Electrical connector

Abstract

The present application discloses an electrical connector, which comprises: an insulating body, a conductive terminal and a shell, wherein the shell comprises a first shell, the first shell is a draw-out molded shell, the first shell comprises a first barrel portion and a second barrel portion, the inner surface of the first barrel and the inner wall surface of the second barrel are located in the same plane, the wall thickness of the first barrel is less than the wall thickness of the second barrel, the shell further comprises a second shell, the second shell comprises a third barrel portion and a flange portion, the flange portion extends from the third barrel portion in a direction away from the inner cavity to form a trumpet shape, the third barrel portion is fixed to the first barrel portion, so that the corresponding proportion can be adjusted to meet various proportion requirements.

Description

Technical Field

[0001] The present application relates to the field of connectors, and in particular to an electrical connector. Background Art

[0002] In the existing connector waterproof structure, the frame head usually adopts the UV glue application process, but the UV glue is fluid. When the L / H ratio is too large, the UV glue will collapse, resulting in the length dimension L failing to meet the requirements. After assembly, the UV compression amount is too small, affecting the air tightness of the product. Summary of the invention

[0003] The technical problem to be solved by the present application is to provide an electrical connector with good airtightness.

[0004] In order to solve the above technical problems, the technical solution of this application is:

[0005] An electrical connector, comprising: an insulating body, a conductive terminal and a shell, wherein the insulating body comprises a base and a tongue portion extending forward from the base, wherein the base is fixedly arranged with the shell, wherein the shell is provided with an inner cavity for inserting a docking connector, wherein the tongue portion is at least partially accommodated in the inner cavity, wherein the tongue portion has a first surface and a second surface, wherein the first surface and the second surface are respectively located at opposite sides of the tongue portion in a thickness direction;

[0006] The conductive terminals are fixed to the insulating body, and the conductive terminals include a first row of conductive terminals and a second row of conductive terminals. The first row of conductive terminals each have a first contact portion, a first fixing portion, and a first welding portion. The second row of conductive terminals each have a second contact portion, a second fixing portion, and a second welding portion. The first contact portion is exposed on the first surface, and the second contact portion is exposed on the second surface. The first fixing portion and the second fixing portion are buried and fixed in the insulating body. The first welding portion and the second welding portion are exposed outside the insulating body. The first welding portion and the second welding portion are used to connect to external equipment.

[0007] The shell comprises a first shell, the inner cavity is located in the first shell, the first shell is a draw-molded shell, the first shell comprises a first barrel portion and a second barrel portion, the second barrel portion is located behind the first barrel portion in the front-to-back direction, the shell comprises an inner wall surface facing the inner cavity and an outer wall surface facing away from the inner cavity relative to the inner wall surface, and the wall thickness of the shell is formed between the inner wall surface and the outer wall surface;

[0008] The inner surface of the first cylinder and the inner wall surface of the second cylinder are located in the same plane, the wall thickness of the first cylinder is smaller than the wall thickness of the second cylinder, the outer shell also includes a second shell, the second shell includes a third cylinder portion and a flange portion, the flange portion extends from the third cylinder portion in a direction away from the inner cavity to form a trumpet shape, and the third cylinder portion is fixed to the first cylinder portion.

[0009] Compared with the related art, the wall thickness of the first cylinder of the present application is smaller than that of the second cylinder, and the third cylinder portion is fixed to the first cylinder portion, so that the L / H ratio can be adjusted to meet various ratio requirements, reduce the risk of rubber collapse, and thus have better air tightness.

[0010] Furthermore, the outer shell includes a third shell, which is a draw-out molded shell. The third shell includes a front end and a rear end, the front end contacts the front surface of the base, the rear end is sleeved on the outer peripheral surface of the base, the inner surface of the rear end contacts the outer peripheral surface of the base, and the outer surface of the rear end contacts the inner surface of the first shell.

[0011] Furthermore, the electrical connector also includes a waterproof rubber ring, which includes a first surface and a second surface, the first surface of the waterproof rubber ring contacts the outer surface of the barrel portion, and the second surface of the waterproof rubber ring contacts the rear surface of the flange portion.

[0012] Furthermore, the shell includes a fourth shell and a fifth shell, the fourth shell and the fifth shell are located behind the first shell, the fourth shell and the fifth shell are both stamped shells, and the fourth shell and the fifth shell are buckled with each other.

[0013] Further, the electrical connector includes an intermediate shielding plate, which is at least partially located between the first row of conductive terminals and the second conductive terminals in the thickness direction of the tongue plate portion. The intermediate shielding plate is provided with a first barb and a second barb respectively exposed on the edges on both sides in the width direction of the tongue plate portion, and the first barb and the second barb are used to snap with the docking connector.

[0014] Furthermore, the second shell is a draw-molded shell.

[0015] Furthermore, the tongue plate portion has a front end and a rear end, the front end of the tongue plate portion extends forward from the inner cavity beyond the outer shell, the rear end is accommodated in the inner cavity, and the first barb and the second barb are located in front of the outer shell.

[0016] Furthermore, the first welding portions and the second welding portions are arranged in two rows, the first welding portions are parallel to the first contact portions, and the second welding portions are parallel to the second contact portions.

[0017] Furthermore, the insulating body and the conductive terminal are formed into one piece through an insert molding process.

[0018] Furthermore, the first row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals, and the second row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of an electrical connector according to an embodiment of the present application.

[0020] Figure 2 It is a three-dimensional exploded schematic diagram of an electrical connector according to an embodiment of the present application.

[0021] Figure 3 It is a cross-sectional schematic diagram of an electrical connector according to an embodiment of the present application.

[0022] Figure 4 1 is a schematic top view of an electrical connector according to an embodiment of the present application.

[0023] Figure 5 It is a three-dimensional schematic diagram of a first shell according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0025] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0026] It should be understood that the words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantity limitation, but indicate the presence of at least one; "plurality" indicates a quantity of two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for convenience of description and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects.

[0027] The pipe connection assembly of the exemplary embodiment of the present application is described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can complement or combine with each other.

[0028] like Figures 1 to 5 An electrical connector 100 is shown, comprising: an insulating body 1, conductive terminals 2, a shell 3 and a waterproof rubber ring 4. The insulating body 1 is formed by injection molding of plastic particles, the conductive terminals are formed by stamping of metal strips, and the shell 3 is made of metal material.

[0029] The conductive terminal 2 is fixed to the insulating body 1, and the insulating body 1 includes a base 11 and a tongue portion 12 extending forward from the base 11. The base 11 is fixed to the housing 3, and the housing 3 is provided with an inner cavity 30 for inserting a docking connector (plug connector), and the tongue portion 12 is at least partially accommodated in the inner cavity 30. In the illustrated embodiment, the tongue portion 12 extends forward beyond the housing 3 to form a hanging plate, which is conducive to the miniaturization design of the electrical connector 100. Of course, in other embodiments, the tongue portion 12 can also be completely located in the housing 3, so as to meet the specification requirements of USB Type C.

[0030] The tongue plate portion 12 has a first surface 121 and a second surface 122, and the first surface 12 and the second surface 122 are located at the upper and lower sides of the thickness direction of the tongue plate portion 12. The conductive terminal 2 includes a first row of conductive terminals 21 and a second row of conductive terminals 22, the first row of conductive terminals 21 has a first contact portion 211, a first fixing portion 212 and a first welding portion 213, and the second row of conductive terminals 22 has a second contact portion 221, a second fixing portion 222 and a second welding portion 223. The first contact portion 211 is exposed on the first surface 121, the second contact portion 221 is exposed on the second surface 122, and the first fixing portion 212 and the second fixing portion 222 are buried and fixed in the insulating body 1. The first welding portion 213 and the second welding portion 223 are exposed outside the insulating body 1, and the first welding portion 213 and the second welding portion 223 are used to connect external devices. The first contact portion 211 and the second contact portion 221 can contact with the conductive terminals of the docking connector.

[0031] The outer shell 3 includes a first shell 31, and the inner cavity 30 is located in the first shell 31. The first shell 31 is a draw-molded shell. The first shell 31 includes a first barrel portion 311 and a second barrel portion 312, and the second barrel portion 312 is located behind the first barrel portion 311 in the front-to-back direction. The outer shell 3 includes an inner wall surface 313 facing the inner cavity 30 and an outer wall surface 314 away from the inner cavity 30 relative to the inner wall surface 313, and the wall thickness of the outer shell 3 is formed between the inner wall surface 313 and the outer wall surface 314. The inner surface 313 of the first barrel 311 and the inner wall surface 313 of the second barrel 312 are located in the same plane, and the wall thickness of the first barrel 311 is less than the wall thickness of the second barrel 312.

[0032] The housing 3 also includes a second shell 32, which includes a third barrel portion 321 and a flange portion 322. The flange portion 322 extends from the third barrel portion 321 in a direction away from the inner cavity 30 to form a trumpet shape, and the third barrel portion 321 is fixed to the first barrel portion 311. When the L / H ratio of the existing connector waterproof structure is too large, the UV glue of the waterproof rubber ring 4 will collapse, resulting in the length dimension L failing to meet the requirements. After assembly, the compression amount of the waterproof rubber ring 4 is too small, affecting the air tightness of the product. This application is as follows Figure 3As shown, the wall thickness of the first cylinder 311 is less than the wall thickness of the second cylinder 312, thus forming a step structure. The sum H of the thickness of the third cylinder 321 and the first cylinder 311 is greater than the thickness H1 of the second cylinder 312, thereby adjusting the L / H ratio. For example, the thickness of the third cylinder 321 can be changed to flexibly adjust the problem, thereby improving the glue collapse and poor glue overflow at the frame mouth, thereby achieving better air tightness. In addition, the main advantages of this structure include: (1) improving the poor UV glue collapse of the waterproof rubber ring 4, improving the glue dispensing yield, and reducing production costs; (2) wide applicability, the step size can be adjusted to meet a variety of L / H ratio requirements. The upper surface of the third cylinder 321 is located above the upper surface of the second cylinder 312.

[0033] The housing 3 also includes a third shell 33 which is a draw-out molded shell. The third shell 33 includes a front end 331 and a rear end 332, the front end 331 contacts the front surface of the base 11, the rear end 332 is sleeved on the outer peripheral surface of the base 11, the inner surface of the rear end 332 contacts the outer peripheral surface of the base 11, and the outer surface of the rear end 332 contacts the inner surface of the first shell 31. The third shell 33 of the draw-out structure is coated on the base 11, which enhances the strength of the base 11 and is conducive to the bonding of the internal waterproof glue.

[0034] The waterproof rubber ring 4 includes a first surface 41 and a second surface 42. The first surface 41 of the waterproof rubber ring 4 contacts the outer surface 323 of the barrel portion 321, and the second surface 42 of the waterproof rubber ring 4 contacts the rear surface 324 of the flange portion 322. The electrical connector 100 also includes an inner waterproof ring 6, which is sealed at the rear section of the base 11. The inner waterproof ring 6 is used to prevent water entering from the inner cavity 30 from flowing into the interior of the electronic device, which may be a smart phone, a tablet computer, a laptop computer, a desktop computer, or the like.

[0035] The housing 3 includes a fourth housing 34 and a fifth housing 35, which are located behind the first housing 31, and are both stamped housings. The fourth housing 34 and the fifth housing 35 are buckled together. The fourth housing 34 is provided with a through hole 341 that penetrates in the up-down direction, through which the coplanarity of the first welding portion 213 and the second welding portion 223 can be observed, thereby facilitating inspection. The first housing 34 is also provided with an end foot 342, and the base 11 is provided with a matching hole 111 that penetrates in the vertical direction. The end foot 342 is inserted into the matching hole 111 and is fixed with the base 11, thereby enhancing the fixed connection between the housing 3 and the insulating body 1. The fifth housing 35 is provided with a main body 351 and two wing parts 352 connected to the opposite ends of the main body 351 on both sides, and each wing part 352 is provided with a screw hole 353, and the screw hole 353 is used for screw installation and fixing the electrical connector 100 to the external circuit board.

[0036] The rear section of the insulating body 1 is located between the fourth shell 34 and the fifth shell 35 . The fourth shell 34 has a rear shell wall 343 located behind the insulating body 1 , thereby enhancing the shielding performance of the electrical connector 100 .

[0037] The electrical connector 100 includes an intermediate shielding sheet 5, which is located between the first row of conductive terminals 21 and the second row of conductive terminals 22 in the thickness direction of the tongue portion 12. The intermediate shielding sheet 5 is provided with a first barb 51 exposed at one edge of the tongue portion 12, and a second barb 52 exposed at the other edge of the tongue portion 12. The first barb 51 and the second barb 52 are used to snap with the mating connector. The first barb 51 and the second barb 52 are respectively exposed at both side edges of the tongue portion 12 in the width direction.

[0038] The tongue plate portion 12 has a front end portion 123 and a rear end portion 124 . The front end portion 123 of the tongue plate portion 12 is located at the front end of the inner cavity 30 , and the rear end portion 124 of the tongue plate portion 12 is accommodated in the inner cavity 30 . The first barb 514 and the second barb 524 are located in front of the outer shell 3 .

[0039] The first soldering portions 213 and the second soldering portions 223 are arranged in two rows, which is beneficial to reducing the width of the electrical connector and miniaturizing the design. The first soldering portions 213 are parallel to the first contacting portions 211 , and the second soldering portions 223 are parallel to the second contacting portions 221 .

[0040] The insulating body 1 and the first row of conductive terminals 21 and the second row of conductive terminals 22 are formed into one piece by insert molding. In an optional embodiment, it can also be achieved by two injection molding or three injection molding.

[0041] The first row of conductive terminals 21 includes signal terminals, ground terminals, power terminals and detection terminals, and the second row of conductive terminals 22 also includes signal terminals, ground terminals, power terminals and detection terminals. The electrical connector 100 may be a USB Type C connector.

[0042] Compared with the prior art, the wall thickness of the first cylinder 311 is smaller than the wall thickness of the second cylinder 312, thus forming a step structure. The sum H of the thickness of the third cylinder 321 and the first cylinder 311 is greater than the thickness H1 of the second cylinder 312, thereby adjusting the L / H ratio and improving the poor glue collapse and frame overflow. The main advantages of this structure are: (1) improving the UV glue collapse of the waterproof rubber ring 4, thereby improving the glue dispensing yield and reducing production costs; (2) wide applicability, the step size is adjustable to meet a variety of L / H ratio requirements.

[0043] The present application is not limited to the above-mentioned specific implementation modes. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work are all within the protection scope of the present application.

Claims

1. An electrical connector, comprising: An insulating body, a conductive terminal and a shell, wherein the insulating body comprises a base and a tongue portion extending forward from the base, the base is fixedly arranged with the shell, the shell is provided with an inner cavity for inserting a docking connector, the tongue portion is at least partially accommodated in the inner cavity, the tongue portion has a first surface and a second surface, the first surface and the second surface are respectively located at opposite sides of the tongue portion in a thickness direction; The conductive terminals are fixed to the insulating body, and the conductive terminals include a first row of conductive terminals and a second row of conductive terminals. The first row of conductive terminals each have a first contact portion, a first fixing portion, and a first welding portion. The second row of conductive terminals each have a second contact portion, a second fixing portion, and a second welding portion. The first contact portion is exposed on the first surface, and the second contact portion is exposed on the second surface. The first fixing portion and the second fixing portion are buried and fixed in the insulating body. The first welding portion and the second welding portion are exposed outside the insulating body. The first welding portion and the second welding portion are used to connect to external equipment. The shell comprises a first shell, the inner cavity is located in the first shell, the first shell is a draw-molded shell, the first shell comprises a first barrel portion and a second barrel portion, the second barrel portion is located behind the first barrel portion in the front-to-back direction, the shell comprises an inner wall surface facing the inner cavity and an outer wall surface facing away from the inner cavity relative to the inner wall surface, and the wall thickness of the shell is formed between the inner wall surface and the outer wall surface; It is characterized in that the inner surface of the first cylinder and the inner wall surface of the second cylinder are located in the same plane, the wall thickness of the first cylinder is smaller than the wall thickness of the second cylinder, the outer shell also includes a second shell body, the second shell body includes a third cylinder part and a flange part, the flange part extends from the third cylinder part in a direction away from the inner cavity to form a trumpet shape, the third cylinder part is fixed to the first cylinder part, and the sum of the thickness of the third cylinder part and the first cylinder is greater than the thickness of the second cylinder part; the electrical connector also includes a waterproof rubber ring made of UV glue, the waterproof rubber ring includes a first surface and a second surface, the first surface of the waterproof rubber ring is in contact with the outer surface of the cylinder part, and the second surface of the waterproof rubber ring is in contact with the rear surface of the flange part.

2. The electrical connector according to claim 1, wherein: The outer shell includes a third shell, which is a draw-out molded shell. The third shell includes a front end and a rear end. The front end contacts the front surface of the base, the rear end is sleeved on the outer circumferential surface of the base, the inner surface of the rear end contacts the outer circumferential surface of the base, and the outer surface of the rear end contacts the inner surface of the first shell.

3. The electrical connector according to claim 2, wherein: The shell comprises a fourth shell and a fifth shell, the fourth shell and the fifth shell are located behind the first shell, the fourth shell and the fifth shell are both stamped shells, and the fourth shell and the fifth shell are buckled with each other.

4. The electrical connector according to claim 3, wherein: The electrical connector includes an intermediate shielding plate, which is at least partially located between the first row of conductive terminals and the second conductive terminal in the thickness direction of the tongue plate portion. The intermediate shielding plate is provided with a first barb and a second barb respectively exposed at the edges on both sides in the width direction of the tongue plate portion, and the first barb and the second barb are used to snap with the docking connector.

5. The electrical connector according to claim 4, wherein: The second shell is a draw-molded shell.

6. The electrical connector according to claim 5, wherein: The tongue plate portion has a front end portion and a rear end portion, the front end portion of the tongue plate portion extends forward from the inner cavity beyond the outer shell, the rear end portion is accommodated in the inner cavity, and the first barb and the second barb are located in front of the outer shell.

7. The electrical connector according to claim 6, wherein: The first welding portions and the second welding portions are arranged in two rows, the first welding portions are parallel to the first contact portions, and the second welding portions are parallel to the second contact portions.

8. The electrical connector according to claim 7, wherein: The insulating body and the conductive terminal are formed into one piece through an insert molding process.

9. The electrical connector according to any one of claims 1 to 8, characterized in that: The first row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals, and the second row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals.

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