Electric connector

Abstract

The utility model provides an electric connector, which comprises an insulating body and a power supply terminal fixed on the insulating body, and the insulating body is provided with a terminal groove penetrating through the insulating body along the vertical direction. Each power supply terminal is provided with a fixed sheet fixedly held in the corresponding terminal groove, a plurality of arm parts formed by bending downwards and reversely from the top end of the fixed sheet, and a plurality of weld legs extending downwards from the bottom end of the fixed sheet and extending out of the insulating body; each power supply terminal is further provided with a pair of material belt connecting parts which extend upwards from the top end of the fixing piece to be connected with a material belt, and the pair of material belt connecting parts are oppositely arranged on the two sides of the arm part in the transverse direction. The electric connector is stable in plugging, convenient to manufacture and high in structural strength.

Description

Technical Field

[0001] The utility model relates to an electric connector. Background Art

[0002] In conventional power connectors, the contact portion of the power terminal is arranged close to its plug interface, which results in a shallow plugging depth when electrically connected to the mating component, and plugging stability is difficult to ensure. In addition, if the contact portion is arranged at a deeper position, it is more difficult to assemble it to the insulating body, and the structural strength of the insulating body may be weakened due to the arrangement of the plug-in slot.

[0003] In view of this, it is necessary to improve the existing electrical connector to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an electrical connector which has stable plugging, is easy to manufacture and has high structural strength.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides an electrical connector, which includes an insulating body and a power terminal fixed to the insulating body, the insulating body has a terminal groove penetrating it in the up-down direction, each of the power terminals has a fixing plate held in the corresponding terminal groove, a plurality of arms formed by bending downward from the top of the fixing plate, and a plurality of welding legs extending downward from the bottom of the fixing plate out of the insulating body, each of the power terminals also has a pair of material strip connecting portions extending upward from the top of the fixing plate to be connected to the material strip, and the pair of material strip connecting portions are relatively arranged on both sides of the arm in the lateral direction.

[0006] As a further improvement of the present invention, the power terminal is assembled into the insulating body along a direction which is the same as a plugging direction of the docking connector.

[0007] As a further improvement of the utility model, each of the arms is provided with a contact portion for contacting the docking terminal, the arm portion includes a wrist portion connected to the fixing plate and a contact arm extending downward from the wrist portion, and the top end surface of each of the material strip connecting portions is higher than the top end of the wrist portion.

[0008] As a further improvement of the present invention, the insulating body includes a front wall and a rear wall that are opposite to and spaced apart in the front-to-back direction, at least one docking cavity formed between the front wall and the rear wall, and two groups of guide ribs located in each docking cavity, the two groups of guide ribs are oppositely arranged on both sides of the corresponding docking cavity along the transverse direction, each group of guide ribs includes two guide ribs that are oppositely arranged in the front-to-back direction, and the material strip connecting portion is inserted into the installation groove formed between the guide ribs and the corresponding front wall or rear wall.

[0009] As a further improvement of the present invention, the front and rear walls are provided with notches at positions corresponding to the material strip connecting portions.

[0010] As a further improvement of the present invention, the guide ribs extend upward beyond the top end of the arm portion, and each guide rib has a first and a second guide surface relatively arranged on its front and rear sides, and the first and the second guide surfaces are inclined and located at the top of the guide rib.

[0011] As a further improvement of the present invention, the first guide surface is located on a side of the guide rib close to the contact portion of the arm, the second guide surface is located on a side of the guide rib away from the contact portion, and the angle between the first guide surface and the horizontal plane is greater than the angle between the second guide surface and the horizontal plane.

[0012] As a further improvement of the utility model, the insulating body includes at least two docking cavities arranged side by side in the transverse direction, and two adjacent docking cavities are separated by a partition wall extending along the front-to-back direction, and the partition wall is connected to two adjacent groups of guide ribs to form an I shape.

[0013] As a further improvement of the utility model, each of the fixing plates includes a first and a second fixing plate connected in the up-down direction and a connecting portion connecting the first and the second fixing plates, the first and the second fixing plates are staggered in the front-to-back direction, and in the front-to-back direction, the distance between the first fixing plate and the contact portion of the arm portion is greater than the distance between the second fixing plate and the contact portion.

[0014] As a further improvement of the present invention, the width of the first fixing plate in the lateral direction is greater than the width of the second fixing plate in the lateral direction, so as to form a step surface at the bottom end of the first fixing plate, and the step surface abuts against the stop protrusion in the insulating body.

[0015] Beneficial effects of the utility model: the electrical connector of the utility model is configured to have a power terminal with a plurality of arms formed by reversely bending downward from the top of a fixing plate and a pair of material strip connecting portions extending upward from the top of the fixing plate to be connected to the material strip, and at the same time, the pair of material strip connecting portions are relatively arranged on both sides of the arm in the horizontal direction, so that the electrical connector is not only stable in insertion and easy to manufacture, but also can ensure the high structural strength of the insulating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional assembly diagram of the electric connector of the utility model.

[0017] Figure 2 yes Figure 1 Another view of the electrical connector shown.

[0018] Figure 3 yes Figure 1 A perspective exploded view of the electrical connector shown.

[0019] Figure 4 yes Figure 3 A three-dimensional view of the insulating body in the electrical connector shown.

[0020] Figure 5 yes Figure 3 A perspective view of the power terminals in the electrical connector shown.

[0021] Figure 6 yes Figure 1 A cross-sectional view of the electrical connector shown.

[0022] Figure 7 yes Figure 1 Another cross-sectional view of the electrical connector shown. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0024] Please refer to Figures 1 to 7 FIG. 2 is a preferred embodiment of an electrical connector 100 of the present invention. In this embodiment, the electrical connector 100 includes an insulating body 1 and a power terminal 2 fixed to the insulating body 1 .

[0025] For the sake of convenience, when introducing the electrical connector 100 below, the mating end of the electrical connector 100 will be regarded as the top end and the other end oppositely arranged will be regarded as the bottom end. That is, the up and down direction is the plugging direction of the electrical connector 100 and the mating connector (not shown). At the same time, a direction perpendicular to the up and down direction is defined as the lateral direction, and another direction perpendicular to the up and down direction is defined as the front-to-back direction. In this embodiment, the size of the insulating body 1 in the lateral direction is greater than its size in the front-to-back direction.

[0026] Please refer to Figures 1 to 4 and Figure 7As shown, the insulating body 1 has a terminal groove 101 penetrating the insulating body 1 in the up-down direction. Specifically, the insulating body 1 includes a front wall 11 and a rear wall 12 that are opposite and spaced apart in the front-to-back direction, at least one docking cavity 102 formed between the front wall 11 and the rear wall 12, and two groups of guide ribs 13 located in each docking cavity 102. The two groups of guide ribs 13 are oppositely arranged on both sides of the corresponding docking cavity 102 in the transverse direction. Each group of guide ribs 13 includes two guide ribs 13 that are oppositely arranged in the front-to-back direction. A mounting groove 14 is formed between each guide rib 13 and its adjacent front wall 11 or rear wall 12.

[0027] The insulating body 1 includes at least two docking cavities 102 arranged side by side in the transverse direction. Two adjacent docking cavities 102 are separated by a partition wall 103 extending in the front-to-back direction. The partition wall 103 is connected to two adjacent guide ribs 13 to form an I shape.

[0028] Furthermore, in the present invention, the insulating body 1 further comprises a bottom wall 15 connecting the bottoms of the front wall 11 and the rear wall 12, and the terminal slots 101 penetrate the bottom wall 15. The portion of each terminal slot 101 on the bottom wall 15 comprises a pair of clamping slots 1011 on both sides and an enlarged slot 1012 located in the middle of the pair of clamping slots.

[0029] In addition, the insulating body 1 also has a plurality of heat dissipation grooves 104 formed by penetrating the bottom wall 15 in the up-down direction. The heat dissipation grooves 104 are connected to the docking cavity 102 and are located between two rows of terminal grooves 101 in the front-to-back direction, that is, corresponding to the middle area of ​​the docking cavity 102. The contact portion 2231 of the power terminal 2 is also located near the middle of the docking cavity 102. In this way, the heat on the docking part of the power terminal 2 can be quickly dissipated. Each heat dissipation groove 104 is in the shape of a long strip extending in the horizontal direction.

[0030] Please refer to Figures 1 to 3 and Figures 5 to 7 As shown, in the embodiment of the present invention, the electrical connector 100 has two pairs of the power terminals 2, and two of each pair of power terminals 2 are arranged opposite to each other in the front-to-back direction; in other embodiments, the power terminals 2 may have only one pair arranged opposite to each other, or three pairs or more.

[0031] Each of the power terminals 2 has a fixing plate 21 fixed in the corresponding terminal slot 101, a plurality of arms 22 formed by bending downward from the top of the fixing plate 21, and a plurality of welding legs 23 extending downward from the bottom of the fixing plate 21 and extending out of the insulating body 1. The arms 22 are independently arranged except for being connected through the fixing plate 21. In this way, each arm 22 has high elasticity and a strong elastic contact force during docking. Each of the power terminals 2 also has a pair of material strip connecting portions 24 extending upward from the top of the fixing plate 21 to connect with the material strip. The pair of material strip connecting portions 24 are arranged oppositely on both sides of the arm 22 in the lateral direction.

[0032] In the present invention, the power terminal 2 is assembled into the insulating body 1 along the same direction as the plugging direction of the docking connector. Specifically, Figure 1 As shown, the docking connector (not shown) is plugged into the electrical connector 100 from top to bottom, and the power terminal 2 is assembled into the insulating body 1 from top to bottom, that is, the assembly direction of the power terminal 2 is the same as the plugging direction of the docking connector.

[0033] Each of the arm portions 22 is provided with a contact portion 2231 for contacting a mating terminal (not shown). The arm portion 22 includes a wrist portion 221 connected to the fixing plate 21 and a contact arm 223 extending downward from the wrist portion 221. Figure 7 As shown, the top end surface of each of the material strip connecting portions 24 is higher than the top end of the wrist portion 221 , and each of the material strip connecting portions 24 has a sharpened portion 241 at its top end, and the top end surface of the sharpened portion 24 is used to connect with the material strip.

[0034] The material strip connection portion 24 is inserted into the installation groove 14 formed between the guide rib 13 and the corresponding front wall 11 or rear wall 12, and the top end surface of the material strip connection portion 24 is located at the lower side of the top end of the guide rib 13, so that the top end surface of the material strip connection portion 24 is retracted and confined inside the installation groove 14.

[0035] Furthermore, the guide rib 13 extends upward beyond the top end of the arm 22 to provide a guiding function before the docking terminal touches the power terminal 2. Each guide rib 13 has a first and a second guide surface 131 and 132 arranged relatively on its front and rear sides. The first and the second guide surfaces 131 and 132 are inclined and located at the top of the guide rib 13.

[0036] The first guide surface 131 is located on the side of the guide rib 13 close to the contact portion 2231 of the arm portion 22, and the second guide surface 132 is located on the side of the guide rib 13 away from the contact portion 2231, and the angle between the first guide surface 131 and the horizontal plane is greater than the angle between the second guide surface 132 and the horizontal plane, that is, the slope of the first guide surface 131 is smaller than the slope of the second guide surface 132. In this way, the two first guide surfaces 131 of the pair of guide ribs 13 arranged opposite to each other are open upward and present a larger upper opening size, thereby providing a better guiding effect for the plugging of the docking connector.

[0037] The front and rear walls 11 and 12 are provided with recesses 105 at positions corresponding to the material strip connection portion 24 , so as to provide a certain amount of clearance space for breaking off the material strip when the material strip is broken off after the power terminal 2 is installed in the insulating body 1 .

[0038] Each of the fixing plates 21 includes a first fixing plate 211 and a second fixing plate 212 connected in the up-down direction and a connecting portion 213 connecting the first fixing plates 211 and 212. The first fixing plates 211 and the second fixing plates 212 are staggered in the front-to-back direction, and in the front-to-back direction, the distance between the first fixing plate 211 and the contact portion 2231 of the arm portion 22 is greater than the distance between the second fixing plate 212 and the contact portion 2231. By setting the bent connecting portion 213, the distance between the two relatively arranged first fixing plates 211 is increased while satisfying the spacing of the welding feet 23, thereby setting a contact portion 2231 with a deeper insertion position.

[0039] The width of the first fixing piece 211 in the transverse direction is greater than the width of the second fixing piece 212 in the transverse direction, so as to form a step surface 2112 at the bottom end of the first fixing piece 211, and the step surface 2112 abuts against the stop protrusion 106 in the insulating body 1. The two side portions of the second fixing piece 212 are accommodated and fixed in 1011, and the middle portion is exposed in the enlarged groove 1012, and the heat around the power terminal 2 can also be dissipated outward through the enlarged groove 1012.

[0040] In this embodiment, when manufacturing the electrical connector 100, first, a row of power terminals 2 connected to the material strip is inserted from top to bottom into the insulating body 1, and then another row of power terminals 2 connected to the material strip is inserted from top to bottom into the insulating body 1, and then the material strips connected to the two rows of power terminals 2 are broken off.

[0041] The electrical connector 100 of the present invention is configured such that the power terminal 2 has a plurality of arms 22 formed by reversely bending downward from the top of the fixing plate 21 and a pair of material strip connecting portions 24 extending upward from the top of the fixing plate 21 to be connected to the material strip, and the pair of material strip connecting portions 24 are relatively arranged on both sides of the arm 22 in the lateral direction, thereby making the electrical connector 100 not only stable in insertion but also easy to manufacture and ensuring the high structural strength of the insulating body 1.

[0042] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0043] The above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person skilled in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. An electrical connector, comprising an insulating body and a power terminal fixed to the insulating body, the insulating body having a terminal slot extending therethrough in an up-down direction, each of the power terminals having a fixing piece fixed in the corresponding terminal slot, a plurality of arm portions formed by bending downward from the top of the fixing piece, and a plurality of welding legs extending downward from the bottom of the fixing piece out of the insulating body, characterized in that: Each of the power terminals also has a pair of material strip connecting portions extending upward from the top end of the fixing plate to be connected to the material strip, and the pair of material strip connecting portions are arranged oppositely at two sides of the arm portion in the transverse direction.

2. The electrical connector according to claim 1, wherein: The power terminal is assembled into the insulating body along the same direction as the plugging direction of the docking connector.

3. The electrical connector according to claim 1, wherein: Each of the arms is provided with a contact portion for contacting the docking terminal, and the arm comprises a wrist connected to the fixing plate and a contact arm extending downward from the wrist, and the top surface of each of the strip connecting portions is higher than the top of the wrist.

4. The electrical connector according to claim 1, wherein: The insulating body includes a front wall and a rear wall that are opposite to and spaced apart in the front-to-back direction, at least one docking cavity formed between the front wall and the rear wall, and two groups of guide ribs located in each docking cavity, wherein the two groups of guide ribs are oppositely arranged on both sides of the corresponding docking cavity along the transverse direction, each group of guide ribs includes two guide ribs that are oppositely arranged in the front-to-back direction, and the material strip connecting portion is inserted into a mounting groove formed between the guide ribs and the corresponding front wall or rear wall.

5. The electrical connector according to claim 4, wherein: The front and rear walls are provided with notches at positions corresponding to the material strip connecting portions.

6. The electrical connector according to claim 4, wherein: The guide ribs extend upward beyond the top of the arm portion. Each guide rib has a first guide surface and a second guide surface which are arranged oppositely at the front and rear sides thereof. The first guide surface and the second guide surface are arranged obliquely and are located at the top of the guide rib.

7. The electrical connector according to claim 6, wherein: The first guide surface is located on a side of the guide rib close to the contact portion of the arm, the second guide surface is located on a side of the guide rib away from the contact portion, and an angle between the first guide surface and a horizontal plane is greater than an angle between the second guide surface and the horizontal plane.

8. The electrical connector according to claim 4, wherein: The insulating body comprises at least two docking cavities arranged side by side in the transverse direction, and two adjacent docking cavities are separated by a partition wall extending in the front-to-back direction, and the partition wall is connected to two adjacent groups of guide ribs to form an I shape.

9. The electrical connector according to claim 1, wherein: Each of the fixing plates includes a first fixing plate and a second fixing plate connected in the up-down direction and a connecting portion connecting the first fixing plate and the second fixing plate. The first fixing plate and the second fixing plate are staggered in the front-to-back direction, and in the front-to-back direction, the distance from the first fixing plate to the contact portion of the arm portion is greater than the distance from the second fixing plate to the contact portion.

10. The electrical connector according to claim 9, wherein: The width of the first fixing piece in the transverse direction is greater than the width of the second fixing piece in the transverse direction, so as to form a step surface at the bottom end of the first fixing piece, and the step surface abuts against the stop protrusion in the insulating body.

Images