TW201803223A - Signal connector using waterproof glue body to fix connection terminal and circuit board does not only form a waterproof mechanism through waterproof glue but also effectively fasten relative position between the connection terminal and the circuit board - Google Patents

Abstract

This invention is a signal connector using waterproof glue body to fix connection terminal and circuit board. The signal connector includes an insulating seat, a metal case, and a waterproof glue body. The insulating seat is internally secured with two rows of connection terminals. The front ends of the connection terminals are respectively exposed on the top surface and the bottom surface near the front end of the insulating seat while the rear ends extend from the rear end surface of the insulating seat and clamp a circuit board. The metal case is nested on the insulating seat, and a groove is formed between the inner wall surface near the rear end opening and the rear end face of the insulating seat. The waterproof glue body is formed by curing liquid waterproof glue after pouring into the groove, thereby covering a portion near the rear end the connection terminals and the circuit board. In this way, since the waterproof glue body can fix the connection terminals and the circuit board, the welding work can be omitted.

Description

Signal connector for fixing connection terminal and circuit board by waterproof gel

The invention relates to a signal connector for fixing a connection terminal and a circuit board by using waterproof colloid, especially an insulating base can be positioned in a metal case, so that a groove is formed between the rear end opening of the metal case and the rear end face of the insulating base. In addition, two rows of connection terminals are fixed in the insulating seat body. The rear ends of the connection terminals can be extended from the rear end face of the insulating seat body to hold a circuit board. The industry can inject waterproof glue into the groove. So that the waterproof glue after the waterproof glue is cured can fix the connection terminals and the circuit board, according to this, the industry does not need to solder the connection terminals to the circuit board separately.

Press, the signal connector (Connector) generally refers to all the connection components and their accessories used in electronic signals and power supplies, is a bridge to all signals, its quality will affect the reliability of current and signal transmission, and also related to electronics System operation is closely related. With the increasing development of electronic technology, signal connectors have become an indispensable equipment for all types of electronic devices in data transmission and connection with other peripheral devices. Among the transmission specifications of many connectors, Universal Serial Bus (hereinafter referred to as USB) is the most popular.

At present, the USB specification is about to fully enter USB 3.1. USB 3.1 not only improves the voltage and current transmission volume, but also improves the encoding loss, which can greatly increase the transmission speed to 10GB per second. In addition, compared with the previous USB1.0 ~ USB 3.0 specifications, USB 3.1 The Type-C connector structure has a major change, that is, the configuration is symmetrical up and down. Users will not need to identify the front and back sides of the USB3.1 plug, but can insert it into the corresponding USB 3.1 socket. It is more intuitive to use. However, in order to achieve a pluggable function on both sides, USB 3.1 Type-C connectors must be equipped with two sets of identical connection terminals. In the current industry, "thin, light and short" is the mainstream design of electronic devices. USB This specification of Type-C connector 3.1 will create new difficulties and challenges to the production and assembly process.

In order to make the structure of the connector sufficiently lightweight, the two sets of connection terminals in the USB 3.1 Type-C connector must be designed to be very close to save space, but after reducing the distance between the connection terminals, the industry must overcome the In addition to the "transmission performance" problem of adjacent terminals that may interfere with each other when transmitting signals, the "assembly yield" problem of these connection terminals soldered to the circuit board also arises because once the distance between the connection terminals is reduced, the precision of welding is reduced. Degree requirements will increase accordingly. In addition, as the "waterproof" function is gradually valued by consumers in the market, the industry must also design a "waterproof mechanism" on the connector, and how to balance the "assembly yield" and "waterproof mechanism" to ensure the quality of the product, It can be said that the USB 3.1 Type-C connector is a major test of the design.

Therefore, how to design a new assembly structure based on the special structural requirements of the USB 3.1 Type-C connector, so that the industry can ensure production efficiency while considering the requirements of "assembly yield" and "waterproof mechanism". And the overall product quality has become an important issue to be solved urgently by the present invention.

In view of the fact that under the mainstream of thin, light and short designs, it is difficult for the industry to use the Type-C connector of USB 3.1 while taking into account various performance requirements such as "assembly yield" and "waterproof mechanism". R & D experience, after many experiments, tests and practical After doing this, a signal connector for fixing the connection terminal and the circuit board by using waterproof gel was finally designed in the present invention, and it is expected that the design bottleneck in the conventional technology can be effectively solved.

An object of the present invention is to provide a signal connector for fixing a connection terminal and a circuit board by using a waterproof gel, comprising an insulating base, a metal shell, and a waterproof gel. The insulating base is respectively provided with a plurality of branches. A connecting terminal and a plurality of second connecting terminals. The front ends of the first connecting terminals are exposed from the top surface of the insulating base body adjacent to the front end, and the rear ends thereof extend from the rear end surface of the insulating base body; The front ends of the two connection terminals are exposed from the bottom surface of the insulation base body adjacent to the front end, and the rear ends thereof also extend from the rear end surface of the insulation base body, and a predetermined distance is maintained from the rear ends of the first connection terminals. The pitch is matched with the thickness of the circuit board of an electronic device, so that the parts near the rear end of the connection terminals can hold the circuit board and are electrically connected to a plurality of electrode contacts on the circuit board; The front end of the metal casing is provided with a front opening, and the rear end thereof is provided with a rear opening. The front opening is communicated with the rear opening to form an accommodating space. The configuration of the accommodating space and the The edge seat body is matched so that after the insulating seat body is positioned in the accommodating space, a groove can be formed between the inner wall surface adjacent to the rear opening in the metal housing and the rear end face of the insulating seat body; the waterproof glue system It is formed by pouring a liquid waterproof glue into the groove and curing it. The waterproof glue can seal the gap between the insulating base and the metal shell, and can simultaneously cover the front end of the circuit board and the connection terminals. Near the back end. According to this, through the waterproof colloid, not only a waterproof mechanism can be formed, but also the relative positions between the connection terminals and the circuit board can be effectively fixed, so that the industry does not need to solder the connection terminals.

In order that the review committee can have a further understanding and understanding of the structural features, technical effects, and purposes of the present invention, the embodiments are described in detail with the drawings, as follows:

[Learning]

no

〔this invention〕

1‧‧‧Signal connector

11‧‧‧Insulated base

111‧‧‧first connection terminal

111a‧‧‧First clamping section

112‧‧‧Second connection terminal

12‧‧‧ metal case

120‧‧‧accommodation space

121‧‧‧ front opening

122‧‧‧ rear opening

123‧‧‧Groove

13‧‧‧Waterproof colloid

14‧‧‧ outer shell

141‧‧‧Assembly Department

142‧‧‧Keyhole

21‧‧‧ Tongue plate body

210‧‧‧ metal plate

211‧‧‧First terminal slot

212‧‧‧First card slot

213‧‧‧Second card slot

22‧‧‧First Terminal Block

221‧‧‧The first card insertion section

23‧‧‧Second Terminal Block

231‧‧‧Second card insertion section

P‧‧‧Circuit Board

P1‧‧‧electrode contact

Figure 1 is a schematic diagram of the signal connector of the present invention; Figure 2 is a schematic diagram of the signal connector of the present invention before the glue is filled; Figure 3 is a schematic diagram of the signal connector of the present invention after the glue is filled; and Figure 4 It is a schematic diagram of the tongue plate body of the signal connector of the present invention.

During the research process, the inventor thought that the Type-C connector of USB 3.1 can be used to have the characteristics of two sets of connection terminals, and was designed as a "clamp type" structure (that is, the circuit board is clamped by two rows of terminals) to effectively reduce Overall volume; and in terms of "waterproof mechanism" and "assembly yield", the inventor integrated the two solutions in the same structure, please refer to Figure 1, which is the invention "fixing connection terminals with waterproof gel" The first preferred embodiment of the "signal connector with a circuit board", the signal connector 1 includes an insulating base 11, a metal shell 12 and a waterproof gel 13, and the insulating base 11 is respectively fixed (such as : Insertion or injection molding) There are a plurality of first connection terminals 111 and a plurality of second connection terminals 112. The connection terminals 111 and 112 are respectively arranged in two rows, and the first connection terminals 111 are at the front end. The top surface of the insulating base 11 adjacent to the front end is exposed, and the rear end is extended from the rear end surface of the insulating base 11; the front end of the second connection terminals 112 is the bottom surface of the insulating base 11 adjacent to the front end. Exposed, its back end also After the end surface 11 extending from the insulating base member.

A predetermined distance is maintained between the rear ends of the first connection terminals 111 and the rear ends of the second connection terminals 112, and the predetermined distance is matched with the thickness of a circuit board P (which may be a printed circuit board or a flexible circuit board). , So that the circuit board P can be clamped by the connection terminals 111 and 112 near the rear end. In this embodiment, the predetermined distance is slightly smaller than the thickness of the circuit board P. The connection terminals 111 and 112 can be deformed slightly to press the circuit board P tightly, so that the connection terminals 111 and 112 can be electrically connected to the plurality of electrode contacts P1 on the circuit board P, respectively.

Please refer to FIGS. 1 to 3, a front opening 121 is provided at the front end of the metal casing 12, and a rear opening 122 is provided at the rear end of the metal casing 12. The front opening 121 is in communication with the rear opening 122. An accommodating space 120 can be formed, and the configuration of the accommodating space 120 is matched with the insulating base 11 so as to pass through the rear opening 122 at the front end of the insulating base 11 and be positioned in the accommodating space 120. Then, a groove 123 can be formed between the inner wall surface of the metal casing 12 adjacent to the rear opening 122 and the rear end surface of the insulating base 11.

The waterproof colloid 13 is formed by pouring a liquid waterproof gel into the groove 123 and then curing. Since the positions of the connection terminals 111 and 112 near the rear end correspond to the groove 123, the waterproof gel 13 The gap between the insulating base 11 and the metal shell 12 is sealed, and at the same time, it can cover the front end of the circuit board P and the parts near the rear ends of the connection terminals 111 and 112.

In this way, through the waterproof colloid 13, not only can outside water and gas be prevented from passing through the accommodation space 120 to erode the circuit board P to form a good waterproof mechanism, but also because the waterproof colloid 13 can cover the circuit board P at the same time. The front end and the parts of the connection terminals 111 and 112 adjacent to the rear end make the front end of the circuit board P and the parts of the connection terminals 111 and 112 near the rear end firmly combined into one body. The rear ends of the connection terminals 111 and 112 are soldered to the electrode contact P1 on the circuit board P to effectively simplify the production process of the industry.

In this embodiment, the waterproof colloid 13 has both a "waterproof mechanism", "fixes the insulating base 11 into the metal casing 12", and "fixes the relative positions of the connection terminals 111, 112 and the circuit board P" The function can not only simplify the production process of the operator, but also make the signal connector 1 more concise. However, in order to further improve the positioning strength, the operator can also Corresponding card insertion mechanisms are provided on the inner wall surface and the outer side surface of the insulating base body 11 to prevent the insulating base body 11 from being loosened from the metal casing due to the insertion and removal force of the user.

In addition, please refer to FIG. 1 to FIG. 3 again. The portions of the first connection terminals 111 adjacent to the rear end (and not covered by the waterproof gel 13) are bent in the direction of the second connection terminals 112, respectively. A first clamping portion 111a is formed; a portion of each of the second connection terminals 112 adjacent to the rear end is also bent toward each of the first connection terminals 111 to form a second clamping portion, and the first clamping portions are respectively formed. The portion 111a and the second clamping portion are respectively electrically connected to the electrode contact P1 on the circuit board P (since the configuration of the first connection terminal 111 and the second connection terminal 112 is symmetrical to each other, the ~ 3, that is, the second clamping portion is not shown). In addition, in this embodiment, the first clamping portion 111a and the second clamping portion are not covered by the waterproof colloid 13, so that the operator can confirm whether the positions of the connection terminals 111 and 112 are correct, of course. According to their own considerations, the industry can still weld the first clamping portion 111a and the second clamping portion to the electrode contacts P1.

In addition, since the present invention is applied to a USB 3.1 Type-C connector, the detailed structure of the insulating base 11 is further described below: Please refer to FIG. 1 to FIG. 4, the insulating base 11 also includes A tongue plate body 21, a first terminal base 22, and a second terminal base 23. A metal plate 210 is fixed (through injection molding) inside the tongue plate body 21, and a part of the peripheral edge of the metal plate 210 can be exposed to the On the periphery of the tongue plate body 21, a plurality of first terminal grooves 211 and a plurality of second terminal grooves are respectively formed on the top surface and the bottom surface of the tongue plate body 21 (because the top structure of the tongue plate 21 and the bottom structure are similar) Symmetric, so the second terminal slots are not marked).

The first terminal base 22 is made of plastic and integrally formed therein, and the first connection terminals 111 are fixedly installed, and the front ends of the first connection terminals 111 can be inserted into the first terminal slots 211; The two terminal bases 23 are made of integrated plastic, and the second connection ends are fixedly arranged therein. Sub 112, the front ends of the second connection terminals 112 can be inserted into the second terminal slots, so that the first terminal base 22, the second terminal base 23, and the tongue plate body 21 can be assembled into the insulating base body. 11.

In addition, please refer to FIG. 1 and FIG. 4. The two corresponding sides of the first terminal base 22 adjacent to the rear end are respectively provided with a first latching portion 221; A second card insertion portion 231 is respectively provided; a first card insertion slot 212 is formed on the top of the tongue plate body 21 corresponding to each of the first card insertion portions 221, and a bottom of the tongue plate body 21 corresponds to each A position of the second insertion slot 231 is respectively formed with a second insertion slot 213, and when the front ends of the connection terminals 111 and 112 are respectively inserted into the first terminal slot 211 and the second terminal slot The latching portions 221 and 231 can be latched into the corresponding latching slots 212 and 213, respectively, so that the tongue plate body 21, the first terminal base 22, and the second terminal base 23 are firmly combined into the insulating base body. 11.

The signal connector 1 further includes an outer shell 14 whose configuration is matched with the metal shell 12 so as to be able to be sleeved on the metal shell 12 and can be spot-welded by laser, and The metal shell 12 is integrated into one body; two corresponding side surfaces of the outer casing 14 are respectively provided with an assembly portion 141 (for example, a piece formed by tearing the outer wall surface of the outer casing 14), and the assembly portion 141 is provided with There is a lock hole 142 for being locked on the casing of an electronic device. However, in other embodiments of the present invention, the outer casing 14 can be omitted according to actual needs, and the assembly portions (such as the metal casing 12) can be respectively protruded on two corresponding sides of the metal casing 12. The outer wall surface extends one piece toward the two sides respectively), and the assembling part is provided with the lock hole so as to be able to be locked on the casing of the electronic device.

The above are only a few preferred embodiments of the present invention. However, the technical features of the present invention are not limited to this. Those skilled in the relevant art can easily think about it after considering the technical content of the present invention. Equivalent changes should not depart from the protection scope of the present invention.

1‧‧‧Signal connector

111‧‧‧first connection terminal

111a‧‧‧First clamping section

12‧‧‧ metal case

13‧‧‧Waterproof colloid

14‧‧‧ outer shell

141‧‧‧Assembly Department

142‧‧‧Keyhole

P‧‧‧Circuit Board

P1‧‧‧electrode contact

Claims (7)

A signal connector for fixing a connection terminal and a circuit board by using a waterproof gel includes an insulating base body on which a plurality of first connection terminals and a plurality of second connection terminals are respectively fixed, and the front ends of the first connection terminals The front end of the insulating base body is exposed from the top surface adjacent to the front end, and the rear end thereof is extended from the rear end surface of the insulating base body; the front ends of the second connection terminals are exposed from the bottom surface of the insulating base body adjacent to the front end, and thereafter The end is also extended from the rear end surface of the insulating base, and a predetermined distance is maintained from the rear end of the first connection terminals. The predetermined distance is matched with the thickness of a circuit board in an electronic device, so that A portion of the connection terminal adjacent to the rear end can hold the circuit board and be electrically connected to a plurality of electrode contacts on the circuit board respectively; a metal housing having a front opening at the front end and a rear opening at the rear end An opening, the front opening is in communication with the rear opening so as to form an accommodating space, and the configuration of the accommodating space is matched with the insulating base to position the insulating base to the accommodating space Then, a groove can be formed between the inner wall surface adjacent to the rear opening in the metal casing and the rear end face of the insulating base body; and a waterproof gel is formed by pouring a liquid waterproof glue into the groove and then solidifying. The waterproof gel can seal the gap between the insulating base and the metal shell, and can simultaneously cover the front end of the circuit board and the parts near the rear end of the connection terminals. The signal connector according to claim 1, wherein a portion of each of the first connection terminals adjacent to the rear end is bent toward each of the second connection terminals to form a first clamping portion; each of the second clamping portions; The portions near the rear end of the connection terminal are also bent toward each of the first connection terminals to form a second clamping portion respectively, and the clamping portions are electrically connected to the electrode contacts on the circuit board. The signal connector according to claim 2, wherein the clamping portions are not covered by the waterproof gel. The signal connector according to claim 3, wherein the insulating base further comprises: a tongue plate body, a metal plate is embedded in the tongue plate body, and a plurality of channels are formed on the top surface and the bottom surface of the tongue plate body, respectively. A first terminal slot and a plurality of second terminal slots; a first terminal base, which is formed by integrally forming a plastic, and the first connection terminals are fixedly arranged, and the front ends of the first connection terminals can be inserted into the first connection terminals; Waiting in the first terminal slot; and a second terminal base, which is made of plastic integrally formed therein, the second connection terminals are fixedly arranged, and the front ends of the second connection terminals can be inserted into the second terminals. In the slot. The signal connector according to claim 4, wherein two corresponding sides of the first terminal block adjacent to the rear end are respectively provided with a first card insertion part; two corresponding sides of the second terminal block adjacent to the rear end are respectively provided There is a second card insertion portion; a first card insertion slot is formed on the top of the tongue plate body corresponding to each of the first card insertion portions, and a bottom of the tongue plate body corresponds to the position of each second card insertion portion. A second insertion slot is formed respectively. In the case where the front ends of the connection terminals are respectively inserted into the corresponding terminal slots, the insertion portions can be inserted into the corresponding insertion slots, so that the tongue The board body, the first terminal base and the second terminal base are combined to form the insulating base body. The signal connector according to claim 1, 2, 3, 4 or 5, wherein the signal connector further comprises: an outer shell, and the configuration of the outer shell is matched with the metal shell so as to be sleeved. It is provided on the metal shell and can be integrated with the metal shell through laser spot welding; two corresponding sides of the outer shell are respectively provided with an assembly part, and a keyhole is provided on the assembly part to enable It is locked on a casing of the electronic device. The signal connector according to claim 1, 2, 3, 4 or 5, wherein an assembly portion is respectively provided on two corresponding sides of the metal casing, and a lock hole is provided on the assembly portion so as to be locked. It is fixed on a casing of the electronic device.