Electric connector

Abstract

Disclosed is an electric connector (10), comprising: a housing (100), the housing (100) being internally provided with a pin holding portion (110), the pin holding portion (110) being internally provided with a plurality of first through holes (120); a plurality of first through holes (120), a plurality of pins (200a, 200b), each pin (200a, 200b) comprising a terminating end (210a, 210b) and a connecting end (220a, 220b), each pin (200a, 200b) being disposed in a respective one of the plurality of first through holes (120), where each pin (200a, 200b) is retained in a removable manner in the respective first through hole (120).

Description

Technical Field

[0001] The present disclosure relates to the field of electrical connectors, and more particularly to an electrical connector with removable or replaceable pin-type contacts. Background Art

[0002] In existing electrical connector designs, pin-type contacts are usually set in a fixed manner in the electrical connector housing, more specifically, they are overmolded in the electrical connector housing. The pins of the electrical connector usually need to be connected to the circuit board assembly, and the electrical connector usually needs to be fixed at a certain distance from the circuit board assembly and installed in a fixed manner, which leads to low design flexibility, especially in different installation environments where the distance between the electrical connector and the circuit board assembly is different, and the installation orientation of the circuit board assembly relative to the electrical connector may also be different, which requires pins with different lengths or different configurations. For example, the pins may be long or short, and may be bent to adapt to different relative orientations between the circuit board assembly and the electrical connector. However, changing the length of the pins often involves replacing the entire set of electrical connectors, the reuse rate of the electrical connectors is low, and the cost of redesign and processing is involved, which greatly reduces cost-effectiveness.

[0003] Therefore, there is still a need for a completely new electrical connector which can overcome the problems of the prior art and bring other advantages. Summary of the invention

[0004] To this end, the present disclosure proposes an electrical connector, comprising: a shell, in which a pin holding portion is provided, and a plurality of first through holes are provided in the pin holding portion; a plurality of pins, each pin comprising a termination end and a connection end, each pin being provided in a corresponding one of the plurality of first through holes, wherein each pin is retained in the corresponding first through hole in a removable manner.

[0005] Therefore, the electrical connector proposed in the present disclosure allows the electrical connector to flexibly adapt to actual needs by retaining the pins in the housing of the electrical connector in a removable and thus replaceable manner. More specifically, the pins with a desired structure or shape are installed in the housing of the electrical connector according to actual needs, so that the electrical connector can be equipped with pins with different lengths or bends without changing the housing structure. This improves the reuse rate of the electrical connector and thus reduces the cost caused by redesigning and processing the housing.

[0006] According to different embodiments, the electrical connector proposed in the present disclosure may also have one or more of the following further developments.

[0007] In some embodiments, the pin is inserted into the first through hole along a first longitudinal direction, and the electrical connector further includes a pin locking member configured to prevent the pin from moving along a second longitudinal direction opposite to the first longitudinal direction.

[0008] In some embodiments, the pin locking member is provided with a plurality of second through holes, each pin is further provided to pass through a corresponding second through hole; the pin is provided with a first shoulder; wherein the first shoulder abuts against a peripheral portion defining the corresponding second through hole. Thus, the pin locking member is used to achieve reliable positioning and retention of the pin removably installed in the housing relative to the housing with a simple structure.

[0009] In some embodiments, the size of the second through hole is set to allow the pin lock to move between an unlocked position and a locked position along a transverse direction perpendicular to the first longitudinal direction. The size margin allows the pin lock to be installed and removed.

[0010] In some embodiments, the pin lock is provided with a transverse locking portion configured to lock the pin lock in the transverse direction in the locking position.

[0011] In some embodiments, the transverse locking portion comprises an elastic hook, and the elastic hook is configured to cooperate with the transverse holding portion on the housing, thereby allowing the pin locking member to be transversely locked relative to the housing in a simple structure and assembly manner.

[0012] In some embodiments, the pin lock is further provided with a longitudinal locking portion, wherein the longitudinal locking portion is configured to lock the pin lock in the locking position in the longitudinal direction.

[0013] In some embodiments, the first through hole is provided with a stopper, and the stopper is configured to prevent the pin from moving along the first longitudinal direction.

[0014] In some embodiments, the pin is further provided with a second shoulder, and the stopper is a step portion abutting against the second shoulder of the pin. Thus, the pin can be retained by the housing in a simple manner without requiring additional components and thus without requiring additional assembly steps.

[0015] In some embodiments, a widened portion of the pin is formed between the first shoulder and the second shoulder, which is conducive to the stable retention of the pin.

[0016] In some embodiments, the pin is further provided with an additional locking protrusion configured to cooperate with a corresponding additional locking recess in the inner wall of the first through hole. The provision of the additional locking protrusion and the additional locking recess allows the preassembly of the pin in the housing and further promotes its secure retention relative to the housing.

[0017] In some embodiments, the terminating end of the pin is used to connect to a circuit board, and the connecting end is used to connect to a mating electrical connection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 is a perspective schematic diagram of an electrical connector according to a first embodiment, wherein the terminating end of the pin is terminated to a circuit board;

[0020] Figure 2 yes Figure 1 A longitudinal sectional perspective schematic diagram of the electrical connector shown;

[0021] Figure 3 is a perspective schematic diagram of an electrical connector according to a second embodiment;

[0022] Figure 4 is a perspective schematic diagram of a housing of an electrical connector according to some embodiments;

[0023] Figure 5 yes Figure 3 A longitudinal sectional perspective schematic diagram of the electrical connector shown;

[0024] Figure 6 A schematic perspective view shows a pin locking member of an electrical connector according to some embodiments in an unlocked position on a housing;

[0025] Figure 7 A schematic perspective view shows a pin locking member of an electrical connector according to some embodiments in a locked position on a housing;

[0026] Figure 8 is a perspective schematic diagram of a pin of an electrical connector according to some embodiments;

[0027] Fig. 9 is a perspective schematic diagram of a pin locking member of an electrical connector according to some embodiments.

[0028] Reference numerals list

[0029] 10Electrical connector

[0030] 100 Shell

[0031] 110 pin holding part

[0032] 120 first through hole

[0033] 124 steps

[0034] 126 Additional locking recess

[0035] 130 lateral clamping part

[0036] 131 third locking slope

[0037] 132 fourth locking slope

[0038] 140 Receiving Department

[0039] 150 outer end face

[0040] 160 vertical clamping part

[0041] 161 longitudinal extension

[0042] 162 longitudinal locking hook

[0043] 200a, 200b pins

[0044] 210a, 210b terminal

[0045] 220a, 220b connection end

[0046] 230a, 230b first shoulder

[0047] 240a, 240b second shoulder

[0048] 250a, 250b widened portion

[0049] 260 Additional locking protrusion

[0050] 300 pin lock

[0051] 310 lateral locking part

[0052] 311 Rounded corners

[0053] 320 second through hole

[0054] 321 Peripheral Department

[0055] 330 elastic hook

[0056] 331 first locking slope

[0057] 332 second locking slope

[0058] 340 longitudinal locking part

[0059] 350 reinforcement

[0060] 360 degree grip

[0061] 400 Circuit Board

[0062] D1 first longitudinal direction

[0063] D2 second longitudinal direction Specific embodiments

[0064] In the following, the electrical connector according to the embodiment of the present disclosure is described in detail with reference to the accompanying drawings. In order to make the purpose, technical solution and advantages of the present disclosure clearer, the technical solution in the embodiment of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiment of the present disclosure. Obviously, the described embodiment is a part of the embodiment of the present disclosure, not all of the embodiments.

[0065] Therefore, the following detailed description of the embodiments of the present disclosure provided in conjunction with the accompanying drawings is not intended to limit the scope of the present disclosure claimed for protection, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0066] Unless otherwise defined in the context, the singular includes the plural. Throughout the specification, the terms "comprising", "having", etc. are used herein to specify the presence of the features, numbers, steps, operations, elements, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, parts or combinations thereof.

[0067] In addition, even though terms including ordinal numbers such as "first," "second," etc. may be used to describe various components, these components are not limited by these terms, and these terms are only used to distinguish one element from other elements. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component without departing from the scope of the present disclosure.

[0068] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the disclosed product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0069] refer to Figure 1-2 4-5, the present disclosure proposes an electrical connector 10, which includes a plurality of pins 200a, 200b installed in a removable and therefore replaceable manner. Specifically, the pins 200a, 200b are used to achieve electrical connection between the electrical connector 10 and other components, for example, the electrical connector 10 is electrically connected to the circuit board assembly 400 and the mating electrical connector (not shown) via the pins 200a, 200b. In one embodiment, the electrical connector 10 may include a housing 100 and a plurality of pins 200a, 200b that are removably and therefore replaceably arranged relative to the housing 100. A pin holding portion 110 for holding the plurality of pins 200a, 200b may be provided in the housing 100, and a plurality of through holes, referred to as first through holes 120, are provided in the pin holding portion 110. Each of the plurality of pins 200a, 200b includes a terminating end 210a, 210b and a connecting end 220a, 220b, and each pin 200a, 200b is disposed in a corresponding one of the plurality of first through holes 120 in the pin holding portion 110 of the housing 100, wherein each pin 200a, 200b is removably held in the corresponding first through hole 120. In a specific embodiment, the terminating ends 210a, 210b of the pins 200a, 200b are used to couple with the circuit board assembly 400; additionally, the connecting ends 220a, 220b of the pins 200a, 200b can be connected with a mating electrical connection component.

[0070] Therefore, the electrical connector 10 proposed in the present disclosure allows the electrical connector 10 to flexibly adapt to actual needs by retaining the pins 200a, 200b in the housing 100 of the electrical connector 10 in a removable and therefore replaceable manner. More specifically, the pins 200a, 200b having a desired structure or shape are installed in the housing 100 of the electrical connector 10 according to actual needs, so that the electrical connector 10 can be equipped with, for example, pins 200a, 200b with different lengths or bends without changing the structure of the housing 10, for example, to allow the electrical connector 10 to be connected to circuit board assemblies with different installation positions and orientations. This improves the reuse rate of the electrical connector 10 and thus reduces the cost caused by redesigning and processing the housing 100. In the present disclosure, Figure 1-2 The embodiment shown in FIG. 1 shows an electrical connector 10 having a longer pin 200 a. Figure 5 The embodiment shown in FIG. 1 shows an electrical connector 10 having shorter pins 200 b .

[0071] like Figure 1-3 , 5-7 and 9, in some embodiments, the pins 200a, 200b can be inserted into the corresponding first through holes 120 in the pin holding portion 110 of the housing 100 along the first longitudinal direction D1, and the electrical connector 10 can also include a pin locking member 300, which is configured to prevent the pins 200a, 200b from moving along the second longitudinal direction D2 opposite to the first longitudinal direction D1. It should be noted that the longitudinal direction is consistent with the main extension direction of the pins 200a, 200b shown in the figure; it should also be noted that, although not shown in the figure, the pins 200a, 200b can also be pins including one or more bent portions in addition to the straight pins shown in the figure, for example, the pins can include a longitudinal extension portion and a transverse extension portion bent from the longitudinal extension portion, for example, by 90°. In this case, the longitudinal direction is a direction consistent with the main extension direction of the longitudinal extension portion of the pin. In a specific embodiment, as shown in the figure, the pin locking member 300 may be provided with a plurality of second through holes 320, and each pin 200a, 200b is further provided to pass through the corresponding second through hole 320, that is, the second through hole 320 is at least partially aligned with the corresponding first through hole 120 in the pin holding portion 110 of the housing 100. The pins 200a, 200b may be provided with first shoulders 230a, 230b, and in the assembled state of the electrical connector 10, the first shoulders 230a, 230b of the pins 200a, 200b may abut against the peripheral portion 321 defining the corresponding second through hole 320, where the peripheral portion 321 defines and adjoins the peripheral portion of the second through hole 320. Thus, the pins 200a, 200b removably installed in the housing 100 are reliably positioned and retained relative to the housing 100 with a simple structure by means of the pin locking member 300.

[0072] like Figure 2 and 5 As shown, in some embodiments, the first through hole 120 of the pin holding portion 110 of the housing 100 may be provided with a stopper, which is configured to prevent the pins 200a, 200b from moving along the first longitudinal direction D1. More specifically, the stopper of the first through hole 120 in the pin holding portion 110 of the housing 100 and the pin locking member 300 together hold the pins 200a, 200b in place in two longitudinal directions opposite to each other. Figure 8As shown, in a specific embodiment, the pins 200a, 200b may also be provided with second shoulders 240a, 240b, and the stopper in the first through hole 120 is provided in the form of a step portion 124, and is provided to abut against the second shoulders 240a, 240b of the pins 200a, 200b. Thus, the housing 100 is allowed to removably retain the pins 240a, 240b in a simple manner without requiring additional components and thus without requiring additional assembly steps.

[0073] In some embodiments, Figure 2 , 5 As shown in Figures 8 and 9, widened portions 250a, 250b of the pins 200a, 200b are formed between the first shoulders 230a, 230b and the second shoulders 240a, 240b of the pins 200a, 200b. More specifically, each pin 200a, 200b is matched with the first through hole 120 in the pin holding portion 110 of the housing 100 at least at its widened portion 250a, 250b, that is, the outer contour of the widened portion 250a, 250b of the pins 200a, 200b is complementary to the inner contour of the corresponding portion of the corresponding first through hole 120. This is conducive to the stable retention of the pins 200a, 200b. In a specific embodiment, as Figure 8 As shown, the pins 200a, 200b can be longitudinally extending pieces as a whole, and can be rectangular in a cross section perpendicular to the longitudinal direction, and their widened parts 250a, 250b are parallelepiped structures as a whole. Of course, what is shown in the figure is only a schematic example, and pins with other shapes, such as cylindrical shapes, are also within the protection scope of the present disclosure.

[0074] In some embodiments, Figure 5 As shown, the pin 200b may also be provided with an additional locking protrusion 260, which more specifically protrudes outward from the outer peripheral wall of the pin 220b. More specifically, two opposing additional locking protrusions 260 may be provided on the outer peripheral wall of each pin 200b, for example, Figure 5In the specific embodiment shown, the pin 200b includes two additional locking protrusions 260 respectively arranged on two longitudinally extending surfaces opposite to each other. The inner wall of the first through hole 120 of the pin holding portion 100 of the housing 100 may be provided with a corresponding additional locking recess 126. The additional locking recess 126 may cooperate with the additional locking protrusion 260 of the pin 200b to receive the additional locking protrusion 260 when the pin 200b is assembled to the housing 100. More specifically, the additional locking protrusion 260 may be configured to have elasticity so that it may be compressed during installation into the first through hole 120 and may be restored to its original shape when received in the additional locking recess 126, thereby allowing the pin 200b to have a certain retention effect in the longitudinal direction through the cooperation of the additional locking protrusion 260 and the additional locking recess 126. The provision of the additional locking protrusion 260 and the additional locking recess 126 allows the pre-assembly of the pin 200b in the housing 100 and further promotes its stable retention relative to the housing 100. In addition, under certain application conditions, the additional locking protrusion 260 and the additional locking recess 126 can also be configured to cooperate with each other to achieve a stable locking of the pin 200b relative to the housing 100 in the longitudinal direction without the need for other locking members. In addition, it should be noted that although the additional locking protrusion 260 is provided on the shorter pin 200b as shown in the figure, it is not difficult to understand that any type of pin can be provided with the additional locking protrusion 260 according to actual needs, for example Figure 1-2 The pin 200a in the embodiment shown in the figure may also be provided with an additional locking protrusion, and correspondingly, the first through hole 120 may also be provided with an additional locking recess, although this is not specifically shown in the figure.

[0075] In a specific embodiment, Figure 5 As shown, the additional locking protrusion 260 of the pin 200b can be arranged on the widened portion 250a, 250b of the pin 200b located between the first shoulder 230a, 230b and the second shoulder 240a, 240b. More specifically, an additional locking protrusion 260 is arranged on each of the two longitudinal extension surfaces opposite to each other of the widened portion 250a, 250b which is a parallelepiped as a whole.

[0076] In some embodiments, Figure 2 , 4 , 5-7 and 9, the size of the second through hole 320 of the pin lock 300 is set to allow the pin lock 300 to be in the unlocked position ( Figure 6 shown) and locked position ( Figure 7In the locked position, the pin lock 300 is locked relative to the housing 100; in the unlocked position, the pin lock 300 is unlocked relative to the housing 100, so that the pin lock 300 can be removed from the housing 100. That is, when the pins 200a, 200b have been assembled in the first through holes 120 of the pin holding portion 110 of the housing 100, and the pin lock 300 has been placed on the housing 100 so that each pin 200a, 200b passes through the corresponding second through hole 320, the size of the second through hole 320 of the pin lock 300 still allows the pin lock 300 to be displaced in the lateral direction to a certain extent, more specifically, between the unlocked position and the locked position. This dimensional margin in the lateral direction allows the pin lock 300 to be locked and removed relative to the housing 100.

[0077] The electrical connector 10 proposed in the present disclosure may also include a locking mechanism that allows the pin lock 300 to be locked and unlocked relative to the housing 100. Figure 2 , 4 , 5-7 and 9, the locking mechanism may include a transverse locking portion 310 disposed on the pin locking member 300, and the transverse locking portion 310 is configured to lock the pin locking member 300 in a locked position in a transverse direction. More specifically, the transverse locking portion 310 includes an elastic hook 330, and the housing 100 includes a transverse holding portion 130, and the elastic hook 330 can cooperate with the transverse holding portion 130 to achieve transverse locking of the pin locking member 300 relative to the housing 100 in a simple structure and assembly manner.

[0078] In a specific embodiment, Figure 2 , 4 , 5-7 and 9, the transverse locking portion 310 of the pin locking member 300 is an elastic arm, and the free end of the elastic arm 310 is provided with the above-mentioned elastic hook 330, and the elastic hook 330 more specifically includes a first locking inclined surface 331 and a second locking inclined surface 332. The transverse holding portion 130 on the housing 100 is provided in the form of a locking protrusion that cooperates with the elastic hook 330, and the locking protrusion is provided with a third locking inclined surface 131 and a fourth locking inclined surface 132. In the transverse direction, when the pin locking member 300 is moved from Figure 6 The unlocked position shown moves to Figure 7During the locking position shown, when the first locking bevel 331 contacts the third locking bevel 131, the transverse locking portion 310, i.e., the elastic arm, can be elastically deformed away from the third locking bevel 131, so that the first locking bevel 331 can pass over the third locking bevel 131, and the elastic arm 310 returns to the initial state from the elastic deformation state after the passing, so that the second locking bevel 332 is stuck on the fourth locking bevel 132, thereby allowing the pin lock 300 to be locked in the locking position. More specifically, with particular reference to Fig. 9 The elastic arm 310 is provided with a rounded corner 311 at the connection portion between the elastic arm 310 and the pin locking member 300 to avoid stress concentration.

[0079] In some embodiments, Figure 2 , 4 , 5-7 and 9, the pin locking member 300 can be a plate member as a whole. In a specific embodiment, the housing 100 can be provided with a receiving portion 140 at its end near the pin retaining portion 110, more specifically, a receiving portion 140 that is longitudinally recessed relative to the outer end surface 150, and the pin locking member 300 can be received in the receiving portion 140 and can move between an unlocked position and a locked position in the receiving portion 140. More specifically, as shown in the figure, the pin locking member 300 can be provided with a transverse locking portion 310, more specifically, an elastic arm, on each of its two opposite side portions; accordingly, the housing 100 is provided with two transverse clamping portions 130 at its receiving portion 140. More specifically, the transverse clamping portions 130 can be provided on the peripheral wall of the receiving portion 140, and protrude from the peripheral wall toward the receiving portion 140. In a specific embodiment, as particularly referred to Fig. 9 As shown, a reinforcing rib 350 is further provided on the longitudinal outer side surface of the pin locking member 300 to increase the strength of the pin locking member 300 .

[0080] In some embodiments, reference Figure 2 , 4, 5-7 and 9, the locking mechanism may further include a longitudinal locking portion 340 provided on the pin lock 300, the longitudinal locking portion 340 being configured to lock the pin lock 300 in a locked position in the longitudinal direction. More specifically, as shown in the figure, the housing 100 may further be provided with one or more longitudinal clamping portions 160 for cooperating with the longitudinal locking portion 340 of the pin lock 300. More specifically, the longitudinal clamping portion 160 longitudinally extends from the bottom of the receiving portion 140 of the housing 100 for receiving the pin lock 300 to define a longitudinal extension portion 161, and the longitudinal clamping portion further includes a longitudinal locking hook 162 bent from its longitudinal extension portion 161. After the pin lock 300 is installed in place, the longitudinal locking hook 162 abuts against the corresponding longitudinal locking portion 340, thereby locking the pin lock 300 in place on the housing 100 in a simple structure and without adding additional components.

[0081] In some embodiments, Figure 6 and 9 As shown, the pin lock 300 may also be provided with a gripping portion 360 which protrudes outward relative to the main extension plane of the pin lock 300 and is used for an operator to grip to move the pin lock 300 between the unlocking position and the locking position.

[0082] The exemplary implementation of the electrical connector proposed in the present invention is described in detail above with reference to the preferred embodiments. However, those skilled in the art will appreciate that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various technical features and structures proposed in the present invention can be combined in various ways without exceeding the scope of protection of the present invention.

[0083] The scope of the present disclosure is not limited by the above-described embodiments but by the appended claims and their equivalents.

Claims

1. An electrical connector (10), comprising: A housing (100), wherein a pin holding portion (110) is provided in the housing (100), and wherein a plurality of first through holes (120) are provided in the pin holding portion (110); a plurality of pins (200a, 200b), each pin (200a, 200b) comprising a terminating end (210a, 210b) and a connecting end (220a, 220b), each pin (200a, 200b) being disposed in a corresponding one of the plurality of first through holes (120), Each pin (200a, 200b) is removably retained in the corresponding first through hole (120).

2. The electrical connector (10) according to claim 1, wherein: The pins (200a, 200b) are inserted into the first through hole (120) along a first longitudinal direction (D1), The electrical connector (10) further comprises a pin locking member (300) configured to prevent the pins (200a, 200b) from moving along a second longitudinal direction (D2) opposite to the first longitudinal direction (D1).

3. The electrical connector (10) according to claim 2, wherein: The pin locking member (300) is provided with a plurality of second through holes (320), and each of the pins (200a, 200b) is further arranged to pass through a corresponding second through hole (320); The pin (200a, 200b) is provided with a first shoulder (230a, 230b); The first shoulders (230a, 230b) abut against the outer periphery (321) defining the corresponding second through hole (320).

4. The electrical connector (10) according to claim 3, wherein: The second through hole (320) is sized to allow the pin lock (300) to move between an unlocked position and a locked position along a transverse direction perpendicular to the first longitudinal direction (D1).

5. The electrical connector (10) according to claim 4, wherein: The pin lock (300) is provided with a transverse locking portion configured to lock the pin lock (300) in the locking position in the transverse direction.

6. The electrical connector (10) according to claim 5, wherein: The transverse locking portion comprises an elastic hook (330), and the elastic hook (330) is configured to cooperate with the transverse holding portion (130) on the housing (100).

7. The electrical connector (10) according to claim 5 or 6, wherein: The pin lock (300) is also provided with a longitudinal locking portion (340), and the longitudinal locking portion (340) is configured to lock the pin lock (300) in the locking position in the longitudinal direction.

8. The electrical connector (10) according to any one of claims 3 to 6, wherein: The first through hole (120) is provided with a stopper, and the stopper is configured to prevent the pin (200a, 200b) from moving along the first longitudinal direction.

9. The electrical connector (10) according to claim 8, wherein: The pin (200a, 200b) is also provided with a second shoulder (240a, 240b), and the stopper is a step portion (124) abutting against the second shoulder of the pin.

10. The electrical connector (10) according to claim 9, wherein: A widened portion (250a, 250b) of the pin (200a, 200b) is formed between the first shoulder (230a, 230b) and the second shoulder (240a, 240b).

11. The electrical connector (10) according to claim 7, wherein: The pins (200a, 200b) are also provided with additional locking protrusions (260), and the additional locking protrusions (260) are configured to cooperate with corresponding additional locking recesses (126) in the inner wall of the first through hole (120).

12. The electrical connector (10) according to any one of claims 1 to 6, wherein: The terminal ends (210a, 210b) of the pins (200a, 200b) are used to connect to a circuit board (400), and the connection ends (220a, 220b) are used to connect to a matching electrical connection component.

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