Board end connector

Abstract

The invention discloses a board end connector, and the connector comprises an insulator which is provided with a plugging space; the terminal is fixed on the insulator and comprises a terminal contact section, a terminal fixing section and a terminal butt joint section, the terminal contact section convexly extends into the plugging space, the terminal fixing section is fixed with the insulator, and the terminal butt joint section extends out of the insulator; the terminal contact section comprises a first transverse section positioned at the upper position along the vertical direction, a second transverse section positioned at the lower position, and a connecting part for connecting the rear ends of the first transverse section and the second transverse section; when the butt joint module is inserted into the plugging space, butt joint terminals of the butt joint module are correspondingly inserted between the first contact section and the second contact section to achieve electric contact, the connecting part comprises a tail force arm and a middle force arm located in front of the tail force arm, and the tail force arm and the middle force arm are arranged in a spaced mode in the front-back direction. The butt joint stability of the terminal can be improved, and the possibility that the elastic arm of force of the terminal is reduced.

Description

Technical Field

[0001] This application relates to a board - end connector. Background Art

[0002] Reference can be made to the relevant prior art in Chinese Utility Model Patent No. CN219498213U. The front - lift type FPC connector that can prevent the front cover from falling off includes a plastic body and an electrical connection terminal group. The electrical connection terminal group is composed of a number of front - row terminals and rear - row terminals that are neatly arranged and do not contact each other. Each terminal is formed into a bifurcated structure with a forward - opening shape, and an insertion space is formed between the upper and lower bifurcated segments for inserting a docking connector and achieving contact with the docking connector. However, in this FPC connector disclosed in the prior art, the connection position behind the two bifurcated segments is prone to deformation fatigue, resulting in unstable contact with the docking connector.

[0003] Therefore, it is necessary to develop a new board - end connector to solve the above - mentioned technical problems. Summary of the Invention

[0004] The purpose of this application is to provide a board - end connector that can improve the docking stability of the terminals and reduce the possibility of the elastic force arm of the terminals being yielded.

[0005] To achieve the above - mentioned purpose, this application provides the following technical solutions:

[0006] A board - end connector includes:

[0007] An insulator, formed with a plug - in and unplug - out space for inserting a docking module;

[0008] Terminals, fixed to the insulator, including a terminal contact section, a terminal fixing section, and a terminal docking section. At least part of the terminal contact section protrudes into the plug - in and unplug - out space, the terminal fixing section is fixed to the insulator, and the terminal docking section extends out of the insulator;

[0009] The terminal contact section includes a first transverse section located at the upper position in the up - down direction, a second transverse section located at the lower position, and a connecting portion connecting the rear ends of the first transverse section and the second transverse section;

[0010] A first contact section is formed at the front - end position of the first transverse section, and a second contact section is formed at the front - end position of the second transverse section;

[0011] When the docking module is inserted into the plug - in and unplug - out space, the docking terminals of the docking module are correspondingly inserted into the middle of the first contact section and the second contact section in the up - down direction and achieve electrical contact;

[0012] The connecting portion includes a tail force arm and a middle force arm located in front of the tail force arm in the front - rear direction, and a spacer cavity is formed between the tail force arm and the middle force arm in the front - rear direction.

[0013] Furthermore, the deformation flexibility of the middle force arm in the up-and-down direction is better than that of the tail force arm in the up-and-down direction.

[0014] Furthermore, the tail force arm extends in a straight line in the up-and-down direction, and the middle force arm extends in a non-straight line in the up-and-down direction.

[0015] Furthermore, the upper end of the middle force arm is connected to the first transverse segment to form a first connection position, the lower end of the middle force arm is connected to the second transverse segment to form a second connection position, and the first connection position and the second connection position are arranged in a dislocation manner in the front-back direction.

[0016] Furthermore, the first contact segment is formed by extending downward and backward from the front edge of the first transverse segment, and the second contact segment is formed by extending upward and backward from the front edge of the second transverse segment.

[0017] Furthermore, there are two connecting parts, two first transverse segments, and two first contact segments, where: both sides of the second transverse segment are bent upward and extended to form the two connecting parts, and the upper end of each connecting part is connected to one of the first transverse segments.

[0018] Furthermore, a blanking structure is formed among the first contact segment, the first transverse segment, and the connecting part, and a bending structure is formed among the second contact segment, the second transverse segment, and the connecting part.

[0019] Furthermore, two upward protruding upper contact points are formed on the first contact segment, and one downward protruding lower contact point is formed on the second contact segment;

[0020] In the front-back direction, the two upper contact points are arranged at intervals;

[0021] In the front-back direction, the lower contact point is located between the two upper contact points;

[0022] In the left-right direction perpendicular to the front-back direction and the up-and-down direction, the second contact segment is located between the two first contact segments.

[0023] Furthermore, the free end of the second contact segment extends downward and backward obliquely to form a simplified support part, and the simplified support part elastically abuts against the upper surface of the second transverse segment.

[0024] Furthermore, the insulator is formed with a base part and a hollow tubular frame part extending forward from the front end of the base part, and the frame part and the base part jointly enclose the plugging and unplugging space opening forward;

[0025] A mounting cavity is formed by downward depression at the rear position of the upper surface of the base part, and the mounting cavity is open upward and backward;

[0026] The base portion is formed with a terminal fixing groove that penetrates in the front-rear direction to connect the assembly cavity and the insertion / extraction space. The terminal fixing groove includes a lower section groove formed by further downward depression of the bottom wall of the assembly cavity, and an upper section groove that penetrates the base portion forward from the inner front wall of the assembly cavity. The lower section groove extends forward through the base portion and is integrally connected upward to the upper section groove;

[0027] The terminal fixing section is fixed in the lower section groove, and the connecting portion is fixed in the upper section groove;

[0028] The rear cover body is correspondingly assembled in the assembly cavity, including a part that is implanted downward into the lower section groove and pressed against the upper surface of the terminal fixing section, and a part that is implanted forward into the upper section groove and is located between the two connecting portions in the left-right direction.

[0029] Compared with the prior art, the beneficial effects of this application are: it can improve the docking stability of the terminals and reduce the possibility of the elastic force arms of the terminals being yielded. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a perspective schematic view of the board-end connector of this application.

[0031] Figure 2 is Figure 1 the top view of the shown board-end connector.

[0032] Figure 3 is a partial perspective exploded view of the board-end connector of this application, specifically showing the perspective schematic view after the rear cover plate is separated.

[0033] Figure 4 is Figure 3 the enlarged view of the structure within the dashed box in.

[0034] Figure 5 is the perspective exploded view of the board-end connector of this application.

[0035] Figure 6 is from Figure 2 the cross-sectional view along line A-A in.

[0036] Figure 7 is the perspective schematic view of the terminal of the board-end connector of this application.

[0037] Figure 8 is the top view of the terminal of the board-end connector of this application.

[0038] Figure 9 is from Figure 8 the cross-sectional view along line B-B in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0040] In the present application, all directions involved shall be uniformly referenced to Figure 1 wherein the direction of the X-axis is defined as the left-right direction; the direction of the Y-axis is defined as the up-down direction, and the positive direction of the Y-axis is upward; the direction of the Z-axis is defined as the front-back direction, and the positive direction of the Z-axis is backward.

[0041] Please refer to Figures 1 to 9 As shown, a board-end connector disclosed in the present application includes an insulator 1, two terminals 2 fixed in the insulator 1, a metal shielding case 3 wrapped around the periphery of the insulator 1, and a rear cover body 4 assembled at the rear end of the insulator 1. Among them, the insulator 1 is formed with a base portion 101 and a hollow tubular frame portion 102 extending forward from the front end of the base portion 101. The frame portion 102 and the base portion 101 jointly enclose a plugging space 10 with an opening forward for inserting a docking module (not shown).

[0042] Please combine Figure 3 、 Figure 4 As shown, a mounting cavity 103 is formed by downward depression at the rear end position of the upper surface of the base portion 101. The mounting cavity 103 is open upward and backward. The rear cover body 4 is correspondingly assembled in the mounting cavity 103. The base portion 101 is further formed with a terminal fixing groove 104 penetrating in the front-back direction and communicating the mounting cavity 103 with the plugging space 10. The terminal fixing groove 104 includes a lower section groove 1041 formed by further downward depression of the bottom wall 1031 of the mounting cavity 103 and an upper section groove 1042 penetrating the base portion 101 forward from the inner front wall 1032 of the mounting cavity 103. Of course, in the present application, the lower section groove 1041 also extends forward and penetrates the base portion 101 and is integrally communicated with the upper section groove 1042 upward. Among them, the terminal fixing section 22 is fixed in the lower section groove 1041, and the connecting portion 213 is fixed in the upper section groove 1042.

[0043] Each of the terminals 2 includes a terminal contact section 21, a terminal fixing section 22, and a terminal docking section 23. At least a part of the terminal contact section 21 protrudes into the insertion and extraction space 10. The terminal fixing section 22 is inserted and fixed in the terminal fixing groove 104. The terminal docking section 23 extends backward out of the insulator 1. Further, the terminal fixing section 22 is punctured and bent downward and backward to form an inclined anti-withdrawal elastic piece 221. A clamping groove 1043 is correspondingly formed in a concave shape on the inner bottom wall of the lower groove 1041. The anti-withdrawal elastic piece 221 is correspondingly clamped in the clamping groove 1043 to prevent the terminal 2 from withdrawing backward relative to the insulator 1 after assembly is completed.

[0044] Please refer to Figures 3 to 9 As shown, the terminal contact section 21 includes a second horizontal section 212, two connecting portions 213 respectively bent and extended upward from the left and right sides of the second horizontal section 212, and a first horizontal section 211 integrally connected to the upper edge of the connecting portion 213 and extending in the front-rear direction. Among them, the connecting portion 213 connects the first horizontal section 211 and the second horizontal section 212 at a rear position in the front-rear direction. The connecting portion 213 includes a tail force arm 2131 and a middle force arm 2132 located in front of the tail force arm 2131 in the front-rear direction. A spacing cavity 20 is formed between the tail force arm 2131 and the middle force arm 2132 in the front-rear direction.

[0045] Further, the deformation flexibility of the middle force arm 2132 in the up-down direction is better than that of the tail force arm 2131 in the up-down direction. One implementation is that the tail force arm 2131 extends in a straight column shape (also refers to a straight sheet shape or a straight strip shape) in the up-down direction, and the middle force arm 2132 extends in a non-straight column shape (also refers to a non-straight sheet shape or a non-straight strip shape) in the up-down direction. Specifically, the upper end of the middle force arm 2132 is connected to the first horizontal section 211 to form a first connection position 201, and the lower end of the middle force arm 2132 is connected to the second horizontal section 212 to form a second connection position 202. The first connection position 201 and the second connection position 202 are arranged in a staggered manner in the front-rear direction, so that the middle force arm 2132 forms a shape similar to an S shape, improving the deformation flexibility of the middle force arm 2132 in the up-down direction.

[0046] When the docking module is inserted into the insertion and extraction space 10, the docking terminals (not shown) of the docking module are correspondingly inserted between the front ends of the first transverse section 211 and the second transverse section 212, so that the opening at the front end positions of the first transverse section 211 and the second transverse section 212 expands. When the docking terminals of the docking module are pulled out, the opening at the front end positions of the first transverse section 211 and the second transverse section 212 resets and contracts. By designing the middle force arm 2132 with a relatively large deformation flexibility and the tail force arm 2131 with a relatively small deformation flexibility, the possibility of the elastic force arm (the first transverse section 211, the second transverse section 212 and the connecting part 213) of the terminal 2 being yielded can be reduced. Especially at the connecting positions of the first transverse section 211, the second transverse section 212 and the connecting part 213, part of the stress received at the connecting positions of the first transverse section 211 and the second transverse section 212 and the connecting part 213 can be shifted forward to the combining position of the middle force arm 2132 and the first transverse section 211 and the second transverse section 212, so that the contact between the terminal 2 and the docking module is more stable, and the overall service life of the terminal 2 is improved.

[0047] Please refer to Figures 6 to 9 As shown, the front edge of the first transverse section 211 extends downward and backward to form a first contact section 2111; the front edge of the second transverse section 212 extends upward and backward to form a second contact section 2121. A blanking structure (the blanking structure means that it is directly formed by stamping a metal plate without bending) is formed among the first contact section 2111, the first transverse section 211, and the connecting part 213, and a bending structure is formed among the second contact section 2121, the second transverse section 212, and the connecting part 213. Two upper contact points 2110 protruding downward are formed on each of the first contact sections 2111; one lower contact point 2120 protruding upward is formed on the second contact section 2121; along the front-back direction, the two upper contact points 2110 are arranged at intervals; along the front-back direction, the lower contact point 2120 is located between the two upper contact points 2110; along the left-right direction perpendicular to the front-back direction and the up-down direction, the second contact section 2121 is located between the two first contact sections 2111. In this way, in the solution of the present application, four contact points can be formed on the upper surface of the docking terminals of the docking module, one contact point can be formed on the lower surface of the docking terminals of the docking module, and when viewed from above, one contact point formed on the lower surface is located exactly in the middle of the four contact points formed on the upper surface. In this way, the contact stability when the board-end connector of the present application is docked with the docking module can also be improved.

[0048] Please refer to Figure 6 and Figure 9As shown, further, the free end of the second contact section 2121 extends downward and backward obliquely to form a simplified section 2122, and the simplified section 2122 elastically abuts against the upper surface of the second transverse section 212. This can improve the yield resistance of the second contact section 2121 and at the same time can improve the forward contact force between the terminal 2 and the docking terminal of the docking module.

[0049] Please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the rear cover body 4 is made of an insulating material and is correspondingly assembled and implanted into the shown assembly cavity 103, and includes a portion 41 implanted downward into the lower section groove 1041 and crimped to the upper surface of the terminal fixing section 22, a portion 43 implanted forward into the upper section groove 1042 and located between the two connecting portions 213 in the left-right direction, and portions 42 implanted on both sides into grooves (not labeled, Figure 3 visible in

[0050]

[0051] Of course, in other embodiments, only one first transverse section 211 of the terminal 2 may be designed, and correspondingly only one connecting portion 213 is provided, and the second transverse section 212 is designed to have a blanking structure similar to that of the first transverse section 211, so that the first transverse section 211, the second transverse section 212 and the connecting portion 213 are in the same plane. In this embodiment, three contact points are formed between one terminal 2 and the docking terminal of the docking module. Of course, the second transverse section 212 can also be designed to be exactly the same as the first transverse section 211 (mirror symmetric), and at this time, four contact points are formed between one terminal 2 and the docking terminal of the docking module. Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A board - end connector, comprising: an insulator formed with an insertion - extraction space for inserting a docking module; terminals fixed to the insulator, including terminal contact segments, terminal fixing segments, and terminal docking segments. At least part of the terminal contact segments protrude into the insertion - extraction space, the terminal fixing segments are fixed to the insulator, and the terminal docking segments extend out of the insulator; the terminal contact segments include a first transverse segment located at an upper position in the up - down direction, a second transverse segment located at a lower position, and connecting portions respectively connecting the rear ends of the first transverse segment and the second transverse segment; a first contact segment is formed at the front - end position of the first transverse segment, and a second contact segment is formed at the front - end position of the second transverse segment; when the docking module is inserted into the insertion - extraction space, the docking terminals of the docking module are correspondingly inserted between the first contact segment and the second contact segment in the up - down direction and achieve electrical contact. It is characterized in that: the connecting portion includes a tail force arm and a middle force arm located in front of the tail force arm in the front - rear direction, and a spacing cavity is formed between the tail force arm and the middle force arm in the front - rear direction.

2. The board - end connector according to claim 1, characterized in that: the deformation flexibility of the middle force arm in the up - down direction is better than that of the tail force arm in the up - down direction.

3. The board - end connector according to claim 1 or 2, characterized in that: the tail force arm extends linearly in the up - down direction, and the middle force arm extends non - linearly in the up - down direction.

4. The board - end connector according to claim 1 or 2, characterized in that: the upper end of the middle force arm is connected to the first transverse segment to form a first connection position, the lower end of the middle force arm is connected to the second transverse segment to form a second connection position, and the first connection position and the second connection position are arranged in a dislocation in the front - rear direction.

5. The board - end connector according to claim 1 or 2, characterized in that: the first contact segment is formed by the front - edge of the first transverse segment extending downward and backward, and the second contact segment is formed by the front - edge of the second transverse segment extending upward and backward.

6. The board - end connector according to claim 5, characterized in that: there are two connecting portions, two first transverse segments, and two first contact segments, where: both sides of the second transverse segment are bent upward and extended to form the two connecting portions, and the upper end of each connecting portion is connected to one of the first transverse segments.

7. The board - end connector according to claim 6, characterized in that: a blanking - type structure is formed among the first contact segment, the first transverse segment, and the connecting portion, and a bending - type structure is formed among the second contact segment, the second transverse segment, and the connecting portion.

8. The board - end connector according to claim 6, characterized in that: the first contact segment is formed with two upward - protruding upper contact points, and the second contact segment is formed with one downward - protruding lower contact point; in the front - rear direction, the two upper contact points are spaced apart; in the front - rear direction, the lower contact point is located between the two upper contact points; in the left - right direction perpendicular to the front - rear direction and the up - down direction, the second contact segment is located between the two first contact segments.

9. The board - end connector according to claim 5, characterized in that: The free end of the second contact section extends downward and backward to form a simplified support portion, and the simplified support portion elastically abuts against the upper surface of the second transverse section.

10. The board end connector according to claim 1, characterized in that: the insulator is formed with a base portion and a hollow tubular frame portion extending forward from the front end of the base portion, and the frame portion and the base portion jointly enclose the plugging space with an opening forward; a rear end position on the upper surface of the base portion is recessed downward to form an assembly cavity, and the assembly cavity is open upward and backward; the base portion is formed with a terminal fixing groove penetrating in the front-rear direction and communicating the assembly cavity with the plugging space, and the terminal fixing groove includes a lower section groove further recessed downward from the bottom wall of the assembly cavity and an upper section groove penetrating forward through the inner front wall of the assembly cavity and the base portion, and the lower section groove extends forward through the base portion and is integrally communicated with the upper section groove upward; the terminal fixing section is fixed in the lower section groove, and the connecting section is fixed in the upper section groove; a rear cover body, correspondingly assembled in the assembly cavity, includes a part implanted downward into the lower section groove and crimped on the upper surface of the terminal fixing section, and a part implanted forward into the upper section groove and located between the two connecting sections in the left-right direction.

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