Terminal, electrical connection module, and connector

Abstract

To provide a terminal capable of improving structural strength of a fitting part and guaranteeing that the terminal is surely locked to a housing.SOLUTION: The front end of the fitting portion 10 includes a front annular portion 11 including a first top 11a side 11c, a first bottom 11c, and a pair of first sidewall side walls, and a front reinforcing portion 14 configured to enhance the structural strength of the front annular portion 11 and including a first bottom plate, and a first side plate side wall and a first engaging plate disposed on both sides of the first bottom plate. A root portion of the primary locking tab 16 is connected to a rear side of the first top side 11a, the first bottom plate abuts against an outer side of the first bottom 11c, the first side plate side 11c abuts against an outer side of one of the first sidewall side 11a and is connected to the first top side 14c, and the first engaging plate 11c is engaged with the other first sidewall side wall.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Chinese Patent Application No. CN202421753620.8, filed with the State Intellectual Property Office of China on July 23, 2024, the entire disclosure of which is incorporated herein by reference.

[0002] The present invention relates to a terminal, an electrical connection module including the terminal, and a connector including the electrical connection module. [Background technology]

[0003] In the prior art, a primary locking tab is formed on a connector terminal, and the primary locking tab is locked to the connector housing to lock the terminal to the housing. The primary locking tab is connected to the front end of the terminal and extends obliquely upward and rearward. The front end of the existing terminal has a single-layer annular structure with low strength, making it easy for the primary locking tab to disengage from the housing. Furthermore, in the prior art, a secondary lock attached to the housing abuts against the rear end surface of the mating portion of the terminal to further lock the terminal to the housing. The rear end of the existing mating portion has a single-layer annular structure with low strength and easy deformation, making it easy for the terminal to disengage from the secondary lock. Furthermore, in the prior art, connector terminals generally have only a single cantilever and a single electrical contact formed on the single cantilever, making electrical contact between the connector terminal and the mating connector terminal unstable and unreliable. Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made to overcome or mitigate at least one aspect of the above disadvantages. [Means for solving the problem]

[0005] According to one aspect of the present invention, a terminal is provided. The terminal includes a mating portion configured to mate with a mating terminal, the mating portion having a front end and a rear end opposite each other in the longitudinal direction of the mating portion, and a primary locking tab extending diagonally rearward and upward from the front end of the mating portion and configured to lock onto the connector housing to lock the terminal to the housing. The front end 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 configured to enhance the structural strength of the front annular portion and including a first bottom plate, and first side plates and first engagement plates disposed on either side of the first bottom plate. A root portion of the primary locking tab is connected to 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 of the first side walls and is connected to the first top wall, and the first engagement plate engages with the other first side wall.

[0006] According to an exemplary embodiment of the present invention, the front reinforcement portion is U-shaped, the upper side of the first side plate is connected to the side edge of the first upper wall, a first engagement groove is formed in the other first side wall, and the first engagement plate engages with the first engagement groove of the other first side wall.

[0007] According to another exemplary embodiment of the present invention, the first engagement plate and the first engagement groove of the other first side wall form an L-shape, a T-shape, or an Ω-shape.

[0008] According to another exemplary embodiment of the present invention, the rear end 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 reinforcement portion configured to increase the structural strength of the rear annular portion and including a second bottom plate, and second side plates and second engagement plates disposed on either side of the second bottom plate. A rear side of the second top wall is configured to abut against a secondary lock of the connector to lock the terminal to the housing, the second bottom plate abutting against an outer side of the second bottom wall, the second side plate abutting against an outer side of one of the second side walls and connected to the second top wall, and the second engagement plate engaging the other second side wall.

[0009] According to another exemplary embodiment of the present invention, the rear reinforcement is U-shaped, the upper side of the second side plate is connected to the side edge of the second upper wall, a second engagement groove is formed in the other second side wall, and the second engagement plate engages with the second engagement groove of the other second side wall.

[0010] According to another exemplary embodiment of the present invention, the second engagement plate and the second engagement groove of the other second side wall form an L-shape, a T-shape, or an Ω-shape.

[0011] According to another exemplary embodiment of the present invention, the mating portion of the terminal further includes a main body portion extending in the longitudinal direction of the terminal and connected between the front annular portion and the rear annular portion, and a reinforcing plate extending in the longitudinal direction of the terminal and connected between the first bottom plate and the second bottom plate, wherein the main body portion has a U-shaped cross section with an open top, and the reinforcing plate abuts the bottom of the main body portion.

[0012] According to another exemplary embodiment of the present invention, the mating portion of the terminal has an insertion cavity extending longitudinally of the terminal and allowing insertion of a mating terminal, and includes a first cantilever disposed in the insertion cavity, the first cantilever having a plurality of protruding first electrical contacts that are spaced apart from one another longitudinally and configured to simultaneously electrically contact one side of the mating terminal inserted into the insertion cavity.

[0013] According to another exemplary embodiment of the present invention, the mating portion of the terminal further includes a second cantilever disposed in the insertion cavity, the first cantilever and the second cantilever being disposed opposite each other and spaced apart in the height direction of the mating portion, the second cantilever having a plurality of protruding second electrical contacts that are spaced apart from each other in the longitudinal direction and configured to simultaneously electrically contact the other side of the mating terminal inserted into the insertion cavity.

[0014] According to another exemplary embodiment of the present invention, a fixed end of a first cantilever is connected to the upper edge of the first side wall and abuts against the inside of the first top wall, the first cantilever has a first free end abutting against the inside of the second top wall, and a root portion of a second cantilever is connected to the rear side of the first bottom wall and the second cantilever has a second free end abutting against the inside of the second bottom wall.

[0015] According to another exemplary embodiment of the present invention, the plurality of first electrical contacts of the first cantilever are aligned in height with the plurality of second electrical contacts of the second cantilever, respectively.

[0016] According to another exemplary embodiment of the present invention, the mating portion of the terminal further includes a guide plate extending in the longitudinal direction of the terminal and perpendicular to the lateral direction of the terminal, the guide plate being arranged on one lateral side of the mating portion and configured to cooperate with the guide groove of the housing to guide the insertion of the terminal into the housing in the correct orientation.

[0017] According to another exemplary embodiment of the present invention, a guide plate is disposed above the first upper wall and the second upper wall, with the underside of the front end of the guide plate connected to the first upper wall and the underside of the rear end of the guide plate connected to the second upper wall.

[0018] According to another exemplary embodiment of the present invention, the terminal further comprises a crimping portion configured to crimp onto the cable, the crimping portion being connected to a rear side of the rear annular portion of the mating portion and extending rearward from the rear annular portion.

[0019] According to another exemplary embodiment of the present invention, the crimping portion includes a first crimping portion configured to crimp onto a conductor core of the cable and a second crimping portion configured to crimp onto an outer jacket layer of the cable, the first crimping portion being disposed between the mating portion and the second crimping portion.

[0020] According to another exemplary embodiment of the present invention, the terminal is an integral stamped part.

[0021] According to another aspect of the present invention, there is provided an electrical connection module comprising the terminal described above and a cable electrically connected at one end to the terminal.

[0022] According to another aspect of the present invention, there is provided a connector comprising: a housing having a terminal insertion hole extending in the longitudinal direction of the housing and a secondary lock insertion slot extending laterally through the housing and communicating with the terminal insertion hole, the above-described terminal or the above-described electrical connection module inserted into the terminal insertion hole, and a secondary lock inserted into the secondary lock insertion slot and abutting against a fitting portion of the terminal in the longitudinal direction to lock the terminal in the terminal insertion hole.

[0023] According to an exemplary embodiment of the present invention, a locking step perpendicular to the longitudinal direction is formed on the housing, and the locking step is configured to abut against the rear end of the primary locking tab of the terminal to lock the terminal in the terminal insertion hole.

[0024] According to another exemplary embodiment of the present invention, a longitudinally extending guide groove is formed in the housing and is configured to cooperate with a guide plate on the terminal to guide the insertion of the terminal into the housing in the correct orientation.

[0025] According to another exemplary embodiment of the present invention, a plurality of terminal insertion holes are formed in the housing, the secondary lock insertion slot is in communication with the plurality of terminal insertion holes, the connector has a plurality of terminals, the plurality of terminals are inserted into the plurality of terminal insertion holes respectively, and the secondary lock is configured to abut against the plurality of terminals simultaneously to lock the plurality of terminals to the housing simultaneously.

[0026] In the above exemplary embodiment according to the present invention, the mating portion of the terminal has reinforcing structures at both the front and rear ends, which can improve the structural strength of the front and rear ends of the mating portion and ensure that the terminal is securely locked into the housing.

[0027] These and other features of the present invention will become more apparent from the detailed description of illustrative embodiments taken in conjunction with the accompanying drawings. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a diagrammatic perspective view of a terminal according to an exemplary embodiment of the present invention, viewed from one side; [Figure 2] 10 is a diagrammatic perspective view of a terminal according to an exemplary embodiment of the present invention, viewed from another side; FIG. [Figure 3] 1 is a bottom perspective view of a terminal according to an exemplary embodiment of the present invention; [Figure 4] 3 is a longitudinal cross-sectional view of a mating portion of a terminal according to an exemplary embodiment of the present invention; [Figure 5] 3 is a longitudinal cross-sectional view of a terminal according to an exemplary embodiment of the present invention when the mating portion is mated with a mating terminal. FIG. [Figure 6] 1 is an illustrative exploded view of a connector according to an exemplary embodiment of the present invention. [Figure 7] 1 is a diagrammatic perspective view of a connector according to an exemplary embodiment of the present invention; [Figure 8] 1 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] Exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. Like reference numerals refer to like elements throughout the drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art.

[0030] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are diagrammatically shown to simplify the drawings.

[0031] According to a general aspect of the present invention, a terminal is provided. The terminal includes a mating portion having a front end and a rear end opposite each other in a longitudinal direction of the mating portion and configured to mate with a mating terminal, and a primary locking tab extending diagonally rearward and upward from the front end of the mating portion and configured to lock onto a connector housing to lock the terminal to the housing. The front end 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 reinforcement portion configured to enhance the structural strength of the front annular portion and including a first bottom plate, and first side plates and first engagement plates disposed on either side of the first bottom plate. A root portion of the primary locking tab is connected to a rear side of the first top wall, the first bottom plate abutting an outer side of the first bottom wall, the first side plate abutting an outer side of one of the first side walls and connected to the first top wall, and the first engagement plate engaging the other first side wall.

[0032] According to another general aspect of the present invention, there is provided an electrical connection module comprising the terminal described above and a cable electrically connected at one end to the terminal.

[0033] According to another general concept of the present invention, there is provided a connector comprising: a housing having a terminal insertion hole extending in the longitudinal direction of the housing and a secondary lock insertion slot extending laterally of the housing and communicating with the terminal insertion hole, the above-described terminal or the above-described electrical connection module inserted into the terminal insertion hole, and a secondary lock inserted into the secondary lock insertion slot and abutting against a mating portion of the terminal in the longitudinal direction to lock the terminal in the terminal insertion hole.

[0034] FIG. 1 is an illustrative perspective view of a terminal 1 according to an exemplary embodiment of the present invention, as seen from one side. FIG. 2 is an illustrative perspective view of a terminal 1 according to an exemplary embodiment of the present invention, as seen from the other side. FIG. 3 is an illustrative perspective view of a terminal 1 according to an exemplary embodiment of the present invention, as seen from below. FIG. 4 is a longitudinal cross-sectional view of a mating portion 10 of a terminal 1 according to an exemplary embodiment of the present invention. FIG. 5 is a longitudinal cross-sectional view of a terminal 1 according to an exemplary embodiment of the present invention when the mating portion 10 is mated with a mating terminal 1'. FIG. 6 is an illustrative exploded view of a connector according to an exemplary embodiment of the present invention. FIG. 7 is an illustrative perspective view of a connector according to an exemplary embodiment of the present invention. FIG. 8 is a longitudinal cross-sectional view of a connector according to an exemplary embodiment of the present invention.

[0035] As shown in Figures 1 to 8, an exemplary embodiment of the present invention discloses a terminal. The terminal includes a mating portion 10 and a primary locking tab 16. The mating portion 10 is configured to mate with a mating terminal 1' and has a front end and a rear end that are opposite to each other in a longitudinal direction Y. The primary locking tab 16 extends diagonally rearward and upward from the front end of the mating portion 10 and is configured to lock into a housing 3 of a connector, thereby locking the terminal 1' to the housing 3.

[0036] As shown in FIGS. 1 to 8 , in the illustrated embodiment, the front end of the fitting 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 configured to enhance the structural strength of the front annular portion 11 and includes a first bottom plate 14b, as well as first side plates 14a and first engagement plates 14c disposed on either side of the first bottom plate 14b. A root portion of the primary locking tab 16 is connected to the rear side of the first top wall 11a, the first bottom plate 14b abuts against the outside of the first bottom wall 11b, the first side plate 14a abuts against the outside of one of the first side walls 11c and is connected to the first top wall 11a, and the first engagement plate 14c engages with the other first side wall 11c.

[0037] As shown in Figures 1 to 8, in the illustrated embodiment, the front reinforcement portion 14 is U-shaped, the upper side of the first side plate 14a is connected to the side edge of the first upper wall 11a, a first engagement groove 11d is formed in the other first side wall 11c, and the first engagement plate 14c engages with the first engagement groove 11d of the other first side wall 11c.

[0038] As shown in FIGS. 1 to 8, in the illustrated embodiment, the first engagement plate 14c and the first engagement groove 11d of the other first side wall 11c form an L-shape, a T-shape, or an Ω-shape.

[0039] As shown in FIGS. 1 to 8 , in the illustrated embodiment, the rear end of the mating portion 10 includes a rear annular portion 12 and a rear reinforcement 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 reinforcement portion 15 is configured to enhance the structural strength of the rear annular portion 12 and includes a second bottom plate 15b, as well as second side plates 15a and second engagement plates 15c disposed on either side of the second bottom plate 15b. The rear side of the second top wall 12a is configured to abut against the secondary lock 4 of the connector to lock the terminal 1 to 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, and the second engagement plate 15c engages with the other second side wall 12c.

[0040] 1 to 8, in the illustrated embodiment, the rear reinforcement part 15 is U-shaped, and the upper side of the second side plate 15a is connected to the side edge of the second upper wall 12a. A second engagement groove 12d is formed in the other second side wall 12c, and the second engagement plate 15c engages with the second engagement groove 12d of the other second side wall 12c.

[0041] As shown in FIGS. 1 to 8, in the illustrated embodiment, the second engagement plate 15c and the second engagement groove 12d of the other second side wall 12c form an L-shape, a T-shape, or an Ω-shape.

[0042] 1 to 8 , in the illustrated embodiment, the fitting portion 10 of the terminal 1 further includes a main body portion 13 and a reinforcing plate 19. The main body portion 13 extends in 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 in the longitudinal direction Y of the terminal 1 and is connected between the first bottom plate 14b and the second bottom plate 15b. The main body portion 13 has a U-shaped cross section with an open top, and the reinforcing plate 19 abuts against the bottom of the main body portion 13.

[0043] 1 to 8, in the illustrated embodiment, the fitting portion 10 of the terminal 1 has an insertion cavity 101 that extends in the longitudinal direction Y of the terminal 1 and allows insertion of a mating terminal 1′, and includes a first cantilever 110 disposed in the insertion cavity 101. The first cantilever 110 has a plurality of protruding first electrical contacts 110b that are spaced apart from one another in the longitudinal direction Y and configured to simultaneously make electrical contact with one side of the mating terminal 1′ inserted into the insertion cavity 101.

[0044] 1 to 8, in the illustrated embodiment, the fitting portion 10 of the terminal 1 further includes a second cantilever 120 disposed in the insertion cavity 101, and the first cantilever 110 and the second cantilever 120 are disposed opposite and spaced apart from each other in the height direction Z of the fitting 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 configured to simultaneously make electrical contact with the other side of the mating terminal 1′ inserted into the insertion cavity 101.

[0045] 1 to 8, in the illustrated embodiment, a fixed end 110a of a first cantilever 110 is connected to the upper edge of the first side wall 11c and abuts against the inside of the first top wall 11a, and the first cantilever 110 has a first free end 110c that abuts against the inside of the second top wall 12a. A base portion of a 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 inside of the second bottom plate 15b.

[0046] As shown in Figures 1 to 8, in the illustrated embodiment, the multiple first electrical contacts 110b of the first cantilever 110 are aligned in the height direction Z with the multiple second electrical contacts 120b of the second cantilever 120, respectively.

[0047] 1 to 8, in the illustrated embodiment, the fitting portion 10 of the terminal 1 further includes a guide plate 17. The guide plate 17 extends in the longitudinal direction Y of the terminal 1 and is perpendicular to the lateral direction X of the terminal 1. The guide plate 17 is disposed on one side of the fitting portion 10 in the lateral direction X, and is configured to cooperate with the guide groove 303 of the housing 3 to guide the insertion of the terminal 1 into the housing 3 in the correct orientation.

[0048] As shown in Figures 1 to 8, in the illustrated embodiment, guide plate 17 is positioned above first upper wall 11a and second upper wall 12a, and the underside of the front end of guide plate 17 is connected to first upper wall 11a and the underside of the rear end of guide plate 17 is connected to second upper wall 12a.

[0049] 1 to 8 , in the illustrated embodiment, the terminal 1 further includes a crimping portion 18. The crimping portion 18 is configured 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 fitting portion 10 and extends rearward from the rear annular portion 12.

[0050] 1 to 8 , 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 configured to be crimped onto the conductor core 21 of the cable 2. The second crimping portion 182 is configured to be crimped onto the outer coating layer 22 of the cable 2. The first crimping portion 181 is disposed between the fitting portion 10 and the second crimping portion 182.

[0051] 1 to 8, in the illustrated embodiment, the terminal 1 is a one-piece stamped part. For example, the terminal 1 can be formed by stamping out a single sheet of metal material.

[0052] 1 to 8, another exemplary embodiment of the present invention also discloses an electrical connection module. The electrical connection module includes the above-described terminal 1 and a cable 2 electrically connected at one end to the terminal 1. For example, the crimping portion 18 of the terminal 1 is crimped to one end of the cable 2.

[0053] As shown in FIGS. 1 to 8 , a connector is also disclosed in another exemplary embodiment of the present invention. The connector includes a housing 3, the above-described terminal 1 or the above-described electrical connection module, and a secondary lock 4. 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 lateral direction X and communicating with the terminal insertion hole 301. The terminal 1 or the electrical connection module is inserted into the terminal insertion hole 301. The secondary lock 4 is inserted into the secondary lock insertion slot 302 and abuts against the fitting portion 10 of the terminal 1 in the longitudinal direction Y, locking the terminal 1 in the terminal insertion hole 301.

[0054] As shown in Figures 1 to 8, in the illustrated embodiment, a locking step 316 perpendicular to the longitudinal direction Y is formed on the housing 3, and the locking step 316 is configured to abut against the rear end of the primary locking tab 16 of the terminal 1 to lock the terminal 1 in the terminal insertion hole 301.

[0055] As shown in Figures 1 to 8, in the illustrated embodiment, a guide groove 303 extending in the longitudinal direction Y is formed in the housing 3, and the guide groove 303 is configured to cooperate with the guide plate 17 of the terminal 1 to guide the insertion of the terminal 1 into the housing 3 in the correct orientation.

[0056] 1 to 8, in the illustrated embodiment, a plurality of terminal insertion holes 301 are formed in the housing 3, and the secondary lock insertion slot 302 communicates with the plurality of terminal insertion holes 301. The connector includes a plurality of terminals 1, which are inserted into the plurality of terminal insertion holes 301, respectively, and the secondary lock 4 is configured to abut against the plurality of terminals 1 simultaneously to lock the plurality of terminals 1 to the housing 3 simultaneously.

[0057] It should be understood by those skilled in the art that the above embodiments are illustrative and not restrictive. For example, those skilled in the art can make many modifications to the above embodiments without any contradiction in structure or principle, and can freely combine various features described in different embodiments with each other.

[0058] While several exemplary embodiments have been shown and described, it will be apparent to those skilled in the art that various changes or modifications can be made to these embodiments without departing from the principles and spirit of the present disclosure, the scope of which is defined by the following claims and their equivalents.

[0059] As used herein, elements described in the singular and preceded by the word "a" or "an" should be understood as not excluding a plural of said elements or steps, unless such exclusion is expressly stated. Furthermore, references to "one embodiment" of the invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Furthermore, unless expressly stated otherwise, embodiments "comprising" or "having" an element or elements having a particular characteristic may include additional such elements that do not have that characteristic.

Claims

1. A terminal, - a mating portion (10) configured to mate with a mating terminal (1'), the mating portion (10) having a front end and a rear end opposite each other in a longitudinal direction (Y) of the mating portion (10); - a primary locking tab (16) extending diagonally rearward and upward from the forward end of the mating portion (10) and configured to lock into the connector housing (3) to lock the terminal (1) to the housing (3); Equipped with The front end of the fitting portion (10) is a front annular portion (11) including a first top wall (11a), a first bottom wall (11b), and a pair of first side walls (11c); a front reinforcing portion (14) configured to increase the structural strength of the front annular portion (11) and including a first bottom plate (14b), and a first side plate (14a) and a first engaging plate (14c) respectively disposed on both sides of the first bottom plate (14b); Including, a terminal in which a base portion of the primary locking tab (16) is connected to the rear side of the first top wall (11a), the first bottom plate (14b) abuts against the outside of the first bottom wall (11b), the first side plate (14a) abuts against the outside of one of the pair of first side walls (11c) and is connected to the first top wall (11a), and the first engagement plate (14c) engages with the other first side wall (11c).

2. 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); 2. The terminal according to claim 1, wherein a first engagement groove (11d) is formed in the other first side wall (11c), and the first engagement plate (14c) engages with the first engagement groove (11d) of the other first side wall (11c).

3. 3. The terminal according to claim 2, wherein the first engagement plate (14c) and the first engagement groove (11d) of the other first side wall (11c) form an L-shape, a T-shape, or an Ω-shape.

4. The rear end of the fitting portion (10) is a rear annular portion (12) including a second top wall (12a), a second bottom wall (12b), and a pair of second side walls (12c); a rear reinforcing portion (15) configured to increase the structural strength of the rear annular portion (12) and including a second bottom plate (15b), and second side plates (15a) and second engaging plates (15c) arranged on both sides of the second bottom plate (15b); Including, The rear side of the second upper wall (12a) is configured to abut against a secondary lock (4) of the connector to lock the terminal (1) to the housing (3); 2. The terminal according to claim 1, wherein 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), and the second engagement plate (15c) engages with the other second side wall (12c).

5. 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), 5. The terminal according to claim 4, wherein a second engagement groove (12d) is formed in the other second side wall (12c), and the second engagement plate (15c) engages with the second engagement groove (12d) of the other second side wall (12c).

6. 6. The terminal according to claim 5, wherein the second engagement plate (15c) and the second engagement groove (12d) of the other second side wall (12c) form an L-shape, a T-shape, or an Ω-shape.

7. The fitting portion (10) of the terminal (1) is a main body portion (13) extending in the longitudinal direction (Y) of the terminal (1) and connected between the front annular portion (11) and the rear annular portion (12); a reinforcing plate (19) extending in the longitudinal direction (Y) of the terminal (1) and connected between the first bottom plate (14b) and the second bottom plate (15b); further comprising 5. The terminal according to claim 4, wherein the body portion (13) has a U-shaped cross section with an open top, and the reinforcing plate (19) abuts against the bottom of the body portion (13).

8. The fitting portion (10) of the terminal (1) has an insertion cavity (101) extending in the longitudinal direction (Y) of the terminal (1) and allowing insertion of the mating terminal (1'), and includes a first cantilever (110) disposed in the insertion cavity (101); 5. The terminal of claim 4, wherein the first cantilever (110) has a plurality of protruding first electrical contacts (110b), the plurality of first electrical contacts (110b) being spaced apart from one another in the longitudinal direction (Y) and configured to simultaneously electrically contact one side of the mating terminal (1') inserted into the insertion cavity (101).

9. The fitting portion (10) of the terminal (1) further includes a second cantilever (120) disposed in the insertion cavity (101), and the first cantilever (110) and the second cantilever (120) are disposed opposite to and spaced apart from each other in a height direction (Z) of the fitting portion (10); 9. The terminal according to claim 8, wherein the second cantilever (120) has a plurality of protruding second electrical contacts (120b), the plurality of second electrical contacts (120b) being spaced apart from one another in the longitudinal direction (Y) and configured to simultaneously electrically contact the other side of the mating terminal (1') inserted into the insertion cavity (101).

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

11. 10. The terminal of claim 9, wherein the plurality of first electrical contacts (110b) of the first cantilever (110) correspond to and are aligned with the plurality of second electrical contacts (120b) of the second cantilever (120) in the height direction (Z).

12. The fitting portion (10) of the terminal (1) is The terminal (1) further includes 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); 2. The terminal according to claim 1, wherein the guide plate (17) is arranged on one side of the mating portion (10) in the lateral direction (X) and is configured to cooperate with a guide groove (303) of the housing (3) to guide the insertion of the terminal (1) into the housing (3) in the correct orientation.

13. 13. The terminal according to claim 12, wherein the guide plate (17) is disposed above the first upper wall (11 a) and the second upper wall (12 a), and a lower side of a front end of the guide plate (17) is connected to the first upper wall (11 a), and a lower side of a rear end of the guide plate (17) is connected to the second upper wall (12 a).

14. a crimping portion (18) configured to crimp onto the cable (2); The terminal according to claim 1, wherein the crimping portion (18) is connected to a rear side of the rear annular portion (12) of the mating portion (10) and extends rearward from the rear annular portion (12).

15. The crimping portion (18) a first crimping portion (181) configured to crimp onto the conductor core (21) of the cable (2); a second crimping portion (182) configured to crimp onto the outer jacket layer (22) of the cable (2); Including, The terminal according to claim 14, wherein the first crimping portion (181) is disposed between the mating portion (10) and the second crimping portion (182).

16. Terminal according to any one of claims 1 to 15, wherein the terminal (1) is a one-piece stamped part.

17. 1. An electrical connection module comprising: A terminal (1) according to any one of claims 1 to 16, a cable (2) electrically connected at one end to the terminal (1); An electrical connection module comprising:

18. A connector, a housing (3) having a terminal insertion hole (301) extending in a longitudinal direction (Y) of the housing (3) and a secondary lock insertion slot (302) extending in a lateral direction (X) of the housing (3) and communicating with the terminal insertion hole (301); a terminal (1) according to any one of claims 1 to 16 or an electrical connection module according to claim 17, which is inserted into the terminal insertion hole (301); a secondary lock (4) that is inserted into the secondary lock insertion slot (302) and abuts against the fitting portion (10) of the terminal (1) in the longitudinal direction (Y) to lock the terminal (1) in the terminal insertion hole (301); A connector comprising:

19. 19. The connector of claim 18, wherein a stop step (316) perpendicular to the longitudinal direction (Y) is formed on the housing (3), and the stop step (316) is configured to abut against a rear end of a primary locking tab (16) of the terminal (1) to lock the terminal (1) in the terminal insertion hole (301).

20. 19. The connector of claim 18, wherein a guide groove (303) extending in the longitudinal direction (Y) is formed in the housing (3), and the guide groove (303) is configured to cooperate with a guide plate (17) of the terminal (1) to guide insertion of the terminal (1) into the housing (3) in the correct orientation.

21. A plurality of terminal insertion holes (301) are formed in the housing (3), and the secondary lock insertion slot (302) communicates with the plurality of terminal insertion holes (301); 19. The connector of claim 18, wherein the connector comprises a plurality of terminals (1), the plurality of terminals (1) are inserted into the plurality of terminal insertion holes (301), respectively, and the secondary lock (4) is configured to simultaneously abut against the plurality of terminals (1) to simultaneously lock the plurality of terminals (1) to the housing (3).

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