Connector terminals and electrical connectors

Abstract

A connector terminal comprising an insertion mating portion, a catch spring, and a catch spring reinforcement structure, wherein the catch spring is disposed on an outer surface of the insertion mating portion, the catch spring having a fixed section and an abutment section, one end of the abutment section being connected to the fixed section and the other end of the abutment section being a free end, the fixed section being connected to the insertion mating portion. In the width direction of the connector terminal, at least one side of the fixed section is connected to the catch spring reinforcement structure, and the abutment section gradually moves away from the insertion mating portion in an extension direction from the fixed section toward the free end of the abutment section. In addition, an electrical connector comprising the above connector terminal is further disclosed in the present application.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrical connectors, and more particularly, to a connector terminal and an electrical connector.

Background Art

[0002] Vehicle components require extremely high reliability requirements. In complex road conditions and extreme situations, reliable electrical connection between vehicle components needs to be guaranteed to ensure the safety of a vehicle during driving. Vehicle components are connected to each other via connectors. Therefore, the terminal structure of a connector needs to maintain reliable contact during intense vibration and in complex environments, so as to guarantee a stable and reliable electrical connection between male terminals and female terminals. The male terminal and female terminal of a connector are usually fixed in the sheath of the connector via a catch spring. The catch spring abuts against the stop portion of the sheath to prevent the terminal from moving within the receiving cavity, thereby ensuring good connection between the male terminal and the female terminal, and enhancing the stable and reliable electrical connection of the connector.

[0003] However, the catch spring of existing connector terminals, especially the catch spring structure for small terminals, has the problem of relatively low strength. In harsh use environments with long-term low-frequency vibration and high-frequency vibration, the relatively low strength of the catch spring is easily affected by external forces, resulting in bending fracture of the catch spring and loosening of the terminal.

Summary of Invention

Problem to be Solved by Invention

[0004] In order to solve the problem that the strength of the catch spring structure of existing connector terminals is low and the stability of electrical connection is affected, the present disclosure provides a connector terminal and an electrical connector.

Means for Solving the Problem

[0005] The technical solutions adopted in this disclosure to solve the above technical problems are as follows:

[0006] According to one aspect, the present disclosure provides a connector terminal, which is a connector terminal. The insertion-mating portion and, A catch spring positioned on the outer surface of the insertion and engagement portion, Fixed sections, and, A contact section having one end connected to a fixed section and the other end being a free end, wherein the fixed section is connected to an insertion engagement portion, and the contact section gradually moves away from the insertion engagement portion in the direction extending from the fixed section to the free end of the contact section. Includes a catch spring, A catch spring reinforcement structure, wherein at least one side of the fixed section is connected to the catch spring reinforcement structure in the width direction of the connector terminal, Includes.

[0007] In some embodiments, both sides of the fixed section may be connected to a catch spring reinforcement structure in the width direction of the connector terminal.

[0008] The end of the fixed section connected to the insertion engagement portion is the first end. The end of the fixed section connected to the contact section is the second end. The distance between the fixed section and the insertion engagement portion gradually increases in the height direction of the connector terminal from the first end to the second end, forming a slope that smoothly transitions to the contact section.

[0009] In some embodiments, the catch spring reinforcement structure is at least one of the following: a structure recessed toward the inside of the insertion engagement portion, and a structure protruding toward the side opposite to the insertion engagement portion.

[0010] In some embodiments, the catch spring reinforcement structure includes sequentially connected connecting portions, transition portions, and retractable portions. The connecting portions, transition portions, and retractable portions are sequentially connected to the side surface of the fixed section in a direction from the first end of the fixed section toward the second end. Both the connecting portions and transition portions are arc-shaped plate structures projecting toward the side opposite to the insertion engagement portion.

[0011] In some embodiments, one end of the connecting portion may be connected to the outer surface of the insertion engagement portion. The other end of the connecting portion may be connected to the end of the transition portion.

[0012] In some embodiments, both the connecting portion and the transition portion are arc-shaped plate structures bent toward the insertion and engagement portion.

[0013] In some embodiments, the end of the transition portion connected to the contraction portion is the third end. The end of the transition portion connected to the connection portion is the fourth end. The transition portion gradually moves away from the insertion engagement portion in the height direction of the connector terminal from the third end to the fourth end. The contraction portion may be connected between the transition portion and the abutment section. The contraction portion is in the shape of a plate that extends obliquely along the transition portion to the abutment section.

[0014] In some embodiments, the insertion engagement portion, the catch spring, and the catch spring reinforcement structure are formed integrally.

[0015] In some embodiments, the contact section is an elongated sheet structure. The length of the contact section ranges from approximately 1.5 mm to approximately 3.2 mm. The width of the contact section ranges from approximately 0.5 mm to approximately 1.4 mm.

[0016] In some embodiments, the angle between the extending direction of the contact section and the longitudinal direction of the connector terminal ranges from about 5° to about 60°.

[0017] In some embodiments, the insertion and engagement portion has a hollow, band-like structure.

[0018] In some embodiments, the head end of the insertion-meshing portion is positioned as an opening along the longitudinal direction of the connector terminal. The elastic contact arm may be positioned within the inner cavity of the insertion-meshing portion.

[0019] In some embodiments, the connector terminal further includes an extension section, a conductive press-fit portion, and an insulated press-fit portion. One end of the extension section is connected to the tail end of the insertion-meeting portion. The insulated press-fit portion is located on the other end of the extension section. The conductive press-fit portion is located on the extension section. The conductive press-fit portion is positioned between the insulated press-fit portion and the insertion-meeting portion.

[0020] In another embodiment, the present disclosure provides an electrical connector comprising a housing and the aforementioned connector terminals. The housing is provided with a housing cavity configured for the insertion of the connector terminals. A retaining portion is provided on the inner wall of the housing cavity. When the connector terminals are inserted into the housing cavity, the contact section abuts against the retaining portion to prevent the connector terminals from moving within the housing cavity.

[0021] According to the connector terminal provided in this disclosure, due to the structurally weak location of the catch spring, catch spring reinforcing structures are provided on both sides of the fixed section. When the catch spring is subjected to external forces, the catch spring reinforcing structures effectively support the fixed section, thereby improving the structural strength of the fixed section of the catch spring. In this way, problems of bending failure or breakage caused by the relatively low strength of the fixed section of the catch spring are prevented. In addition, problems of deformation and breakage caused by low-frequency and high-frequency vibrations of the catch spring in complex environments can be prevented, and movement of the connector terminal can be prevented, thereby improving the reliability and stability of the electrical connection of the electrical connector. [Brief explanation of the drawing]

[0022] [Figure 1] It is a cross-sectional view of a connector terminal according to the present disclosure. [Figure 2] It is a schematic structural diagram of a connector terminal according to the present disclosure. [Figure 3] It is a side view of a catching spring according to the present disclosure. [Figure 4] It is a schematic structural diagram of a catching spring according to the present disclosure. [Figure 5] It is a cross-sectional view of a catching spring according to the present disclosure. [Figure 6] It is a schematic structural diagram of an electrical connector according to the present disclosure. Mode for Carrying Out the Invention

[0023] The following detailed description explains the general principles of the present disclosure, examples of which are further illustrated in the drawings. In the drawings, the same reference signs represent the same or functionally similar elements.

[0024] In order to make the technical problems to be solved, technical solutions, and beneficial effects of the present disclosure more understandable, the present disclosure is further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are not intended to limit the present disclosure, but are merely used to clarify the present disclosure.

[0025] In describing this disclosure, the terms “head end” and “tail end” should be understood as limitations on orientation based on the operating state of the insertion mesh portion. For example, the end of the insertion mesh portion for inserting another electrical device is the head end of the insertion mesh portion, and the end of the insertion mesh portion for connecting to a wire is the tail end of the insertion mesh portion. These terms are used solely to facilitate and simplify the description of this disclosure, and do not indicate or imply that the referred device or element requires to have a particular orientation or to be configured and operated in a particular orientation. Therefore, these terms should not be understood as limitations on this disclosure.

[0026] In this disclosure, the "length direction," "width direction," and "height direction" of the connector terminals are based on the "length direction," "width direction," and "height direction" indicated in Figures 1 and 2.

[0027] Referring to Figures 1 and 2, one embodiment of the present disclosure provides a connector terminal 1 which includes an insertion engagement portion 11, a catch spring 12, and a catch spring reinforcement structure 16. The catch spring 12 is located on the outer surface of the insertion engagement portion 11. The catch spring 12 includes a fixed section 122 and a contact section 121. One end of the contact section 121 is connected to the fixed section 122. The other end of the contact section 121 is a free end. The fixed section 122 is connected to the insertion engagement portion. At least one side of the fixed section 122 is connected to the catch spring reinforcement structure 16 in the width direction of the connector terminal. The contact section 121 extends in a direction gradually away from the insertion engagement portion 11 in the direction from the fixed section 122 toward the free end of the contact section 121.

[0028] As shown in Figure 3, due to the structurally weak location of the catch spring 12, catch spring reinforcing structures 16 are provided on both sides of the fixed section 122. When the catch spring 12 is subjected to external forces, the catch spring reinforcing structures 16 effectively support the fixed section 122, thereby improving the structural strength of the fixed section 122 of the catch spring 12. In this way, bending failure or breakage problems caused by the relatively low strength of the fixed section 122 of the catch spring 12 are prevented. In addition, deformation and breakage problems caused by low-frequency and high-frequency vibrations of the catch spring 12 in complex environments can be prevented, and movement of the connector terminal 1 can be prevented, thereby improving the reliability and stability of the electrical connection of the electrical connector.

[0029] In one embodiment, both sides of the fixed section may be connected to the catch spring reinforcement structure in the width direction of the connector terminal.

[0030] In one embodiment, the catch spring 12 is positioned on any side wall of the insertion engagement portion 11, rather than on the end portion.

[0031] As shown in Figures 4 and 5, in one embodiment, the end of the fixed section 122 connected to the insertion engagement portion 11 is the first end. The end of the fixed section 122 connected to the contact section 121 is the second end. The distance between the fixed section 122 and the insertion engagement portion 11 gradually increases in the height direction of the connector terminal 1 from the first end to the second end, forming a slope that smoothly transitions to the contact section 121.

[0032] The fixed section 122 is used as an extension of the contact section 121 and is configured to connect the contact section 121 to the insertion engagement portion 11. Furthermore, during the insertion of the connector terminal 1 into the housing cavity 21 of the housing 2, the fixed section 122 is elastically deformed so that the catch spring 12 is close to the outer surface of the insertion engagement portion 11. After the connector terminal 1 is inserted into the housing cavity 21 of the housing 2, the elastic deformation of the fixed section 122 is restored, and the contact section 121 is pushed out to restrict the connector terminal 1. In addition, when the connector terminal 1 is subjected to an external force, the contact section 121 directly transmits the force to the fixed section 122. The fixed section 122 supports the contact section 121. Therefore, the structural strength of the fixed section 122 is directly related to the structural strength of the catch spring 12.

[0033] In one embodiment, with respect to the position of the fixed section 122, the catch spring reinforcement structure 16 is at least one of the following: a structure recessed in the direction toward the inside of the insertion engagement portion 11, and a structure protruding in the direction opposite to the insertion engagement portion 11.

[0034] By positioning a recessing structure or a protruding structure in cooperation with the fixed section 122, the structural strength of the fixed section 122 is improved.

[0035] In some embodiments, the catch spring reinforcement structure 16 includes sequentially connected connecting portions 161, transition portions 162, and retractable portions 163. The connecting portions 161, transition portions 162, and retractable portions 163 are connected to the side surfaces of the fixed section 122 in a direction from the first end to the second end of the fixed section 122. Both the connecting portions 161 and the transition portions 162 are arc-shaped plate structures that project in a direction opposite to the insertion engagement portion 11.

[0036] In one embodiment, one end of the connecting portion 161 may be connected to the outer surface of the insertion engagement portion 11. The other end of the connecting portion 161 may be connected to the end of the transition portion 162.

[0037] In one embodiment, both the connecting portion 161 and the transition portion 162 are arc-shaped plate structures bent toward the insertion-meeting portion 11. One side of the connecting portion 161 may be connected to the fixed section 122. The other side of the connecting portion 161 may be bent toward the insertion-meeting portion 11. One side of the transition portion 162 may be connected to the fixed section 122. The other side of the transition portion 162 may be bent toward the insertion-meeting portion 11.

[0038] In one embodiment, the end of the transition portion 162 connected to the contraction portion 163 is the third end. The end of the transition portion 162 connected to the connection portion 161 is the fourth end. The transition portion 162 gradually moves away from the insertion engagement portion 11 in the height direction of the connector terminal 1 from the third end to the fourth end. The contraction portion 163 may be connected between the transition portion 162 and the abutment section 121. The contraction portion 163 is in the shape of a plate that extends diagonally along the transition portion 162 to the abutment section 121.

[0039] The arc-shaped plate structures of the connecting portion 161 and the transition portion 162 enhance the overall strength of the fixed section 122. The transition portion 162 and the contact section 121 are smoothly transitioned through the contraction portion 163. In a catch spring 12 structure having equal length, equal width, and equal thickness, the catch spring 12 having the connecting portion 161, the transition portion 162, and the contraction portion 163 is used as a catch spring reinforcement structure 16 that can greatly improve the strength of the catch spring against bending.

[0040] In one embodiment, the insertion engagement portion 11, the catch spring 12, and the catch spring reinforcement structure 16 are formed integrally.

[0041] In some embodiments, the insertion engagement portion 11, the catch spring 12, and the catch spring reinforcement structure 16 are obtained by machining the same metal blank. The metal blank may be one or more selected from copper or its alloys, aluminum or its alloys, iron or its alloys, nickel or its alloys, and magnesium or its alloys.

[0042] In another embodiment, the insertion engagement portion 11, the catch spring 12, and the catch spring reinforcement structure 16 may alternatively be a split structure.

[0043] In one embodiment, the contact section 121 is an elongated sheet structure. The length of the contact section 121 ranges from approximately 1.5 mm to approximately 3.2 mm. The width of the contact section 121 ranges from approximately 0.5 mm to approximately 1.4 mm.

[0044] In some embodiments, the "length of the contact section 121" is indicated by identifier L in Figure 4. The "width of the contact section 121" is indicated by identifier W in Figure 1.

[0045] In one embodiment, the angle between the extending direction of the contact section 121 and the longitudinal direction of the connector terminal ranges from about 5° to about 60°.

[0046] In some embodiments, the "angle contained between the contact section 121 and the outer surface of the insertion engagement portion 11" is indicated by identifier a in Figure 5. The catch spring 12 is positioned on the top outer surface of the insertion engagement portion 11. The angle contained between the contact section 121 and the outer surface of the insertion engagement portion 11 is the angle contained between the contact section 121 and the top outer surface of the insertion engagement portion 11.

[0047] In one embodiment, the insertion and engagement portion 11 has a hollow, band-shaped structure.

[0048] In one embodiment, the insertion engagement portion 11 is a hollow band thin-walled structure formed by winding wire.

[0049] In some embodiments, as shown in Figure 2, a sheet of metal may be bent along multiple bends to obtain the insertion-meshing portion 11. The direction from the head end to the tail end of the insertion-meshing portion 11 is used as the preset direction. The bends of the insertion-meshing portion 11 are parallel to the preset direction. By setting the number of bends and the bending angle, insertion-meshing portions 11 with different cross-sectional shapes, such as male terminal shapes or female terminal shapes, can be obtained.

[0050] As shown in Figures 1 and 2, in one embodiment, the insertion engagement portion 11 is a female terminal. In the longitudinal direction of the connector terminal 1, the head terminal of the insertion engagement portion 11 is positioned as an opening, and the elastic contact arm 111 may be positioned within the inner cavity of the insertion engagement portion 11.

[0051] The elastic contact arm 111 and the insertion mesh portion 11 are integrally formed. The elastic contact arm 111 is positioned at the edge of the blank before the insertion mesh portion 11 is bent, and by bending, it is wound and enters the inner cavity of the insertion mesh portion 11. One end of the elastic contact arm 111 may be fixed at the opening of the insertion mesh portion 11. The other end of the elastic contact arm 111 may be deflected toward the inner cavity of the insertion mesh portion 11 so as to float in the middle of the inner cavity of the insertion mesh portion 11 in order to form an elastic structure. An arc-shaped curved portion 1111 may be formed on the elastic contact arm 111. A projection is provided on the male terminal configured to fit the insertion mesh portion 11. When the male terminal is inserted into the cavity of the insertion mesh portion 11, the projection elastically contacts the arc-shaped curved portion 1111 of the elastic contact arm 111, thereby enabling an electrical connection.

[0052] In another embodiment, the insertion-meshing portion 11 may alternatively be a male terminal. A groove-like structure is provided on the female terminal fitted to the insertion-meshing portion 11. The electrical connector is positioned within the groove-like structure. The insertion-meshing portion 11 is inserted into the groove-like structure and contacts the corresponding electrical connector in order to perform an electrical connection.

[0053] As shown in Figure 2, in one embodiment, the connector terminal 1 further includes an extension section 13, a conductive press-fit portion 14, and an insulating press-fit portion 15. One end of the extension section 13 may be connected to the tail end of the insertion-meeting portion 11. The insulating press-fit portion 15 may be located on the other end of the extension section 13. The conductive press-fit portion 14 may be located on the extension section 13. The conductive press-fit portion 14 is positioned between the insulating press-fit portion 15 and the insertion-meeting portion 11.

[0054] The conductive press-fit portion 14 includes a first press-fit portion 141 and a second press-fit portion 142. The insulating press-fit portion 15 includes a third press-fit portion 151 and a fourth press-fit portion 152. The first press-fit portion 141 and the second press-fit portion 142 are arranged in a substantially V-shape on both sides of the middle portion of the extension section 13. The first press-fit portion 141 and the second press-fit portion 142 are configured to be pressed close together to secure the conductive portion of the wire. The third press-fit portion 151 and the fourth press-fit portion 152 are arranged in a substantially V-shape on both sides of the tail end of the extension section 13. The third press-fit portion 151 and the fourth press-fit portion 152 are configured to be pressed close together to secure the insulating portion of the wire.

[0055] The extension section 13 is a thin-walled strip structure having a substantially U-shaped cross-section. The extension section 13 is obtained by extending rearward from the tail end of the insertion engagement portion 11. The first press-fit portion 141 and the second press-fit portion 142 are located on the two side walls of the extension section 13, respectively, and extend outward. The third press-fit portion 151 and the fourth press-fit portion 152 are located on the two side walls of the tail end of the extension section 13, respectively, and extend outward. In the extending direction of the extension section 13, the third press-fit portion 151 and the fourth press-fit portion 152 are offset from each other.

[0056] During use, connector terminal 1 needs to be electrically connected to a wire. The wire (not shown in the figure) includes a conductive portion with the insulating skin stripped at the front end and an insulating portion wrapped in the insulating skin at the rear end. Parts of the conductive portion and the insulating portion are housed in grooves in extension section 13. The conductive portion is positioned between the first press-fit portion 141 and the second press-fit portion 142. The insulating portion is positioned between the third press-fit portion 151 and the fourth press-fit portion 152. The first press-fit portion 141 and the second press-fit portion 142 are bent inward toward each other to form a clamping and electrical connection function for the conductive portion. The third press-fit portion 151 and the fourth press-fit portion 152 are pressed close together toward each other and surround the outer surface of the insulating portion to form a fixing function on the insulating portion.

[0057] In one embodiment, the first press-fit portion 141, the second press-fit portion 142, the third press-fit portion 151, and the fourth press-fit portion 152 each have a sheet-like fin structure.

[0058] In one embodiment, the angle between the first press-fit portion 141 and the second press-fit portion 142 ranges from approximately 120° to approximately 150° to facilitate the mounting and securing of the conductive portion of the electric wire.

[0059] In one embodiment, the angle between the third press-fit portion 151 and the fourth press-fit portion 152 ranges from approximately 120° to approximately 150° to facilitate the mounting and securing of the insulated portion of the electric wire.

[0060] In one embodiment, the extension section 13, the first press-fit portion 141, the second press-fit portion 142, the third press-fit portion 151, the fourth press-fit portion 152, and the insertion engagement portion 11 are integrally formed.

[0061] As shown in Figure 6, another embodiment of the present disclosure provides an electrical connector comprising a housing 2 and the aforementioned connector terminal 1. The housing 2 is provided with a housing cavity 21 configured for the insertion of the connector terminal 1. The inner wall of the housing cavity 21 is provided with a retaining portion 22. When the connector terminal 1 is inserted into the housing cavity 21, the contact section 121 can contact the retaining portion 22 to prevent the connector terminal 1 from moving within the housing cavity 21.

[0062] Through the aforementioned connector terminal 1, the electrical connector has relatively good electrical performance. The catch spring 12 provides higher positional limiting strength to prevent deformation and breakage of the catch spring 12 caused by low-frequency or high-frequency vibrations of the connector terminal 1, thereby ensuring the reliability and stability of the electrical connection of the electrical connector.

[0063] In one embodiment, a through hole communicating with the retaining portion 22 may be provided on the side wall of the housing 2. When the connector terminal 1 needs to be pulled out of the housing cavity 21, the contact section 121 of the catch spring 12 is compressed through the through hole, separating the contact section 121 of the catch spring 12 from the retaining portion 22, thereby disabling the restricting function for the connector terminal 1.

[0064] This disclosure has been described in detail with reference to its preferred embodiments, but these preferred embodiments are not intended to limit this disclosure. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this disclosure shall be within the scope of protection of this disclosure. [Explanation of symbols]

[0065] 1 Connector terminals 11 Insertion and occlusion portion 111 Elastic contact arm 1111 Arc-shaped curved section 12 Catch spring 121 Contact Section 122 Fixed Section 13 Extension Section 14. Conductive press-fit portion 141 First press-fit portion 142 Second press-fit portion 15. Insulated press-fit portion 151 Third press-fit portion 152 Fourth press-fit portion 16. Catch spring reinforcement structure 161 Connection part 162 Transition section 163 Contraction part 2 Housing 21 Containment Cavity 22 Stopper

Claims

1. Connector terminals, The insertion and occlusal portion, A catch spring positioned on the outer surface of the insertion engagement portion, Fixed sections, and, A contact section having one end connected to the fixed section and the other end being a free end, wherein the fixed section is connected to the insertion engagement portion, and the contact section gradually moves away from the insertion engagement portion in the direction extending from the fixed section to the free end of the contact section. The catch spring comprises, A catch spring reinforcement structure comprising a catch spring reinforcement structure wherein at least one side of the fixed section is connected to the catch spring reinforcement structure in the width direction of the connector terminal, The end of the fixed section connected to the insertion engagement portion is the first end, the end of the fixed section connected to the contact section is the second end, and the distance between the fixed section and the insertion engagement portion gradually increases in the height direction of the connector terminal from the first end to the second end, forming a slope that smoothly transitions to the contact section. The catch spring reinforcement structure comprises sequentially connected connecting portions, transition portions, and contraction portions, the connecting portions, transition portions, and contraction portions are sequentially connected to the side surface of the fixed section in a direction from the first end to the second end of the fixed section, and both the connecting portions and transition portions are arc-shaped plate structures that protrude in a direction opposite to the insertion engagement portion. A connector terminal in which both the connecting portion and the transition portion are arc-shaped plate structures bent in the direction toward the insertion and engagement portion.

2. The connector terminal according to claim 1, wherein both sides of the fixed section are connected to the catch spring reinforcing structure in the width direction of the connector terminal.

3. The connector terminal according to claim 1, wherein the catch spring reinforcing structure has a structure that protrudes in a direction opposite to the insertion and engagement portion.

4. The connector terminal according to claim 1, wherein one end of the connecting portion is connected to the outer surface of the insertion engagement portion, and the other end of the connecting portion is connected to the end of the transition portion.

5. The connector terminal according to claim 1, wherein the end of the transition portion connected to the contraction portion is a third end, the end of the transition portion connected to the connection portion is a fourth end, the transition portion gradually moves away from the insertion engagement portion in the height direction of the connector terminal from the third end to the fourth end, the contraction portion is connected between the transition portion and the contact section, and the contraction portion is in the shape of a plate that extends diagonally with respect to the transition portion along the transition portion to the contact section.

6. The connector terminal according to claim 1, wherein the insertion engagement portion, the catch spring, and the catch spring reinforcing structure are integrally formed.

7. The connector terminal according to claim 1, wherein the contact section is an elongated sheet structure, the length of the contact section is approximately 1.5 mm to approximately 3.2 mm, and the width of the contact section is approximately 0.5 mm to approximately 1.4 mm.

8. The connector terminal according to claim 1, wherein the angle between the extending direction of the contact section and the longitudinal direction of the connector terminal ranges from about 5° to about 60°.

9. The connector terminal according to claim 1, wherein the insertion and engagement portion has a hollow band structure.

10. The connector terminal according to claim 1, wherein, in the longitudinal direction of the connector terminal, the head end of the insertion engagement portion is arranged as an opening, and the elastic contact arm is arranged in the inner cavity of the insertion engagement portion.

11. The connector terminal according to claim 1, further comprising an extension section, a conductive press-fit portion, and an insulating press-fit portion, wherein one end of the extension section is connected to the tail end of the insertion-meeting portion, the insulating press-fit portion is positioned on the other end of the extension section, the conductive press-fit portion is positioned on the extension section, and the conductive press-fit portion is positioned between the insulating press-fit portion and the insertion-meeting portion.

12. An electrical connector comprising a housing and a connector terminal according to any one of claims 1 to 11, wherein the housing is provided with a housing cavity configured for the insertion of the connector terminal, a retaining portion is provided on the inner wall of the housing cavity, and when the connector terminal is inserted into the housing cavity, the contact section abuts against the retaining portion to prevent the connector terminal from moving within the housing cavity.

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