121: The first front face

1122: first rear end

113: First elastic arm

1131: One end of the first elastic arm

1132: The other end of the first elastic arm

114: first contact

12: second terminal

121: second pin

122: second body

1221: second front face

1222: second rear face

123: second elastic arm

1231: One end of the second elastic arm

1232: The other end of the second elastic arm

124: second contact

2: Lower terminal assembly

21: The third terminal

211: third pin

212: The Third Body

2121: third front face

2122: third rear face

213: Third elastic arm

2131: One end of the third elastic arm

2132: The other end of the third elastic arm

214: Third Contact

22: Fourth terminal

221: fourth pin

222: The Fourth Body

2221: Fourth front face

2222: fourth rear end

223: fourth elastic arm

2231: One end of the fourth elastic arm

2232: The other end of the fourth elastic arm

224: Fourth Contact

1’: Signal upper terminal

2’: Signal lower terminal

3’: opening

4’: accommodating space

FIG. 1 is a first three-dimensional schematic diagram of the terminal structure of the creative embodiment.

FIG. 2 is a second three-dimensional schematic diagram of the terminal structure of the creative embodiment.

FIG. 3 is a three-dimensional schematic diagram of the first terminal of the creative embodiment.

FIG. 4 is a three-dimensional schematic diagram of the second terminal of the creative embodiment.

FIG. 5 is a three-dimensional schematic diagram of the third terminal of the creative embodiment.

FIG. 6 is a three-dimensional schematic diagram of the fourth terminal of the creative embodiment.

FIG. 7 is a three-dimensional schematic diagram of the upper terminal assembly of the creative embodiment.

Fig. 8 is a schematic top view of the upper terminal assembly of the creative embodiment.

Fig. 9 is a three-dimensional schematic diagram of the lower terminal assembly of the creative embodiment.

FIG. 10 is a schematic top view of the lower terminal assembly of the creative embodiment.

Fig. 11 is a first three-dimensional schematic diagram of the connector of the creative embodiment.

Fig. 12 is a second three-dimensional schematic diagram of the connector of the creative embodiment.

The following is a specific specific embodiment to illustrate the "connection" disclosed in this creation And its terminal structure", those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments. The details in this specification It is also possible to make various modifications and changes based on different viewpoints and applications without departing from the concept of this creation. In addition, the drawings of this creation are only for simple schematic descriptions, not based on actual dimensions, and are stated in advance. The following implementations will The relevant technical content of this creation is further explained in detail, but the disclosed content is not intended to limit the scope of protection of this creation. In addition, it should be understood that although “first”, “second”, and “second” may be used in this article. "Third" and other terms are used to describe various elements, but these elements should not be limited by these terms. These terms are mainly used to distinguish one element from another element. In addition, the term "or" used herein should be regarded as The actual situation may include any one or more of the associated listed items. In addition, the term "or" used in this article shall, depending on the actual situation, include any one or more of the associated listed items. A combination of.

[Example]

Referring to FIG. 1 and FIG. 2, the present invention provides a terminal structure 100 of a connector. More specifically, the terminal structure 100 is a double-layer terminal structure, which includes: an upper terminal assembly 1 and a lower terminal assembly 2, and the lower terminal assembly 2 is disposed under the upper terminal assembly 1. The upper terminal assembly 1 includes a first terminal 11 and a second terminal 12, and the first terminal 11 is disposed above the second terminal 12. The lower terminal assembly 2 includes a third terminal 21 and a fourth terminal 22, and the third terminal 21 is disposed above the fourth terminal 22.

Referring to FIG. 3, the first terminal 11 includes a first pin 111, a first body 112 and a first elastic arm 113. The first body 112 is connected between the first pin 111 and the first elastic arm 113. Specifically, the first body 112 has a first front end surface 1121 and a first rear end surface 1122, the first pin 111 is connected to the first rear end surface 1122, and the first elastic arm 113 is connected to the first front end surface 1121. The number of pins is usually multiple, and in the embodiment of this creation, the first pin 111 The number is three. However, this creation is not limited to the above-mentioned examples.

Referring to FIG. 4, the second terminal 12 includes a second pin 121, a second body 122 and a second elastic arm 123. The second body 122 is connected between the second pin 121 and the second elastic arm 123. Specifically, the second body 122 has a second front end surface 1221 and a second rear end surface 1222, the second pin 121 is connected to the second rear end surface 1222, and the second elastic arm 123 is connected to the second front end surface 1221. In the embodiment of this creation, the number of the second pins 121 is three. However, this creation is not limited to the above-mentioned examples.

Referring to FIG. 5, the third terminal 21 includes a third pin 211, a third body 212 and a third elastic arm 213. The third body 212 is connected between the third pin 211 and the third elastic arm 213. Specifically, the third body 212 has a third front end surface 2121 and a third rear end surface 2122, the third pin 211 is connected to the third rear end surface 2122, and the third elastic arm 213 is connected to the third front end surface 2121. In the embodiment of the present creation, the number of the third pin 211 is three. However, this creation is not limited to the above-mentioned examples.

Referring to FIG. 6, the fourth terminal 22 includes a fourth pin 221, a fourth body 222 and a fourth elastic arm 223. The fourth trunk 222 is connected between the fourth pin 221 and the fourth elastic arm 223. Specifically, the fourth body 222 has a fourth front end surface 2221 and a fourth rear end surface 2222, the fourth pin 221 is connected to the fourth rear end surface 2222, and the fourth elastic arm 223 is connected to the fourth front end surface 2221. In the embodiment of the present creation, the number of the fourth pin 221 is three. However, this creation is not limited to the above-mentioned examples.

As shown in FIG. 7, the first body 112 and the second body 122 are overlapped up and down. One end 1131 of the first elastic arm 113 is connected to the left side of the first front end surface 1121, and one end 1231 of the second elastic arm 123 is connected to the right side of the second front end surface 1221 (not shown in FIG. 7, see FIG. 4) . In practical applications, the first elastic arm 113 and the second elastic arm 123 can be swapped left and right, that is, the first elastic arm 113 is on the right side and the second elastic arm 123 is on the left side. Therefore, the first elastic arm 113 and The second elastic arm 123 is staggered left and right. In addition, further refer to FIG. 8, which is a schematic top view of FIG. 7. The other end 1132 of the first elastic arm 113 has a first contact portion 114, the other end 1232 of the second elastic arm 123 has a second contact portion 124, and the first contact portion 114 and the second contact portion 124 are shifted back and forth. The level of the lower surface (not shown in the figure) of the first contact portion 114 and the level of the lower surface (not shown in the figure) of the second contact portion 124 are the same or one high and one low. For example, in this embodiment, the distance between the first contact portion 114 and the fulcrum (first pin 111) is longer than the distance between the first contact portion 114 and the fulcrum (second pin 121). The first contact portion 114 is lower than the second contact portion 124, so that when the mating component is inserted into the connector of this embodiment, the deformation of the first terminal 11 is greater than the deformation of the second terminal 12, and the positive force is compensated to make the first The positive force of the terminal 11 and the second terminal 12 on the mating element is approximately the same, and the contact impedance of the first terminal 11 and the second terminal 12 are approximately the same.

Referring to FIGS. 9 and 10, the third body 212 and the fourth body 222 are overlapped up and down. One end 2131 of the third elastic arm 213 is connected to the right side of the third front end surface 2121, and one end 2231 of the fourth elastic arm 223 is connected to the left side of the fourth front end surface 2221 (not shown in FIG. 9, see FIG. 6) . Similarly, in practical applications, the third elastic arm 213 and the fourth elastic arm 223 can be swapped left and right, that is, the third elastic arm 213 is on the left side and the fourth elastic arm 223 is on the right side. Therefore, the third elastic arm 213 and the fourth elastic arm 223 are arranged in a left-right position. In addition, further refer to FIG. 10, which is a schematic top view of FIG. 9. The other end 2132 of the third elastic arm 213 has a third contact portion 214, the other end 2232 of the fourth elastic arm 223 has a fourth contact portion 224, and the third contact portion 214 and the fourth contact portion 224 are shifted back and forth. The upper surface (not shown in the figure) of the third contact portion 214 and the upper surface (not shown in the figure) of the fourth contact portion 224 have the same level or one high and one low. In the same way, the positive force of the third terminal 21 and the fourth terminal 22 on the mating element can be approximately equal.

Continuing to refer to FIG. 2, in this embodiment, the first elastic arm 113 and the fourth elastic arm 223 are arranged symmetrically up and down, and the second elastic arm 123 and the third elastic arm 213 are arranged up and down symmetrically. The first contact portion 114 and the fourth contact portion 224 are symmetrical up and down, and the second contact portion 124 is symmetrical to the third contact portion. The contact portion 214 is symmetrical up and down. In practical applications, the corresponding relationship between the elastic arms can be changed without affecting the function; that is, the corresponding relationship can be that the first elastic arm 113 and the third elastic arm 213 are arranged symmetrically up and down, and the second elastic arm 123 and the fourth elastic arm 123 are arranged symmetrically up and down. The arms 223 are arranged symmetrically up and down. The first body 112, the second body 122, the third body 212, and the fourth body 222 are all L-shaped, and the first pin 111, the second pin 121, the third pin 211, and the fourth The pins 221 are arranged side by side to form a rectangle.

In this creation, the double-layer terminal structure is mainly used to conduct current, and the pins (first pin 111, second pin 121, third pin 211, and fourth pin 221) are mainly used to connect the circuit board ( Not shown), and the elastic arms (the first elastic arm 113, the second elastic arm 123, the third elastic arm 213, and the fourth elastic arm 223) pass through the contact portions (the first contact portion 114, the second contact portion 124, and the first contact portion 114). The three contact portions 214 and the fourth contact portion 224) contact external electronic components (not shown). Therefore, the transmission path of the current is from the elastic arm, the trunk (the first trunk 112, the second trunk 122, the third trunk 212, and the fourth trunk 222) to the pins, and then to the pins via the pins. Circuit board.

It should be noted that in this creation, the width of the first torso 112 is greater than the width of the first elastic arm 113. The width of the second body 122 is greater than the width of the second elastic arm 123. The width of the third body 212 is greater than the width of the third elastic arm 213. The width of the fourth trunk 222 is greater than the width of the fourth elastic arm 223. More specifically, in this creation, the height (or thickness) of the elastic arm and the trunk is the same. In other words, the width of the trunk is greater than the width of the elastic arm means that the cross-sectional area of the trunk is greater than the cross-sectional area of the elastic arm .

When the connector is connected to an appropriate counterpart component, the contact part of the elastic arm in the terminal structure is mainly used for electrical connection with the counterpart component. The elastic arm has elasticity, so when the connector is connected with the mating element, a positive force is generated at the contact portion to ensure a stable connection between the connector and the mating element. The greater the positive force, the greater the force (plugging force) required for plugging and unplugging the connector and the mating component, and the more inconvenient it is for the user to use.

Furthermore, the magnitude of the positive force will be proportional to the third power of the terminal thickness, And it is proportional to the first power of the terminal width. In other words, the positive force is more affected by the change in the thickness of the terminal, but less affected by the change in the width of the terminal.

This creation improves the design and uses the double-layer terminal structure to increase the amount of current carried. However, compared to the single-layer terminal structure in the prior art, the double-layer terminal structure of the present invention will inevitably increase the positive force. In order to maintain the positive force within an appropriate range and at the same time increase the current carried by the terminal structure, this invention uses a double-layer terminal structure to increase the cross-sectional area while maintaining the thickness of the terminal to increase the current carrying capacity. Therefore, compared with the single-layer terminal structure with increased thickness, the positive force applied to the contact portion of the elastic arm by the original double-layer terminal structure can also be maintained within a certain range.

In addition, this creation uses the arrangement of the front and back displacement of the contact part (the first contact part 114 and the second contact part 124 are displaced back and forth, and the third contact part 214 and the fourth contact part 224 are displaced back and forth) to change the position of the contact part of the elastic arm. (I.e. the contact points when the terminal shrapnel in the connector and the external counterpart component are inserted) are arranged one after the other to disperse the positive force at the same position, thereby reducing the terminal shrapnel in the connector and the external counterpart component at the same time The work required for the insertion force during insertion.

As mentioned above, the pins are mainly used to connect the circuit board so that the terminals can be fixed on the circuit board, and the way of connecting the pins to the circuit board is not limited to one. In an embodiment of the present invention, the first pin 111, the second pin 121, the third pin 211, and the fourth pin 221 are all welding parts. However, the above-mentioned example is only one of the feasible embodiments and is not intended to limit the present creation.

In another embodiment of the present invention, the first pin 111, the second pin 121, the third pin 211, and the fourth pin 221 can also be press-fit pins. The crimping element refers to the design of the pin with a fish-eye hole structure, which can cause the pin to be plastically deformed during the crimping process, thereby tightly connecting the pin to the PC circuit board.

Referring to FIG. 11, the present invention provides a connector A, which includes the above-mentioned terminal structure 100, a housing 200, and a signal terminal structure 300. The signal terminal structure 300 includes a signal upper terminal 1' And the signal lower terminal 2', and the signal lower terminal 2'is arranged below the signal upper terminal 1'. The structure of the signal upper terminal 1'and the signal lower terminal 2'has an elastic arm, a body and a pin. Since the structure of the signal terminal structure 300 is not a feature of the technical creation of the present invention, it will not be repeated here. The terminal structure 100 and the signal terminal structure 300 are arranged side by side, and the terminal structure 100 and the signal terminal structure 300 are partially inserted into the housing 200. Specifically, the elastic arms of the terminal structure 100 and the signal terminal structure 300 are inserted into the housing 200.

Refer to FIG. 12, which is another view of the connector A. The housing 200 has an opening 3'. The housing 200 surrounds the upper terminal assembly 1 and the lower terminal assembly 2 of the terminal structure 100, and the signal upper terminal 1'and the signal lower terminal 2'of the signal terminal structure 300, so that the upper terminal assembly 1 and the lower terminal assembly 2 and the signal An accommodation space 4'connected with the opening 3'is formed between the upper terminal 1'and the lower signal terminal 2'. When the connector A is mated with a matched electronic component (such as a circuit board), the electronic component will be inserted into the housing space 4'inside the housing 200 through the opening 3'of the housing 200, and further inserted into the upper terminal assembly 1 and the lower terminal assembly 2 and between the upper signal terminal 1'and the lower signal terminal 2'to establish electrical connections.

[Beneficial effects of the embodiment]

One of the beneficial effects of this creation is that the terminal structure of the connector provided by this creation can be passed through "terminal structure 100 includes upper terminal assembly 1 and lower terminal assembly 2", "upper terminal assembly 1 includes first terminal 11 and The second terminal 12", "The width of the first body 112 is greater than the width of the first elastic arm 113", "The width of the second body 122 is greater than the width of the second elastic arm 123", "The lower terminal assembly 2 includes a third The terminal 21 and the fourth terminal 22, and the third terminal 21 is arranged above the fourth terminal 22", "The width of the third body 212 is greater than the width of the third elastic arm 213", "The width of the fourth body 222 is greater than the width of the The width of the four elastic arms 223” and “the first elastic arm 113 and the second elastic arm 123 are arranged in a left-right position, the first body 112 and the second body 122 are arranged to overlap up and down, and the third elastic arm 213 and the fourth elastic arm 223 Dislocation left and right, third body 212 The first elastic arm 113 and the fourth elastic arm 223 are arranged symmetrically up and down, and the second elastic arm 123 and the third elastic arm 213 are arranged up and down symmetrically to maintain the positive force. Increase the current carried by the terminal structure within an appropriate range at the same time.

Furthermore, the present invention improves the existing single-layer terminal structure into a double-layer terminal structure. In order to prevent the positive force of the terminal structure from being too large, this creation disperses the positive force at the position of the contact portion by arranging the elastic arms on the left and right. In order to be able to effectively increase the amount of current carried by the terminal, this creation uses the structural design of the trunk up and down to increase the width of the trunk, maintaining the width of the elastic arm unchanged, and increasing the width of the trunk, making the width of the trunk larger than the elastic arm The width of, so that the positive force applied to the contact part of the elastic arm can effectively increase the amount of current carried by the terminal within a certain range.

In addition, since the terminal structure is used to carry current, the temperature rises due to the electrothermal effect. The temperature rise will accumulate as the current flows through the path, causing the body temperature of the terminal structure to be higher than the temperature of the elastic arm. In this creation, by designing the width of the trunk to be greater than the width of the elastic arm, the contact area between the trunk and the air is increased to increase the heat dissipation capacity and slow down the cumulative effect of temperature rise. In addition, the multi-pin design of this invention can disperse the terminal structure and insert the contact points of the circuit board, so that the hot spots caused by the circuit board during current transmission will not be too concentrated, and the heat transfer can be effectively improved.

The content disclosed above is only a preferred and feasible embodiment of the creation, and does not limit the scope of the patent application for this creation. Therefore, all equivalent technical changes made using this creation specification and schematic content are included in the application for this creation. Within the scope of the patent.

100: terminal structure

1: Upper terminal assembly

11: The first terminal

12: second terminal

2: Lower terminal assembly

21: The third terminal

22: Fourth terminal

Claims (10)

A terminal structure of a connector, comprising: an upper terminal assembly, comprising: a first terminal and a second terminal, the first terminal is arranged above the second terminal, and the first terminal includes a plurality of first terminals A leg, a first body, and a first elastic arm, the first body is connected between the first leg and the first elastic arm, and the width of the first body is larger than the The width of the first elastic arm, the first body has a first front end surface and a first rear end surface, a plurality of the first pins are connected to the first rear end surface, and the first elastic arm is connected to The first front end surface, the second terminal includes a plurality of second pins, a second body, and a second elastic arm, and the second body is connected to the second pins and the first Between the two elastic arms, the width of the second body is greater than the width of the second elastic arm, the second body has a second front end surface and a second rear end surface, and a plurality of the second pins are connected On the second rear end surface, the second elastic arm is connected to the second front end surface; and a lower terminal assembly is arranged below the upper terminal assembly. The lower terminal assembly includes: a third terminal and a A fourth terminal, the third terminal is arranged above the fourth terminal, the third terminal includes a plurality of third pins, a third body, and a third elastic arm, and the third body is connected Between the third leg and the third elastic arm, the width of the third body is greater than the width of the third elastic arm, and the third body has a third front end surface and a third rear On the end surface, a plurality of the third pins are connected to the third rear end surface, the third elastic arm is connected to the third front end surface, and the fourth terminal includes a plurality of fourth pins, a fourth The trunk and a fourth elastic arm, the fourth trunk is connected between the fourth leg and the fourth elastic arm, and the width of the fourth trunk is greater than the width of the fourth elastic arm , The fourth body has a fourth front end surface and a fourth rear end surface, and a plurality of the fourth pins are connected On the fourth rear end surface, the fourth elastic arm is connected to the fourth front end surface; wherein, the first elastic arm and the second elastic arm are arranged in a left-right position, and the first body and The second body is arranged vertically and overlapped, the third elastic arm and the fourth elastic arm are arranged in a left-right position, and the third body and the fourth body are arranged vertically and overlapped, the first elastic The arm and the fourth elastic arm are arranged symmetrically up and down, and the second elastic arm and the third elastic arm are arranged up and down symmetrically. The terminal structure according to claim 1, wherein the first elastic arm has a first contact portion, the second elastic arm has a second contact portion, and the third elastic arm has a third contact portion , The fourth elastic arm has a fourth contact portion. The terminal structure according to claim 2, wherein the first contact portion and the fourth contact portion are vertically symmetrical, the second contact portion and the third contact portion are vertically symmetrical, and the first contact portion The second contact portion is shifted back and forth, and the third contact portion is shifted back and forth from the fourth contact portion. The terminal structure according to claim 2, wherein the level of the lower surface of the first contact portion and the level of the lower surface of the second contact portion are one high and one low. The terminal structure according to claim 2, wherein the level of an upper surface of the third contact portion and the level of an upper surface of the fourth contact portion are one high and one low. The terminal structure according to claim 1, wherein the first body, the second body, the third body, and the fourth body are all L-shaped. The terminal structure according to claim 1, wherein a plurality of the first pins, a plurality of the second pins, a plurality of the third pins, and a plurality of the fourth pins are arranged side by side . The terminal structure according to claim 1, wherein the plurality of first pins, the plurality of second pins, the plurality of third pins, and the plurality of fourth pins are all pressed接件。 Connected pieces. The terminal structure according to claim 1, wherein the plurality of first pins, the plurality of second pins, the plurality of third pins, and the plurality of fourth pins are all soldered Pieces. A connector includes: a housing; a signal terminal structure, including: a signal upper terminal and a signal lower terminal, the signal lower terminal is arranged below the signal upper terminal; and any of the request items 1 to 9 One item of the terminal structure, the terminal structure and the signal terminal structure are arranged side by side, and the terminal structure and the signal terminal structure are partially inserted into the housing; wherein the housing has an opening , The housing surrounds the upper terminal assembly, the lower terminal assembly, the signal upper terminal, and the signal lower terminal, so that between the upper terminal assembly and the lower terminal assembly and the signal upper terminal An accommodating space communicating with the opening is formed between the terminal and the signal lower terminal.

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