Terminal, electrical connection module and connector

Abstract

The utility model discloses a terminal, an electric connection module and a connector. The terminal comprises a matching part which is used for being matched with a matching terminal and is provided with a front end part and a rear end part; and the primary locking elastic sheet is used for being locked in the shell of the connector. The front end part of the matching part comprises a front annular part and a rear annular part, wherein the front annular part comprises a first top wall, a first bottom wall and a pair of first side walls; the front reinforcing part is used for enhancing the structural strength of the front annular part and comprises a first bottom plate, a first side plate and a first joint plate, and the first side plate and the first joint plate are located on the two sides of the first bottom plate. The root of the primary locking elastic piece is connected with the rear side of the first top wall, the first bottom plate abuts against the outer side of the first bottom wall, the first side plate abuts against the outer side of one first side wall and is connected with the first top wall, and the first joint plate is jointed with the other first side wall. According to the utility model, the front end part and the rear end part of the matching part of the terminal are provided with the reinforcing structures, so that the structural strength of the matching part is improved, and the terminal can be ensured to be reliably locked in the shell.

Description

Technical Field

[0001] The utility model relates to a terminal, including an electrical connection module of the terminal and an electrical connector including the electrical connection module. Background Art

[0002] In the prior art, a primary locking spring piece is formed on the terminal of the connector, and the primary locking spring piece is locked in the housing of the connector to lock the terminal in the housing. The primary locking spring piece is connected to the front end portion of the terminal and extends obliquely upward and backward. The front end portion of the existing terminal is a single-layer annular structure, and its strength is poor, which causes the primary locking spring piece to easily disengage from the housing. In addition, in the prior art, a secondary lock installed in the housing abuts against the rear end face of the mating portion of the terminal to further lock the terminal in the housing. The rear end of the existing mating portion is a single-layer annular structure, and its strength is poor and it is prone to deformation, which also causes the terminal to easily disengage from the secondary lock. In addition, in the prior art, the terminal of the connector usually has only a single cantilever and a single electrical contact formed on the single cantilever, which results in unstable and unreliable electrical contact between the terminal of the connector and the terminal of the mating connector. Summary of the Utility Model

[0003] The purpose of the utility model aims to solve at least one of the above problems and defects existing in the prior art.

[0004] According to one aspect of the utility model, a terminal is provided. The terminal includes: a mating portion for mating with a mating terminal and having a front end portion and a rear end portion opposite to each other in its longitudinal direction; and a primary locking spring piece extending obliquely backward and upward from the front end portion of the mating portion for being locked into the housing of the connector to lock the terminal in the housing. The front end portion of the mating portion includes: a front annular portion including a first top wall, a first bottom wall and a pair of first side walls; and a front reinforcing portion for enhancing the structural strength of the front annular portion and including a first bottom plate and first side plates and first joint plates located on both sides of the first bottom plate. The root of the primary locking spring piece is connected to the rear side of the first top wall, the first bottom plate abuts against the outside of the first bottom wall, the first side plate abuts against the outside of one of the first side walls and is connected to the first top wall, and the first joint plate is joined to the other first side wall.

[0005] According to an exemplary embodiment of the utility model, the front reinforcing portion is U-shaped, and the upper side of the first side plate is connected to the side edge of the first top wall; a first joint groove is formed on the other first side wall, and the first joint plate is joined to the first joint groove on the other first side wall.

[0006] According to another exemplary embodiment of the utility model, the first joint plate and the first joint groove on the other first side wall are L-shaped, T-shaped or Ω-shaped.

[0007] According to another exemplary embodiment of the present utility model, the rear end portion of the mating portion includes: a rear annular portion, including a second top wall, a second bottom wall, and a pair of second side walls; and a rear reinforcing portion for enhancing the structural strength of the rear annular portion and including a second bottom plate, and second side plates and second joining plates respectively located on both sides of the second bottom plate. The rear side of the second top wall is used to abut against the secondary lock of the connector to lock the terminal in the housing, the second bottom plate abuts against the outer side of the second bottom wall, the second side plate abuts against the outer side of one second side wall and is connected to the second top wall, and the second joining plate is joined to the other second side wall.

[0008] According to another exemplary embodiment of the present utility model, the rear reinforcing portion is U-shaped, and the upper side of the second side plate is connected to the side edge of the second top wall; a second joining groove is formed on the other second side wall, and the second joining plate is joined to the second joining groove on the other second side wall.

[0009] According to another exemplary embodiment of the present utility model, the second joining plate and the second joining groove on the other second side wall are L-shaped, T-shaped, or Ω-shaped.

[0010] According to another exemplary embodiment of the present utility model, the mating portion of the terminal further includes: a main body portion extending along the longitudinal direction of the terminal and connected between the front annular portion and the rear annular portion; and a reinforcing plate extending along the longitudinal direction of the terminal and connected between the first bottom plate and the second bottom plate, the cross section of the main body portion is U-shaped with an open top, and the reinforcing plate abuts against the bottom of the main body portion.

[0011] According to another exemplary embodiment of the present utility model, the mating portion of the terminal has an insertion cavity extending along the longitudinal direction of the terminal for allowing the mating terminal to be inserted and includes a first cantilever located in the insertion cavity, the first cantilever has a plurality of raised first electrical contacts, and the plurality of first electrical contacts are spaced apart from each other in the longitudinal direction for simultaneously making electrical contact with one side of the mating terminal inserted into the insertion cavity.

[0012] According to another exemplary embodiment of the present utility model, the mating portion of the terminal further includes a second cantilever located in the insertion cavity, the first cantilever and the second cantilever are spaced opposite to each other in the height direction of the mating portion, the second cantilever has a plurality of raised second electrical contacts, and the plurality of second electrical contacts are spaced apart from each other in the longitudinal direction for simultaneously making electrical contact with the other side of the mating terminal inserted into the insertion cavity.

[0013] According to another exemplary embodiment of the present utility model, the fixed end of the first cantilever is connected to the upper side edge of the one first side wall and abuts against the inner side of the first top wall, and the first cantilever has a first free end that abuts against the inner side of the second top wall; the root of the second cantilever is connected to the rear side of the first bottom wall, and the second cantilever has a second free end that abuts against the inner side of the second bottom plate.

[0014] According to another exemplary embodiment of the present utility model, a plurality of first electrical contacts on the first cantilever and a plurality of second electrical contacts on the second cantilever correspond to each other and are respectively aligned in the height direction.

[0015] According to another exemplary embodiment of the present utility model, the mating portion of the terminal further includes: a guiding plate, which extends along the longitudinal direction of the terminal and is perpendicular to the transverse direction of the terminal, and the guiding plate is located on one side in the transverse direction of the mating portion and is used to cooperate with a guiding groove on the housing to guide the terminal to be inserted into the housing in a correct orientation.

[0016] According to another exemplary embodiment of the present utility model, the guiding plate is located above the first top wall and the second top wall, the lower side of the front end of the guiding plate is connected to the first top wall, and the lower side of the rear end of the guiding plate is connected to the second top wall.

[0017] According to another exemplary embodiment of the present utility model, the terminal further includes: a crimping portion, which is used to be crimped to a cable, and the crimping portion is connected to the rear side of the rear annular portion of the mating portion and extends rearward from the rear annular portion.

[0018] According to another exemplary embodiment of the present utility model, the crimping portion includes: a first crimping portion, which is used to be crimped to the conductor core of the cable; and a second crimping portion, which is used to be crimped to the outer covering of the cable, and the first crimping portion is located between the mating portion and the second crimping portion.

[0019] According to another exemplary embodiment of the present utility model, the terminal is an integrally stamped part.

[0020] According to another aspect of the present utility model, there is provided an electrical connection module. The electrical connection module includes: the aforementioned terminal; and a cable, one end of which is electrically connected to the terminal.

[0021] According to another aspect of the present utility model, a connector is provided. The connector includes: a housing having terminal jacks extending longitudinally therein and secondary lock slots extending transversely therein and communicating with the terminal jacks; the aforementioned terminals or the aforementioned electrical connection modules being inserted into the terminal jacks; and a secondary lock being inserted into the secondary lock slots and abutting against mating portions of the terminals longitudinally to lock the terminals in the terminal jacks.

[0022] According to an exemplary embodiment of the present utility model, a limiting step perpendicular to the longitudinal direction thereof is formed in the housing, and the limiting step is adapted to abut against the rear end of a primary lock spring piece of the terminal to lock the terminal in the terminal jack.

[0023] According to another exemplary embodiment of the present utility model, a guiding groove extending longitudinally is formed in the housing, and the guiding groove is used to cooperate with a guiding plate on the terminal to guide the terminal to be inserted into the housing in a correct orientation.

[0024] According to another exemplary embodiment of the present utility model, a plurality of terminal jacks are formed in the housing, and the secondary lock slots communicate with the plurality of terminal jacks; the connector includes a plurality of terminals, and the plurality of terminals are respectively inserted into the plurality of terminal jacks, and the secondary lock is adapted to abut against the plurality of terminals simultaneously to lock the plurality of terminals in the housing simultaneously.

[0025] In each of the foregoing exemplary embodiments according to the present utility model, the front end portion and the rear end portion of the mating portion of the terminal have a strengthening structure, which improves the structural strength of the front end portion and the rear end portion of the mating portion and can ensure that the terminal is reliably locked in the housing.

[0026] Through the description of the present utility model with reference to the accompanying drawings hereinafter, other objects and advantages of the present utility model will be obvious and can help to have a comprehensive understanding of the present utility model. Description of the Drawings

[0027] Figure 1 A perspective schematic view of a terminal according to an exemplary embodiment of the present utility model when viewed from one side;

[0028] Figure 2 A perspective schematic view of a terminal according to an exemplary embodiment of the present utility model when viewed from the other side;

[0029] Figure 3 A perspective schematic view of a terminal according to an exemplary embodiment of the present utility model when viewed from the bottom;

[0030] Figure 4A longitudinal sectional view of the mating portion of a terminal according to an exemplary embodiment of the present utility model is shown;

[0031] Figure 5 A longitudinal sectional view of the mating portion of a terminal and the mating terminal when they are mated according to an exemplary embodiment of the present utility model is shown;

[0032] Figure 6 An exploded schematic view of a connector according to an exemplary embodiment of the present utility model is shown;

[0033] Figure 7 A perspective schematic view of a connector according to an exemplary embodiment of the present utility model is shown;

[0034] Figure 8 A longitudinal sectional view of a connector according to an exemplary embodiment of the present utility model is shown. Detailed implementation manners

[0035] Hereinafter, through embodiments and in conjunction with the accompanying drawings, the technical solutions of the present utility model will be further specifically described. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of the present utility model, and should not be construed as a limitation of the present utility model.

[0036] In addition, in the following detailed description, for the sake of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments disclosed herein. However, it is obvious that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0037] According to an overall inventive concept of the present utility model, a terminal is provided. The terminal includes: a mating portion having a front end portion and a rear end portion opposite to each other in its longitudinal direction for mating with a mating terminal; and a primary locking spring piece extending obliquely backward and upward from the front end portion of the mating portion for being locked into a housing of a connector to lock the terminal in the housing. The front end portion of the mating portion includes: a front annular portion including a first top wall, a first bottom wall, and a pair of first side walls; and a front reinforcing portion for enhancing the structural strength of the front annular portion and including a first bottom plate and first side plates and first joint plates located on both sides of the first bottom plate. The root of the primary locking spring piece is connected to the rear side of the first top wall, the first bottom plate abuts against the outside of the first bottom wall, the first side plate abuts against the outside of one of the first side walls and is connected to the first top wall, and the first joint plate engages with the other first side wall.

[0038] According to another general technical concept of the present utility model, an electrical connection module is provided. The electrical connection module includes: the aforementioned terminal; and a cable, one end of which is electrically connected to the terminal.

[0039] According to another general technical concept of the present utility model, a connector is provided. The connector includes: a housing having a terminal socket extending longitudinally therein and a secondary lock slot extending transversely therein and communicating with the terminal socket; the aforementioned terminal or the aforementioned electrical connection module, which is inserted into the terminal socket; and a secondary lock, which is inserted into the secondary lock slot and abuts against the mating portion of the terminal longitudinally to lock the terminal in the terminal socket.

[0040] Figure 1 Showing a perspective schematic view of terminal 1 according to an exemplary embodiment of the present utility model when viewed from one side; Figure 2 Showing a perspective schematic view of terminal 1 according to an exemplary embodiment of the present utility model when viewed from the other side; Figure 3 Showing a perspective schematic view of terminal 1 according to an exemplary embodiment of the present utility model when viewed from the bottom;

[0041] Figure 4 Showing a longitudinal sectional view of the mating portion 10 of terminal 1 according to an exemplary embodiment of the present utility model; Figure 5 Showing a longitudinal sectional view when the mating portion 10 of terminal 1 and the mating terminal 1' are mated according to an exemplary embodiment of the present utility model; Figure 6 Showing an exploded schematic view of the connector according to an exemplary embodiment of the present utility model; Figure 7 Showing a perspective schematic view of the connector according to an exemplary embodiment of the present utility model;

[0042] Figure 8 Showing a longitudinal sectional view of the connector according to an exemplary embodiment of the present utility model.

[0043] As Figures 1 to 8 Shown, in an exemplary embodiment of the present utility model, a terminal 1 is disclosed. The terminal 1 includes: a mating portion 10 and a primary lock spring piece 16. The mating portion 10 is used to mate with the mating terminal 1' and has a front end portion and a rear end portion that are opposite to each other in its longitudinal direction Y. The primary lock spring piece 16 extends obliquely backward and upward from the front end portion of the mating portion 10 and is used to be locked into the housing 3 of the connector to lock the terminal 1 in the housing 3.

[0044] As Figures 1 to 8As shown, in the illustrated embodiment, the front end portion of the mating portion 10 includes: a front annular portion 11 and a front reinforcing portion 14. The front annular portion 11 includes a first top wall 11a, a first bottom wall 11b, and a pair of first side walls 11c. The front reinforcing portion 14 is used to enhance the structural strength of the front annular portion 11 and includes a first bottom plate 14b and first side plates 14a and first joint plates 14c located on both sides of the first bottom plate 14b. The root of the primary locking spring piece 16 is connected to the rear side of the first top wall 11a. The first bottom plate 14b abuts against the outer side of the first bottom wall 11b. The first side plate 14a abuts against the outer side of one of the first side walls 11c and is connected to the first top wall 11a. The first joint plate 14c is joined to the other first side wall 11c.

[0045] As Figures 1 to 8 shown, in the illustrated embodiment, the front reinforcing portion 14 is U-shaped, and the upper side of the first side plate 14a is connected to the side edge of the first top wall 11a. A first joint groove 11d is formed in the other first side wall 11c, and the first joint plate 14c is joined into the first joint groove 11d formed in the other first side wall 11c.

[0046] As Figures 1 to 8 shown, in the illustrated embodiment, the first joint plate 14c and the first joint groove 11d in the other first side wall 11c are L-shaped, T-shaped, or Ω-shaped.

[0047] As Figures 1 to 8 shown, in the illustrated embodiment, the rear end portion of the mating portion 10 includes: a rear annular portion 12 and a rear reinforcing portion 15. The rear annular portion 12 includes a second top wall 12a, a second bottom wall 12b, and a pair of second side walls 12c. The rear reinforcing portion 15 is used to enhance the structural strength of the rear annular portion 12 and includes a second bottom plate 15b and second side plates 15a and second joint plates 15c respectively located on both sides of the second bottom plate 15b. The rear side of the second top wall 12a is used to abut against the secondary lock 4 of the connector to lock the terminal 1 in the housing 3. The second bottom plate 15b abuts against the outer side of the second bottom wall 12b. The second side plate 15a abuts against the outer side of one of the second side walls 12c and is connected to the second top wall 12a. The second joint plate 15c is joined to the other second side wall 12c.

[0048] As Figures 1 to 8 shown, in the illustrated embodiment, the rear reinforcing portion 15 is U-shaped, and the upper side of the second side plate 15a is connected to the side edge of the second top wall 12a. A second joint groove 12d is formed in the other second side wall 12c, and the second joint plate 15c is joined into the second joint groove 12d formed in the other second side wall 12c.

[0049] As Figures 1 to 8 shown, in the illustrated embodiment, the second joint plate 15c and the second joint groove 12d in the other second side wall 12c are L-shaped, T-shaped, or Ω-shaped.

[0050] As Figures 1 to 8 shown, in the illustrated embodiment, the mating portion 10 of the terminal 1 further includes: a main body portion 13 and a reinforcing plate 19. The main body portion 13 extends along the longitudinal direction Y of the terminal 1 and is connected between the front annular portion 11 and the rear annular portion 12. The reinforcing plate 19 extends along the longitudinal direction Y of the terminal 1 and is connected between the first bottom plate 14b and the second bottom plate 15b. The cross-section of the main body portion 13 is U-shaped with an open top, and the reinforcing plate 19 abuts against the bottom of the main body portion 13.

[0051] As Figures 1 to 8 shown, in the illustrated embodiment, the mating portion 10 of the terminal 1 has an insertion cavity 101 that extends along the longitudinal direction Y of the terminal 1 and allows the mating terminal 1' to be inserted, and includes a first cantilever 110 located in the insertion cavity 101. The first cantilever 110 has a plurality of raised first electrical contacts 110b, and the plurality of first electrical contacts 110b are spaced apart from each other in the longitudinal direction Y for simultaneous electrical contact with one side of the mating terminal 1' inserted into the insertion cavity 101.

[0052] As Figures 1 to 8 shown, in the illustrated embodiment, the mating portion 10 of the terminal 1 further includes a second cantilever 120 located in the insertion cavity 101, and the first cantilever 110 and the second cantilever 120 are spaced opposite to each other in the height direction Z of the mating portion 10. The second cantilever 120 has a plurality of raised second electrical contacts 120b, and the plurality of second electrical contacts 120b are spaced apart from each other in the longitudinal direction Y for simultaneous electrical contact with the other side of the mating terminal 1' inserted into the insertion cavity 101.

[0053] As Figures 1 to 8 shown, in the illustrated embodiment, the fixed end 110a of the first cantilever 110 is connected to the upper side edge of a first side wall 11c and abuts against the inner side of the first top wall 11a, and the first cantilever 110 has a first free end 110c that abuts against the inner side of the second top wall 12a. The root of the second cantilever 120 is connected to the rear side of the first bottom wall 11b, and the second cantilever 120 has a second free end 120c that abuts against the inner side of the second bottom plate 15b.

[0054] As Figures 1 to 8 shown, in the illustrated embodiment, the plurality of first electrical contacts 110b on the first cantilever 110 and the plurality of second electrical contacts 120b on the second cantilever 120 correspond to each other respectively and are aligned respectively in the height direction Z.

[0055] As Figures 1 to 8As shown, in the illustrated embodiment, the mating portion 10 of the terminal 1 further includes a guide plate 17. The guide plate 17 extends along the longitudinal direction Y of the terminal 1 and is perpendicular to the transverse direction X of the terminal 1. The guide plate 17 is located on one side of the mating portion 10 in the transverse direction X and is used to cooperate with the guide groove 303 on the housing 3 to guide the terminal 1 to be inserted into the housing 3 in the correct orientation.

[0056] As Figures 1 to 8 shown, in the illustrated embodiment, the guide plate 17 is located above the first top wall 11a and the second top wall 12a. The lower side of the front end of the guide plate 17 is connected to the first top wall 11a, and the lower side of the rear end of the guide plate 17 is connected to the second top wall 12a.

[0057] As Figures 1 to 8 shown, in the illustrated embodiment, the terminal 1 further includes a crimping portion 18. The crimping portion 18 is used to be crimped to the cable 2. The crimping portion 18 is connected to the rear side of the rear annular portion 12 of the mating portion 10 and extends rearward from the rear annular portion 12.

[0058] As Figures 1 to 8 shown, in the illustrated embodiment, the crimping portion 18 includes: a first crimping portion 181 and a second crimping portion 182. The first crimping portion 181 is used to be crimped to the conductor core 21 of the cable 2. The second crimping portion 182 is used to be crimped to the outer covering 22 of the cable 2. The first crimping portion 181 is located between the mating portion 10 and the second crimping portion 182.

[0059] As Figures 1 to 8 shown, in the illustrated embodiment, the terminal 1 is a one-piece stamping. For example, the terminal 1 can be made by stamping a single sheet of metal sheet.

[0060] As Figures 1 to 8 shown, in another exemplary embodiment of the present invention, an electrical connection module is also disclosed. The electrical connection module includes: the aforementioned terminal 1 and the cable 2, and one end of the cable 2 is electrically connected to the terminal 1. For example, the crimping portion 18 of the terminal 1 is crimped to one end of the cable 2.

[0061] As Figures 1 to 8 shown, in another exemplary embodiment of the present invention, a connector is also disclosed. The connector includes: a housing 3, the aforementioned terminal 1 or the electrical connection module, and a secondary lock 4. The housing 3 has a terminal jack 301 extending along its longitudinal direction Y and a secondary lock slot 302 extending along its transverse direction X and communicating with the terminal jack 301. The terminal 1 or the electrical connection module is inserted into the terminal jack 301. The secondary lock 4 is inserted into the secondary lock slot 302 and abuts against the mating portion 10 of the terminal 1 along the longitudinal direction Y to lock the terminal 1 in the terminal jack 301.

[0062] As Figures 1 to 8As shown, in the illustrated embodiment, a limiting step 316 perpendicular to its longitudinal direction Y is formed in the housing 3. The limiting step 316 is adapted to abut against the rear end of the primary locking spring piece 16 of the terminal 1 to lock the terminal 1 in the terminal jack 301.

[0063] As Figures 1 to 8 shown, in the illustrated embodiment, a guiding groove 303 extending along its longitudinal direction Y is formed in the housing 3. The guiding groove 303 is used to cooperate with the guiding plate 17 on the terminal 1 to guide the terminal 1 to be inserted into the housing 3 in the correct orientation.

[0064] As Figures 1 to 8 shown, in the illustrated embodiment, a plurality of terminal jacks 301 are formed in the housing 3. The secondary locking slots 302 communicate with the plurality of terminal jacks 301. The connector includes a plurality of terminals 1, and the plurality of terminals 1 are respectively inserted into the plurality of terminal jacks 301. The secondary lock 4 is adapted to abut against the plurality of terminals 1 simultaneously to lock the plurality of terminals 1 in the housing 3 simultaneously.

[0065] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements to them. The structures described in various embodiments can be freely combined without conflicts in structure or principle. These changes should reasonably fall within the protection scope of the present invention.

[0066] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

[0067] Although some embodiments of the general concept of the present invention have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0068] It should be noted that the term "including" does not exclude other elements or steps, and the terms "a" or "one" do not exclude a plurality. Additionally, any element label in the claims should not be construed as limiting the scope of the present invention.

Claims

1. A terminal, characterized in that: include: A mating portion (10) used for mating with a mating terminal (1') and having a front end portion and a rear end portion opposite to each other in the longitudinal direction (Y); and A primary locking spring (16) extends obliquely backward and upward from the front end of the mating portion (10) and is used to lock into a housing (3) of the connector to lock the terminal (1) in the housing (3). The front end portion of the mating portion (10) comprises: A front annular portion (11) comprising a first top wall (11a), a first bottom wall (11b) and a pair of first side walls (11c); and A front reinforcing portion (14) is used to enhance the structural strength of the front annular portion (11) and comprises a first bottom plate (14b) and a first side plate (14a) and a first connecting plate (14c) located on both sides of the first bottom plate (14b). The root of the primary locking spring (16) is connected to the rear side of the first top wall (11a), the first bottom plate (14b) abuts against the outer side of the first bottom wall (11b), the first side plate (14a) abuts against the outer side of a first side wall (11c) and is connected to the first top wall (11a), and the first connecting plate (14c) is connected to the other first side wall (11c).

2. The terminal according to claim 1, characterized in that: The front reinforcement portion (14) is U-shaped, and the upper side of the first side plate (14a) is connected to the side edge of the first top wall (11a); A first engaging groove (11d) is formed on the other first side wall (11c), and the first engaging plate (14c) is engaged with the first engaging groove (11d) on the other first side wall (11c).

3. The terminal according to claim 2, characterized in that: The first joining plate (14c) and the first joining groove (11d) on the other first side wall (11c) are L-shaped, T-shaped or Ω-shaped.

4. The terminal according to claim 1, characterized in that: The rear end portion of the mating portion (10) comprises: a rear annular portion (12), comprising a second top wall (12a), a second bottom wall (12b) and a pair of second side walls (12c); and a rear reinforcing portion (15) for enhancing the structural strength of the rear annular portion (12) and comprising a second bottom plate (15b) and a second side plate (15a) and a second joining plate (15c) respectively located on both sides of the second bottom plate (15b), The rear side of the second top wall (12a) is used to abut against the secondary lock (4) of the connector to lock the terminal (1) in the housing (3). The second bottom plate (15b) abuts against the outer side of the second bottom wall (12b), the second side plate (15a) abuts against the outer side of one second side wall (12c) and is connected to the second top wall (12a), and the second connecting plate (15c) is connected to the other second side wall (12c).

5. The terminal according to claim 4, characterized in that: The rear reinforcement portion (15) is U-shaped, and the upper side of the second side plate (15a) is connected to the side edge of the second top wall (12a); A second engaging groove (12d) is formed on the other second side wall (12c), and the second engaging plate (15c) is engaged with the second engaging groove (12d) on the other second side wall (12c).

6. The terminal according to claim 5, characterized in that: The second joining plate (15c) and the second joining groove (12d) on the other second side wall (12c) are L-shaped, T-shaped or Ω-shaped.

7. The terminal according to claim 4, characterized in that: The mating portion (10) of the terminal (1) further comprises: a main body portion (13) extending along the longitudinal direction (Y) of the terminal (1) and connected between the front annular portion (11) and the rear annular portion (12); and a reinforcing plate (19) extending along the longitudinal direction (Y) of the terminal (1) and connected between the first bottom plate (14b) and the second bottom plate (15b), The cross section of the main body (13) is in a U-shape with an open top, and the reinforcing plate (19) abuts against the bottom of the main body (13).

8. The terminal according to claim 4, characterized in that: The mating portion (10) of the terminal (1) has an insertion cavity (101) extending along the longitudinal direction (Y) of the terminal (1) and allowing the mating terminal (1') to be inserted, and includes a first cantilever (110) located in the insertion cavity (101). The first cantilever (110) has a plurality of protruding first electrical contacts (110b), which are spaced apart from each other in the longitudinal direction (Y) and are used to simultaneously make electrical contact with one side of a mating terminal (1') inserted into the insertion cavity (101).

9. The terminal according to claim 8, characterized in that: The mating portion (10) of the terminal (1) further comprises a second cantilever (120) located in the insertion cavity (101), the first cantilever (110) and the second cantilever (120) being spaced apart and opposed to each other in a height direction (Z) of the mating portion (10), The second cantilever (120) has a plurality of protruding second electrical contacts (120b), which are spaced apart from each other in the longitudinal direction (Y) and are used to simultaneously make electrical contact with the other side of the mating terminal (1') inserted into the insertion cavity (101).

10. The terminal according to claim 9, characterized in that: The fixed end (110a) of the first cantilever (110) is connected to the upper side edge of the first side wall (11c) and abuts against the inner side of the first top wall (11a), and the first cantilever (110) has a first free end (110c) abutting against the inner side of the second top wall (12a); The root of the second cantilever (120) is connected to the rear side of the first bottom wall (11b), and the second cantilever (120) has a second free end (120c) abutting against the inner side of the second bottom plate (15b).

11. The terminal according to claim 9, characterized in that: The plurality of first electrical contacts (110b) on the first cantilever (110) and the plurality of second electrical contacts (120b) on the second cantilever (120) respectively correspond to each other and are respectively aligned in the height direction (Z).

12. The terminal according to claim 4, characterized in that: The mating portion (10) of the terminal (1) further comprises: A guide plate (17) extending in the longitudinal direction (Y) of the terminal (1) and perpendicular to the transverse direction (X) of the terminal (1), The guide plate (17) is located on one side of the mating portion (10) in the transverse direction (X), and is used to cooperate with the guide groove (303) on the housing (3) to guide the terminal (1) to be inserted into the housing (3) in the correct orientation.

13. The terminal according to claim 12, characterized in that: The guide plate (17) is located above the first top wall (11a) and the second top wall (12a), the lower side of the front end of the guide plate (17) is connected to the first top wall (11a), and the lower side of the rear end of the guide plate (17) is connected to the second top wall (12a).

14. The terminal according to claim 1, characterized in that: Also includes: The crimping portion (18) is used for crimping onto the cable (2). The crimping portion (18) is connected to the rear side of the rear annular portion (12) of the mating portion (10) and extends rearward from the rear annular portion (12).

15. The terminal according to claim 14, characterized in that: The crimping portion (18) comprises: A first crimping portion (181) for crimping onto a conductor core (21) of the cable (2); and The second crimping portion (182) is used for crimping onto the outer covering layer (22) of the cable (2). The first crimping portion (181) is located between the mating portion (10) and the second crimping portion (182).

16. The terminal according to any one of claims 1 to 15, characterized in that: The terminal (1) is an integral stamped part.

17. An electrical connection module, characterized in that: include: The terminal (1) according to any one of claims 1 to 16; and A cable (2) has one end electrically connected to the terminal (1).

18. A connector, characterized in that: include: The housing (3) has a terminal insertion hole (301) extending in its longitudinal direction (Y) and a secondary lock insertion slot (302) extending in its transverse direction (X) and communicating with the terminal insertion hole (301); The terminal (1) according to any one of claims 1 to 16 or the electrical connection module according to claim 17 is inserted into the terminal insertion hole (301); and A secondary lock (4) is inserted into the secondary lock slot (302) and abuts against the mating portion (10) of the terminal (1) along the longitudinal direction (Y) to lock the terminal (1) in the terminal insertion hole (301).

19. The connector according to claim 18, characterized in that: A limiting step (316) is formed in the housing (3) and is perpendicular to the longitudinal direction (Y) thereof. The limiting step (316) is suitable for abutting against the rear end of the primary locking spring (16) of the terminal (1) to lock the terminal (1) in the terminal insertion hole (301).

20. The connector according to claim 18, characterized in that: A guide groove (303) extending along the longitudinal direction (Y) is formed on the housing (3), and the guide groove (303) is used to cooperate with a guide plate (17) on the terminal (1) to guide the terminal (1) to be inserted into the housing (3) in a correct orientation.

21. The connector according to claim 18, characterized in that: A plurality of terminal insertion holes (301) are formed in the housing (3), and the secondary lock slot (302) is in communication with the plurality of terminal insertion holes (301); The connector comprises a plurality of terminals (1), wherein the plurality of terminals (1) are respectively inserted into the plurality of terminal insertion holes (301), and the secondary lock (4) is adapted to abut against the plurality of terminals (1) at the same time so as to lock the plurality of terminals (1) in the housing (3) at the same time.

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