TWM499686U - Efficient waterproof connector - Google Patents

Description

High efficiency waterproof connector

This creation relates to the technical field of connector products, and specifically refers to a highly efficient waterproof connector with stable structure and multiple waterproof effects, which is excellent in waterproof effect.

With the rapid development of computer hardware, peripheral devices are increasing, such as mouse, keyboard, printer, scanner, camera, flash memory disk, MP3 player, mobile phone, digital camera, mobile hard disk, external optical floppy disk Machines, etc., these devices usually need to rely on a USB connector to connect to the computer. USB is the abbreviation of English Universal Serial BUS, and its Chinese abbreviation is “pass-through line”. It is an external bus standard used to regulate the connection and communication between computers and external devices. It is used in the PC field. Interface technology. Because the USB connector has the plug-and-play and hot-swap functions of the support device, the connection is flexible, and the power supply is independent, so that the use is very extensive.

The USB connector of the prior art comprises: an insulator, four signal terminals mounted in the insulator, and a metal casing covering the periphery of the insulator. The front end of the metal casing and the insulator are formed between the insertion space for the external plug. . If the user uses the electronic device with the USB connector installed in the wet weather, or accidentally knocks over the water-filled object (such as a water cup) located around the electronic device, external moisture and moisture will pass through the device. A gap in the USB connector intrudes into the interior of each of the electronic devices, causing precision electronic components in each of the electronic devices The problem of short circuit or erosion damage due to water or moisture, causing great trouble to the user.

In order to solve the above problems, in order to achieve the waterproof effect, the developer generally puts a plastic sleeve on the outer surface of the metal casing in the assembled USB connector, and applies a waterproof glue on the rear end of the plastic sleeve to solve the metal casing. When the bend is wrapped around the insulator, the gap between the two ends of the metal casing is combined, and the plastic sleeve is matched with the waterproof glue to achieve waterproof. However, after the plastic sleeve is placed on the outer surface of the metal casing, there is a gap between the plastic sleeve and the metal casing. However, water will penetrate from the gap, that is, the entire USB connector is only waterproof. The rubber layer is protected, and after long-term use, the waterproof rubber may be incapable of failure, resulting in a greater risk. Therefore, the waterproof effect of the USB connector of the above structure is still not ideal, which is not conducive to improving market competitiveness.

In view of this, the inventors propose the following technical solutions.

The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an efficient waterproof connector with stable structure and multiple waterproof effects, so that the waterproof effect is excellent.

In order to solve the above technical problem, the present invention adopts the following technical solution: the high-efficiency waterproof connector comprises: an insulator, the front end of the insulator is integrally formed with a tongue plate, the end surface of the tongue plate is formed with a plurality of terminal slots; and a plurality of terminals, the terminal The main body is fixed in the insulator, the contact portion of the terminal is received in the terminal slot of the tongue plate, and the pin portion of the terminal protrudes from the rear end of the insulator; a metal casing is wrapped on the insulator and surrounds the tongue plate Forming a pair of interfaces, a positioning leg is disposed on each of the two sides of the rear end of the metal casing; a metal piece, the middle portion of the metal piece is engaged with the metal casing, and both ends of the metal piece protrude from both sides of the metal casing; a waterproof rubber is sealed between the periphery of the rear end of the insulator and the inner wall of the metal casing; the positioning leg is coated with waterproof glue, and gold The outer periphery and the rear end of the outer casing are formed into a plastic outer casing by injection molding, and the plastic outer cover is wrapped around the periphery and the rear end of the metal outer casing, the plastic outer casing is integrally fixed with the rear end of the insulator, and the plastic outer cover is also covered with the middle portion of the metal piece. Forming a seamless seal assembly between the plastic jacket and the metal casing and the metal sheet; the two ends of the metal sheet protrude from the plastic jacket, and the positioning legs of the metal shell and the pin portions of the terminal protrude from the rear end of the plastic jacket .

After the above technical solution is adopted, the present invention has the following beneficial effects compared with the prior art: after the metal casing is coated and fixed on the insulator, the present invention is filled with a waterproof glue between the periphery of the rear end of the insulator and the inner wall of the metal casing to seal. Forming a first heavy waterproof structure; the plastic outer casing is formed on the periphery and the rear end of the metal casing by an injection molding process, and can seal a gap formed at a position where the head end of the metal plate for forming the metal outer casing meets the end Forming a second heavy waterproof structure; after the plastic outer casing is formed on the metal outer casing by the injection molding process, the plastic outer casing and the rear end surface of the insulator are integrally fixed, and the inner wall of the plastic outer casing and the outer periphery of the metal outer casing are seamlessly fixed and fixed to form a whole The azimuth seal is used as the third heavy waterproof structure; in the creation of the electronic product, the seal can be sealed with the electronic product through the sealing ring as the fourth heavy waterproof structure. Therefore, the creation has a four-fold waterproof structure, so that it has an extremely ideal waterproof effect. In addition, the creation has the advantages of stable structure and high service life, so that the market competitiveness of the creation can be greatly improved.

1‧‧‧Insulator

11‧‧‧ tongue plate

111‧‧‧Terminal slot

12‧‧‧Boss

2‧‧‧ terminals

21‧‧‧ Main body

22‧‧‧Contacts

23‧‧‧Lead Department

3‧‧‧Metal casing

30‧‧‧Interface

31‧‧‧ positioning feet

311‧‧‧Extension

312‧‧‧ hook

313‧‧‧ hole

32‧‧‧Limited opening

33‧‧‧Protruding

4‧‧‧metal pieces

41‧‧‧Bag space

42‧‧‧Installation feet

5‧‧‧ plastic jacket

51‧‧‧ring groove

52‧‧‧ sealing ring

6‧‧‧Metal reinforcing plate

61‧‧‧ body board

611‧‧‧ edging

612‧‧‧ convex hull

62‧‧‧ Fixed Department

621‧‧‧Tip

Figure 1 is a perspective view of the creation; Figure 2 is a right view of the creation; The third figure is a three-dimensional exploded view of the creation; the fourth picture is a perspective view of the terminal in the creation; the fifth picture is a structural schematic view of the insulator, the metal reinforcement plate and the terminal in the creation; the sixth picture is the creation Rear view; Fig. 7 is a top view of the creation; Fig. 8 is a sectional view taken along line AA of Fig. 7; Fig. 9 is a perspective view of the present invention after removing the plastic outer cover; Fig. 10 is a Fig. 9 A schematic view of another perspective; and Fig. 11 is a perspective view of the present invention after removing the plastic jacket and the metal sheet.

The present invention will be further described below in conjunction with specific embodiments and drawings.

Please refer to FIG. 1 to FIG. 3 , which is a high-efficiency waterproof connector, comprising: an insulator 1 , a plurality of terminals 2 integrally fixed in the insulator 1 , a metal shell 3 covering the periphery of the insulator 1 , and a snap fit. The metal sheet 4 at the lower end of the metal casing 3 and the plastic jacket 5 formed around the metal casing 3 by an injection molding process.

A tongue plate 11 is integrally formed on the front end of the insulator 1 , and a plurality of terminal slots 111 are formed on the upper end surface of the tongue plate 11 .

As shown in FIG. 4, the terminal 2 is integrally fixed to the insulator 1. The terminal 2 includes a main body portion 21, a contact portion 22 formed to extend forward along the main body portion 21, and an extension formed by extending rearward after being bent. The leg portion 23 is further formed with hooks on both sides of the main body portion 21. The terminal 2 is integrally fixed to the insulator 1 through the main body portion 21, and the contact portion 22 of the terminal 2 is housed in the terminal groove 111 of the tongue plate 11, and the lead portion 23 of the terminal 2 protrudes beyond the rear end of the insulator 1.

As shown in FIG. 5, the metal casing 3 is covered on the insulator 1 and forms a pair of interfaces 30 with the periphery of the tongue 12, and a positioning leg 31 is disposed on each of the two sides of the rear end of the metal casing 3. The foot 31 is coated with a waterproof glue. The positioning leg 31 of the metal casing 3 includes an extending portion 311 extending rearward along the rear end of the metal casing 3 and a hook portion 312 extending downward along the end of the extending portion 311. The extending portion 311 is provided with a hole 313.

The lower end of the metal casing 3 is further formed with a downwardly protruding projection 33, which can make the metal casing 3 and the plastic outer casing 5 more stable.

The upper end of the insulator 1 has an upwardly convex boss 12; a rear end of the metal casing 3 is provided with a limiting opening 32, and the limiting opening 32 is engaged with the boss 12 to stabilize the metal casing 3. The cover is fixed to the insulator 1.

Referring to FIG. 6 to FIG. 8 , the metal casing 3 is formed by bending a metal plate. Generally, after the bending is performed several times, the head end and the end of the metal plate are connected to each other so as to be stably covered. The periphery of the insulator 1. At this time, there is generally a gap between the periphery of the insulator 1 and the rear end of the metal casing 3, and the gap may cause water seepage or water inflow. For this problem, the present embodiment is at the rear end of the insulator 1 and the inner wall of the metal casing 3. The waterproof glue is filled to seal to form a first heavy waterproof structure.

After the metal casing 3 is stably covered around the periphery of the insulator 1, the head end of the metal plate of the metal casing 3 is in contact with the end only for general contact, and inevitably, a gap is formed, and the gap is Causes water seepage. In response to this problem, in the present embodiment, the plastic outer casing 5 is formed by injection molding at the periphery and the rear end of the metal casing 3, and the plastic outer casing 5 can seal the gap described above to form a second heavy waterproof structure. In addition, the plastic outer casing 5 not only covers the middle portion of the metal sheet 4, but also covers the periphery and the rear end of the metal outer casing 3, so that the plastic outer casing 5 forms a seamless sealing assembly with the metal outer casing 3 and the metal sheet 4, and the metal sheet is formed. 4 The mounting feet 42 at both ends protrude out of the plastic outer sleeve 5, outside the metal The positioning leg 31 of the case 3 and the lead portion 23 of the terminal 2 both protrude outside the rear end of the plastic outer casing 5.

After the plastic outer casing 5 is injection molded on the periphery and the rear end of the metal casing 3, the plastic outer casing 5 is integrally fixed with the rear end surface of the insulator 1, and the inner wall of the plastic outer casing 5 and the outer periphery of the metal outer casing 3 are seamlessly fixed and fixed to form The all-round sealing, and as the third heavy waterproof structure, can greatly improve the waterproof performance. In addition, the plastic outer casing 5 is also integrally fixed with the boss 12 on the insulator 1, which in turn enhances the stability of the original structure. The front end surface of the metal casing 3 is flush with the front end surface of the plastic outer casing 5, and is formed to be seamlessly connected so that water does not infiltrate from the front end of the metal casing 3.

Referring to FIGS. 9 and 10, the intermediate portion of the metal piece 4 is engaged with the metal casing 3, and both ends of the metal piece 4 protrude from both sides of the metal casing 3. Specifically, the middle portion of the metal piece 4 is recessed downward to form a clamping space 41, and the two ends of the metal piece 4 are bent downward to form a mounting leg 42 through which the metal piece 4 passes. 41 is engaged with the metal casing 3.

An annular groove 51 is formed in the periphery of the front end of the plastic outer casing 5, and a sealing ring 52 is further disposed in the annular groove 51. The width of the sealing ring 52 is smaller than the width of the annular groove 51. The assembly is assembled in an electronic product, and can be sealed with the electronic product through the sealing ring 52, which also has good waterproof effect.

As shown in FIG. 3 and FIG. 11 , a metal reinforcing plate 6 is further fixedly mounted on the insulator 1 , and the metal reinforcing plate 6 includes a main body plate 61 and a fixing portion 62 formed at a rear end of the main body plate 61. The two ends of the fixing portion 62 protrude from the two sides of the main body plate 61, and the two ends of the fixing portion 62 are further formed with a protruding piece 621 protruding forward.

The main body plate 61 is covered and fixed to the lower end of the tongue plate 11, and the fixing portion 62 is fixed to the insulator 1. Specifically, the outer edge of the main body plate 61 is bent upward to form a plurality of hem 611, and the middle portion of the main body plate 61 is formed with an upwardly convex convex 612: the lower end of the tongue plate 11 is disposed for the The mounting position of the main body plate 61 is engaged, and the main body plate 61 is engaged and fixed in the mounting position.

The metal reinforcing plate 6 can effectively enhance the firmness and stability of the tongue plate 11. Even after being inserted into the external USB plug multiple times, the tongue plate 11 will not be damaged, thereby improving the service life of the original, and also ensuring the external connection. The stability of the connection between the USB plugs. In addition, the metal reinforcing plate 6 does not increase the thickness and width of the tongue plate 11. The overall thickness and width of the metal reinforcing plate 6 and the tongue plate 11 after assembly are corresponding to the thickness and width of the USB Association specification tongue plate, that is, The structure of the tongue 11 does not affect the normal use of the external USB plug.

In summary, after the metal casing 3 is covered and fixed on the insulator 1, the waterproof casing is filled between the rear end of the insulator 1 and the inner wall of the metal casing 3 to form a first heavy waterproof structure; The plastic outer casing 5 is formed on the periphery and the rear end of the metal casing 3 by an injection molding process, and can seal a gap formed between the head end and the end of the metal plate for forming the metal casing 3 to form a second heavy waterproof. The plastic outer casing 5 is integrally fixed with the rear end surface of the insulator 1 after the plastic outer casing 5 is formed on the metal outer casing 3 by an injection molding process, and the inner wall of the plastic outer casing 5 and the outer periphery of the metal outer casing 3 are seamlessly fitted and fixed to form a whole The azimuth seal is used as the third heavy waterproof structure; in the present invention, when assembled in the electronic product, the sealing ring 52 can be sealed with the electronic product as the fourth heavy waterproof structure. Therefore, the creation has a four-fold waterproof structure, so that it has an extremely ideal waterproof effect. In addition, the creation has the advantages of stable structure and high service life, so that the market competitiveness of the creation can be greatly improved.

Of course, the above description is only for the specific embodiment of the present invention, and is not intended to limit the scope of implementation of the present invention. Any equivalent changes or modifications made according to the structure, features and principles described in the scope of the patent application of the present invention should be included in This creation is within the scope of the patent application.

1‧‧‧Insulator

11‧‧‧ tongue plate

111‧‧‧Terminal slot

12‧‧‧Boss

22‧‧‧Contacts

3‧‧‧Metal casing

31‧‧‧ positioning feet

311‧‧‧Extension

312‧‧‧ hook

313‧‧‧ hole

32‧‧‧Limited opening

33‧‧‧Protruding

4‧‧‧metal pieces

41‧‧‧Bag space

42‧‧‧Installation feet

5‧‧‧ plastic jacket

51‧‧‧ring groove

52‧‧‧ sealing ring

6‧‧‧Metal reinforcing plate

61‧‧‧ body board

611‧‧‧ edging

612‧‧‧ convex hull

62‧‧‧ Fixed Department

621‧‧‧Tip

Claims (10)

A high-efficiency waterproof connector comprises: an insulator, a front end of the insulator is integrally formed with a tongue plate, a plurality of terminal slots are formed on the end surface of the tongue plate; and a plurality of terminals are integrally fixed in the insulator, and the contact portion of the terminal is received In the terminal slot of the tongue plate, the pin portion of the terminal protrudes from the rear end of the insulator; a metal casing covers the insulator and forms a pair of interfaces with the periphery of the tongue plate, and the rear end of the metal casing The side is respectively provided with a positioning leg; a metal piece, the middle part of the metal piece is engaged with the metal outer casing, and the two ends of the metal piece protrude from the two sides of the metal outer casing; and the outer end of the insulating body is adjacent to the inner wall of the metal outer casing. The waterproofing glue is filled to seal; the positioning leg is coated with waterproof glue, and the periphery and the rear end of the metal casing are formed by injection molding to form a plastic outer casing, and the plastic outer casing is wrapped around the metal casing and the rear end, the plastic outer casing It is integrally fixed with the rear end of the insulator, and the plastic jacket also covers the middle portion of the metal sheet to form a seamless sealing assembly between the plastic jacket and the metal shell and the metal sheet; Both ends of said metal sheet extending outside the plastic jacket, the metal housing of the positioning pin and pin portions of the terminals are projected to the outside of the rear end of the plastic jacket. The high-efficiency waterproof connector of claim 1, wherein the insulator is further fixedly mounted with a metal reinforcing plate, the metal reinforcing plate comprising a main body plate and a fixing portion formed at a rear end of the main body plate, wherein the main body plate The cover is fixed to the lower end of the tongue plate, and the fixing portion is fixed to the insulator. The high-efficiency waterproof connector of claim 2, wherein the outer edge of the main body plate is bent upward to form a plurality of rims, and the middle portion of the main body plate is formed with an upward convex convex hull; the lower end of the tongue plate is disposed at a mounting position for the main body board to be engaged, the main body board being snap-fitted to the mounting position in. The high-efficiency waterproof connector of claim 2, wherein the two ends of the fixing portion protrude from the two sides of the main body plate, and the two ends of the fixing portion are further formed with a protruding piece protruding forward. The high-efficiency waterproof connector according to claim 1, wherein the intermediate portion of the metal piece is recessed downward to form a clamping space, and the two ends of the metal piece are bent downward, and the metal piece passes through the double-layer. The space is engaged with the metal casing. The high-efficiency waterproof connector of claim 1, wherein the upper end of the insulator has an upwardly convex boss; the rear end of the metal casing is provided with a limiting opening, the limiting opening and the boss Engage. The high-efficiency waterproof connector of claim 1, wherein: the positioning leg of the metal casing comprises: an extending portion extending rearward along a rear end of the metal casing; and a hook portion extending downward along the end of the extending portion, extending A hole is provided in the section. The high-efficiency waterproof connector according to any one of claims 1 to 7, wherein an annular groove is formed in a periphery of the front end of the plastic outer casing, and a sealing ring is further disposed in the annular groove. The high efficiency waterproof connector of claim 8, wherein the seal ring has a width smaller than a width of the annular groove. The high-efficiency waterproof connector of claim 8, wherein the front end surface of the metal casing is flush with the front end surface of the plastic outer casing and forms a seamless joint.