Electrical connector with improved structure

Abstract

The present invention discloses an electrical connector with an improved structure, comprising an upper insulating body with a communicating upper terminal receiving groove and an upper terminal receiving hole, a lower insulating body with a communicating lower terminal receiving groove and a lower terminal receiving hole, and a terminal integral part composed of an integrally formed insulating part and at least one conductive terminal, wherein the integrally formed insulating part is fixed in a cavity space jointly formed by the upper terminal receiving groove and the lower terminal receiving groove, and the upper elastic contact part and the elastic contact part can respectively extend out of the outer sides of the upper insulating body and the lower insulating body through the upper terminal receiving hole and the lower terminal receiving hole. The present invention is clamped between the circuit board and the chip module while the chip component and the circuit board are assembled, and the conductive terminals on the connector are elastically contacted and connected with the chip module and the circuit board respectively, so as to realize effective transmission of electrical signals, facilitate assembly, avoid welding process, reduce the assembly cost of the circuit board, facilitate replacement and repair of the connector when damaged, and reduce the scrap rate of the circuit board.

Description

Technical Field

[0001] The present invention relates to a connector, in particular to an electrical connector with improved structure. Background Art

[0002] Connectors are used to achieve electrical connection and signal transmission between two conductive parts. Electronic products assembled on circuit boards require connectors for electrical connection. Currently, welding is used to weld the connector to the circuit board. Then, electronic components, such as chips, are installed on the connector by plugging or pressing with auxiliary brackets. Connectors are used to enable electronic components (such as chips) to be removed from the circuit board for maintenance and electronic product upgrades. However, since the connector is welded to the circuit board, welding is required during circuit board assembly, which is a complex process and is prone to poor welding, which affects signal transmission between the connector and the circuit board. The welding materials also cause a certain degree of environmental pollution, affecting the production efficiency of the circuit board assembly. At the same time, since the connector is welded to the circuit board, once the connector is damaged, the circuit board will be scrapped and the connector cannot be replaced. At the same time, during the upgrade process of electronic components (such as chips), their contact points must be the same as those of the connector welded on the circuit board. Therefore, the connector on the circuit board often does not match the upgraded electronic component (such as chip), hindering the upgrade of electronic products and requiring the entire circuit board to be scrapped, resulting in energy loss and environmental pollution. Summary of the Invention

[0003] In order to make up for the above shortcomings, the present invention provides an electrical connector with an improved structure, which avoids being welded to the circuit board, realizes the positioning of the connector and the conduction of the circuit while the chip module and the circuit board are assembled, and facilitates the maintenance and upgrading of the circuit board.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an electrical connector with an improved structure, comprising an upper insulating body, a lower insulating body and a terminal integrated part;

[0005] The upper insulating body is provided with at least one set of upper terminal receiving mechanisms, the upper terminal receiving structure comprising an upper terminal receiving groove with a closed upper end and an open lower end, and at least one upper terminal receiving hole extending vertically and communicating with the upper terminal receiving groove;

[0006] The lower insulating body is provided with at least one set of lower terminal receiving mechanisms, the lower terminal receiving structure comprising a lower terminal receiving groove with a closed lower end and an open upper end, and at least one lower terminal receiving hole extending vertically and communicating with the lower terminal receiving groove;

[0007] The terminal integral part includes an integrally formed insulating part and at least one conductive terminal, wherein the at least one conductive terminal is fixedly arranged on the integrally formed insulating part at intervals, and the conductive terminal is provided with an upper elastic contact portion and a lower elastic contact portion capable of elastically telescopic movement in the vertical direction;

[0008] The upper insulating body and the lower insulating body can be fixedly stacked from top to bottom to form an integrated structure, the one-piece molded insulating part of the terminal integral part can be fixedly accommodated in the cavity space jointly formed by the upper terminal receiving groove and the lower terminal receiving groove, the upper elastic contact part and the elastic contact part of the conductive terminal are respectively accommodated in the upper terminal receiving hole and the lower terminal receiving hole, and the upper elastic contact part and the elastic contact part of the conductive terminal can respectively extend to the outside of the upper insulating body and the lower insulating body through the upper terminal receiving hole and the lower terminal receiving hole.

[0009] As a further improvement of the present invention, the conductive terminal and the integrally formed insulating member are formed into an integral structure by in-mold injection molding.

[0010] As a further improvement of the present invention, the one-piece insulating member is a columnar structure with a non-circular cross section, and a plurality of conductive terminals are fixedly arranged on the one-piece insulating member in parallel and at intervals.

[0011] As a further improvement of the present invention, at least one side wall of the upper terminal receiving groove and the lower terminal receiving groove is provided with a protruding upper fixing rib and a lower fixing rib, and the side wall of the one-piece molded insulating part is provided with a fixing groove corresponding one-to-one to the upper fixing rib and the lower fixing rib, and the upper fixing rib and the lower fixing rib can be respectively inserted into the fixing groove one-to-one.

[0012] As a further improvement of the present invention, a plurality of upper fixed ribs are respectively arranged on the side walls connected to the upper terminal receiving groove and the upper terminal receiving hole, and the upper fixed ribs and the upper terminal receiving holes are alternately arranged, and a plurality of lower fixed ribs are respectively arranged on the side walls connected to the lower terminal receiving groove and the lower terminal receiving hole, and the lower fixed ribs and the lower terminal receiving holes are alternately arranged.

[0013] As a further improvement of the present invention, the upper insulating body is provided with at least two connection positioning holes or at least two connection positioning columns, and the lower insulating body is provided with at least two connection positioning columns or at least two connection positioning holes. The connection positioning columns on the upper insulating body and the lower insulating body can be fixedly plugged into the connection positioning holes in a one-to-one correspondence.

[0014] As a further improvement of the present invention, the connection positioning column and the connection positioning hole are fixed in position by interference fit, hot melt connection, snap connection or connection with a connector.

[0015] As a further improvement of the present invention, the conductive terminal includes a base, an upper elastic arm and a lower elastic arm, the base is fixed on an integrally formed insulating part, the upper elastic arm and the lower elastic arm are bent from the upper end and the lower end of the base and extend into the upper terminal receiving hole and the lower terminal receiving hole respectively, the upper elastic contact portion and the lower elastic contact portion are respectively V-shaped bending structures formed by bending the upper elastic arm and the lower elastic arm, the V-shaped bending structure of the upper elastic contact portion opens downward, and the V-shaped bending structure of the lower elastic contact portion opens upward.

[0016] As a further improvement of the present invention, the free end of the upper elastic arm is bent downward to form an avoidance bend portion toward the base, and the free end of the lower elastic arm is bent upward to form an avoidance bend portion toward the base.

[0017] As a further improvement of the present invention, the width dimension of the base is larger than the width dimension of the upper elastic arm and the lower elastic arm, and the base is tightly clamped between the two side walls of the upper terminal receiving groove and the lower terminal receiving groove along the terminal width direction, and the gap between the upper elastic arm and the lower elastic arm and the inner side walls in the width direction of the upper terminal receiving groove and the lower terminal receiving groove gradually increases from the root to the free end.

[0018] The beneficial technical effect of the present invention is as follows: the present invention forms an upper terminal receiving groove and a lower terminal receiving groove on the upper insulating body and the lower insulating body respectively, and fixes the integrally formed insulating part of the terminal integral part after the upper terminal receiving groove and the lower terminal receiving groove are connected, and at the same time, the upper elastic contact part and the lower elastic contact part on the conductive terminal of the terminal integral part extend to the outside of the upper insulating body and the lower insulating body respectively through the upper terminal receiving hole and the lower terminal receiving hole, for electrical contact with the chip module and the circuit board, so that the chip module, the conductive terminal and the circuit board form a conductive path. The connector of the present invention does not need to be welded on the circuit board. When the chip component and the circuit board are assembled through the connecting part, the connector is clamped between the circuit board and the chip module. The conductive terminals on the connector are elastically contacted and connected with the chip module and the circuit board respectively, realizing effective transmission of electrical signals, convenient assembly, avoiding welding process, reducing the assembly cost of the circuit board, and convenient replacement and repair of the damaged connector. It is also convenient to upgrade the chip module on the circuit board, realizing full utilization of the circuit board, reducing the scrap rate of the circuit board, and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of the present invention in use;

[0020] Figure 2 This is an exploded view of the present invention in use;

[0021] Figure 3 An exploded view of the present invention;

[0022] Figure 4 This is an exploded view of the assembly of the terminal integral part, the upper insulating body and the lower insulating body of the present invention;

[0023] Figure 5 A perspective view of the present invention;

[0024] Figure 6 for Figure 5 Middle AA section view;

[0025] Figure 7 for Figure 6 Enlarged view of middle part B;

[0026] Figure 8 This is a first stereoscopic view of the upper insulating body of the present invention;

[0027] Figure 9 This is a second three-dimensional view of the upper insulating body of the present invention;

[0028] Figure 10 A three-dimensional diagram of the lower insulating body of the present invention;

[0029] Figure 11 This is an exploded view of the terminal integrated part of the present invention;

[0030] Figure 12 It is a three-dimensional diagram of the conductive terminal of the present invention. DETAILED DESCRIPTION

[0031] Embodiment: An electrical connector with an improved structure includes an upper insulating body 11, a lower insulating body 12 and a terminal integrated part 13;

[0032] The upper insulating body 11 is provided with at least one set of upper terminal receiving mechanisms, the upper terminal receiving structure comprising an upper terminal receiving groove 111 with a closed upper end and an open lower end, and at least one upper terminal receiving hole 112 extending vertically and communicating with the upper terminal receiving groove 111;

[0033] The lower insulating body 12 is provided with at least one lower terminal receiving mechanism, the lower terminal receiving structure comprising a lower terminal receiving groove 121 with a closed lower end and an open upper end, and at least one lower terminal receiving hole 122 extending vertically and communicating with the lower terminal receiving groove 121;

[0034] The terminal integrated part 13 includes an integrally formed insulating part and at least one conductive terminal, at least one conductive terminal being fixedly arranged on the integrally formed insulating part at intervals, and the conductive terminal being provided with an upper elastic contact portion and a lower elastic contact portion capable of elastically telescopic movement in the vertical direction;

[0035] The upper insulating body 11 and the lower insulating body 12 can be fixedly stacked from top to bottom to form an integrated structure, and the one-piece molded insulating part of the terminal integral part 13 can be fixedly accommodated in the cavity space jointly formed by the upper terminal receiving groove 111 and the lower terminal receiving groove 121. The upper elastic contact portion and the elastic contact portion of the conductive terminal are respectively accommodated in the upper terminal receiving hole 112 and the lower terminal receiving hole 122, and the upper elastic contact portion and the elastic contact portion of the conductive terminal can respectively extend to the outside of the upper insulating body 11 and the lower insulating body 12 through the upper terminal receiving hole 112 and the lower terminal receiving hole 122.

[0036] After assembling the terminal integrated part 13 into the cavity space formed by the upper terminal receiving groove 111 of the upper insulating body 11 and the lower terminal receiving groove 121 of the lower insulating body 12, the upper elastic contact part and the lower elastic contact part extend out from the upper terminal receiving hole 112 of the upper insulating body 11 and the lower terminal receiving hole 122 of the lower insulating body 12 respectively. When in use, it is only necessary to place the chip module 2 and the circuit board 3 on the upper and lower sides of the connector 1 respectively, and install the chip module on the circuit board through the connecting piece. The connector is tightly clamped between the chip module and the circuit board, and the upper elastic contact part of the connector and the elastic contact part of the chip module are in contact with each other. The contact is conductive, and the lower elastic contact part of the connector is in elastic contact with the circuit board, thereby forming an electrical connection path between the chip module and the circuit board. This structure avoids welding the connector and the circuit board. When the welding-free electrical connector is damaged and needs to be repaired or replaced, it can be quickly achieved by disassembling the connector, avoiding waste caused by damage to parts or the inability to disassemble after replacement, reducing the cost of repairing and upgrading electronic equipment, and reducing the pollution of the environment caused by discarded electronic products. In addition, the present application has a simple structure, a small size, is easy to manufacture and assemble, and is more stable when used on a circuit board for electrical conduction.

[0037] The conductive terminal and the integrally formed insulating member are formed into an integral structure through in-mold injection molding. This method can achieve stable connection and precise positioning of the conductive terminal and the integrally formed insulating member. In addition, the conductive terminal and the integrally formed insulating member can also be connected by a snap-fit ​​connection or a connector, etc. These are equivalent replacement structures that can be easily imagined by those skilled in the art based on this application and are within the scope of protection of this application.

[0038] The integrally molded insulating member is a cylindrical structure with a non-circular cross-section. Several conductive terminals are fixedly mounted on the integrally molded insulating member in parallel and spaced apart arrangements. This structure allows the integrally molded insulating member to be positioned within the upper terminal receiving slots 111 and lower terminal receiving slots 121. Upper terminal receiving holes 112 and lower terminal receiving holes 122 are formed in an array on the upper and lower insulating bodies 11 and 12, with each row of upper and lower terminal receiving holes 112 and 122 corresponding to one upper and lower terminal receiving slots 111 and 121.

[0039] At least one side wall of the upper terminal receiving groove 111 and the lower terminal receiving groove 121 is provided with a protruding upper and lower fixing ribs. The side walls of the one-piece molded insulating member are provided with fixing grooves corresponding to the upper and lower fixing ribs, and the upper and lower fixing ribs can be inserted into the fixing grooves in a one-to-one correspondence. The upper and lower fixing ribs further position the one-piece molded insulating member, preventing it from shaking within the cavity formed by the upper terminal receiving groove 111 and the lower terminal receiving groove 121, and further improving the positioning accuracy of the upper and lower elastic contact portions.

[0040] A plurality of upper fixing ribs are provided on the sidewalls connecting the upper terminal receiving groove 111 and the upper terminal receiving hole 112, and the upper fixing ribs are arranged alternately with the upper terminal receiving hole 112. A plurality of lower fixing ribs are provided on the sidewalls connecting the lower terminal receiving groove 121 and the lower terminal receiving hole 122, and the lower fixing ribs are arranged alternately with the lower terminal receiving hole 122. This structure ensures the positional accuracy of each conductive terminal.

[0041] The upper insulating body 11 is provided with at least two connection positioning holes (113) or at least two connection positioning columns 123, and the lower insulating body 12 is provided with at least two connection positioning columns 123 or at least two connection positioning holes. The connection positioning columns 123 on the upper insulating body 11 and the lower insulating body 12 can be fixedly plugged into the connection positioning holes in a one-to-one correspondence. The upper insulating body 11 and the lower insulating body 12 are assembled and positioned by plugging the connection positioning holes into the connection positioning columns 123. The connection positioning holes are preferably symmetrically distributed on two opposite sides of the upper insulating body 11 to achieve uniform distribution of connection force. For example, they are distributed on the four corners of the upper insulating body 11, and the connection positioning columns 123 are aligned with the connection positioning holes.

[0042] The connection and positioning post 123 is secured to the connection and positioning hole by an interference fit, a hot melt connection, a snap-fit ​​connection, or a connector connection. To enhance the strength of the interference fit, a plurality of ribs extending along the generatrix of the connection and positioning post 123 may be evenly spaced on the outer circumferential wall. The ribs are in close contact with the connection and positioning hole to form an interference fit. A hot melt connection requires the height of the connection and positioning post 123 to be greater than the length of the connection and positioning hole. The above connection methods can be flexibly selected based on design requirements.

[0043] The conductive terminal includes a base 1321, an upper elastic arm 1322 and a lower elastic arm 1323. The base 1321 is fixed on an integrally formed insulating part. The upper elastic arm 1322 and the lower elastic arm 1323 are bent from the upper end and the lower end of the base 1321 and extend into the upper terminal receiving hole 112 and the lower terminal receiving hole 122 respectively. The upper elastic contact portion and the lower elastic contact portion are V-shaped bending structures formed by bending the upper elastic arm 1322 and the lower elastic arm 1323 respectively. The V-shaped bending structure of the upper elastic contact portion opens downward, and the V-shaped bending structure of the lower elastic contact portion opens upward. The base 1321 is used to be fixedly connected to the integrated insulating part, and the conductive terminal forms a structure that can elastically swing up and down through the upper elastic arm 1322 and the lower elastic arm 1323, realizing the upper and lower elastic movement of the upper elastic contact part and the lower elastic contact part, thereby achieving close contact and electrical conduction between the chip module and the circuit board. The upper elastic contact part and the lower elastic contact part are respectively bent by the upper elastic arm 1322 and the lower elastic arm 1323. The structure is simple and easy to process and manufacture. The upper elastic contact part and the lower elastic contact part are bent to form a V-shaped bending structure, which extends from the upper end opening of the upper terminal receiving hole 112 and the lower end opening of the lower terminal receiving hole 122, and is used to elastically contact with the chip module and the circuit board. In addition to this structure, the upper elastic contact part and the lower elastic contact part on the conductive terminal can also be elastic sliding parts or elastic elements on the upper and lower sides of the terminals fixedly installed in the upper terminal receiving groove 111 and the lower terminal receiving groove 121, such as springs, springs, elastic sliding sheets, etc.

[0044] The free end of the upper elastic arm 1322 is bent downward to form a relief bend toward the base 1321, and the free end of the lower elastic arm 1323 is bent upward to form a relief bend toward the base 1321. By bending the free ends of the upper elastic arm 1322 and the lower elastic arm 1323 in opposite directions, smooth arc surfaces are formed, thereby preventing the upper elastic arm 1322 and the lower elastic arm 1323 from interfering with the side walls of the upper terminal receiving hole 112 and the lower terminal receiving hole 122 during elastic deformation.

[0045] The width of the base 1321 is greater than the width of the upper and lower elastic arms 1322, 1323. The base 1321 is tightly sandwiched between the side walls of the upper and lower terminal receiving slots 111, 121 along the width direction of the terminals. The gaps between the upper and lower elastic arms 1322, 1323 and the inner side walls of the upper and lower terminal receiving slots 111, 121 gradually increase from their bases toward their free ends. This structure ensures that the conductive terminals will not interfere with the side walls of the upper and lower terminal receiving slots 112, 122 during smooth elastic movement up and down within the upper and lower terminal receiving slots 112, 122. Furthermore, the wider base fabric ensures stable positioning of the conductive terminals on the integrated insulating body.

Claims

1. An electrical connector with an improved structure, characterized in that: It comprises an upper insulating body (11), a lower insulating body (12) and a terminal integrated part (13); The upper insulating body is provided with at least one set of upper terminal receiving mechanisms, the upper terminal receiving structure comprising an upper terminal receiving groove (111) with a closed upper end and an open lower end, and at least one upper terminal receiving hole (112) communicating with the upper terminal receiving groove and extending through the upper terminal receiving groove; The lower insulating body is provided with at least one set of lower terminal receiving mechanisms, the lower terminal receiving structure comprising a lower terminal receiving groove (121) with a closed lower end and an open upper end, and at least one lower terminal receiving hole (122) communicating with the lower terminal receiving groove and extending through the lower terminal receiving groove; The terminal integral part includes an integrally formed insulating part and at least one conductive terminal, wherein the at least one conductive terminal is fixedly arranged on the integrally formed insulating part at intervals, and the conductive terminal is provided with an upper elastic contact portion and a lower elastic contact portion capable of elastically telescopic movement in the vertical direction; The upper insulating body and the lower insulating body can be fixedly stacked from top to bottom to form an integral structure, the integrally formed insulating member of the terminal integral member can be fixedly accommodated in the cavity space formed by the upper terminal receiving groove and the lower terminal receiving groove, the upper elastic contact portion and the elastic contact portion of the conductive terminal are respectively accommodated in the upper terminal receiving hole and the lower terminal receiving hole, and the upper elastic contact portion and the elastic contact portion of the conductive terminal can respectively extend outside the upper insulating body and the lower insulating body through the upper terminal receiving hole and the lower terminal receiving hole; The one-piece molded insulating part is a columnar structure with a non-circular cross-section, and a plurality of conductive terminals are fixedly arranged on the one-piece molded insulating part in parallel and spaced apart. A protruding upper fixing rib and a lower fixing rib are provided on at least one side wall of the upper terminal receiving groove and the lower terminal receiving groove. A fixing groove corresponding to the upper fixing rib and the lower fixing rib is provided on the side wall of the one-piece molded insulating part. The upper fixing rib and the lower fixing rib can be inserted into the fixing groove in a one-to-one manner. A plurality of upper fixing ribs are respectively arranged on the side walls of the upper terminal receiving groove connected to the upper terminal receiving hole, and each upper fixing rib is alternately arranged with the upper terminal receiving hole. A plurality of lower fixing ribs are respectively arranged on the side walls of the lower terminal receiving groove connected to the lower terminal receiving hole, and each lower fixing rib is alternately arranged with the lower terminal receiving hole.

2. The structurally improved electrical connector according to claim 1, wherein: The conductive terminal and the integrally formed insulating member are formed into an integral structure by in-mold injection molding.

3. The structurally improved electrical connector according to claim 1, wherein: The upper insulating body is provided with at least two connection positioning holes (113) or at least two connection positioning columns, and the lower insulating body is provided with at least two connection positioning columns (123) or at least two connection positioning holes. The connection positioning columns on the upper insulating body and the lower insulating body can be fixedly plugged into the connection positioning holes in a one-to-one correspondence.

4. The structurally improved electrical connector according to claim 3, wherein: The connection positioning column and the connection positioning hole are fixed and positioned by interference fit, hot melt connection, snap connection or connection with a connector.

5. The structurally improved electrical connector according to claim 1, wherein: The conductive terminal comprises a base (1321), an upper elastic arm (1322) and a lower elastic arm (1323), wherein the base is fixedly arranged on an integrally formed insulating member, the upper elastic arm and the lower elastic arm are bent from the upper end and the lower end of the base to extend into the upper terminal receiving hole and the lower terminal receiving hole, respectively, the upper elastic contact portion and the lower elastic contact portion are respectively V-shaped bending structures formed by bending the upper elastic arm and the lower elastic arm, the V-shaped bending structure of the upper elastic contact portion is opened downward, and the V-shaped bending structure of the lower elastic contact portion is opened upward.

6. The structurally improved electrical connector according to claim 5, characterized in that: The free end of the upper elastic arm is bent downward to form a circumventing bent portion toward the base, and the free end of the lower elastic arm is bent upward to form a circumventing bent portion toward the base.

7. The structurally improved electrical connector according to claim 5, wherein: The width of the base is greater than the width of the upper elastic arm and the lower elastic arm. The base is tightly clamped between the two side walls of the upper terminal receiving groove and the lower terminal receiving groove along the terminal width direction. The gap between the upper elastic arm and the lower elastic arm and the inner side walls in the width direction of the upper terminal receiving groove and the lower terminal receiving groove gradually increases from the root to the free end.

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