Glue injection waterproof electronic connector and glue injection method thereof

Abstract

The invention relates to the technical field of electronic connectors, in particular to a glue injection waterproof electronic connector which comprises a shell, an integrated tongue piece and an insulating seat, a glue injection space is formed between the integrated tongue piece and the insulating seat, and a glue injection needle hole is formed in the end, away from the integrated tongue piece, of the insulating seat. The end, close to the integrated tongue piece, of the insulating base is provided with a second glue injection receding groove. The first glue injection receding groove, the glue injection needle hole, the second glue injection receding groove and the glue injection space are sequentially communicated. During actual assembly, after the electronic connector is assembled, a gluing needle penetrates through the first glue injection receding groove and the glue injection needle hole and extends into the second glue injection receding groove, pressure is applied to the glue injection space to inject waterproof glue, the waterproof glue completely covers the glue injection space under pressure driving, filling is more compact, the pin-injected waterproof glue is formed, the production efficiency is improved, and the production cost is reduced. Because the pin-injected waterproof glue is arranged in the electronic connector, the whole pin-injected waterproof glue is not easy to be damaged by external force when the product is subjected to external force, and the waterproof stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electronic connectors, and in particular to a glue-injected waterproof electronic connector and a glue-injection method thereof. Background Art

[0002] An electronic connector is a device that transmits electronic signals and can provide a separable interface to connect two sub-electronic systems. It is a component that completes the electrical connection between circuits or electronic machines, and plays the role of connecting or disconnecting current or signals. This connection may be temporary, convenient for plugging and unplugging at any time, or it may be a permanent node between electrical equipment or wires.

[0003] Existing electronic connectors are mostly composed of a shell, an integrated tongue piece and an insulating seat all sleeved in the shell. The structure is simple. In order to prevent water from seeping in between the shell and the integrated tongue piece during use and causing water immersion in the internal circuit, it is necessary to add a waterproof glue seal between the shell and the integrated tongue piece. The traditional waterproof glue is to apply liquid glue in an open manner during assembly so that the waterproof glue flows in naturally. This method is inefficient and is prone to the problem of insufficient local sealing and bonding due to incomplete penetration of the waterproof glue. The sealed product is prone to bonding cracking when subjected to external force. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, an object of the present invention is to provide a method for injecting glue into a waterproof electronic connector.

[0005] Another object of the present invention is to provide a glue-injected waterproof electronic connector.

[0006] The object of the present invention is achieved by the following technical solution: A method for injecting glue into a waterproof electronic connector, comprising the following steps:

[0007] Take a glue injection waterproof electronic connector and a glue injection device with a glue injection needle, wherein the glue injection waterproof electronic connector includes a shell, and an integrated tongue piece and an insulating seat both accommodated in the shell, a glue injection space is provided between the integrated tongue piece and the insulating seat, a glue injection pinhole is provided at one end of the insulating seat away from the integrated tongue piece, a first glue injection clearance groove is provided at one end of the shell close to the glue injection pinhole, a second glue injection clearance groove is provided at one end of the insulating seat close to the integrated tongue piece, and the first glue injection clearance groove, the glue injection pinhole, the second glue injection clearance groove and the glue injection space are connected in sequence;

[0008] The glue needle of the glue injection device is passed through the first glue injection groove and the glue injection needle hole and extended into the second glue injection groove, and waterproof glue is injected into the glue injection space under pressure until the glue injection space is filled, forming a needle-injected waterproof glue that is integrally formed in the glue injection space and the second glue injection groove and fits the inner wall of the shell.

[0009] Another object of the present invention is achieved through the following technical scheme: a glue-injected waterproof electronic connector, comprising a shell, and an integrated tongue and an insulating seat both contained in the shell, a glue injection space being provided between the integrated tongue and the insulating seat, a glue injection pinhole being provided at one end of the insulating seat away from the integrated tongue, a first glue injection clearance groove being provided at one end of the shell close to the glue injection pinhole, a second glue injection clearance groove being provided at one end of the insulating seat close to the integrated tongue, the first glue injection clearance groove, the glue injection pinhole, the second glue injection clearance groove and the glue injection space being connected in sequence, and the shell being filled with needle-injected waterproof glue which is integrally formed in the glue injection space and the second glue injection clearance groove and is in contact with the inner wall of the shell.

[0010] Preferably, the insulating seat includes a first insulating connecting seat and a second insulating connecting seat that is snap-fitted with the first insulating connecting seat, and one side of the first insulating connecting seat close to the integrated tongue piece and one side of the second insulating connecting seat close to the integrated tongue piece are both against the needle-injected waterproof glue, and the glue injection needle hole and the second glue injection clearance groove are both opened at the top of the first insulating connecting seat.

[0011] Preferably, an exhaust groove is provided on one side of the bottom of the second insulating connecting seat close to the integrated tongue piece, and the glue injection space is connected to the outside of the shell through the exhaust groove.

[0012] Preferably, a first protrusion protrudes from one side of the first insulating connection seat close to the integrated tongue piece, and a second protrusion protrudes from one side of the second insulating connection seat close to the integrated tongue piece. The first protrusion and the second protrusion are combined to form a reinforcement block with a ring-shaped outer circumference, and the outer circumference of the reinforcement block is fixedly connected to the inner wall of the shell.

[0013] Preferably, both sides of the second insulating connection seat are provided with a clamping block, the first insulating connection seat is provided with a receiving groove, and both side walls of the receiving groove are provided with a clamping groove that is engaged with the clamping block.

[0014] Preferably, the integrated tongue piece includes a tongue sleeve and an injection-molded tongue piece accommodated in the shell, the injection-molded tongue piece includes a plug-in portion, a fixed portion and an extension portion connected in sequence, the tongue sleeve is fixedly sleeved on the plug-in portion and the fixed portion, and the outer periphery of the extension portion is fixedly connected to the inner wall of the shell.

[0015] Preferably, an annular filling space is provided between the tongue cover and the extension portion, and the shell is filled with UV waterproof glue which is integrally formed in the annular filling space and adheres to the inner wall of the shell.

[0016] Preferably, the shell includes an outer shell, and a middle shell fixedly connected to the outer shell, the insulating seat and the extension portion are interference fit with the middle shell, the needle-injected waterproof glue is in contact with the inner wall of the middle shell, the tongue sleeve is fixedly connected to the middle shell, and the first glue injection clearance groove is opened at one end of the outer shell close to the glue injection needle hole.

[0017] Preferably, the outer shell has a first welding hole for laser welding and fixing with the middle shell, and the middle shell has a second welding hole for laser welding and fixing with the tongue sleeve; rivets protrude from the bottom of both sides of the outer shell, and the rivets are riveted to the bottom of the insulating seat.

[0018] The beneficial effects of the present invention are as follows: the glue injection method of the glue injection waterproof electronic connector of the present invention is to insert the glue injection needle of the glue injection device through the first glue injection clearance groove and the glue injection needle hole and extend into the second glue injection clearance groove, and apply pressure to the glue injection space to inject waterproof glue until the glue injection space is filled, forming a needle-injected waterproof glue that is integrally formed in the glue injection space and the second glue injection clearance groove and fits the inner wall of the shell. During the glue injection, after the electronic connector is assembled, the waterproof glue fully covers the glue injection space under pressure driving and fills it more densely, effectively improving the waterproof effect and waterproof stability.

[0019] The glue-injected waterproof electronic connector of the present invention adopts a shell, and an integrated tongue piece and an insulating seat both contained in the shell, a glue-injected space is provided between the integrated tongue piece and the insulating seat, a glue-injected pinhole is provided at one end of the insulating seat away from the integrated tongue piece, a second glue-injected clearance groove is provided at one end of the insulating seat close to the integrated tongue piece, the first glue-injected clearance groove, the glue-injected pinhole, the second glue-injected clearance groove and the glue-injected space are connected in sequence, and the shell is filled with needle-injected waterproof glue that is integrally formed in the glue-injected space and the second glue-injected clearance groove and fits the inner wall of the shell. During actual assembly, after the electronic connector is assembled, the first glue-injected clearance groove and the glue-injected pinhole are penetrated by means of a glue-injecting needle and extended into the second glue-injected clearance groove, and pressure is applied to the glue-injected space to inject waterproof glue, and the waterproof glue fully covers the glue-injected space under pressure driving and fills more densely to form needle-injected waterproof glue, thereby improving production efficiency. Since the needle-injected waterproof glue is inside the electronic connector, when the product is subjected to external force, the entire needle-injected waterproof glue is not easily damaged by external force, thereby improving waterproof stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of another viewing angle of the present invention;

[0022] Figure 3 It is an exploded schematic diagram of the present invention;

[0023] Figure 4 It is a schematic diagram of an exploded view of another perspective of the present invention.

[0024] The accompanying drawings are marked as follows: 1. injection needle hole; 2. injection space; 3. shell; 31. outer shell; 32. middle shell; 4. integrated tongue; 41. tongue cover; 42. injection tongue; 421. plug-in part; 422. fixing part; 423. extension part; 5. insulating seat; 51. first insulating connection seat; 52. second insulating connection seat; 6. first injection make way groove; 7. second injection make way groove; 8. needle-injected waterproof glue; 9. exhaust groove; 10. first protrusion; 11. second protrusion; 12. card block; 13. accommodating groove; 14. card slot; 15. UV waterproof glue; 16. first welding hole; 17. second welding hole; 18. rivet. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0026] like Figure 1-4 As shown, a method for injecting glue into a waterproof electronic connector includes the following steps:

[0027] Take a glue injection waterproof electronic connector and a glue injection device with a glue injection needle, wherein the glue injection waterproof electronic connector includes a shell 3, and an integrated tongue piece 4 and an insulating seat 5 both accommodated in the shell 3, a glue injection space 2 is provided between the integrated tongue piece 4 and the insulating seat 5, a glue injection pinhole 1 is provided at one end of the insulating seat 5 away from the integrated tongue piece 4, a first glue injection clearance groove 6 is provided at one end of the shell 3 close to the glue injection pinhole 1, a second glue injection clearance groove 7 is provided at one end of the insulating seat 5 close to the integrated tongue piece 4, and the first glue injection clearance groove 6, the glue injection pinhole 1, the second glue injection clearance groove 7 and the glue injection space 2 are sequentially connected;

[0028] The glue injection needle of the glue injection device is passed through the first glue injection clearance groove 6 and the glue injection needle hole 1 and extended into the second glue injection clearance groove 7, and the waterproof glue is injected into the glue injection space 2 under pressure until the glue injection space 2 is filled, forming a needle-injected waterproof glue 8 that is integrally formed in the glue injection space 2 and the second glue injection clearance groove 7 and adheres to the inner wall of the housing 3. During the glue injection, after the electronic connector is assembled, the waterproof glue fully covers the glue injection space 2 under pressure driving and fills it more densely, effectively improving the waterproof effect and waterproof stability.

[0029] A glue-injection waterproof electronic connector comprises a shell 3, and an integrated tongue piece 4 and an insulating seat 5 both accommodated in the shell 3, a glue-injection space 2 is provided between the integrated tongue piece 4 and the insulating seat 5, a glue-injection pinhole 1 is provided at one end of the insulating seat 5 away from the integrated tongue piece 4, a first glue-injection clearance groove 6 is provided at one end of the shell 3 close to the glue-injection pinhole 1, a second glue-injection clearance groove 7 is provided at one end of the insulating seat 5 close to the integrated tongue piece 4, the first glue-injection clearance groove 6, the glue-injection pinhole 1, the second glue-injection clearance groove 7 and the glue-injection space 2 are connected in sequence, and the shell 3 is filled with needle-injection waterproof glue 8 which is integrally formed in the glue-injection space 2 and the second glue-injection clearance groove 7 and is in contact with the inner wall of the shell 3.

[0030] The glue injection waterproof electronic connector adopts a shell 3, and an integrated tongue piece 4 and an insulating seat 5 both accommodated in the shell 3, a glue injection space 2 is provided between the integrated tongue piece 4 and the insulating seat 5, a glue injection pinhole 1 is provided at one end of the insulating seat 5 away from the integrated tongue piece 4, a second glue injection clearance groove 7 is provided at one end of the insulating seat 5 close to the integrated tongue piece 4, the first glue injection clearance groove 6, the glue injection pinhole 1, the second glue injection clearance groove 7 and the glue injection space 2 are connected in sequence, and the shell 3 is filled with needle-injected waterproof glue 8 which is integrally formed in the glue injection space 2 and the second glue injection clearance groove 7 and adheres to the inner wall of the shell 3. During actual assembly, after the electronic connector is assembled, a glue needle is used to penetrate the first glue injection clearance groove 6 and the glue injection needle hole 1 and extend into the second glue injection clearance groove 7, and pressure is applied to the glue injection space 2 to inject waterproof glue. Driven by pressure, the waterproof glue fully covers the glue injection space 2 and fills it more densely to form needle-injected waterproof glue 8, thereby improving production efficiency. Because the needle-injected waterproof glue 8 is inside the electronic connector, when the product is subjected to external force, the entire needle-injected waterproof glue 8 is not easily damaged by external force, thereby improving waterproof stability.

[0031] Furthermore, the insulating seat 5 includes a first insulating connecting seat 51 and a second insulating connecting seat 52 that is snap-fitted with the first insulating connecting seat 51. One side of the first insulating connecting seat 51 close to the integrated tongue piece 4 and one side of the second insulating connecting seat 52 close to the integrated tongue piece 4 are both against the needle-injected waterproof glue 8, and the glue injection needle hole 1 and the second glue injection clearance groove 7 are both opened at the top of the first insulating connecting seat 51.

[0032] Furthermore, an exhaust groove 9 is provided at one side of the bottom of the second insulating connecting seat 52 close to the integrated tongue piece 4, and the glue injection space 2 is connected to the outside of the shell 3 through the exhaust groove 9, so as to avoid that when the glue needle penetrates the glue injection needle hole 1 and extends into the second glue injection clearance groove 7 to inject glue, the air in the glue injection space 2 is not removed in time, thereby affecting the filling density of the waterproof glue. At the same time, it is helpful to confirm whether the glue injection amount is saturated, thereby improving efficiency.

[0033] Furthermore, a first protrusion 10 protrudes from one side of the first insulating connection seat 51 close to the integrated tongue piece 4, and a second protrusion 11 protrudes from one side of the second insulating connection seat 52 close to the integrated tongue piece 4. The first protrusion 10 and the second protrusion 11 are combined to form a reinforcing block with a ring-shaped outer periphery. The outer periphery of the reinforcing block is fixedly connected to the inner wall of the shell 3, thereby improving the connection stability between the insulating seat 5 and the shell 3, and at the same time helping to avoid overflow of the waterproof glue during gluing.

[0034] Furthermore, both sides of the second insulating connection seat 52 are provided with a block 12, and the first insulating connection seat 51 is provided with a receiving groove 13. Both side walls of the receiving groove 13 are provided with a slot 14 that is engaged with the block 12, so that the second insulating connection seat 52 can be assembled to the first insulating connection seat 51 to improve assembly efficiency.

[0035] Furthermore, the integrated tongue piece 4 includes a tongue sleeve 41 and an injection-molded tongue piece 42 accommodated in the shell 3, and the injection-molded tongue piece 42 includes a plug-in portion 421, a fixed portion 422 and an extension portion 423 connected in sequence, and the tongue sleeve 41 is fixedly sleeved on the plug-in portion 421 and the fixed portion 422, and the outer periphery of the extension portion 423 is fixedly connected to the inner wall of the shell 3.

[0036] Furthermore, there is an annular filling space between the tongue cover 41 and the extension portion 423, and the shell 3 is filled with UV waterproof glue 15 which is integrally formed in the annular filling space and adheres to the inner wall of the shell 3, which is beneficial to further improve the waterproof effect of the electronic connector.

[0037] Further, the housing 3 includes an outer shell 31 and a middle shell 32 fixedly connected to the outer shell 31, the insulating seat 5 and the extension portion 423 are both interference fit with the middle shell 32, the needle-injected waterproof glue 8 is in contact with the inner wall of the middle shell 32, the tongue sleeve 41 is fixedly connected to the middle shell 32, and the first injection-gluing recess 6 is provided at one end of the outer shell 31 close to the injection-gluing needle hole 1. Further, the outer periphery of the reinforcement block is interference fit with the inner wall of the housing 3, and the UV waterproof glue 15 is in contact with the inner wall of the middle shell 32.

[0038] Furthermore, the outer shell 31 has a first welding hole 16 for laser welding and fixing with the middle shell 32, and the middle shell 32 has a second welding hole 17 for laser welding and fixing with the tongue sleeve 41. The middle shell 32 is laser welded and fixed with the tongue sleeve 41 through the second welding hole 17, and the outer shell 31 is laser welded and fixed with the middle shell 32 through the first welding hole 16, which improves the connection stability between the outer shell 31 and the middle shell 32, and between the middle shell 32 and the tongue sleeve 41, and is conducive to improving assembly efficiency.

[0039] Furthermore, rivet buckles 18 protrude from the bottom of both sides of the shell 31, and the rivet buckles 18 are riveted to the bottom of the insulating seat 5. The shell 31 is fixed to the insulating seat 5 by the rivet buckles 18, thereby improving the connection stability between the shell 31 and the insulating seat 5.

[0040] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A method for injecting glue into a waterproof electronic connector, characterized in that: The steps include: Take a glue injection waterproof electronic connector and a glue injection device with a glue injection needle, wherein the glue injection waterproof electronic connector includes a shell, and an integrated tongue piece and an insulating seat both accommodated in the shell, a glue injection space is provided between the integrated tongue piece and the insulating seat, a glue injection pinhole is provided at one end of the insulating seat away from the integrated tongue piece, a first glue injection clearance groove is provided at one end of the shell close to the glue injection pinhole, a second glue injection clearance groove is provided at one end of the insulating seat close to the integrated tongue piece, and the first glue injection clearance groove, the glue injection pinhole, the second glue injection clearance groove and the glue injection space are connected in sequence; The glue needle of the glue injection device is passed through the first glue injection groove and the glue injection needle hole and extended into the second glue injection groove, and waterproof glue is injected into the glue injection space under pressure until the glue injection space is filled, forming a needle-injected waterproof glue that is integrally formed in the glue injection space and the second glue injection groove and fits the inner wall of the shell.

2. A glue-injected waterproof electronic connector, comprising a housing, and an integrated tongue piece and an insulating seat both accommodated in the housing, characterized in that: A glue injection space is provided between the integrated tongue piece and the insulating seat, a glue injection pinhole is provided at one end of the insulating seat away from the integrated tongue piece, a first glue injection clearance groove is provided at one end of the shell close to the glue injection pinhole, a second glue injection clearance groove is provided at one end of the insulating seat close to the integrated tongue piece, the first glue injection clearance groove, the glue injection pinhole, the second glue injection clearance groove and the glue injection space are connected in sequence, and the shell is filled with needle-injected waterproof glue which is integrally formed in the glue injection space and the second glue injection clearance groove and adheres to the inner wall of the shell.

3. The glue-injected waterproof electronic connector according to claim 2, characterized in that: The insulating seat includes a first insulating connection seat and a second insulating connection seat that is snap-fitted with the first insulating connection seat. One side of the first insulating connection seat close to the integrated tongue piece and one side of the second insulating connection seat close to the integrated tongue piece are both against the needle-injected waterproof glue, and the glue injection needle hole and the second glue injection clearance groove are both opened at the top of the first insulating connection seat.

4. The glue-injected waterproof electronic connector according to claim 3, characterized in that: An exhaust groove is provided on one side of the bottom of the second insulating connecting seat close to the integrated tongue piece, and the glue injection space is connected to the outside of the shell through the exhaust groove.

5. The glue-injected waterproof electronic connector according to claim 3, characterized in that: A first protrusion protrudes from one side of the first insulating connection seat close to the integrated tongue piece, and a second protrusion protrudes from one side of the second insulating connection seat close to the integrated tongue piece. The first protrusion and the second protrusion are combined to form a reinforcing block with a ring-shaped outer circumference, and the outer circumference of the reinforcing block is fixedly connected to the inner wall of the shell.

6. The glue-injected waterproof electronic connector according to claim 3, characterized in that: Blocks are protruding from both sides of the second insulating connection seat, a receiving groove is provided in the first insulating connection seat, and both side walls of the receiving groove are provided with slots for engaging with the block.

7. The glue-injected waterproof electronic connector according to claim 2, characterized in that: The integrated tongue piece includes a tongue sleeve and an injection-molded tongue piece accommodated in the shell, the injection-molded tongue piece includes an inserting portion, a fixing portion and an extension portion connected in sequence, the tongue sleeve is fixedly sleeved on the inserting portion and the fixing portion, and the outer periphery of the extension portion is fixedly connected to the inner wall of the shell.

8. The glue-injected waterproof electronic connector according to claim 7, characterized in that: An annular filling space is provided between the tongue cover and the extension portion, and the shell is filled with UV waterproof glue which is integrally formed in the annular filling space and adheres to the inner wall of the shell.

9. The glue-injected waterproof electronic connector according to claim 7, characterized in that: The shell includes an outer shell and a middle shell fixedly connected to the outer shell. The insulating seat and the extension part are both interference fit with the middle shell. The needle-injected waterproof glue is in contact with the inner wall of the middle shell. The tongue sleeve is fixedly connected to the middle shell. The first glue injection clearance groove is opened at one end of the outer shell close to the glue injection needle hole.

10. The glue-injected waterproof electronic connector according to claim 9, characterized in that: The shell has a first welding hole for laser welding and fixing with the middle shell, and the middle shell has a second welding hole for laser welding and fixing with the tongue sleeve; rivets protrude from the bottom of both sides of the shell, and the rivets are riveted to the bottom of the insulating seat.

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