CN216818685U

CN216818685U - USB connector

Info

Publication number: CN216818685U
Application number: CN202220240433.4U
Authority: CN
Inventors: 涂瀚; 王伟; 王振江
Original assignee: Yiteng Electronic Science & Technology Kunshan Co ltd
Current assignee: Jiangsu Yiteng Electronic Technology Co.,Ltd.
Priority date: 2022-01-28
Filing date: 2022-01-28
Publication date: 2022-06-24
Anticipated expiration: 2032-01-28

Abstract

The utility model discloses a USB connector, which comprises a shell and a terminal module accommodated in the shell, the terminal module comprises a first terminal, a second terminal and an injection molding piece, the injection molding piece sequentially comprises a first horizontal part, a vertical part and a second horizontal part, the second horizontal portion has a level higher than that of the first horizontal portion, the vertical portion is used to connect the first and second horizontal portions, the second terminal comprises an arc-shaped part, a transition part, a fixing part and a connecting part in sequence, the first horizontal part, the vertical part and the second horizontal part are respectively provided with an accommodating groove, a transition groove and a fixing groove for accommodating the arc-shaped part, the transition part and the fixing part, the degree of depth of fixed slot is greater than the thickness of fixed part, the width of fixed slot with the width of fixed part is the same, be provided with in the fixed slot and be used for fixing the fixed block of fixed part.

Description

USB connector

Technical Field

The utility model belongs to the technical field of connectors, and particularly relates to a USB connector.

Background

A terminal for transmitting current in a USB connector sold in the market is in the form of a spring plate, and an arc-shaped portion is provided at an end of the terminal for electrically connecting with a male terminal after being plugged. Generally, a plurality of terminals for transmitting current are arranged on one connector, but due to manufacturing and assembling errors and structural design reasons, the terminals may move on an injection molding part, so that the heights of a plurality of arc-shaped parts are uneven, namely, the terminals are located at different horizontal heights, on one hand, poor contact during the interaction of the male connector and the female connector is easily caused, and on the other hand, when the male connector is plugged in, the terminals are easily turned backwards under the blocking of the higher arc-shaped parts, and finally, the function is abnormal. Even with structural improvements in the terminals and injection molded parts, such problems are unavoidable.

Disclosure of Invention

In view of the above, in order to overcome the defects of the prior art, the present invention provides an improved USB connector, which can ensure the heights of the arc-shaped portions of the terminals to be consistent, and avoid the problems of contact and bending.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a USB connector comprising a housing and a terminal module contained within the housing, the terminal module comprising first and second terminals and an injection molded part, the injection molding piece sequentially comprises a first horizontal part, a vertical part and a second horizontal part, the horizontal height of the second horizontal part is higher than that of the first horizontal part, the vertical part is used for connecting the first horizontal part and the second horizontal part, the second terminal sequentially comprises an arc-shaped part, a transition part, a fixing part and a connecting part, the first horizontal part, the vertical part and the second horizontal part are respectively provided with an accommodating groove, a transition groove and a fixing groove for accommodating the arc-shaped part, the transition part and the fixing part, the depth of the fixed groove is greater than the thickness of the fixed part, the width of the fixed groove is the same as the width of the fixed part, and a fixed block used for fixing the fixed part is arranged in the fixed groove.

According to some preferred embodiments of the present invention, the horizontal portion has a plurality of steps thereon, and the fixing groove is formed between adjacent steps. The step extends along the vertical direction, namely is perpendicular to the horizontal part. The height of the step is set to match different terminals and control the depth of the fixing groove, and then the fixing block is filled in the fixing groove. Another function of the step is to limit lateral movement of the terminal in the horizontal direction.

According to some preferred embodiments of the present invention, the total thickness of the fixing block and the fixing portion is the same as or greater than the depth of the fixing groove, so that after the terminal module is assembled with the housing, the fixing block can only press the fixing portion, the horizontal positions of the plurality of second terminals are the same, and the uneven phenomenon of the arc-shaped portion is avoided.

According to some preferred embodiments of the present invention, the fixing block is made of a non-metal material, so as to avoid electrical connection with the terminal, such as a polymer material.

According to some preferred embodiments of the present invention, the fixing block is formed after the step is melted into the fixing groove. The height of the step is raised when the connector is manufactured into an injection molding part, then the part beyond the design is melted after the second terminal is assembled, the second terminal enters the fixing groove and is filled between the fixing block and the step to form the fixing block, and then the fixing part of the second terminal is fixed, and the transverse movement in the horizontal direction and the vertical movement in the vertical direction are limited. Under this situation, the material of fixed block is the material of injection molding promptly.

According to some preferred implementation aspects of the utility model, the side edge of the injection molding part is provided with a clamping portion, the side edge of the shell is provided with a clamping groove for accommodating the clamping portion, and the width of the clamping groove is smaller than that of the clamping portion. One end of the clamping portion, which is close to the clamping groove, is provided with an insertion inclined plane. The joint portion extends along the horizontal direction, the side of injection molding still has spacing portion, spacing portion extends along vertical direction. The limiting part and the clamping part are perpendicular to each other. The limiting part is used for blocking the shell and positioning the insertion depth of the terminal module. The clamping portion is used for being inserted into the clamping groove, and connection between the terminal module and the shell is achieved.

According to some preferred implementation aspects of the present invention, the side of the housing has a first extension portion and a second extension portion, the first extension portion and the second extension portion form the engaging groove therebetween, one side of the first extension portion and the second extension portion, which are close to each other, has an arc-shaped protrusion, and a distance between the arc-shaped protrusion and the opposite extension portion is smaller than a width of the engaging portion. First extension and second extension belong to the partly of casing side, are less than the width of joint portion through the distance between two extensions, and then realize being connected between terminal module and the casing. In some embodiments, one side of the first extension part, which is close to the second extension part, is provided with an arc-shaped protrusion, and the distance between the arc-shaped protrusion and the second extension part is smaller than the width of the clamping part. In other embodiments, the arc-shaped protrusions may be arranged on the second extension portion, or the arc-shaped protrusions may be arranged on both extension portions, and the arc-shaped protrusions may be staggered to realize better connection.

According to some preferred implementation aspects of the present invention, the housing has a first resilient piece, a second resilient piece and a third resilient piece, the second resilient piece is located between the two first resilient pieces, and the third resilient piece is located on a side surface of the housing. The spring plate is used for fixedly connecting the male end and the connector.

According to some preferred implementation aspects of the utility model, the second elastic sheet and the third elastic sheet are arranged in a direction opposite to the arrangement direction of the first elastic sheet, so as to achieve better connection.

According to some preferred embodiments of the present invention, the housing is provided with a first fixing portion and a second fixing portion for fixing the connector, the fixing portions extending outward from the housing. The first fixing portion and the second fixing portion are used for better connecting the connector with other components. In some embodiments, the first fixing portion extends outwards from the housing, and the second fixing portion extends downwards after extending outwards from the housing, that is, the ends of the first fixing portion and the second fixing portion are perpendicular to each other, so that the connector can be fixed in two directions, and the fixing effect is enhanced.

Compared with the prior art, the utility model has the advantages that: according to the USB connector, the fixing block is arranged in the fixing groove to limit the position of the fixing part of the second terminal, so that the second terminal is prevented from moving in the vertical direction, the horizontal heights of the arc-shaped parts of the second terminal are consistent, and the problems of poor contact and terminal turnover caused by inconsistent horizontal heights of the arc-shaped parts when the connector is connected are avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a perspective view of a USB connector in accordance with a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of section I of FIG. 1;

FIG. 3 is a perspective view of a terminal module from a first perspective in accordance with a preferred embodiment of the present invention;

FIG. 4 is a perspective view of a terminal module from a second perspective in accordance with a preferred embodiment of the present invention;

fig. 5 is a side view of a terminal module in a preferred embodiment of the utility model;

FIG. 6 is a perspective view of an injection molded part according to a preferred embodiment of the present invention;

wherein: the USB connector comprises a USB connector body-1, a shell body-2, a first extension part-21, a second extension part-22, an arc-shaped protrusion-23, a first fixing part-24, a second fixing part-25, a first elastic sheet-26, a second elastic sheet-27, a third elastic sheet-28, a terminal module-3, a first terminal-31, a second terminal-32, an injection molding part-33, a first horizontal part-41, a vertical part-42, a second horizontal part-43, a step-44, an arc-shaped part-51, a transition part-52, a fixing part-53, a connecting part-54, an accommodating groove-61, a transition groove-62, a fixing groove-63, a supporting block-64, a clamping part-7, a limiting part-8 and a fixing block-9.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not a whole embodiment. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 6, the USB connector 1 of the present embodiment includes a housing 2 and a terminal module 3 accommodated in the housing 2, wherein the terminal module 3 includes a first terminal 31 and a second terminal 32, and an injection molded part 33, the first terminal 31 is used for transmitting signals, the second terminal 32 is used for transmitting current, and the first terminal 31 and the second terminal 32 are insulated from each other. The first terminal 31 is embedded inside the injection-molded part 33 by injection molding, and the second terminal 32 is provided on the surface of the injection-molded part 33.

As shown in fig. 1, the housing 2 in this embodiment has a first elastic sheet 26, a second elastic sheet 27 and a third elastic sheet 28, the second elastic sheet 27 is located between the two first elastic sheets 26, and the third elastic sheet 28 is located on a side surface of the housing 2. The spring plate is used for fixedly connecting the male end and the connector 1. The second spring plate 27 and the third spring plate 28 are arranged in the opposite direction to the first spring plate 26 to achieve better connection.

As shown in fig. 1, the housing 2 in this embodiment is provided with a first fixing portion 24 and a second fixing portion 25 for fixing the connector 1, the fixing portions extending outward from the housing 2. The first fixing portion 24 and the second fixing portion 25 are used to better connect the connector 1 with other components. In this embodiment, the first fixing portion 24 extends outward from the housing 2, and the second fixing portion 25 extends downward after extending outward from the housing 2, that is, the ends of the first fixing portion 24 and the second fixing portion 25 are perpendicular to each other, so that the connector 1 can be fixed in two directions, and the fixing effect is enhanced.

As shown in fig. 3 to 6, the injection-molded part 33 includes a first horizontal portion 41, a vertical portion 42, and a second horizontal portion 43 in sequence, the horizontal height of the second horizontal portion 43 is higher than the horizontal height of the first horizontal portion 41, the vertical portion 42 is used to connect the first horizontal portion 41 and the second horizontal portion 43, the second terminal 32 includes an arc portion 51, a transition portion 52, a fixing portion 53, and a connecting portion 54 in sequence, an accommodating groove 61, a transition groove 62, and a fixing groove 63 are respectively opened on the first horizontal portion 41, the vertical portion 42, and the second horizontal portion 43 for accommodating the arc portion 51, the transition portion 52, and the fixing portion 53, the depth of the fixing groove 63 is greater than the thickness of the fixing portion 53, and the fixing block 9 for fixing the fixing portion 53 is provided in the fixing groove 63. The total thickness of the fixing block 9 and the fixing portion 53 is the same as the depth of the fixing groove 63 or greater than the depth of the fixing groove 63, so that after the terminal module is assembled with the housing 2, the fixing block 9 can only press the fixing portion 53, the horizontal heights of the arc-shaped portions 51 of the plurality of second terminals 32 are the same, and the phenomenon that the arc-shaped portions 51 are uneven is avoided.

As shown in fig. 6, a supporting block 64 is disposed in the receiving groove 61 in this embodiment for supporting one end of the arc portion 51 of the second terminal 32 close to the transition portion 52, so that the second terminal 32 forms an elastic sheet with a tendency of rebounding upwards, and the connection between the second terminal 32 and the male terminal is enhanced.

The horizontal portion in this embodiment has a plurality of steps 44, and the fixing groove 63 is formed between adjacent steps 44. The step 44 extends in a vertical direction, i.e., perpendicular to the second horizontal portion. The different terminals are matched and the depth of the fixing groove 63 is controlled by the height setting of the step 44, and then the fixing block 9 is filled in the fixing groove 63. Another function of the step 44 is to limit the lateral movement of the terminal in the horizontal direction, i.e., the width of the fixing groove 63 is the same as that of the fixing portion 53.

The material of fixed block 9 is non-metallic material, avoid with between the terminal electric connection, like macromolecular material etc.. The fixing block 9 in this embodiment is formed by melting the step 44 into the fixing groove 63. Specifically, the connector 1 in this embodiment is manufactured by raising the height of the step 44 when the injection-molded part 33 is manufactured, and then melting the over-designed portion after the second terminals 32 are assembled, so that the over-designed portion enters the fixing groove 63 and fills between the fixing block 9 and the step 44 to form the fixing block 9, thereby fixing the fixing portion 53 of the second terminals 32 and restricting the lateral movement in the horizontal direction and the vertical movement in the vertical direction.

The side edge of the injection molding piece 33 in this embodiment is provided with a clamping part 7 and a limiting part 8 for blocking the shell 2, and the limiting part 8 is used for positioning the insertion depth of the terminal module 3; the joint portion 7 extends along the horizontal direction, and the limiting portion 8 extends along the vertical direction and is perpendicular to the joint portion 7. The side of casing 2 has the joint groove that is used for holding joint portion 7, and the width in joint groove is less than the width of joint portion 7. One end of the clamping portion 7 close to the clamping groove is provided with an insertion inclined surface for convenient insertion. The clamping portion 7 is inserted into the clamping groove to connect the terminal module 3 and the housing 2.

As shown in fig. 1, the side of the housing 2 has a first extension portion 21 and a second extension portion 22, a clamping groove is formed between the first extension portion 21 and the second extension portion 22, an arc-shaped protrusion 23 is provided at a side where the first extension portion 21 and the second extension portion 22 are close to each other, and a distance between the arc-shaped protrusion 23 and the opposite extension portion is smaller than a width of the clamping portion 7. The first extension 21 and the second extension 22 belong to a part of the side of the housing 2, and the distance between the two extensions is smaller than the width of the clamping portion 7, so that the connection between the terminal module 3 and the housing 2 is realized. In this embodiment, one side of the first extending portion 21 close to the second extending portion 22 has an arc-shaped protrusion 23, and a distance between the arc-shaped protrusion 23 and the second extending portion 22 is smaller than a width of the fastening portion 7. In other embodiments, the arc-shaped protrusions 23 may be provided on the second extension 22, or the arc-shaped protrusions 23 may be provided on both extensions, and staggered for better connection.

The second terminal 32 includes an arc part 51, a transition part 52, a fixing part 53 and a connecting part 54, the injection molded part 33 is correspondingly provided with an accommodating groove 61, a transition groove 62 and a fixing groove 63 on the surface, each part of the second terminal 32 is accommodated in the corresponding groove, and although the horizontal movement of the terminal can be limited, the movement of the terminal cannot be limited in the vertical direction, so that the horizontal heights of the end parts (the arc part 51) of the second terminal 32 are different, and the problems of poor contact and turnover can occur. The fixing block 9 is arranged in the fixing groove 63 to limit the position of the fixing part 53 of the second terminal 32 and prevent the second terminal 32 from moving in the vertical direction, so that the horizontal heights of the arc-shaped parts 51 of the second terminal 32 are consistent, the contact problem caused by uneven heights of contact areas is solved, and the phenomenon of low welding capacity caused by uneven heights of welding feet is improved.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the utility model, and not to limit the scope of the utility model, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. A USB connector comprising a housing and a terminal module contained within the housing, the terminal module comprising first and second terminals and an injection molded part, it is characterized in that the injection molding piece sequentially comprises a first horizontal part, a vertical part and a second horizontal part, the second horizontal portion has a level higher than that of the first horizontal portion, and the vertical portion is used to connect the first and second horizontal portions, the second terminal comprises an arc-shaped part, a transition part, a fixing part and a connecting part in sequence, the first horizontal part, the vertical part and the second horizontal part are respectively provided with an accommodating groove, a transition groove and a fixing groove for accommodating the arc-shaped part, the transition part and the fixing part, the depth of the fixed groove is greater than the thickness of the fixed part, the width of the fixed groove is the same as the width of the fixed part, and a fixed block used for fixing the fixed part is arranged in the fixed groove.

2. The USB connector according to claim 1, wherein the horizontal portion has a plurality of steps thereon, and the fixing grooves are formed between adjacent steps.

3. The USB connector according to claim 2, wherein a total thickness of the fixing block and the fixing portion is the same as or greater than a depth of the fixing groove.

4. The USB connector according to claim 2, wherein the fixing block is made of a non-metal material.

5. The USB connector according to claim 4, wherein the fixing block is formed by fusing the step into the fixing groove.

6. The USB connector according to claim 1, wherein the injection molded part has a clip portion on a side edge thereof, and the housing has a clip groove on a side edge thereof for receiving the clip portion, the clip groove having a width smaller than that of the clip portion.

7. The USB connector according to claim 6, wherein the side of the housing has a first extension and a second extension, the first extension and the second extension form the clip groove therebetween, the side of the first extension and the second extension adjacent to each other has an arc-shaped protrusion, and the distance between the arc-shaped protrusion and the opposite extension is smaller than the width of the clip portion.

8. The USB connector according to any one of claims 1-7, wherein the housing has a first spring, a second spring and a third spring, the second spring is located between the two first springs, and the third spring is located on a side of the housing.

9. The USB connector according to claim 8, wherein the second resilient piece and the third resilient piece are disposed in a direction opposite to the direction in which the first resilient piece is disposed.

10. The USB connector according to claim 1, wherein the housing is provided with a fixing portion for fixing the connector, the fixing portion extending outward from the housing.