Waterproof connector and manufacturing process easy to produce

Abstract

The present invention discloses a waterproof connector and a manufacturing process that is easy to produce. The rear end of the insertion cavity is plugged with a mounting plug, and a plurality of terminal slots are spaced apart on the mounting plug, and a plurality of terminals are inserted into the corresponding terminal slots; the mounting plug includes a base and a tongue plate; an installation space is provided on the rear end surface of the base, and a hook member is inserted into the installation space; and a molding cavity is passed through the upper and lower surfaces of the tongue plate, and a connecting block is integrally formed in the molding cavity, and the connecting block fills the gaps between the plurality of terminal slots, and the connecting block and the hook member are integrally formed and connected together, and at the same time, the connecting block covers the upper and lower surfaces of the tongue plate. By providing a mounting plug, the setting of the mounting plug enables the hook member and the plurality of terminals to be better placed and positioned in the mold, thereby making production more convenient and improving production efficiency; and the connecting block is formed on the mounting plug, and the connecting block fills the gaps between the plurality of terminal slots, and the connecting block and the hook member are integrally formed and connected together, thereby greatly improving the waterproof effect of the product.

Description

Technical Field

[0001] The present invention relates to the field of connector technology, and in particular to a waterproof connector that is easy to produce and a manufacturing process. Background Art

[0002] The connector includes an insulating body, multiple terminals, a hook part and a shielding shell. When making traditional connectors, multiple terminals are first placed in a molding mold. Multiple terminals need to be clipped into the positions specified by the mold. The positions of the terminals cannot deviate, and the large number of terminals require multiple placements, which wastes time and reduces production efficiency. After the multiple terminals are placed, the mold is closed to form the insulating body, and the multiple terminals are inlaid and molded on the insulating body. During the molding process of the insulating body, the multiple terminals are impacted by the hot glue and may be offset, resulting in defective products. After the insulating body is molded, the hook part is inserted into the insulating body. The installation seal between the hook part and the insulating body is slightly poor, and the waterproof effect is poor. Water may enter during use, causing a short circuit. Finally, the shielding shell is wrapped around the insulating body. Summary of the Invention

[0003] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a waterproof connector and manufacturing process that is easy to produce, which effectively solves the problem that the existing connectors are difficult to produce and have poor waterproofing effect.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A waterproof connector that is easy to produce, comprising an insulating body, a plurality of terminals, a hook member and a shielding shell; the insulating body has an insertion cavity; the plurality of terminals and the hook member are all arranged on the insulating body; the shielding shell is wrapped around the insulating body, wherein,

[0006] A mounting plug for fixing the hook member and the plurality of terminals is inserted at the rear end of the insertion cavity, and a plurality of terminal slots are provided on the mounting plug at intervals, and the plurality of terminals are inserted into the corresponding terminal slots; the mounting plug includes a base and a tongue plate extending forward from the front end surface of the base, the rear sections of the plurality of terminal slots pass through the front and rear end surfaces of the base, and the front sections of the plurality of terminal slots are located on the upper and lower surfaces of the tongue plate;

[0007] An installation space connected to the terminal slot is provided on the rear end surface of the base, and the hook piece is inserted into the installation space; and the upper and lower surfaces of the tongue plate are penetrated to form a molding cavity connected to the terminal slot, and a connecting block is integrally molded in the molding cavity. The connecting block fills the gaps between multiple terminal slots, and the connecting block and the hook piece are integrally molded and connected together. At the same time, the connecting block covers the upper and lower surfaces of the tongue plate, and the bases of multiple terminals are buried in the connecting block.

[0008] As a preferred solution, glue positions for enhancing the connection strength between the tongue plate and the base are provided on both sides of the molding cavity, and the two glue positions are in the shape of an "I".

[0009] As a preferred solution, a plug post is protruded forward from the front end of the tongue plate, and correspondingly, a slot is provided in the insertion cavity, and the plug post is inserted into the slot for fixation.

[0010] As a preferred solution, the hook component includes a hook body, a hook material strip integrally connected to the hook body, and a mounting block formed on the hook body; the two elastic hooks of the hook body are located on the two outer sides of the mounting plug; the upper and lower surfaces of the hook material strip are penetrated by positioning holes for easy positioning and installation in the mold; the mounting block is adapted to and fixedly installed in the above-mentioned installation space.

[0011] As a preferred solution, a guide block is formed on the front end surface of the mounting block. Correspondingly, a guide groove is opened in the mounting space, the guide block is inserted into the guide groove and fixed, and waterproof grooves are recessed on the upper and lower surfaces of the guide block.

[0012] As a preferred solution, connecting grooves are provided on both sides of the front end face of the base, which are connected to the above-mentioned installation space. The rear end face of the above-mentioned connecting block is integrally formed with a connecting column in the connecting groove, and the connecting column is integrally formed with the above-mentioned guide block and connected together.

[0013] As a preferred solution, clamping blocks are formed on the upper and lower surfaces of the connecting block, and the clamping blocks are fixed to the inner wall of the insertion cavity by snapping.

[0014] As a preferred embodiment, the multiple terminals are all flat-plate blanking terminals, which include a welding portion, a base and a contact portion that are integrally formed and connected in sequence from back to front, and the longitudinal cross-sectional area of ​​the base is smaller than the longitudinal cross-sectional area of ​​the welding portion and the longitudinal cross-sectional area of ​​the contact portion; the welding portion extends out of the rear end face of the base; the base is buried in the above-mentioned connecting block, and the front end of the base is provided with an embedding groove that cooperates and is fixed with the front section of the terminal slot; the contact portion is two PIN needles, and both PIN needles are arc-shaped.

[0015] As a preferred solution, through grooves are formed on both side surfaces of the base to reduce the effective conductive area and to dissipate heat.

[0016] A process for manufacturing a waterproof connector that is easy to produce includes the following steps:

[0017] Step 1: Insert multiple terminals into corresponding terminal slots on the mounting plug, fix them, and separate them;

[0018] Step 2: Insert the hook member into the mounting plug, and fix the mounting block on the hook member in the mounting space on the mounting plug to form a mounting module;

[0019] Step 3: Place the mounting module into the forming mold, and fix the positioning holes on the hook material strip of the hook piece to the mold to form a positioning;

[0020] Step 4: Close the mold and form a connecting block in the molding cavity of the mounting plug. The connecting block fills the gap of the terminal slot and covers the upper and lower surfaces of the tongue plate. The bases of the multiple terminals are embedded in the connecting block. At the same time, the connecting block and the hook member are integrally molded and connected together to achieve a waterproof effect.

[0021] Step 5: Open the mold, take out the product, and assemble the insulating body and shielding shell in sequence;

[0022] Step 6: Remove the hook tape and the production is completed.

[0023] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0024] By setting a mounting plug, the hook piece and multiple terminals are positioned and installed on the mounting plug, so that the multiple terminals are positioned, installed and separated, and then the mounting plug is fixed in the mold. The setting of the mounting plug makes the hook piece and multiple terminals better placed and positioned in the mold, which is more convenient for production and improves production efficiency; and a connecting block is formed on the mounting plug, the connecting block fills the gaps between multiple terminal slots, and the connecting block is integrally formed and connected with the hook piece. At the same time, the connecting block covers the upper and lower surfaces of the tongue plate, and the bases of multiple terminals are buried in the connecting block, thereby greatly improving the waterproof effect of the product.

[0025] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a perspective view of a preferred embodiment of the present invention;

[0027] Figure 2 It is an exploded view of a preferred embodiment of the present invention;

[0028] Figure 3 This is another exploded view of a preferred embodiment of the present invention;

[0029] Figure 4 This is a three-dimensional diagram of a plurality of terminals inserted into a mounting plug in a preferred embodiment of the present invention;

[0030] Figure 5 This is a three-dimensional diagram of a hook member and a plurality of terminals inserted into a mounting plug in a preferred embodiment of the present invention;

[0031] Figure 6 This is a three-dimensional diagram of a connection block formed according to a preferred embodiment of the present invention;

[0032] Figure 7 is a perspective view of a mounting plug in a preferred embodiment of the present invention;

[0033] Figure 8 is a three-dimensional diagram of a connecting block in a preferred embodiment of the present invention;

[0034] Figure 9 is a perspective view of a mounting block in a preferred embodiment of the present invention;

[0035] Figure 10 It is a three-dimensional diagram of the terminal in a preferred embodiment of the present invention.

[0036] Description of the accompanying drawings:

[0037] 10. Insulation body 101, insert cavity

[0038] 20. Terminal 21. Welding part

[0039] 22. Base 221. Embedded groove

[0040] 222, through groove 23, contact portion

[0041] 30. Hook piece 31. Hook body

[0042] 311, elastic hook 32, hook material strip

[0043] 321, positioning hole 33, mounting block

[0044] 301. Waterproof trough

[0045] 40. Shielding shell 50. Mounting plug

[0046] 51. Base 52. Tongue plate

[0047] 521, glue position 522, plug

[0048] 501, terminal slot 502, installation space

[0049] 502a, guide groove 503, molding cavity

[0050] 504, connection groove 60, connection block

[0051] 61. Block 62. Connecting column. DETAILED DESCRIPTION

[0052] Please refer to Figures 1 to 10 , which shows the specific structure of a preferred embodiment of the present invention, including an insulating body 10 , a plurality of terminals 20 , a hook member 30 and a shielding shell 40 .

[0053] The insulating body 10 has an inserting cavity 101. The plurality of terminals 20 and the hook member 30 are all disposed on the insulating body 10. The shielding shell 40 is wrapped around the insulating body 10.

[0054] The rear end of the insertion cavity 101 is fitted with a mounting plug 50 for securing the hook member 30 and the plurality of terminals 20. The mounting plug 50 is provided with a plurality of terminal slots 501 spaced apart from each other, and the plurality of terminals 20 are inserted into corresponding terminal slots 501. The mounting plug 50 comprises a base 51 and a tongue plate 52 extending forward from the front end of the base 51. The rear sections of the plurality of terminal slots 501 extend through the front and rear ends of the base 51. The rear sections of the plurality of terminal slots 501 form an outer surrounding groove, which is used to position the terminals and provide a sealant for secondary molding. The front sections of the plurality of terminal slots 501 are located on the upper and lower surfaces of the tongue plate 52.

[0055] The rear end surface of the base 51 defines an installation space 502 that communicates with the terminal slots 501. The hook member 30 is inserted into the installation space 502. The upper and lower surfaces of the tongue plate 52 are formed with a molding cavity 503 that communicates with the terminal slots 501. A connecting block 60 is integrally formed within the molding cavity 503. The connecting block 60 fills the gaps between the multiple terminal slots 501 and is integrally connected to the hook member 30. The connecting block 60 covers the upper and lower surfaces of the tongue plate 52, and the bases of the multiple terminals 20 are embedded within the connecting block 60. The hook member 30 and the multiple terminals 20 are inserted and positioned on the mounting plug 50. Compared to the conventional method of positioning the hook member 30 and the multiple terminals 20 separately in a mold before forming the insulating body 10, the hook member 30 and the multiple terminals 20 are better positioned in the mold, thereby facilitating production and improving production efficiency. At the same time, a connecting block 60 is secondary molded on the mounting plug 50 , which fills the gap of the terminal slot 501 and buries the terminal 20 , while being integrally connected with the hook member 30 , thereby forming a good waterproof structure.

[0056] Glue points 521 are provided on either side of the molding cavity 503 to strengthen the connection between the tongue plate 52 and the base 51. These two glue points 521 are in the shape of an "I" (Chinese character), meaning that the connection between the tongue plate 52 and the base 51 relative to the molding cavity 503 is enlarged, thereby enhancing the connection strength between the two. A pin 522 protrudes forward from the front end of the tongue plate 52. This pin 522 is inserted into a corresponding slot (not shown) within the insertion cavity 101 to secure it. The connecting block 60 is formed with a clamping block 61 on both its upper and lower surfaces, which is secured to the inner wall of the insertion cavity 101 by a snap fit.

[0057] The hook member 30 includes a hook body 31, a hook material strip 32 integrally formed with the hook body 31, and a mounting block 33 formed on the hook body 31. The two elastic hooks 311 of the hook body 31 are located on either side of the mounting plug 50. Positioning holes 321 are formed through the upper and lower surfaces of the hook material strip 32 to facilitate positioning and installation in the mold. The mounting block 33 is adapted to be fixedly installed in the aforementioned installation space 502. Specifically, a guide block 331 is formed on the front surface of the mounting block 33. Correspondingly, a guide groove 502a is defined within the installation space 502. The guide block 331 is inserted into the guide groove 502a and fixed therein. Waterproof grooves 301 are recessed into the upper and lower surfaces of the guide block 331. The front end face of the base 51 is provided with connecting grooves 504 extending backwards on both sides thereof, and the connecting grooves 504 are connected to the installation space 502 . The rear end face of the connecting block 60 is provided with connecting columns 62 integrally formed in the connecting grooves 504 , and the connecting columns 62 are integrally connected to the guide block 331 .

[0058] In this embodiment, the multiple terminals 20 are all flat blank terminals, which exhibit excellent positive force. These terminals comprise a soldering portion 21, a base 22, and a contact portion 23, which are integrally formed and connected from back to front. The longitudinal cross-sectional area of ​​the base 22 is smaller than that of the soldering portion 21 and the contact portion 23, facilitating their embedding within the connecting block 60. The soldering portion 21 extends beyond the rear end of the base 51; the base 22 is embedded within the connecting block 60. The front end of the base 22 defines a recessed groove 221 that mates with the front end of the terminal slot 501 and acts as a sealant when the connecting block 60 is remolded. The contact portion 23 comprises two PIN pins, each of which is curved and arched. Compared to conventional flat blank terminals, where the two PIN pins are tapered inward at the front end of the base, this provides improved insertion and extraction force and positive force. Furthermore, through-slots 222 are formed on both sides of the base 22 to reduce the effective conductive area and provide heat dissipation.

[0059] The manufacturing process of the waterproof connector which is easy to produce includes the following steps:

[0060] Step 1: Insert multiple terminals 20 into corresponding terminal slots 501 on the mounting plug 50, fix them and separate them;

[0061] Step 2: Insert the hook member 30 onto the mounting plug 50 , and secure the mounting block 33 on the hook member 30 in the mounting space 502 on the mounting plug 50 to form a mounting module.

[0062] Step 3: Place the mounting module into the forming mold, and fix the positioning holes 321 on the hook material strip 32 of the hook member 30 to the mold to form a positioning;

[0063] Step 4: Close the mold and form the connecting block 60 in the molding cavity of the mounting plug 50. The connecting block 60 completely fills the gap of the terminal slot 501 and covers the upper and lower surfaces of the tongue plate 52. The bases 22 of the multiple terminals 20 are embedded in the connecting block 60. At the same time, the connecting block 60 is integrally formed and connected to the hook member 30 to achieve a waterproof effect.

[0064] Step 5: Open the mold, take out the product, and assemble the insulating body 10 and the shielding shell 40 in sequence;

[0065] Step six: remove the hook material strip 32 and the production is completed.

[0066] The design emphasis of the present invention is:

[0067] By setting a mounting plug, the hook piece and multiple terminals are positioned and installed on the mounting plug, so that the multiple terminals are positioned, installed and separated, and then the mounting plug is fixed in the mold. The setting of the mounting plug makes the hook piece and multiple terminals better placed and positioned in the mold, which is more convenient for production and improves production efficiency; and a connecting block is formed on the mounting plug, the connecting block fills the gaps between multiple terminal slots, and the connecting block is integrally formed and connected with the hook piece. At the same time, the connecting block covers the upper and lower surfaces of the tongue plate, and the bases of multiple terminals are buried in the connecting block, thereby greatly improving the waterproof effect of the product.

[0068] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A waterproof connector that is easy to manufacture, comprising an insulating body, a plurality of terminals, a hook member, and a shielding shell; the insulating body having an insertion cavity; the plurality of terminals and the hook member are disposed on the insulating body; the shielding shell is wrapped around the insulating body, characterized in that: A mounting plug for fixing the hook member and the plurality of terminals is inserted at the rear end of the insertion cavity, and a plurality of terminal slots are provided on the mounting plug at intervals, and the plurality of terminals are inserted into the corresponding terminal slots; the mounting plug includes a base and a tongue plate extending forward from the front end surface of the base, the rear sections of the plurality of terminal slots pass through the front and rear end surfaces of the base, and the front sections of the plurality of terminal slots are located on the upper and lower surfaces of the tongue plate; The rear end surface of the base is provided with an installation space connected to the terminal slots, and the hook member is inserted into the installation space; the upper and lower surfaces of the tongue plate are penetrated to form a molding cavity connected to the terminal slots, and a connecting block is integrally formed in the molding cavity. The connecting block fills the gaps between the multiple terminal slots, and the connecting block and the hook member are integrally connected together. At the same time, the connecting block covers the upper and lower surfaces of the tongue plate, and the bases of the multiple terminals are embedded in the connecting block; The front end of the tongue plate is provided with a plug extending forward, and correspondingly, a slot is provided in the insertion cavity, and the plug is inserted into the slot and fixed; the hook part includes a hook body, a hook material strip integrally connected to the hook body, and a mounting block formed on the hook body; the two elastic hooks of the hook body are located on the two outer sides of the mounting plug; the upper and lower surfaces of the hook material strip are penetrated by positioning holes for facilitating positioning and installation in the mold; the mounting block is adapted to the above-mentioned installation space and fixedly installed.

2. The waterproof connector according to claim 1, which is easy to produce, is characterized in that: Glue positions for enhancing the connection strength between the tongue plate and the base are provided on both sides of the molding cavity, and the two glue positions are in the shape of an "I".

3. The waterproof connector according to claim 1, characterized in that: A guide block is formed on the front end surface of the installation block. Correspondingly, a guide groove is opened in the installation space. The guide block is inserted into the guide groove and fixed. Waterproof grooves are recessed on the upper and lower surfaces of the guide block.

4. The waterproof connector according to claim 3, which is easy to produce, is characterized in that: The front end face of the base is penetrated backwards by connecting grooves on both sides, which are connected to the installation space. The rear end face of the connecting block is integrally formed with a connecting column in the connecting groove, and the connecting column is integrally connected with the guide block.

5. The waterproof connector that is easy to produce according to claim 1, characterized in that: The upper and lower surfaces of the connecting block are both formed with clamping blocks, and the clamping blocks are fixed to the inner wall of the insertion cavity by buckling.

6. The waterproof connector that is easy to produce according to claim 1, characterized in that: The multiple terminals are all flat-plate blanking terminals, which include a welding portion, a base and a contact portion that are integrally formed and connected in sequence from back to front, and the longitudinal cross-sectional area of ​​the base is smaller than the longitudinal cross-sectional area of ​​the welding portion and the longitudinal cross-sectional area of ​​the contact portion; the welding portion extends out of the rear end surface of the base; the base is buried in the above-mentioned connecting block, and the front end of the base is provided with an embedding groove that cooperates and is fixed with the front section of the terminal slot; the contact portion is two PIN needles, and both PIN needles are arc-shaped.

7. The waterproof connector that is easy to produce according to claim 6, characterized in that: Through grooves are formed on both side surfaces of the base to reduce the effective conductive area and to dissipate heat.

8. A process for manufacturing a waterproof connector that is easy to produce according to any one of claims 1 to 7, characterized in that: The following steps are included: Step 1: Insert multiple terminals into corresponding terminal slots on the mounting plug, fix them, and separate them; Step 2: Insert the hook member into the mounting plug, and fix the mounting block on the hook member in the mounting space on the mounting plug to form a mounting module; Step 3: Place the mounting module into the forming mold, and fix the positioning holes on the hook material strip of the hook piece to the mold to form a positioning; Step 4: Close the mold and form a connecting block in the molding cavity of the mounting plug. The connecting block fills the gap of the terminal slot and covers the upper and lower surfaces of the tongue plate. The bases of the multiple terminals are embedded in the connecting block. At the same time, the connecting block and the hook member are integrally molded and connected together to achieve a waterproof effect. Step 5: Open the mold, take out the product, and assemble the insulating body and shielding shell in sequence; Step 6: Remove the hook tape and the production is completed.

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