Electric connector

Abstract

An electric connector comprises an insulator and terminals arranged on the insulator, and each terminal comprises a plurality of terminal units arranged side by side in the transverse direction and bridging parts connected with the adjacent terminal units. Each terminal unit comprises a cross beam, a plurality of upper elastic arms extending upwards from the cross beam and material strap connecting parts located at the two transverse ends of the cross beam, each upper elastic arm comprises an upper inclined part and an upper contact part, and the bridging part is connected with the material strap connecting parts of the adjacent terminal units and forms a clamping port with the two adjacent material strap connecting parts. The insulator is provided with a holding part, and the clamping port is clamped on the holding part to form reliable connection, so that the number of upper contact parts of the electric connector can be increased, the transmission efficiency can be improved, and the miniaturization of the product can be realized.

Description

[Technical field]

[0001] The utility model discloses an electric connector. [Background technology]

[0002] The prior art related to the present invention can be found in CN109786996B. The electrical connector transmits power or data signals through different electrical paths. The terminal base is attached to the surface of the insulating substrate, and an elastic beam is provided above the base, thereby increasing the distance between the terminals, which is not conducive to product miniaturization.

[0003] Therefore, it is necessary to provide a new electrical connector to solve the above problems. [Contents of the utility model]

[0004] The utility model aims to provide an electrical connector having an improved terminal structure.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: an electrical connector, comprising an insulator and a terminal arranged on the insulator, each of the terminals comprising a plurality of terminal units arranged side by side in a transverse direction and a bridging portion connecting adjacent terminal units, each of the terminal units comprising a crossbeam, a plurality of upper elastic arms extending upward from the crossbeam and a strip connecting portion located at both transverse ends of the crossbeam, each upper elastic arm being provided with a contact portion, the bridging portion connecting the strip connecting portions of adjacent terminal units and forming a card interface with two adjacent strip connecting portions, the insulator being provided with a retaining portion, and the card interface being retained by the retaining portion.

[0006] In order to solve the above-mentioned technical problems, the utility model can also adopt the following technical solutions: an electrical connector, comprising an insulator and a terminal fixed on the insulator, the terminal comprising a vertical portion extending vertically, an upper inclined portion extending upwardly from the vertical portion, and a plurality of upper contact portions that continue to extend upward and protrude upward from the upper inclined portion, the terminal also comprises a lower inclined portion extending downwardly from the main body portion, a plurality of lower contact portions that continue to extend downward and protrude downward from the lower inclined portion, and two material strip connecting portions that are respectively connected to the two side edges of the vertical portion and extend vertically, and the terminal is fixed by the side edges of the material strip connecting portion being abutted against the inner wall of the insulator.

[0007] Compared with the prior art, the utility model has the following beneficial effects: by increasing the number of upper contact parts of the terminal unit and connecting multiple terminal units in series in a row, the impedance of transmitting large current can be reduced, and the terminal is clamped on the retaining part from the bottom of the insulator upward by the card interface to form a reliable connection, which is conducive to product miniaturization.

Brief Description of the Drawings

[0008] Figure 1It is a three-dimensional diagram of the electrical connector according to the first embodiment of the utility model.

[0009] Figure 2 yes Figure 1 Partial perspective view of the CEC connector.

[0010] Figure 3 yes Figure 2 Exploded view of the CEC connector.

[0011] Figure 4 yes Figure 2 Cross-sectional view of the CEC connector

[0012] Figure 5 yes Figure 2 Front view of a terminal unit corresponding to the middle terminal.

[0013] Figure 6 It is an exploded view of the electrical connector of the second embodiment of the present utility model.

[0014] Figure 7 It is a three-dimensional diagram of an electrical connector according to a third embodiment of the present invention.

[0015] Figure 8 yes Figure 7 Exploded view of a China Electric connector.

[0016] Fig. 9 yes Figure 7 A cross-sectional view of a mid-range connector.

[0017] Fig.10 yes Figure 8 Front view corresponding to the middle terminal.

[0018]

Component Symbol Description

[0019] Electrical connector 100，100’，100” Upper inclined part 2111，2111” Insulator 10，10’，10” Upper contact 2112，2112” Holding part 101 upper vertical part 212，212” Slotting 102，102” Upper notch 2121” Narrow part 103，103” Lower vertical part 213，213” terminal 20，20’ Lower notch 2131” Bridge 201 Lower elastic arm 214，214” Card interface 202 Lower slope 2141，2141” Strip connection 203，203” Lower contact 2142，2142” Guide surface 2031 beam 215，215” Terminal unit 21，21” Spacer ribs 216 Upper elastic arm 211，211” Conductive sheet 30

[0020] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. [Specific implementation method]

[0021] Please refer to Figure 1 As shown, the utility model discloses an electrical connector 100 for power signal transmission. The electrical connector 100 includes an insulator 10 and a terminal 20 arranged on the insulator 10. In order to reduce the impedance of transmitting large current and realize product miniaturization without increasing the overall size of the electrical connection 100, the terminal 20 in the utility model is composed of a plurality of terminal units 21 connected in series, and each terminal unit 21 is provided with a plurality of contact portions.

[0022] Please refer to Figure 2-5As shown, only one terminal 20 and the corresponding insulator 10 are shown, and each terminal 20 includes a plurality of terminal units 21 arranged side by side in the transverse direction and a connection between adjacent terminal units 21 (see Figure 4 ) of the bridging portion 201, each terminal unit 21 includes a cross beam 215, a plurality of upper elastic arms 211 extending upward from the cross beam 215, and a material strip connecting portion 203 located at both lateral ends of the cross beam 214, each upper elastic arm 211 includes an upper inclined portion 2111 and an upper contact portion 2112, the bridging portion 201 connects the material strip connecting portions 203 of adjacent terminal units 21, and forms a card interface 202 with two adjacent material strip connecting portions 203, the insulator 10 is provided with a retaining portion 101, and the card interface 202 is retained in the retaining portion 101, specifically, a slot 102 is provided at the bottom of the insulator 10, the retaining portion 101 is located in the slot 102, the card interface 202 between adjacent terminal units 21 is opened upward, and can interfere with the outer periphery of the retaining portion 101, so that the terminal 20 is stably retained in the insulator 10.

[0023] Please refer to Figure 2-4 As shown, the terminal 20 is formed by stamping a metal sheet in one piece, and includes six terminal units 21, and each terminal unit 21 is provided with at least three upper elastic arms 211. Further, each terminal unit 21 also includes the same number of lower elastic arms 214, and each lower elastic arm 214 is provided with a lower inclined portion 2141 and a lower contact portion 2142. Specifically, a plurality of pairs of upper and lower vertical portions 212 and 213 extend from the cross beam 215 to both sides, and upper and lower elastic arms 211 and 214 extend from the upper and lower vertical portions 212 and 213, respectively, so that the lower elastic arm 214 is mirror-symmetrical with the upper elastic arm 211. Preferably, each terminal unit 21 includes a spacing rib 216 extending downward from the cross beam 215 and arranged between two adjacent lower elastic arms 214 to increase the electrical load of the terminal 20. The cross beam 215 , the strip connection portion 203 , the bridge portion 201 and the spacing ribs 216 are located in the same vertical plane, and the bridge portion 201 is closer to the bottom than the cross beam 215 , so that the terminal units 21 remain flat after being connected in series, which is convenient for fixing.

[0024] Please refer to Figure 6 As shown, the electrical connector 100' in the second embodiment is basically similar to the electrical connector 100, except that the terminal 20' includes three terminal units 21', and the insulator 10' accommodating a corresponding terminal 20' is also shorter than the insulator 10, so that the connector 100' corresponds to conductive sheets 30 of different sizes.

[0025] Please refer to Figure 7-10As shown, the electrical connector 100" includes an insulator 10" and a terminal unit 21" fixed to the insulator 10", wherein the terminal unit 21" includes a crossbeam 215", upper and lower vertical portions 212", 213", a strip connecting portion 203", and upper and lower elastic arms 211", 214" extending from the upper and lower vertical portions 212", 213" respectively; further, the upper and lower elastic arms 211", 214" include upper and lower inclined portions 2111", 2141" and upper and lower contact portions 2112", 2142"; the basic structure of the terminal unit 21" is similar to that of the terminal unit 21, except that the upper and lower inclined portions 2111", 2141" are a whole and do not correspond one to one to the upper and lower contact portions 2112", 2142", that is, multiple upper vertical portions 212" are connected to the same upper inclined portion 2111", and the upper inclined portions 2111", 2141 ... The portion 2111" extends upward to form a plurality of upper contact portions 2112" arranged in parallel, and a plurality of lower vertical portions 213" are connected to the same lower inclined portion 2141", and the lower inclined portion 2141" extends downward to form a plurality of lower contact portions arranged in parallel, so that when electrically connected with a smaller conductive sheet 30, the impedance during power transmission can be reduced by increasing the number of parallel contact portions; preferably, the strip connection portion 203" is located at both lateral ends of the beam 215" and extends vertically, so that the terminal unit 21" is fixed by the side edge of the strip connection portion 203" against the inner wall of the insulator 10"; it can be understood that the strip connection portion 203" between adjacent terminal units 21" can be further connected in series to form a terminal similar to the terminal 20, so as to adjust the impedance and enhance the ability of the electrical connector 100" to transmit large current signals, while making the volume of the electrical connector 100 controllable.

[0026] Please refer to Figure 8-10 As shown, the number of the upper and lower contact portions 2112", 2142" is not less than 4, and in this embodiment, there are 6. The upper and lower inclined portions 2111", 2141" and the upper and lower vertical portions 212", 213" of the terminal unit 21" are larger than those of other embodiments. When the terminal unit 21" is electrically conductive, a plurality of terminal units 21" are subjected to force at the same time, and a single terminal unit 21" is prone to damage due to excessive pressure, or failure to bend in place due to insufficient pressure, which affects the transmission effect. Therefore, an upper notch 2121" is provided between adjacent upper vertical portions 2111", and a lower notch 2131" is provided between adjacent lower vertical portions 213" to improve the deformation ability of the terminal unit 21". Preferably, the terminal unit 21" has three groups of upper and lower notches 2121", 2131", and the upper and lower notches 2121", 2131" are mirror-symmetrical about the cross beam 215", so that the terminal unit 21" is subjected to uniform force as a whole and its elastic performance is improved.

[0027] Combination Figure 8-9As shown, the inner wall of the insulator 10" is provided with a groove 102" from the bottom upward. Furthermore, the width of the groove 102" increases near the bottom of the insulator 10", so that the inner wall of the insulator 10" is recessed to form a narrow portion 103". In this embodiment, the groove 102" and the bottom of the insulator 10" and the narrow portion 103" are transitioned by chamfers; during installation, the terminal unit 21" enters from the bottom of the insulator 10", and the guide surface 2031" on the upper end surface of the strip connecting portion 203" is used to make the strip connecting portion 203" hard interfere with the groove 102".

[0028] The above description is only part of the implementation methods of the utility model, not all of the implementation methods. Any equivalent changes made to the technical solution of the utility model by ordinary technicians in this field after reading the specification of the utility model are covered by the claims of the utility model.

Claims

1. An electrical connector, comprising an insulator and a terminal disposed on the insulator, each of the terminals comprising a plurality of terminal units disposed side by side in a transverse direction and a bridge portion connecting adjacent terminal units, characterized in that: Each of the terminal units includes a cross beam, a plurality of upper elastic arms extending upward from the cross beam, and a material strip connection portion located at both lateral ends of the cross beam, each of the upper elastic arms includes an upper inclined portion and an upper contact portion, the bridging portion connects the material strip connection portions of two adjacent terminal units and forms a card interface with two adjacent material strip connection portions, the insulator is provided with a retaining portion, and the card interface is retained by the retaining portion.

2. The electrical connector according to claim 1, wherein: The number of the terminal units of each terminal is at least three, and each terminal unit is provided with at least three upper elastic arms.

3. The electrical connector according to claim 2, wherein: The terminal is integrally formed by stamping a metal sheet.

4. The electrical connector according to claim 2, wherein: Each of the terminal units includes a lower elastic arm, each of the lower elastic arms is provided with a lower inclined portion and a lower contact portion, and multiple pairs of upper and lower vertical portions extend from the crossbeam to both sides, and the upper and lower elastic arms extend from the upper and lower vertical portions respectively, so that the lower elastic arm is mirror-symmetrical to the upper elastic arm.

5. The electrical connector according to claim 4, wherein: The opening of the card interface faces upward, the material strip connecting portion is provided with a guide surface, the guide surface is located at the upper end of the material strip connecting portion, and the terminal is installed on the holding portion from bottom to top.

6. The electrical connector according to claim 4, wherein: Each of the terminal units includes a spacing rib extending downward from the cross beam and arranged between two adjacent lower elastic arms.

7. The electrical connector according to claim 6, wherein: The cross beam, the material strip connecting portion, the bridging portion and the spacer ribs are located in the same vertical plane, and the bridging portion is closer to the bottom than the cross beam.

8. An electrical connector, comprising an insulator and a terminal unit fixed to the insulator, the terminal unit comprising a crossbeam, upper and lower vertical portions extending vertically from both sides of the crossbeam, an upper elastic arm disposed on the upper vertical portion, the upper elastic arm comprising an upper inclined portion and a plurality of upper contact portions extending upward from the upper inclined portion and protruding upward, characterized in that: The terminal unit also includes a lower elastic arm arranged on the lower vertical portion, the lower elastic arm includes a lower inclined portion extending downward from the lower vertical portion, a plurality of lower contact portions continuing to extend downward from the lower inclined portion and protruding downward, and a strip connecting portion located at both lateral ends of the beam, the strip connecting portion extends vertically, and the terminal unit is fixed by the side edge of the strip connecting portion abutting against the inner wall of the insulator.

9. The electrical connector according to claim 8, wherein: The upper and lower vertical parts are provided with upper and lower notches which are mirror-symmetrical with respect to the cross beam.

10. The electrical connector according to claim 9, wherein: The number of the upper contact parts and the number of the lower contact parts are both no less than 4.

Images