Electric connector

Abstract

An electric connector comprises an insulation body and at least one row of terminals, the row of terminals are arranged along a first direction, each terminal extends forwards along a second direction perpendicular to the first direction, and the insulation body is provided with a first surface, a second surface, an accommodating groove penetrating through the first surface and the second surface and a fixing groove communicated with the corresponding accommodating groove, each terminal comprises a base part fixed in the fixing groove, a first elastic arm which extends from the base part, penetrates through the accommodating groove and protrudes out of the first surface, and a second elastic arm which extends from the base part, penetrates through the accommodating groove and protrudes out of the second surface; the row of terminals comprises first terminals and second terminals which are alternately arranged, the base parts of the first terminals are inserted into the corresponding fixing grooves from the first surface, and the base parts of the second terminals are inserted into the corresponding fixing grooves from the second surface. According to the utility model, the two terminals of the electric connector can be respectively installed from two different surfaces of the insulating body, and the terminals are convenient and fast to install.

Description

Technical Field

[0001] The utility model relates to an electrical connector.

Background Art

[0002] For related prior art, please refer to the Chinese patent with the patent number CN117293604A. This patent discloses an electrical connector, which includes a plurality of terminals arranged in a matrix, and each row of terminals includes signal terminal pairs and ground terminals located on both sides of the signal terminal pairs. When installing the terminals of this electrical connector, all the terminals are installed into the terminal slots from top to bottom, resulting in low die ejector efficiency of the plastic mold and easy wear.

[0003] Therefore, it is necessary to provide an improved electrical connector to overcome the above defects.

Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an electrical connector with convenient terminal installation.

[0005] To solve the above technical problem, the utility model can adopt the following technical solutions: An electrical connector includes an insulating body and at least one row of terminals. A row of the terminals is arranged along a first direction, and each of the terminals extends forward along a second direction perpendicular to the first direction. The insulating body is provided with opposite first and second surfaces, a receiving groove penetrating the first and second surfaces, and a fixing groove communicating with the corresponding receiving groove. Each of the terminals includes a base fixed in the fixing groove, a first elastic arm extending from the base and passing through the receiving groove to protrude from the first surface, and a second elastic arm extending from the base and passing through the receiving groove to protrude from the second surface; A row of the terminals includes first terminals and second terminals arranged alternately with each other. The base of the first terminal is inserted into the corresponding fixing groove from the first surface, and the base of the second terminal is inserted into the corresponding fixing groove from the second surface.

[0006] Preferably, the terminal is provided with a pair of tape connection ribs and a pair of guiding ribs extending from its base. The length of the tape connection rib is greater than that of the guiding rib. The tape connection ribs of the first terminal extend from its base to the first surface and are located on both sides of the first elastic arm. The guiding ribs of the first terminal extend from its base to the second surface and are located on both sides of the second elastic arm; The tape connection ribs of the second terminal extend from its base to the second surface and are located on both sides of the second elastic arm. The guiding ribs of the second terminal extend from its base to the first surface and are located on both sides of the first elastic arm.

[0007] Preferably, barbs are provided on the outer edges of the base and the tape connection ribs.

[0008] Preferably, the fixing grooves include a first fixing groove for receiving the base of the first terminal and a second fixing groove for receiving the base of the second terminal. The first and second fixing grooves are elongated structures extending in a first direction. Along the first direction, a plurality of the first fixing grooves are arranged in a row, and a plurality of the second fixing grooves are arranged in a row and are offset from the first fixing grooves in a second direction. When viewed in the second direction, adjacent first and second fixing grooves have overlapping portions.

[0009] Preferably, the first and second elastic arms are each provided with an arc-shaped contact portion, and the vertical distance in the second direction between two adjacent first and second fixing grooves in the same row is less than 0.16 mm.

[0010] Preferably, the first terminal is a ground terminal, and a plurality of the first terminals are arranged in alignment in the second direction; the second terminal is a signal terminal, and a plurality of the second terminals are arranged in alignment in the second direction, thereby forming a matrix arrangement of multiple rows and multiple columns.

[0011] Preferably, the signal terminal is offset forward in the second direction relative to the ground terminals on both sides, and the base of the signal terminal is located between the elastic arms of the ground terminals on adjacent both sides.

[0012] Preferably, in the second direction, the elastic arm of the signal terminal is located behind the body portion of the ground terminal in the adjacent front row.

[0013] Preferably, the adjacent first and second terminals in the same row are offset in the second direction, and the distance between the two adjacent terminals in the first direction and the distance in the second direction are both less than 0.8 mm.

[0014] To solve the above technical problems, the present utility model can also adopt the following technical solution: An electrical connector includes an insulating body and a plurality of terminals arranged in a matrix. The terminals include at least one row of ground terminals and at least one row of signal terminals. The signal terminals and the ground terminals in rows are alternately arranged side by side in a first direction. The insulating body is provided with a first surface, a second surface, and a terminal groove penetrating the first and second surfaces. Each terminal includes a base fixed in the terminal groove, a first elastic arm extending forward from the base to the first surface, and a second elastic arm extending forward from the base to the second surface. The terminal is provided with a guiding rib extending from the base to facilitate the installation of the terminal. The guiding rib of the signal terminal extends from the base to the first surface and is located on both sides of the first elastic arm. The guiding rib of the ground terminal extends from the base to the second surface and is located on both sides of the second elastic arm, so that the signal terminal and the ground terminal can be installed on the insulating body from two different surfaces of the insulator.

[0015] Preferably, the signal terminal and the ground terminal are arranged in a staggered manner along the second direction in which the elastic arm extends. When viewed from the second direction, the bases of adjacent signal terminals and the bases of adjacent ground terminals partially overlap along the first direction.

[0016] Compared with the prior art, the two types of terminals of the connector of the present invention can be respectively installed from two different surfaces of the insulating body, and the terminal installation is convenient and fast.

Description of the Drawings

[0017] Figure 1 is a perspective view of the electrical connector of the present invention, in which two terminals are disassembled.

[0018] Figure 2 is Figure 1 another perspective view of the electrical connector shown.

[0019] Figure 3 is Figure 1 a perspective view of the first terminal and the second terminal of the electrical connector in

[0020] Figure 4 is Figure 1 a partial cross-sectional view of the connector shown along line A-A.

[0021] Figure 5 is Figure 1 a partial cross-sectional view of the connector shown along line B-B.

[0022] Figure 6 is Figure 1 a bottom view of the electrical connector shown.

[0023] Figure 7 is Figure 6 a partial enlarged view of

[0024] Figure 8 is Figure 1 a partial cross-sectional view of the electrical connector shown along line C-C.

[0025] Figure 9 is Figure 3 a side view of the second terminal shown.

[0026] Figure 10 Figure 3 another perspective view of the second terminal in

[0027]

Element Symbol Description

[0028] Electrical connector 100 First terminal 21

[0029] Insulating body 10 Upper vertical part 210

[0030] First surface 101, first upper inclined portion 211

[0031] Second surface 102, second upper inclined portion 212

[0032] Terminal groove 103, first lower inclined portion 213

[0033] Receiving groove 104, second lower inclined portion 214

[0034] Fixing groove 105, upper contact end 215

[0035] First fixing groove 105, second terminal 22

[0036] Second fixing groove 1052, lower vertical portion 220

[0037] Terminal 20, third lower inclined portion 221

[0038] Base portion 200, fourth lower inclined portion 222

[0039] First elastic arm 201, third upper inclined portion 223

[0040] Second elastic arm 202, fourth upper inclined portion 224

[0041] Guide ribs 203, 204, lower contact end 225

[0042] Tape connecting ribs 205, 206

[0043] The following specific embodiments will further illustrate the present utility model in conjunction with the above-mentioned drawings.

Specific Embodiments

[0044] Refer to Figure 1-3 As shown, it is an electrical connector 100 of the present utility model, which is used to electrically connect a pair of mating components (such as a chip module) to a circuit board or connect two circuit boards. The electrical connector 100 includes an insulating body 10 and a plurality of terminals 20. The insulating body 10 is provided with opposite first surface 101, second surface 102 and a terminal groove 103 penetrating the first and second surfaces 101, 102. Each terminal 20 includes a base portion 200 fixed in the terminal groove 103, a first elastic arm 201 extending forward from the base portion 200 out of the first surface 101 and a second elastic arm 202 extending forward from the base portion 200 out of the second surface 102. Combining Figure 6 , the terminal groove 103 includes a receiving groove 104 and a fixing groove 105 communicating with the receiving groove 104. The base portion 200 is held in the fixing groove 105, and the first and second elastic arms 201, 202 respectively extend through the receiving groove 104 from the base portion 200 and protrude out of the corresponding first surface 101 and second surface 102. The electrical connector 100 includes at least one row along the first direction ( Figure 1A plurality of terminals 20 arranged in the front-rear direction (in the left-right direction in the figure), the elastic arms of the terminals 20 extend forward in a second direction perpendicular to the first direction ( Figure 1 in the left-right direction in the figure). A row of terminals arranged in the first direction includes first terminals 21 and second terminals 22 that are alternately arranged with each other. In this embodiment, the first and second terminals have the same structure. The second terminal is inserted into the insulating body after being inverted in the up-down direction of the first terminal, that is, the base 200 of the first terminal 21 is inserted into the corresponding fixing groove 105 from the first surface 101, and the base 200 of the second terminal 22 is inserted into the corresponding fixing groove 105 from the second surface 102. In the present utility model, there are multiple rows of terminals 20 arranged in the first direction of the electrical connector 100, and the multiple rows of terminals are arranged side by side in the second direction to form a matrix arrangement. Therefore, a plurality of first terminals 21 are also arranged in a row in the second direction, a plurality of second terminals 22 are also arranged in a row in the second direction, and the row of first terminals along the second direction and the row of second terminals along the second direction are alternately arranged side by side in the first direction.

[0045] Combined Figure 3-5, for the convenience of the first terminal 21 and the second terminal 22 being respectively installed into the corresponding terminal slots 103 from the first surface 101 and the second surface 102, the terminal 20 is provided with guiding ribs extending from the base 200. Among them, the guiding rib 203 of the first terminal 21 extends from the base 200 towards the second surface 102 and is located on both sides of the second elastic arm 202; the guiding rib 204 of the second terminal 22 extends from the base 200 towards the first surface 101 and is located on both sides of the first elastic arm 201. The terminal 20 further includes a tape connecting rib extending from the base 200. The tape connecting rib extends along the base 200 in a direction away from the guiding rib 203. The tape connecting rib 205 of the first terminal 21 extends from the base 200 towards the first surface 101 and is located on both sides of the first elastic arm 201. The tape connecting rib 206 of the second terminal 22 extends from the base 200 towards the second surface 102 and is located on both sides of the second elastic arm 202. When installing the terminal 20, a plurality of first terminals 21 arranged in the first direction are connected to the same tape (not shown in the figure) through the tape connecting rib 205, and then a jig is used to clamp the tape to install the plurality of first terminals 21 arranged in the first direction into the terminal slot 103 from the first surface 101. A plurality of second terminals 22 arranged in the first direction are connected to another same tape through the tape connecting rib 206, and then a jig is used to clamp the tape to install the plurality of second terminals 22 arranged in the first direction into the terminal slot 103 from the second surface 102. For the convenience of connecting the terminal 20 and the tape, the lengths of the tape connecting ribs 205 and 206 are relatively long, and their lengths are greater than the length of the guiding rib 203. In addition, for the convenience of installing and fixing the terminal 20 in the terminal slot 103, the guiding rib 203 is provided with a guiding surface to facilitate the installation of the terminal 20 into the terminal slot 103. In addition, barbs are provided on the outer edges of the base 200 and the tape connecting ribs 205 and 206 so that the terminal 20 is stably held in the terminal slot 103.

[0046] Continue to refer to Figure 1 and Figure 6 , in this embodiment, the fixing slot 105 is a long-shaped structure arranged in the first direction, and the fixing slots 105 (hereinafter referred to as the first fixing slots 1051) for accommodating the base 200 of the first terminal 21 arranged in the first direction are arranged in a row, and the fixing slots 105 (hereinafter referred to as the second fixing slots 1052) for accommodating the base 200 of the second terminal 22 are also arranged in a row. In order to arrange the terminals more compactly in a limited space, among a row of terminals 20 arranged in the first direction, the second terminal 22 is arranged with a front-back offset in the second direction relative to the first terminal 21 on its adjacent side. In this way, two adjacent rows of first fixing slots 1051 and second fixing slots 1052 that are arranged in a row in the first direction are offset in the second direction, combined with Figure 7, the vertical distance d1 in the second direction between the adjacent first and second fixing grooves 1051 and 1052 is less than 0.16 mm, preferably, d1 is 0.13 mm. Further, when viewed in the second direction, the first fixing groove 1051 has an overlapping portion with the second fixing grooves 1052 adjacent to its left and right sides. In this embodiment, preferably, the first terminal 21 is a ground terminal, the second terminal 22 is a signal terminal, and the second terminal 22 is forwardly offset relative to the first terminals 21 on both sides. Thus, the base of the second terminal 22 is located between the elastic arms of the first terminals 21 on adjacent sides, but the foremost end of the second terminal 22 is always located behind the terminals 20 in its previous row, that is, there is no overlap between the second terminal 22 and the terminals 20 in the previous row in the second direction, and the elastic arms of the second terminal 22 extend forward but are always located behind the base 200 of the first terminals 21 in the previous row, which can avoid signal interference between the front and rear rows of terminals. Of course, it can be understood that in other embodiments, the first terminal 21 can also be set as a signal terminal and the second terminal 22 can be set as a ground terminal. Continue to refer to Figure 7 , in order to make the layout of the terminals 20 more compact, in this embodiment, preferably, for the first and second terminals 21 and 22 in the same row in the first direction, the distance d2 in the first direction between two adjacent first terminals 21 and second terminals 22 is less than 0.8 mm, and the distance d3 in the second direction between two adjacent first terminals 21 and second terminals 22 is less than 0.8 mm.

[0047] Refer to Figure 3 and Figure 9-10, the first elastic arm 201 of the terminal 20 sequentially includes an upper vertical portion 210 extending upward from the base portion 200, a first upper inclined portion 211, a second upper inclined portion 212, a first lower inclined portion 213, a second lower inclined portion 214, and an upper contact end 215. An arc-shaped upper contact portion is formed between the second upper inclined portion 212 and the first lower inclined portion 213. The first lower inclined portion 213 inclines downward and outward, the second lower inclined portion 214 inclines downward and inward, and the upper contact end 215 bends inward from the end of the second lower inclined portion 214. The second elastic arm 202 of the terminal 20 sequentially includes a lower vertical portion 220 extending downward from the base portion 200, a third lower inclined portion 221, a fourth lower inclined portion 222, a third upper inclined portion 223, a fourth upper inclined portion 224, and a lower contact end 225. An arc-shaped lower contact portion is formed between the fourth lower inclined portion 222 and the third upper inclined portion 223, and the lower contact end 225 bends inward from the end of the fourth upper inclined portion 224. Preferably, in this embodiment, the first elastic arm 201 and the second elastic arm 202 are symmetrically arranged in the up-down direction. When the first elastic arm 201 and the second elastic arm 202 are in a free state, the upper contact end 215 and the lower contact end 225 are separated from each other. When the first elastic arm 201 and the second elastic arm 202 are deformed under pressure, the upper contact end 215 moves downward under the action of the first elastic arm 201, and the lower contact end 225 moves upward under the action of the second elastic arm 202. Thus, the upper contact end 215 and the lower contact end 225 move in a direction approaching each other and come into contact with each other. Continue to refer to Figure 9 , in order to strengthen the elasticity of the terminal, the sum of the lengths d4 of the first upper inclined portion 211 and the second upper inclined portion 212 is greater than the length d5 from the upper vertical portion 210 to the lower vertical portion 220. In this embodiment, the first elastic arm 201 and the second elastic arm 202 are symmetrically arranged in the up-down direction. The structures of the first terminal 21 and the second terminal 22 are exactly the same. The only difference is that due to the different installation directions of the first terminal 21 and the second terminal 22 in the insulating body 10, the first terminal 21 and the second terminal 22 are inverted with respect to each other in the insulating body 10 in the up-down direction. Of course, in the embodiment, the structures of the first and second terminals may be different, or substantially the same, as long as they can be assembled from different directions.

[0048] The above embodiment is a preferred embodiment of the present invention, rather than all embodiments. Any equivalent changes made by those of ordinary skill in the art to the technical solution of the present invention by reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector includes an insulating body and at least one row of terminals. The terminals in one row are arranged along a first direction, and each terminal extends forward along a second direction perpendicular to the first direction. The insulating body is provided with opposite first and second surfaces, a receiving groove penetrating through the first and second surfaces, and a fixing groove communicating with the corresponding receiving groove. Each terminal includes a base fixed in the fixing groove, a first elastic arm extending from the base, passing through the receiving groove and protruding out of the first surface, and a second elastic arm extending from the base, passing through the receiving groove and protruding out of the second surface. It is characterized in that: A row of the terminals includes first terminals and second terminals arranged alternately with each other. The base of the first terminal is inserted into a corresponding fixing groove from the first surface, and the base of the second terminal is inserted into a corresponding fixing groove from the second surface.

2. The electrical connector according to claim 1, characterized in that: The terminals are provided with a pair of tape connecting ribs and a pair of guiding ribs extending from their bases. The length of the tape connecting ribs is greater than that of the guiding ribs. The tape connecting ribs of the first terminal extend from its base towards the first surface and are located on both sides of the first elastic arm. The guiding ribs of the first terminal extend from its base towards the second surface and are located on both sides of the second elastic arm. The tape connecting ribs of the second terminal extend from its base towards the second surface and are located on both sides of the second elastic arm. The guiding ribs of the second terminal extend from its base towards the first surface and are located on both sides of the first elastic arm.

3. The electrical connector according to claim 2, wherein: Barbs are provided on the outer edges of the base and the tape connecting ribs.

4. The electrical connector according to claim 1, characterized in that: The fixing grooves include a first fixing groove for receiving the base of the first terminal and a second fixing groove for receiving the base of the second terminal. The first and second fixing grooves are elongated structures extending in a first direction. Along the first direction, a plurality of the first fixing grooves are arranged in a row, and a plurality of the second fixing grooves are arranged in a row and are offset from the first fixing grooves in a second direction. When viewed in the second direction, adjacent first and second fixing grooves have overlapping portions.

5. The electrical connector according to claim 4, wherein: The first and second elastic arms are both provided with arc-shaped contact portions. In a row of terminals arranged in the first direction, the vertical spacing in the second direction between two adjacent first and second fixing grooves is less than 0.16 mm.

6. The electrical connector according to claim 4, wherein: The first terminals are ground terminals, and a plurality of the first terminals are arranged in alignment in the second direction. The second terminals are signal terminals, and a plurality of the second terminals are arranged in alignment in the second direction, so that the terminals are arranged in a multi-row and multi-column matrix.

7. The electrical connector according to claim 6, wherein: The signal terminals are forward offset in the second direction relative to the ground terminals on both sides, and the base of the signal terminal is located between the elastic arms of the adjacent ground terminals on both sides.

8. The electrical connector according to claim 7, wherein: In the second direction, the elastic arms of the signal terminals are located behind the body portions of the ground terminals in the adjacent front row.

9. The electrical connector as claimed in claim 1, wherein: In the same row of terminals arranged in the first direction, the adjacent first terminal and second terminal are offset in the second direction, and the spacing between the two adjacent terminals in the first direction and the spacing in the second direction are both less than 0.8 mm.

10. An electrical connector includes an insulating body and a plurality of terminals arranged in a matrix. The terminals include at least one row of ground terminals and at least one row of signal terminals. The rows of signal terminals and the rows of ground terminals are alternately arranged side by side in a first direction. The insulating body has a first surface, a second surface, and terminal slots penetrating through the first and second surfaces. Each terminal includes a base fixed in the terminal slot, a first elastic arm extending forward from the base out of the first surface, and a second elastic arm extending forward from the base out of the second surface. The terminal is provided with a guiding rib extending from the base to facilitate the installation of the terminal. The guiding rib of the signal terminal extends from the base to the first surface and is located on both sides of the first elastic arm. The guiding rib of the ground terminal extends from the base to the second surface and is located on both sides of the second elastic arm, so that the signal terminals and the ground terminals can be installed on the insulating body from two different surfaces of the insulator.

11. The electrical connector according to claim 10, wherein: The signal terminals and the ground terminals are arranged in a staggered manner along a second direction in which the elastic arms extend. When viewed from the second direction, the bases of adjacent signal terminals and the bases of adjacent ground terminals partially overlap in the first direction.

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