Stable connector

Abstract

This utility model discloses a stable connector, including an insulating body, a terminal group, and a housing. The insulating body includes a base and a tongue plate integrally extending forward from the front end of the base. The terminal group is disposed on the insulating body. The housing is sleeved on the insulating body and has a mating cavity, in which the aforementioned tongue plate and contact portion are located. By forming first solder feet for soldering to a PCB board on both sides of the housing, and combining the first solder feet with integrally formed horizontal and vertical portions, the horizontal portions extend to the left and right sides of the housing, and the vertical portions extend downward from one end of the horizontal portions. When assembling the connector with the PCB board, the vertical portion extends into the soldering hole of the PCB board for soldering and fixing. Even if the solder falls off later, the vertical portion abuts against the inner wall of the soldering hole, and the housing is not prone to loosening or falling off during repeated insertion and removal, thus not affecting the data transmission rate or shortening the connector's service life.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and in particular to a stable connector. Background Technology

[0002] With the continuous development and upgrading of electronic products, these products are becoming increasingly ubiquitous in daily life, and consumers are increasingly demanding miniaturization of electronic products. Electrical connectors such as USB and Type-C, with their advantages of speed, plug-and-play functionality, and ease of use and installation, are gradually becoming the trend in modern data transmission. Currently, USB and Type-C connectors are the mainstream interfaces for computers, mobile phone chargers, and car chargers. As USB interface technology further improves, its application will expand even further.

[0003] Connectors typically connect to a PCB board via soldering terminals. Since connectors undergo repeated mating and unmating during use, existing connectors are prone to loosening or even detachment of the housing after repeated use. This not only affects data transmission speed but also shortens the connector's lifespan. To address this issue, some manufacturers have begun to create connecting leads by bending the left and right sides of the connector housing outwards. These leads are then soldered to corresponding pads on the PCB board. While this design effectively increases the bonding strength between the housing and the PCB board, the solder on the connecting leads and pads can still detach after repeated mating and unmating, and the aforementioned problem persists, failing to fundamentally solve the issue. Therefore, it is necessary to improve existing connectors. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a stable connector that can effectively solve the problem that after the solder on the connector pins and pads falls off, the outer shell is prone to loosening or even falling off, which not only affects the data transmission rate but also shortens the service life of the connector.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stable connector includes an insulating body, a terminal group, and a housing. The insulating body includes a base and a tongue plate integrally extending forward from the front end of the base. The terminal group is disposed on the insulating body and has a contact portion and a solder portion. The contact portion is exposed on the surface of the tongue plate, and the solder portion extends rearward from the base. The housing is fitted onto the insulating body and has a mating cavity. The aforementioned tongue plate and contact portion are both located within the mating cavity. Both sides of the housing are formed with first solder feet for soldering and fixing to a PCB board. The first solder feet include an integrally formed transverse portion and a longitudinal portion. The transverse portion extends laterally from the side of the housing, and the longitudinal portion extends downward from one end of the transverse portion.

[0007] As a preferred embodiment, the terminal group includes multiple flat terminals and multiple flexible terminals, which are arranged alternately.

[0008] As a preferred embodiment, the front side of the plurality of flat terminals extends outward with a fixing part, which is embedded inside the tongue plate.

[0009] As a preferred embodiment, each of the plurality of elastic terminals is provided with a reinforcing portion.

[0010] As a preferred embodiment, spring tabs are provided on the front peripheral side of the outer shell, and the spring tabs partially extend into the insertion cavity.

[0011] As a preferred embodiment, the upper surface of the base is provided with a first limiting groove, and the upper surface of the outer shell is formed with a first limiting piece. The first limiting piece is embedded in the first limiting groove for limiting, so that the assembly of the outer shell and the insulating body is more secure and reliable.

[0012] As a preferred embodiment, the lower surface of the base is provided with a second limiting groove, and the lower surface of the outer shell is formed with a second limiting piece. The second limiting piece is bent and extends into the second limiting groove for limiting, so that the assembly of the outer shell and the insulating body is more secure and reliable.

[0013] As a preferred embodiment, the upper surface of the base is provided with a first limiting part, and the rear end of the outer shell is provided with a groove. The first limiting part is located in the groove and abuts against the edge of the groove, ensuring more precise assembly of the insulating body and the outer shell.

[0014] As a preferred embodiment, the rear end of the housing extends downward to form a second welding foot, the top of which abuts against the bottom of the first limiting portion, effectively preventing the second welding foot from deforming upward.

[0015] As a preferred embodiment, the lower surface of the base is provided with a second limiting part, which abuts against the rear edge of the outer shell to ensure more precise assembly of the insulating body and the outer shell.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By forming first soldering feet on both sides of the outer shell for soldering and fixing to the PCB board, and with the first soldering feet including an integrally formed horizontal part and a vertical part, the horizontal part extends to the left and right sides of the outer shell, and the vertical part extends downward from one end of the horizontal part. When the connector is assembled with the PCB board, the vertical part extends into the soldering hole of the PCB board for soldering and fixing. Even if the solder falls off later, the vertical part abuts against the inner wall of the soldering hole, and the outer shell is not likely to loosen or even fall off during repeated insertion and removal. This will not affect the data transmission rate, nor will it shorten the service life of the connector.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional assembly diagram of a preferred embodiment of the present invention;

[0020] Figure 2 This is a three-dimensional assembly schematic diagram of a preferred embodiment of the present invention from another angle;

[0021] Figure 3 yes Figure 1 Exploded view;

[0022] Figure 4 yes Figure 2 Exploded view;

[0023] Figure 5 This is a cross-sectional view of a preferred embodiment of the present invention.

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10. Insulating body 11. Base

[0026] 111. First limiting groove; 112. Second limiting groove

[0027] 113. First limiting part; 114. Second limiting part

[0028] 12. Tongue plate 20. Terminal assembly

[0029] 201. Contact part; 202. Welding part

[0030] 21. Flat terminal 211. Fixing part

[0031] 22. Flexible terminal; 221. Reinforcing part

[0032] 30. Outer shell 301. Insertion cavity

[0033] 31. First welding leg 311. Lateral part

[0034] 312, longitudinal section; 32, spring clip.

[0035] 33. First limiting piece; 34. Second limiting piece

[0036] 35. Slot 36. Second welding foot. Detailed Implementation

[0037] Please refer to Figures 1 to 5 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which includes an insulating body 10, a terminal group 20, and a housing 30.

[0038] The insulating body 10 includes a base 11 and a tongue plate 12 integrally extended forward from the front end of the base 11. In this embodiment, a first limiting groove 111 is provided on the upper surface of the base 11, and a second limiting groove 112 is provided on the lower surface of the base 11. In addition, a first limiting part 113 is protruding on the upper surface of the base 11, and a second limiting part 114 is protruding on the lower surface of the base 11. The second limiting part 114 abuts against the rear edge of the outer shell 30 to ensure more precise assembly of the insulating body 10 and the outer shell 30.

[0039] The terminal group 20 is disposed on the insulating body 10. The terminal group 20 has a contact portion 201 and a welding portion 202. The contact portion 201 is exposed on the surface of the tongue plate 12, and the welding portion 202 extends rearward from the base 11. In this embodiment, the terminal group 20 includes a plurality of flat terminals 21 and a plurality of elastic terminals 22, which are arranged alternately. Specifically, the front end side of the plurality of flat terminals 21 extends outward with a fixing portion 211, which is embedded inside the tongue plate 12. Each of the plurality of elastic terminals 22 is provided with a reinforcing portion 221.

[0040] The outer shell 30 is fitted onto the insulating body 10. The outer shell 30 has a insertion cavity 301, in which the aforementioned tongue plate 12 and contact portion 201 are located. Both sides of the outer shell 30 have first solder feet 31 formed for soldering to the PCB board. Each first solder foot 31 includes an integrally formed transverse portion 311 and a longitudinal portion 312. The transverse portion 311 extends laterally from the sides of the outer shell 30, and the longitudinal portion 312 extends downward from one end of the transverse portion 311. In this embodiment, spring tabs 32 are provided on the front peripheral side of the outer shell 30, and the spring tabs 32 partially extend into the insertion cavity 301. A first limiting piece 33 is formed on the upper surface of the outer shell 30. The first limiting piece 33 is embedded in the first limiting groove 111 for limiting. The lower surface of the outer shell 30 is formed with a second limiting piece 34, which is bent and extends into the second limiting groove 112 for limiting, making the assembly of the outer shell 30 and the insulating body 10 more secure and reliable. In addition, the rear end of the outer shell 30 is provided with a groove 35, and the first limiting part 113 is located in the groove 35 and abuts against the edge of the groove 35, ensuring that the assembly of the insulating body 10 and the outer shell 30 is more precise. The rear end of the outer shell 30 extends downward with a second welding foot 36, the top of which abuts against the bottom of the first limiting part 113, effectively preventing the second welding foot 36 from deforming upward.

[0041] The key design feature of this utility model is:

[0042] By forming first soldering feet on both sides of the outer shell for soldering and fixing to the PCB board, and with the first soldering feet including an integrally formed horizontal part and a vertical part, the horizontal part extends to the left and right sides of the outer shell, and the vertical part extends downward from one end of the horizontal part. When the connector is assembled with the PCB board, the vertical part extends into the soldering hole of the PCB board for soldering and fixing. Even if the solder falls off later, the vertical part abuts against the inner wall of the soldering hole, and the outer shell is not likely to loosen or even fall off during repeated insertion and removal. This will not affect the data transmission rate, nor will it shorten the service life of the connector.

[0043] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A stable connector, characterized in that: The device includes an insulating body, a terminal assembly, and a housing. The insulating body includes a base and a tongue plate integrally extending forward from the front end of the base. The terminal assembly is disposed on the insulating body and has a contact portion and a soldering portion. The contact portion is exposed on the surface of the tongue plate, and the soldering portion extends backward from the base. The housing is fitted onto the insulating body and has a insertion cavity. The aforementioned tongue plate and contact portion are both located in the insertion cavity, and both sides of the housing are formed with first soldering feet for soldering and fixing to a PCB board. The first soldering feet include an integrally formed transverse portion and a longitudinal portion. The transverse portion extends to the left and right sides of the housing, and the longitudinal portion extends downward from one end of the transverse portion.

2. The stable connector according to claim 1, characterized in that: The terminal group includes multiple flat terminals and multiple flexible terminals, which are arranged alternately.

3. The stable connector according to claim 2, characterized in that: The front side of the plurality of flat terminals has a fixing part extending outward, which is embedded inside the tongue plate.

4. The stable connector according to claim 2, characterized in that: Each of the multiple elastic terminals has a reinforcing portion protruding from it.

5. The stable connector according to claim 1, characterized in that: Each of the front peripheral surfaces of the outer casing is provided with a spring tab, which extends partially into the insertion cavity.

6. The stable connector according to claim 1, characterized in that: The upper surface of the base is provided with a first limiting groove, and the upper surface of the outer shell is formed with a first limiting piece, which is embedded in the first limiting groove for limiting.

7. The stable connector according to claim 1, characterized in that: The lower surface of the base is provided with a second limiting groove, and the lower surface of the outer shell is formed with a second limiting piece, which is bent and inserted into the second limiting groove for limiting.

8. The stable connector according to claim 1, characterized in that: The upper surface of the base is provided with a first limiting part, and the rear end of the outer shell is provided with a groove, the first limiting part being located in the groove and abutting against the edge of the groove.

9. The stable connector according to claim 8, characterized in that: The rear end of the housing extends downward to form a second welding foot, the top of which abuts against the bottom of the first limiting portion.

10. The stable connector according to claim 1, characterized in that: The lower surface of the base is provided with a second limiting part, which abuts against the rear edge of the outer shell.

Images