TWM464896U - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to a waterproof and dustproof electrical connector.

According to a waterproof and dustproof connector, the sealing is the primary focus. In order to seal all the gaps, common methods include attaching waterproof gaskets or adopting a secondary injection molding process, in which the effect of secondary injection molding is the most Well, the step of secondary injection molding is to first combine the parts of the connector into a semi-finished product, and then put the semi-finished product into the mold to perform injection molding, so that the rubber fills the gap between the components, that is, the waterproof and dustproof connection is obtained. Finished product, this method can achieve IP65 or higher waterproof rating, making the connector suitable for a variety of environments.

However, in the case of secondary injection molding, the coating coverage is a key factor, which will directly affect the yield of the connector and the life of the future use. Therefore, it is necessary to pay attention to the feed flow direction and semi-finished products during injection molding. Whether it is accurately placed in the molding position, the flow direction of the feed is determined at the time of mold design, and the molding position may cause errors at every installation.

Therefore, in order to improve the coating property of the secondary injection molding, it is necessary to improve the precise fit between the connector semi-finished product and the mold.

The purpose of the present invention is to provide an electrical connector, comprising: an insulative housing, which is a frame body, and has a rear frame surface, and a plurality of partitions arranged at intervals are arranged in the frame body, and the partition plate and the frame body are formed. a plurality of terminal slots, at least one snap ring is disposed on the frame, the snap ring is a positioning card point when the semi-finished product is placed in the mold; the plurality of terminals are respectively received in the terminal slot; a holding block holds the plurality of terminals and is disposed on the frame The rear frame surface of the insulating body; and a sealing body for coating the holding block and the insulating body by injection molding.

The creative electrical connector allows the semi-finished product to be accurately positioned during injection molding by means of a snap ring structure to achieve an excellent sealing effect, and the snap ring can also serve as a locking point for the electrical connector and the assembled product.

1‧‧‧Electrical connector 10‧‧‧Insulated body 100‧‧‧Upper plate 101‧‧‧ Lower plate body 102‧‧‧ Left plate body 103‧‧‧ Right plate body 104‧‧‧ Front frame 105‧ ‧ ‧ rear frame 11 ‧ ‧ partition 110 ‧ ‧ block 111 ‧ ‧ 榫 12 ‧ ‧ terminal slot 13, 142 ‧ ‧ inside chamfer 14 ‧ ‧ boss 141 ‧ ‧ card ring 15‧‧‧ Ribs 20‧‧‧ Multiple terminals 21‧‧‧ Holding part 22‧‧‧Break 23‧‧‧ Card board 24‧‧‧ Welding end 25‧‧‧Contact end 250‧‧‧ Elastic piece 30‧‧ ‧ Holding block 31‧‧‧ First plane 310‧‧‧ Slotting 311‧‧‧Perforation 312‧‧‧Ground 40‧‧‧ Seal

The first figure is an exploded view of the original electrical connector.
The second figure is a perspective view of the insulative body of the electrical connector.
The third figure is a perspective view of the holding block of the electrical connector.
The fourth figure is a schematic diagram of the combination of the semi-finished products of the electrical connector.
The fifth picture is a perspective view of the electrical connector.

To clarify the technical content, structural features, objectives, and effects of the present invention, the embodiments are described in detail below with reference to the drawings.

Referring to the first figure, the electrical connector 1 includes an insulative housing 10, a plurality of terminals 20, a holding block 30, and a sealing body 40. The holding block 30 is fixed to the plurality of terminals 20, and the holding block 30 is engaged with one side of the insulative housing 10, so that a part of the plurality of terminals 20 protrudes into the insulative housing 10 to form a semi-finished product of the electrical connector 1. The mold and the electrical connector semi-finished product are formed by injection molding, and the sealing body 40 covers the holding block 30 and a part of the insulating body 10, thereby sealing the gap between the insulating body 10, the holding block 30 and the plurality of terminals 20.

Referring to the second figure, the insulative housing 10 is a frame body covered by an upper plate body 100, a lower plate body 101, a left plate body 102 and a right plate body 103. The frame body has a substantially rectangular shape extending laterally. And forming two opposite front frame faces 104 and rear frame faces 105. The frame body is provided with a plurality of longitudinally extending and spaced-apart spacers 11 vertically connected between the upper plate body 100 and the lower plate body 101, and The front frame surface 104 extends to the rear frame surface 105 to further partition the interior of the insulative housing 10 into a plurality of terminal slots 12. The partition plate 11 protrudes from the front frame surface 104 by a substantially trapezoidal block 110. The block 110 is wider than the card frame 110. The partition 11 reduces the opening of the terminal slot 12 at the front frame surface 104 to match the terminal width of the mating connector (not shown), and the upper plate body 100 and the lower plate body 101 are formed at the connecting block 110. a chamfer 13 for introducing the butt terminal into the terminal slot 12, and a flange 14 extending outwardly from the frame edge of the front frame surface 104, and at least one of the bosses 14 is disposed The ring 141 has an opening, and the opening thereof is preferably circular. The geometric shape such as a triangle or a rectangle may be used as the opening pattern, and the inner opening is provided with another inner chamfer 142, and the at least one snap ring 14 is also It can be disposed on the frame body, the snap ring 14 is a positioning card point when the semi-finished product is placed in the mold, and the partition plate 11 protrudes backward from the rear frame surface 105 by a latch 111, and the upper and lower sides of the insulating body 10 The left and right plates 100, 101, 102, and 103 have longitudinally extending and laterally extending ribs 15, so that the sealing body 40 can be firmly coupled to the insulative housing 10 during molding.

Referring to the first figure, the plurality of terminals 20 are stamped from iron sheets, and have a horizontally extending holding portion 21 having a plurality of through openings 22 on the holding portion 21 and a pair of vertically downwards on both sides of the holding portion 21. The protruding card 21 has a soldering end 24 extending from one end of the holding portion 21 and a contact end 25 at the opposite end. In this embodiment, the contact end 25 is a pair of elastic pieces 250, and the elastic piece 250 is at the holding portion 21. The two sides of the two elastic pieces 250 are symmetrical and extend inwardly to be folded inwardly, thereby providing a large elastic clamping capability of the butt terminal.

Referring to the first and third figures, the holding block 30 is substantially a rectangular plate body having a first plane 31. The first plane 31 is provided with a slot 310 corresponding to the latch 111, and a flat through hole 311 corresponding to the terminal slot 12. And the plurality of trenches 312, the trenches 312 may extend between the slots 310 or the side edges in various shapes to provide a larger contact area of the sealing body 40, and the holding block 30 is for holding the plurality of terminals 20, and The plurality of terminals 20 are respectively received in the terminal slot 12, and the combination of the holding block 30 and the plurality of terminals 20 may be embedded or formed. It is inserted into the through hole 311 of the pre-formed holding block 30.

Referring to the fourth figure, when the electrical connector 1 is combined, first, the plurality of terminals 20 are placed in the mold for insert molding, and a holding block 30 for holding the plurality of terminals 20 is formed. The plurality of terminals 20 are perpendicular to the first plane 31 and are fixed to On the through hole 311, the holding block 30 is formed between the contact end 25 and the soldering end 24, and the breaking portion 22 of the holding portion 21 and the card board 23 are wrapped inside the holding block 30, thereby improving the stability of the terminal 20 and the holding block 30. The soldering end 24 is protruded from the first plane 31. Then, the holding block 30 is engaged with the rear frame surface 105 of the insulative housing 10 to expose the first plane 31, wherein the latch 111 is combined with the slot 310. The contact end 25 of the terminal 20 extends into the plurality of terminal slots 12 to form a semi-finished product of the electrical connector 1 in the manner described above.

Referring to the fifth figure, the semi-finished product is placed in the mold to form a sealing body 40 for covering the holding block 30 and the insulating body 10, and the positioning pin reserved in the mold by the snap ring 141 is formed during molding. The upper part (not shown) can be precisely matched during the mold clamping, and the formed sealing body 40 is fastened to the insulating body 10 by the rib 15 and the groove 312, that is, the finished electrical connector 1 is formed.

The present invention is provided with a snap ring 141 to enable the semi-finished product to be precisely matched with the mold during injection molding to achieve an excellent sealing effect, and the snap ring 141 can also serve as a locking point for the electrical connector 1 and the assembled product. Or provide a docking connector lock.

The above description is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Therefore, the equivalent structural changes that are made by using the present specification and the illustrated contents are all included in the present creation. Within the scope, it is combined with Chen Ming.

1‧‧‧Electrical connector

10‧‧‧Insulated body

100‧‧‧Upper body

102‧‧‧left plate

104‧‧‧ front frame

105‧‧‧ rear frame

11‧‧‧Baffle

110‧‧‧ card block

12‧‧‧Terminal slot

13‧‧‧Chamfering

14‧‧‧Boss

141‧‧‧ card ring

142‧‧‧Introduction angle

15‧‧‧ Ribs

20‧‧‧multiple terminals

21‧‧‧ Holding Department

22‧‧‧ breach

23‧‧‧ card board

24‧‧‧welding end

25‧‧‧Contact end

250‧‧‧Elastic film

30‧‧‧ holding block

31‧‧‧ first plane

310‧‧‧ slotting

311‧‧‧Perforation

40‧‧‧ Sealing body

Claims (6)

An electrical connector comprising:
An insulative housing is a frame body, and has a rear frame surface. The frame body is provided with a plurality of partitions arranged at intervals. The partition plate and the frame body form a plurality of terminal slots, and at least one snap ring is disposed on the frame body;
The plurality of terminals are respectively received in the terminal slots;
a holding block holding a plurality of terminals and disposed on the rear frame surface of the insulating body; and a sealing body for coating the holding block and the insulating body by injection molding. The electrical connector of claim 1, wherein the spacer protrudes from a rear frame of the insulative housing, and a slot corresponding to the cassette is formed on the holding block. The electrical connector of claim 1, wherein the outer surface of the insulative housing is provided with a plurality of longitudinally extending and laterally extending ribs, and a plurality of grooves are formed on the surface of the holding block. The electrical connector of claim 1, wherein the frame body is provided with a front frame surface opposite to the rear frame surface, and the partition plate protrudes from the front frame surface by a block. The electrical connector of claim 4, wherein the card block and the inner surface of the frame are connected to the card to form an inner chamfer, and the inner ring is provided with another inner chamfer. The electrical connector of claim 1, wherein the terminal is provided with a horizontally extending holding portion, and the plurality of through holes are formed on the holding portion, and a card is vertically protruded from both sides of the holding portion, and is fixed. One end of the portion extends from a welded end, and the opposite end is provided with a pair of elastic pieces extending perpendicularly from both sides of the holding portion.