Electrical connector

Abstract

The present invention relates to an electrical connector, which includes an insulating body, a plurality of terminals, a first housing, and a second housing. The insulating body has a front side and a rear side opposite to each other, and a protrusion located on the rear side. The plurality of terminals are disposed on the insulating body. The first housing is sleeved on the insulating body to form an interface, and the interface is located on the front side. The second housing is stacked on the first housing and has a buckle hole on the rear side, and the buckle hole buckles on the protrusion so that the second housing is fixed to the insulating body.

Description

Technical Field

[0001] The present invention relates to an electrical connector. Background Art

[0002] Since the amount of data transmitted between most electronic devices continues to increase, in order to provide users with a more user-friendly experience, the speed of signal transmission between most electronic devices has increased accordingly. An electrical connector is a bridge for electronic signal communication between different electronic devices, and thus is frequently applied to various electronic devices along with the above situation.

[0003] However, under the trend of miniaturization of the volume of electronic devices, the overall volume of the electrical connector is also required to be reduced accordingly. As a result, the structural stability of the electrical connector packaged on the circuit board is affected, and it is prone to gradually decrease as the number of times the electrical connector is used (docked and unplugged) increases.

[0004] Accordingly, how to effectively improve the structural strength of the electrical connector configured on the circuit board under the above trend is a subject that those skilled in the relevant art need to consider and solve. Summary of the Invention

[0005] The present invention provides an electrical connector, in which a protrusion of an insulating body is engaged with a fastening hole of a housing to improve the assembling strength between the housing and the insulating body.

[0006] The electrical connector of the present invention includes an insulating body, a plurality of terminals, a first housing, and a second housing. The insulating body has a front side and a rear side opposite to each other, and a protrusion located at the rear side. The plurality of terminals are disposed on the insulating body. The first housing is sleeved on the insulating body to form an interface, and the interface is located at the front side. The second housing is stacked on the first housing and has a fastening hole located at the rear side, wherein the fastening hole engages with the protrusion to fix the second housing to the insulating body.

[0007] In an embodiment of the present invention, the above-mentioned second housing has a U-shaped body and a rear cover bent and extended from the U-shaped body. The U-shaped body surrounds a part of the insulating body, the rear cover shields the rear side of the insulating body, the fastening hole is located on the rear cover, and the rear cover is fixed to the insulating body by engaging the fastening hole with the protrusion.

[0008] Preferably, the above-mentioned second housing further has a fastening portion bent and extended from the rear cover. The fastening portion is bent toward the U-shaped body and abuts against the insulating body, and the fastening hole straddles the rear cover and the fastening portion.

[0009] Preferably, the above-mentioned fastening portion is formed by stamping and bending the second housing to form a hollow portion between the U-shaped body and the rear cover.

[0010] Preferably, the above-mentioned insulating body has a recess located at the rear side, the protrusion is located in the recess, and the fastening hole engages with the protrusion so that the fastening portion abuts against the inside of the recess.

[0011] Preferably, the above-mentioned first housing is stacked and latched with the U-shaped body.

[0012] Preferably, the above-mentioned first housing exposes the recess of the insulating body, and the protrusion is located in the recess.

[0013] Preferably, there are gaps between the above-mentioned rear cover and the two wings of the U-shaped body respectively.

[0014] Preferably, the above-mentioned electrical connector is a socket electrical connector and is adapted to be disposed on a circuit board, wherein the second housing further has a plurality of pins inserted into the circuit board.

[0015] Preferably, the above-mentioned electrical connector is a Type-C electrical connector.

[0016] Based on the above, the electrical connector is assembled to the insulating body by the first housing and the second housing respectively. The insulating body has a front side and a rear side opposite to each other. The first housing and the insulating body form an interface on the front side. The insulating body has a protrusion on the rear side, and the second housing has a latching hole on the rear side. Since the second housing is stacked on the first housing, during the process of assembling the first and second housings to the insulating body, the latching hole and the protrusion are latched with each other to improve the bonding (fixing) strength between the second housing and the insulating body. When facing the docking and plugging of another electrical connector, the above combination of the first and second housings and the insulating body can effectively resist the plugging and unplugging forces of the electrical connector at the interface, and at the same time helps the first and second housings to avoid the possibility of being easily deformed due to the above plugging and unplugging forces. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of an electrical connector according to an embodiment of the present invention.

[0018] Figure 2 is Figure 1 an exploded view of some components of the electrical connector.

[0019] Figure 3 is Figure 1 a cross-sectional view of the electrical connector.

[0020] Symbol Description

[0021] 100: Electrical connector

[0022] 110: Insulating body

[0023] 111: Recess

[0024] 112: Protrusion

[0025] 120: Terminal

[0026] 130: First housing

[0027] 140: Second housing

[0028] 141: U-shaped body

[0029] 141a, 142a: Pins

[0030] 141b, 131: Latching structure

[0031] 142: Rear cover

[0032] 143: Latching portion

[0033] 144: Latching hole

[0034] 145: Hollow portion

[0035] 200: Circuit board

[0036] A1: Interface

[0037] F1: Axial direction

[0038] G1, G2: Clearance

[0039] S1: Front side

[0040] S2: Rear side

[0041] W1, W2: Flanks. Detailed implementation manner

[0042] Figure 1 is a schematic diagram of an electrical connector according to an embodiment of the present invention. Figure 2 is Figure 1 an exploded view of some components of the electrical connector. Please refer to Figure 1 and Figure 2 simultaneously. In this embodiment, the electrical connector 100 is, for example, a USB Type-C electrical connector, which includes an insulating body 110, a plurality of terminals 120, a first housing 130, and a second housing 140. The insulating body 110 has a front side S1 and a rear side S2 that are arranged along the axial direction F1 and face each other. The insulating body 110 further has a protrusion 112 located at the rear side S2. The plurality of terminals 120 are arranged on the insulating body 110. The first housing 130 is sleeved on the insulating body 110 to form an interface A1, and the interface A1 is located at the front side S1. The second housing 140 is stacked on the first housing 130. The second housing 140 has a latching hole 144. Both the latching hole 144 and the protrusion 112 are located at the rear side S2 and are relative to the interface A1, wherein the latching hole 144 latches onto the protrusion 112 so that the second housing 140 is fixed on the insulating body 110.

[0043] As Figure 2As shown, the first housing 130 is sleeved on the tongue plate structure of the insulating body 110 to form an interface A1 therewith. Then, the second housing 140 is stacked and fastened on the first housing 130.

[0044] Furthermore, the second housing 140 has a U-shaped body 141 and a rear cover 142 bent and extended from the U-shaped body 141. The U-shaped body 141 surrounds a part of the insulating body 110. The rear cover 142 is opposite to the interface A1. The buckle hole 144 is located on the rear cover 142, and the rear cover 142 is fastened to the protrusion 112 by the buckle hole 144 and fixed to the insulating body 110. Moreover, the second housing 140 further has a fastening portion 143 bent and extended from the rear cover 142. The fastening portion 143 is bent towards the U-shaped body 141 and abuts against the insulating body 110. The buckle hole 144 straddles the rear cover 142 and the fastening portion 143 to correspond to the protrusion 112.

[0045] Specifically, the fastening portion 143 is formed by stamping and bending the second housing 140 to form a hollow portion 145 between the U-shaped body 141 and the rear cover 142. That is to say, the structure of the second housing 140 is stamped and bent to form the fastening portion 143, and the removed structure is the hollow portion 145. Correspondingly, the insulating body 110 has a recess 111 located at the rear side S2 and opposite to the interface A1. The protrusion 112 is located in the recess 111. The buckle hole 144 is fastened to the protrusion 112 so that the fastening portion 143 abuts against the structural plane in the recess 111. Accordingly, the second housing 140 is fastened to the protrusion 112 of the insulating body 110 by the buckle hole 144, so that the second housing 140 and the insulating body 110 are kept fixed to each other in the axial direction F1, and the axial direction F1 is also equivalent to the insertion and extraction axial direction of the electrical connector 100.

[0046] In addition, in this embodiment, the U-shaped body 141 of the second housing 140 is stacked on the first housing 130 to form a double-layer structure, and as Figure 2 shown, the U-shaped body 141 has opposite side wings W1, W2 and a fastening structure 141b located on the side wings W1, W2. Similarly, the opposite sides of the first housing 130 also have corresponding fastening structures 131. In this way, the U-shaped body 141 can be smoothly stacked and fastened outside the first housing 130, wherein the first housing 130 exposes the rear side S2 and the recess 111 of the insulating body 110, which is beneficial for the protrusion 112 at the recess 111 to smoothly fasten the buckle hole 144 of the second housing 140.

[0047] Please refer to again Figure 1 and Figure 2, because the back cover 142 and the fastening portion 143 are structurally combined with the protrusion 112 of the insulating body 110 through the fastening hole 144, for the second housing 140, there is no need to additionally provide a structure for connecting the back cover 142 of the U-shaped body 141 to the side wings W1 and W2. That is to say, the back cover 142 of the present embodiment and the two side wings W1 and W2 of the U-shaped body 141 are in a separated state and there are gaps G1 and G2 respectively. This is because the back cover 142 has completed the structural connection relationship with the insulating body 110, and the possibility of its deformation due to the docking and plugging actions of the electrical connector 100 can be effectively avoided.

[0048] Figure 3 is Figure 1 a cross-sectional view of the electrical connector, and it further shows the state in which the electrical connector 100 is disposed on the circuit board 200. Please refer to Figures 1 to 3 , in the present embodiment, the U-shaped body 141 of the second housing 140 also has a plurality of pins 141a located at the side wings W1 and W2, and the back cover 142 of the second housing 140 also has a plurality of pins 142a. These pins 141a and 142a are used to be inserted into the circuit board 200 to achieve the effects of structural configuration and relative grounding. Further, the U-shaped body 141 and the back cover 142 of the second housing 140 are directly structurally fixed to the circuit board 200, and thus the structural connection and fixation effects between the insulating body 110, the first housing 130, the second housing 140 and the circuit board 200 are completed. Furthermore, the structural strengths of the three can be regarded as a whole, and it can more effectively resist the force exerted by the docking and plugging of the electrical connector 100, and has better structural stability.

[0049] In summary, in the above embodiments of the present invention, the electrical connector forms a protrusion at the relative position of the interface by the insulating body, and the second housing also forms a fastening hole at the relative position of the interface. During the process of sleeving the insulating body with the first housing and stacking and fastening the second housing to the first housing, the fastening hole and the protrusion are fastened to each other to improve the bonding (fixing) strength of the first and second housings and the insulating body. Moreover, the second housing is further directly structurally fixed to the circuit board by a plurality of pins inserted into the circuit board, and then an integrated fixed structure of the insulating body, the first housing, the second housing and the circuit board is formed.

[0050] Accordingly, when facing the docking and plugging of another electrical connector, the above combination of the first and second housings and the insulating body at the relative position of the interface can effectively resist the plugging and unplugging forces of the electrical connector at the interface, and at the same time facilitate the first and second housings to avoid the possibility of being easily deformed due to the above plugging and unplugging forces.

Claims

1. An electrical connector, characterized in that: An insulating body having a front side and a rear side opposite to each other, and a protrusion located at the rear side; A plurality of terminals disposed in the insulating body; A first housing sleeved on the insulating body to form an interface located at the front side; And A second housing stacked on the first housing. The second housing has a buckle hole located at the rear side, wherein the buckle hole buckles on the protrusion to fix the second housing to the insulating body. The second housing has an L-shaped body and a rear cover bent and extended from the L-shaped body. The L-shaped body surrounds a part of the insulating body, and the rear cover shields the rear side of the insulating body. The buckle hole is located on the rear cover, and the rear cover is fixed to the insulating body by buckling the buckle hole on the protrusion. The second housing further has a buckling portion bent and extended from the rear cover. The buckling portion is bent towards the L-shaped body and abuts against the insulating body, and the buckle hole straddles the rear cover and the buckling portion.

2. The electrical connector according to claim 1, wherein: The buckling portion is formed by stamping and bending the second housing to form a hollow portion between the L-shaped body and the rear cover.

3. The electrical connector according to claim 1, characterized in that: The insulating body has a recess located at the rear side, and the protrusion is located in the recess. The buckle hole buckles on the protrusion to make the buckling portion abut in the recess.

4. The electrical connector according to claim 1, wherein: The first housing and the L-shaped body are stacked and mutually buckled.

5. The electrical connector according to claim 4, characterized in that: The first housing exposes a recess of the insulating body, and the protrusion is located in the recess.

6. The electrical connector according to claim 1, characterized in that: There are gaps between the rear cover and the two side wings of the L-shaped body respectively.

7. The electrical connector according to claim 1, characterized in that: It is a socket electrical connector adapted to be configured on a circuit board, wherein the second housing further has a plurality of pins inserted into the circuit board.

8. The electrical connector according to claim 1, wherein: It is a USB Type-C electrical connector.

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