Connection terminal and connector assembly

Abstract

The present disclosure provides a connection terminal comprising a first connection part and a second connection part. The first connection part comprises a receiving hole arranged inside the body thereof. The receiving hole extends axially along a first direction and forms a passage allowing a counterpart terminal to be inserted thereinto along the first direction to achieve a plug-in connection. The second connection part comprises a receiving groove extending along a second direction for receiving a cable to achieve a crimping connection. The first direction is not parallel to the second direction. Since the axial extension direction of the receiving hole and the extension direction of the receiving groove in the connection terminal form a specific angle, the extension direction of the counterpart terminal also forms a specific angle with the running direction of the cable, thereby saving the space occupied by the connector in the height direction. Furthermore, the present disclosure also provides a connector assembly.

Description

Technical Field

[0001] This disclosure relates to the field of electronic connection accessories, and more specifically to a connection terminal and a connector assembly suitable for low-height spaces. Background Technology

[0002] Terminal blocks are electrical accessories designed to facilitate wire connections. One end connects to the terminal block on an electronic product, while the other end connects to a wire for electrical transmission. As electronic devices shrink in size and increase in functionality, connectors like terminal blocks need to become smaller to fit into more compact designs. For example, some electronic products have limited internal height. If conventional terminal blocks are used to connect terminal blocks and wires, their excessive height will interfere with the product's casing. Therefore, there is a need for terminal blocks suitable for low-height spaces, which should occupy minimal space in the vertical direction. Summary of the Invention

[0003] To address the aforementioned technical problems, a first aspect of this disclosure provides a connecting terminal. The connecting terminal includes a first connecting portion and a second connecting portion. The first connecting portion includes a receiving hole disposed within its body, the receiving hole extending axially along a first direction and forming a channel, the receiving hole allowing a mating terminal to be inserted therein along the first direction for mating. The second connecting portion is connected to the first connecting portion, and the second connecting portion includes a receiving groove extending along a second direction for receiving a cable for crimping. The first direction is not parallel to the second direction.

[0004] Because the axial extension direction of the receiving hole in the connector terminal is at a specific angle to the extension direction of the receiving groove, the extension direction of the mating terminal is also at a specific angle to the cable routing, thereby saving space occupied by the connector in the height direction.

[0005] In one embodiment, the first direction and the second direction form an angle between 60° and 120°.

[0006] In one embodiment, the first direction and the second direction form an angle between 75° and 105°.

[0007] In one embodiment, the receiving groove is a U-shaped groove including side wings extending outward from both sides, the side wings being used to crimp and fix the cable within the U-shaped groove.

[0008] In one embodiment, the body of the first connection portion includes a peripheral wall, and the receiving hole is formed by the peripheral wall.

[0009] In one embodiment, the first connection portion further includes one or more first elastic arms disposed on the peripheral wall and extending toward the interior of the channel, which are used to make electrical contact with the mating terminal.

[0010] In one embodiment, the first connection portion further includes one or more second elastic arms disposed on the peripheral wall and extending toward the interior of the channel, distributed relative to the first elastic arm along the first direction, and also used to make electrical contact with the mating terminal.

[0011] In one embodiment, the peripheral wall includes a first wall and a second wall opposite to the first wall, and the first elastic arm is disposed on the first wall and the second wall.

[0012] In one embodiment, the second elastic arm is disposed on the first wall and the second wall.

[0013] In one embodiment, the first connecting portion further includes a rib plate disposed on the peripheral wall, the rib plate protruding toward the interior of the channel, and the rib plate contacting the mating terminal when the mating terminal is inserted into the receiving hole.

[0014] In one embodiment, the peripheral wall includes a third wall and a fourth wall opposite to the third wall, and the rib is disposed on the third wall and the fourth wall.

[0015] In one embodiment, the body of the first connecting portion includes a flat plate, and the receiving hole is a through hole disposed on the flat plate.

[0016] In one embodiment, the first connection portion further includes a plurality of third elastic arms disposed on two opposite edges of the hole and extending into the hole for electrical contact with the mating terminal.

[0017] In one embodiment, the first connection portion further includes a plurality of fourth elastic arms disposed on two other opposite edges of the hole and extending into the hole for electrical contact with the mating terminal.

[0018] In one embodiment, the second connecting portion is fixedly connected to any point on the outer edge of the flat plate.

[0019] A second aspect of this disclosure provides a connector assembly comprising: the aforementioned connecting terminal and the mating terminal, each including a recess disposed on its outer edge. Wherein, when the mating terminal is inserted into the connecting terminal, the rib of the connecting terminal is at least partially embedded in the recess.

[0020] A third aspect of this disclosure provides a connector assembly comprising: the aforementioned connecting terminals and the mating terminals.

[0021] In one embodiment, the mating terminal includes a first recess disposed on its outer edge, wherein when the mating terminal is inserted into the connecting terminal, one of the resilient arms of the connecting terminal is embedded in the first recess.

[0022] In one embodiment, the mating terminal further includes a second recess disposed on the outer edge of its body, the second recess being opposite to the first recess, wherein when the mating terminal is inserted into the connecting terminal, another elastic arm of the connecting terminal is embedded in the second recess.

[0023] In one embodiment, the mating terminal further includes a third recess and a fourth recess disposed on the outer edge of its body, the third recess being opposite to the fourth recess, wherein when the mating terminal is inserted into the connecting terminal, the two elastic arms of the connecting terminal are respectively embedded in the third recess and the fourth recess. Attached Figure Description

[0024] Features, advantages, and other aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description, in which several embodiments of the disclosure are illustrated by way of example and not limitation, in the drawings:

[0025] Figure 1 A schematic diagram of the connector assembly according to a first embodiment of the present disclosure is shown.

[0026] Figure 2 A top view of a connection terminal according to a first embodiment of the present disclosure is shown.

[0027] Figure 3 A schematic diagram of the structure of a connection terminal according to a first embodiment of the present disclosure is shown.

[0028] Figure 4 A top view of a connection terminal according to another embodiment of the present disclosure is shown.

[0029] Figure 5 A schematic diagram of the connector assembly according to a first embodiment of the present disclosure is shown from another perspective.

[0030] Figure 6 It shows along Figure 5 The cross-sectional view after cutting along line AA.

[0031] Figure 7 A schematic diagram of the connection terminal according to a second embodiment of the present disclosure is shown.

[0032] Figure 8 A schematic diagram of the structure of a connection terminal according to another embodiment of the present disclosure is shown.

[0033] Figure 9 A top view of two example connection terminals according to this disclosure is shown.

[0034] Figure 10 A schematic diagram of multiple mating terminals is shown.

[0035] Figure 11 It shows along Figure 9 The cross-sectional view after cutting line BB.

[0036] Figure 12 It shows along Figure 9 The cross-sectional view after cutting along line CC. Detailed Implementation

[0037] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation thereof.

[0038] It should be understood that the specific embodiments discussed are merely illustrative of particular ways of implementing and using the invention, and are not intended to limit the scope of the invention. The terms used in describing the various components, such as top, bottom, left, right, top, and bottom, are not absolute but relative. These terms are appropriate when the components are arranged as shown in the figures, but will change accordingly when the positions of the components in the figures change.

[0039] The terms “comprising,” “including,” and similar terms used herein should be understood as open-ended terms, meaning “including / including but not limited to,” implying that other content may also be included. The term “based on” means “at least partially based on.” The term “one embodiment” means “at least one embodiment”; the term “another embodiment” means “at least one additional embodiment,” and so on.

[0040] As described in the background section of this disclosure, there is a need for a connector terminal with a small dimension in the height direction, which can be used in electronic products with limited internal height space. Based on this, this disclosure proposes a connector terminal including a first connecting portion for mating with a mating terminal and a second connecting portion for crimping with a cable. The first connecting portion has a receiving hole for receiving the mating terminal, the receiving hole extending axially along a first direction. The second connecting portion has a receiving groove for receiving the cable, the receiving groove extending along a second direction. The first and second directions form a specific angle, which causes the extension direction of the mating terminal to also form a specific angle with the cable's direction, thereby saving space occupied by the connector in the height direction. Various embodiments of this connector terminal will be described below.

[0041] First Embodiment

[0042] Figure 1 A schematic diagram of a connector assembly according to a first embodiment of the present disclosure is shown. The connector assembly 10 includes a connecting terminal 20 and a mating terminal 30. The connecting terminal 20 includes a first connecting portion 21 and a second connecting portion 22. The first connecting portion 21 includes a receiving hole 210 disposed within its body. The receiving hole 210 extends axially along a first direction a and forms a channel, allowing the mating terminal 30 to be inserted therein along the first direction a for mating. The second connecting portion 22 is connected to the first connecting portion 21 and includes a receiving groove 220 extending along a second direction b. The receiving groove 220 is used to receive a cable (not shown) for crimping. For example, a cable can be inserted into the receiving groove 220 along the second direction b for crimping. The first direction a is not parallel to the second direction b.

[0043] The mating terminal 30 is adapted to make an electrical connection with the connecting terminal 20, and can be, for example, a pin installed inside an electronic product. Pins can be classified by shape, such as round pins, square pins, and irregularly shaped pins. A common use case is to insert pins at a near-vertical angle onto a PCB board to transmit electrical signals, while the PCB board is typically mounted horizontally inside the electronic product. Therefore, as... Figure 1 As shown, this disclosure considers the extension direction of the connector 30 as the "height direction" mentioned in the background art. Furthermore, the cable mentioned in this disclosure can be a metal wire cable wrapped with an insulating sheath. In use, the insulating sheath of the cable must first be peeled off to expose the internal metal wire, and then the metal wire is placed into the receiving slot 220 of the connector 20 and crimped and secured.

[0044] Optionally, the first direction a and the second direction b form an angle, which can be between 60° and 120°. Preferably, the angle can be between 75° and 105°. In the corresponding figures of this embodiment, the first direction a and the second direction b form a 90° angle. Because the first direction a and the second direction b form an angle, the terminal 20 occupies only a small space in the height direction, making it convenient for use in electronic products with limited internal space.

[0045] refer to Figure 1 The receiving groove 220 of the second connecting portion 22 may be a U-shaped groove including a first pair of side wings 221 extending outward from both sides thereon. The first pair of side wings 221 are used to crimp and fix the cable in the U-shaped groove. Optionally, the second connecting portion 22 may also include a second pair of side wings 222 disposed behind the first pair of side wings 221, which are also used for fixing and crimping the cable.

[0046] In the first embodiment, the body of the first connecting part 21 includes a peripheral wall 211, and the receiving hole 210 is formed by surrounding the peripheral wall 211. Figure 2 A top view of the connection terminal according to a first embodiment of the present disclosure is shown. It can be seen that the peripheral wall 211 of the receiving hole 210 includes a front wall, a rear wall, a left side wall, and a right side wall. In other examples, the peripheral wall 211 of the receiving hole 210 may be a circular or elliptical circumferential wall, or any other polygonal wall, etc.

[0047] Figure 3 A schematic diagram of the connection terminal according to a first embodiment of the present disclosure is shown. The first connection portion 21 of the connection terminal 20 further includes one or more first elastic arms 212. The first elastic arms 212 are disposed on the peripheral wall 211 and extend toward the interior of the channel, with one end fixed to the peripheral wall 211 and the other end suspended, for making electrical contact with the mating terminal 30. The first elastic arms 212 inside the receiving hole 210 provide multiple electrical contact points to the mating terminal 30, making the connection terminal 20 suitable for high-current electrical applications. Further, refer to... Figure 3In the enlarged view, the extension direction c of the first elastic arm 212 is between the first direction a and the inner radial direction d of the hole. The inner radial direction d refers to the direction from the location of the first elastic arm 212 towards the center of the hole 210. The first elastic arm 212 with this direction guides the mating terminal 30 into the receiving hole 210 along the first direction a, while preventing the mating terminal 30 from leaving the receiving hole 210 in the opposite direction of the first direction a, thereby increasing the holding force of the connecting terminal 20 on the mating terminal 30. If the electronic product containing the mating terminal 30 will be used in a harsh environment (e.g., frequent vibration), a larger number of first elastic arms 212 can be used. If the user desires a lower insertion and extraction force when connecting the connecting terminal 20 to the mating terminal 30, a smaller number of first elastic arms 212 can be used. Furthermore, if the user inserts the mating terminal 30 into the receiving hole 210 in the opposite direction of the first direction a during use, the first elastic arm 212 with this direction will prevent reverse insertion of the mating terminal 30, avoiding incorrect use by the user and thus providing a foolproof effect.

[0048] Continue to refer to Figure 3 Optionally, the first connecting portion 21 further includes one or more second elastic arms 213. The second elastic arms 213 are disposed on the peripheral wall 211 and extend toward the interior of the channel, with one end fixed to the peripheral wall 211 and the other end suspended. The second elastic arms 213 are distributed relative to the first elastic arms 212 along a first direction a, and are also used to achieve electrical contact with the mating terminal 30. The extending direction c of the second elastic arms 213 can be between the first direction a and the inner radial direction d of the hole. The inner radial direction d mentioned here refers to the direction from the location of the second elastic arms 213 toward the center of the hole 210. It is readily understood that the second elastic arms 213 provide more electrical contact points to the mating terminal 30, increasing the holding force of the connecting terminal 20 on the mating terminal 30 and increasing the current allowed to pass through the connecting terminal 20.

[0049] refer to Figure 2 The aforementioned peripheral wall 211 includes a first wall 211a (e.g., front wall), a second wall 211b (e.g., rear wall), a third wall 211c (e.g., left side wall), and a fourth wall 211d (e.g., right side wall), wherein the second wall 211b is opposite to the first wall 211a, and the fourth wall 211d is opposite to the third wall 211c. Figure 4 A top view of a connection terminal according to another embodiment of the present disclosure is shown. (Reference) Figure 2 as well as Figure 4It can be observed that the first elastic arm 212 can be provided only on the first wall 211a, or the first elastic arm 212 can be provided on both the first wall 211a and the second wall 211b. Similarly, the second elastic arm 213 can also be provided on both the first wall 211a and the second wall 211b. The connection terminal 20 with elastic arms on both the first wall 211a and the second wall 211b can more effectively prevent the mating terminal 30 from exiting the receiving hole 210.

[0050] Figure 5 A schematic diagram of the connector assembly according to a first embodiment of the present disclosure is shown from another perspective. Optionally, the first connecting portion 21 of the connecting terminal 20 further includes a rib 214 disposed on the peripheral wall 211, both ends of which are fixed to the peripheral wall 211. The rib 214 protrudes toward the interior of the channel. Figure 6 It shows along Figure 5 The image shows a cross-sectional view taken along line AA. When the mating terminal 30 is inserted into the receiving hole 210, the rib 214 contacts the mating terminal 30. In this embodiment, the rib 214 is disposed on the third wall 211c and the opposite fourth wall 211d. During the insertion of the mating terminal 30 into the receiving hole 210, the ribs 214 on both sides clamp the mating terminal 30 inwards, further locking the mating terminal 30 inside the connecting terminal 20. Of course, in other embodiments, the rib 214 may only be disposed on the third wall 211c or the fourth wall 211d.

[0051] The mating terminal 30 suitable for connecting terminal 20 can be a pin of various shapes, such as those described above. The mating terminal 30 may have a conventional smooth outer edge, or it may have features on its outer edge such as... Figure 6 The recessed portion 301 is shown. (As shown in the image) Figure 6 After the mating terminal 30 is inserted into the connecting terminal 20, the rib 214 of the connecting terminal 20 engages with the recess 301 of the mating terminal 30, resulting in a tighter fit between the mating terminal 30 and the connecting terminal 20. Based on this, the present disclosure also proposes a connector assembly 10, which includes the aforementioned connecting terminal 20 and mating terminal 30, wherein the mating terminal 30 includes a recess 301 disposed on its outer edge. When the mating terminal 30 is inserted into the connecting terminal 20, the rib 214 of the connecting terminal 20 is at least partially embedded in the recess 301.

[0052] Second Embodiment

[0053] Figure 7A schematic diagram of the connection terminal according to a second embodiment of the present disclosure is shown. Similarly, the connection terminal 40 includes a first connection portion 41 and a second connection portion 42. The first connection portion 41 includes a receiving hole 410 disposed within its body, which extends axially along a first direction a' and forms a channel. The receiving hole 410 allows a mating terminal 30 to be inserted therein along the first direction a' for mating. The second connection portion 42 is connected to the first connection portion 41. The second connection portion 42 includes a receiving groove 420 extending along a second direction b' for receiving a cable for crimping. For example, a cable can be placed into the receiving groove 420 along the second direction b' for crimping. The first direction a' is not parallel to the second direction b'. The angle formed between the first direction a' and the second direction b' is optionally between 60° and 120°, preferably between 75° and 105°. In the corresponding figures of this embodiment, the first direction a' and the second direction b' form a 90° angle.

[0054] The second embodiment differs from the first embodiment in that the body of the first connecting part 41 includes a flat plate 411, and the receiving hole 410 is a through hole provided on the flat plate 411. Figure 8 A schematic diagram of a connection terminal according to another embodiment of the present disclosure is shown. (Refer to...) Figure 7 and Figure 8 It can be seen that the through hole on the plate 411 can be any shape of hole that matches the shape of the mating terminal 30, such as a round hole, a square hole, etc. Figure 9 A top view of two example connection terminals according to this disclosure is shown. Reference Figure 9 The second connecting part 42 can be fixedly connected to any point on the outer edge of the plate 411. Therefore, the connecting terminal 40 can adjust the position of the second connecting part 42 according to the user's needs. When it is used in electronic products, the connecting terminal 40 can allow the cable to exit in any direction.

[0055] refer to Figure 7 The first connecting portion 41 also includes a plurality of third elastic arms 412, which are disposed on two opposite edges of the hole 410 and extend toward the inside of the hole, for making electrical contact with the mating terminal 30. One end of the third elastic arm 412 is fixed to the plate 411, and the other end is suspended. The extension direction c' of the third elastic arm 412 can be between the first direction a' and the inner radial direction d' of the hole. The inner radial direction d' mentioned here refers to the direction from the location of the third elastic arm 412 toward the center of the hole 410.

[0056] In this embodiment, hole 410 can be a square hole. Additionally, refer to... Figure 7The first connecting portion 41 also includes a plurality of fourth elastic arms 413, which are disposed on two other opposite edges of the hole 410 and extend toward the hole, and are also used to make electrical contact with the mating terminal 30.

[0057] Furthermore, this disclosure also proposes a connector assembly including a connecting terminal and a mating terminal. The connecting terminal can be the connecting terminal 20 in the first embodiment or the connecting terminal 40 in the second embodiment. Figure 10 Several examples of mating terminals are provided. For example, the mating terminals of this connector assembly can be conventional terminals 31 with smooth outer edges.

[0058] In another example, the mating terminal of the connector assembly may also be a terminal 32, which includes a first recess 321 disposed on the outer edge of its body. Figure 11 It shows along Figure 9 The image shows a cross-sectional view of line BB after it has been cut open. After the mating terminal 32 is inserted into the receiving hole 410, the end of the fourth elastic arm 413 around the receiving hole 410 enters into the first recess 321 on the outer edge of the mating terminal 32, thereby locking the mating terminal 32 in the connecting terminal 40. It is readily understood that when the mating terminal 32 with the first recess 321 is inserted into the connecting terminal 20 in the first embodiment, the end of the elastic arm (e.g., the first elastic arm 212 or the second elastic arm 213) can also enter into the first recess 321 of the mating terminal 32, thereby locking the mating terminal 32 in the connecting terminal 20 of the first embodiment. Based on this, the present disclosure also proposes a connector assembly including the above-described connecting terminal and the mating terminal 32, the mating terminal 32 including a first recess 321 disposed on its outer edge. Wherein, when the mating terminal 32 is inserted into the connecting terminal, one elastic arm of the connecting terminal is embedded in the first recess 321. Additionally or optionally, the mating terminal 32 further includes a second recess 322 disposed on its outer edge, the second recess 322 being opposite to the first recess 321, wherein, when the mating terminal 32 is inserted into the connecting terminal, another elastic arm of the connecting terminal is embedded in the second recess 322. (See reference) Figure 11 In this embodiment, when the mating terminal 32 is inserted into the connecting terminal 40, the two fourth elastic arms 413 of the connecting terminal 40 are embedded in the first recess 321 and the second recess 322.

[0059] In another example, the mating terminals of the connector assembly can also be terminals 33, which include a first recess 331, a second recess 333, a third recess 333, and a fourth recess 334 disposed on the outer edge of its body. The second recess is opposite to the first recess 331, and the fourth recess 334 is opposite to the third recess 333. Figure 12 It shows along Figure 9The cross-sectional view after the line CC is cut open. After the mating terminal 33 is inserted into the connecting terminal 40, the two third elastic arms 412 of the connecting terminal 40 are respectively embedded in the third recess 333 and the fourth recess 334, so that the mating terminal 33 is locked in the connecting terminal 40.

[0060] The foregoing discussion is merely a disclosure and description of exemplary embodiments of the present invention. Through these discussions, the accompanying drawings, and the claims, those skilled in the art will readily recognize that various changes, modifications, and variations can be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A connecting terminal, characterized in that, include: A first connecting portion includes a receiving hole disposed inside its body, the receiving hole extending axially along a first direction and forming a channel, the receiving hole allowing a mating terminal to be inserted therein along the first direction for mating. A second connecting portion is connected to the first connecting portion, the second connecting portion including a receiving groove extending in a second direction for receiving a cable to achieve crimping; Wherein, the first direction is not parallel to the second direction.

2. The connection terminal according to claim 1, characterized in that, The first direction and the second direction form an angle, which is between 60° and 120°.

3. The connection terminal according to claim 1, characterized in that, The first direction and the second direction form an angle, which is between 75° and 105°.

4. The connection terminal according to claim 1, characterized in that, The receiving slot is a U-shaped slot including side wings extending outward from both sides, the side wings being used to crimp and fix the cable within the U-shaped slot.

5. The connection terminal according to claim 1, characterized in that, The body of the first connecting portion includes a peripheral wall, and the receiving hole is formed by the peripheral wall.

6. The connecting terminal according to claim 5, characterized in that, The first connection portion further includes one or more first elastic arms, which are disposed on the peripheral wall and extend toward the interior of the channel for making electrical contact with the mating terminal.

7. The connecting terminal according to claim 6, characterized in that, The first connection portion further includes one or more second elastic arms, which are disposed on the peripheral wall and extend toward the interior of the channel. They are distributed relative to the first elastic arm along the first direction and are also used to make electrical contact with the mating terminal.

8. The connecting terminal according to claim 7, characterized in that, The peripheral wall includes a first wall and a second wall opposite to the first wall, and the first elastic arm is disposed on the first wall and the second wall.

9. The connecting terminal according to claim 8, characterized in that, The second elastic arm is disposed on the first wall and the second wall.

10. The connecting terminal according to claim 5, characterized in that, The first connecting portion further includes a rib plate disposed on the peripheral wall, the rib plate protruding towards the interior of the channel, and the rib plate contacting the mating terminal when the mating terminal is inserted into the receiving hole.

11. The connection terminal according to claim 10, characterized in that, The peripheral wall includes a third wall and a fourth wall opposite to the third wall, and the rib is disposed on the third wall and the fourth wall.

12. The connection terminal according to claim 1, characterized in that, The body of the first connecting part includes a flat plate, and the receiving hole is a through hole provided on the flat plate.

13. The connection terminal according to claim 12, characterized in that, The first connecting portion further includes a plurality of third elastic arms, which are disposed on two opposite edges of the hole and extend into the hole for electrical contact with the mating terminal.

14. The connecting terminal according to claim 13, characterized in that, The first connecting portion further includes a plurality of fourth elastic arms, which are disposed on two other opposite edges of the hole and extend into the hole for electrical contact with the mating terminal.

15. The connecting terminal according to claim 12, characterized in that, The second connecting part is fixedly connected to any point on the outer edge of the plate.

16. A connector assembly, characterized in that, include: The connection terminal as described in claim 10 or 11; as well as The mating terminal includes a recessed portion disposed on the outer edge of its body; When the mating terminal is inserted into the connecting terminal, the rib of the connecting terminal is at least partially embedded in the recess.

17. A connector assembly, characterized in that, include: The connection terminal as described in any one of claims 6-9 and 13-14; as well as The mating terminals.

18. The connector assembly according to claim 17, characterized in that, The mating terminal includes a first recess on its outer edge, wherein when the mating terminal is inserted into the connecting terminal, one of the elastic arms of the connecting terminal is embedded in the first recess.

19. The connector assembly according to claim 18, characterized in that, The mating terminal further includes a second recessed portion disposed on the outer edge of its body, the second recessed portion being opposite to the first recessed portion, wherein, when the mating terminal is inserted into the connecting terminal, the other elastic arm of the connecting terminal is embedded in the second recessed portion.

20. The connector assembly according to claim 19, characterized in that, The mating terminal further includes a third recess and a fourth recess disposed on the outer edge of its body, the third recess being opposite to the fourth recess, wherein when the mating terminal is inserted into the connecting terminal, the two elastic arms of the connecting terminal are respectively embedded in the third recess and the fourth recess.

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