Waterproof electric connector structure

Abstract

The utility model relates to the technical field of electric connector mounting structures, and particularly discloses a waterproof electric connector structure, which comprises a protective shell arranged on a male terminal; the plurality of sealing rings are arranged on the outer wall surface of the protective shell in parallel along the axial direction of the electric connector; the protective sleeve is arranged on the female terminal; the waterproof grooves correspond to the sealing rings and are formed in the inner wall surface of the protective sleeve; the male terminal is inserted into the female terminal, the protective shell can be arranged in the protective sleeve, and a sealing ring is correspondingly arranged in each waterproof groove; the buckle assembly is used for detachably connecting the male terminal and the female terminal; the elastic supporting assembly drives the inner wall surfaces of the plurality of waterproof grooves to synchronously extrude the plurality of sealing rings along the axial direction of the electric connector; according to the utility model, multiple seals can be formed between the protective shell and the protective sleeve, so that the waterproof performance is effectively improved; and the disassembly and assembly efficiency of the electric connector can be improved, and later maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connector installation structures, in particular to a waterproof electric connector structure. Background Art

[0002] Electrical connectors are indispensable components in electronic equipment. They connect two active devices and transmit current or signals. They are widely used in electronics, communications, aviation, aerospace and other industries. In order to protect electrical connectors, it is usually necessary to add waterproof structures to the electrical connectors in actual installation.

[0003] Reference Figure 1 As shown, in the existing waterproof installation of electrical connectors, a waterproof gasket is usually arranged between the male terminal of the electrical connector and the female terminal of the electrical connector, and the inner wall surface of the terminal and the outer wall surface of the female terminal are connected by threads, and then the male terminal and the female terminal are driven to rotate by twisting the end cover to squeeze the waterproof gasket until the waterproof gasket is tightened, thereby achieving a waterproof seal for the electrical connector.

[0004] However, in the waterproof structure of the above-mentioned electrical connector, on the one hand, only one waterproof gasket is used to seal between the male terminal and the female terminal, and the waterproof performance is low and the waterproof effect is not ideal; on the other hand, the waterproof gasket is tightened by threaded transmission, and the end cover needs to be twisted multiple times, which makes the disassembly and assembly process of the entire electrical connector complicated, which is not conducive to later maintenance. Utility Model Content

[0005] In view of the above problems, the utility model provides a waterproof electrical connector structure, the purpose of which is to improve the waterproof performance of the electrical connector.

[0006] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0007] A waterproof electric connector structure is provided, comprising: a protective shell, arranged on a male terminal; a plurality of sealing rings, arranged in parallel on the outer wall surface of the protective shell along the axial direction of the electric connector; a protective sleeve, arranged on a female terminal; a plurality of waterproof grooves, corresponding to each sealing ring, opened on the inner wall surface of the protective sleeve; the male terminal is plugged into the female terminal, the protective shell can be placed in the protective sleeve, and each waterproof groove corresponds to a sealing ring; a snap assembly, used for detachably connecting the male terminal and the female terminal; an elastic support assembly, along the axial direction of the electric connector, providing an extrusion force F for the male terminal and the female terminal, thereby driving the inner wall surfaces of the plurality of waterproof grooves to synchronously extrude the plurality of sealing rings.

[0008] Furthermore, a plurality of installation grooves are provided on the protective shell, and the sealing ring is bonded in the installation grooves by glue.

[0009] Furthermore, the waterproof groove and the installation groove are both trapezoidal grooves.

[0010] Furthermore, the elastic support assembly includes: a first mounting seat and a second mounting seat, which are respectively fixed on the protective shell and the protective cover; a pin, which passes through the first mounting seat and the second mounting seat parallel to the axial direction of the electrical connector; wherein one end of the pin is detachably connected to the first mounting seat through a snap assembly; a limit block, which is arranged at the end of the pin away from the first mounting seat; an elastic component, which is in a compressed state, one end abuts against the second mounting seat, and the other end abuts against the limit block, for providing an extrusion force F for the male terminal and the female terminal.

[0011] Furthermore, the buckle assembly includes: a plastic hook, which is arranged on the first mounting seat; and a slot, which is opened on the latch and allows the plastic hook to enter and engage.

[0012] Furthermore, the snap assembly also includes: a T-shaped slot, which is opened in the first mounting seat and the second mounting seat along the axial direction of the electrical connector; a T-shaped slider, which is arranged on the pin and movably placed in the T-shaped slot to guide the plastic hook to align with the slot.

[0013] Furthermore, the elastic component is a spring.

[0014] Furthermore, a waterproof gasket is provided between the protective cover and the first mounting seat.

[0015] Furthermore, the sealing ring is an O-ring.

[0016] The beneficial effects of the utility model are as follows: in the utility model, an elastic support component is provided, which can drive the inner wall surfaces of several waterproof grooves to synchronously extrude several sealing rings, thereby forming multiple seals between the protective shell and the protective cover, which can effectively improve the waterproof performance of the electrical connector; the male terminal and the female terminal are detachably connected through the snap-on component, and during the installation of the electrical connector, there is no need for the staff to twist the end cover, which can effectively improve the disassembly and assembly efficiency of the electrical connector and facilitate later maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The invention relates to a mounting structure of an electric connector in the prior art.

[0018] Figure 2 An installation structure of an electrical connector provided in an embodiment of the present application.

[0019] Figure 3 for Figure 2 A magnified schematic diagram of point B in the middle.

[0020] Figure 4 for Figure 2 Enlarged schematic diagram at point A in the middle.

[0021] Among them, 11, male terminal; 12, female terminal; 13, end cover; 2, waterproof gasket; 3, protective shell; 31, sealing ring; 32, mounting groove; 4, protective cover; 41, waterproof groove; 51, first mounting seat; 52, second mounting seat; 53, latch; 54, limit block; 55, elastic component; 56, T-shaped slider; 6, plastic hook. DETAILED DESCRIPTION

[0022] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Reference Figure 2 As shown, the embodiment of the present application discloses a waterproof electrical connector structure, including: a protective shell 3, which is arranged on the male terminal 11; a plurality of sealing rings 31, which are arranged parallel to the outer wall surface of the protective shell 3 along the axial direction of the electrical connector; a protective sleeve 4, which is arranged on the female terminal 12; a plurality of waterproof grooves 41, corresponding to each sealing ring 31, are opened on the inner wall surface of the protective sleeve 4; the male terminal 11 is plugged into the female terminal 12, so that the protective shell 3 can be placed in the protective sleeve 4, and each waterproof groove 41 corresponds to a sealing ring 31; a snap assembly, which is used to detachably connect the male terminal 11 and the female terminal 12; an elastic support assembly, which provides an extrusion force F for the male terminal 11 and the female terminal 12 along the axial direction of the electrical connector, thereby driving the inner wall surfaces of the plurality of waterproof grooves 41 to synchronously extrude the plurality of sealing rings 31.

[0024] In the utility model, an elastic support component is provided, which can drive the inner wall surfaces of several waterproof grooves 41 to synchronously extrude several sealing rings 31 along the axial direction of the electrical connector, thereby forming multiple seals between the protective shell 3 and the protective cover 4, which can effectively improve the waterproof performance of the electrical connector; a snap-on component is also provided, through which the male terminal 11 and the female terminal 12 are detachably connected. During the installation of the electrical connector, there is no need for the staff to twist the end cover 13, which can effectively improve the disassembly and assembly efficiency of the electrical connector and facilitate later maintenance.

[0025] Preferably, a plurality of mounting grooves 32 are provided on the protective shell 3, and the sealing ring 31 is bonded to the mounting groove 32 by glue; the sealing ring 31 is bonded and fixed to the mounting groove 32 by glue, which can prevent the sealing ring 31 from falling off, and ensure that a plurality of sealing rings 31 can be smoothly delivered into each waterproof groove 41 along the axial direction of the electrical connector, thereby ensuring the waterproof performance.

[0026] Reference Figure 3As shown, the waterproof groove 41 and the mounting groove 32 are both trapezoidal grooves, that is, the cross-sectional projection view of the waterproof groove 41 and the mounting groove 32 is a trapezoid; by designing the mounting groove 32 and the waterproof groove 41 as trapezoidal grooves, the two side wall surfaces of the two trapezoidal grooves can be inclined to the axial direction of the electrical connector to squeeze the sealing ring 31, thereby reducing the shear force received by the sealing ring 31 and improving the service life of the sealing ring 31.

[0027] Preferably, the elastic support assembly includes: a first mounting seat 51 and a second mounting seat 52, which are respectively fixed on the protective shell 3 and the protective cover 4; a pin 53, which passes through the first mounting seat 51 and the second mounting seat 52 parallel to the axial direction of the electrical connector; wherein one end of the pin 53 is detachably connected to the first mounting seat 51 through a snap-on assembly; a limit block 54, which is arranged at the end of the pin 53 away from the first mounting seat 51; an elastic component 55, which is in a compressed state, with one end abutting the second mounting seat 52 and the other end abutting the limit block 54, for providing an extrusion force F for the male terminal 11 and the female terminal 12.

[0028] Specifically, the buckle assembly includes: a plastic hook 6, which is arranged on the first mounting seat 51; and a slot, which is opened on the latch 53, for the plastic hook 6 to enter and be engaged.

[0029] During the installation process, the staff manually applies force to insert the male terminal 11 into the female terminal 12. Synchronously, the protective shell 3 also enters the protective sleeve 4, and along the axial direction of the electrical connector, each sealing ring 31 also enters a corresponding waterproof groove 41; the staff then holds the pin 53, passes one end of the pin 53 through the second mounting seat 52 and the first mounting seat 51, and pushes the limit block 54 to squeeze the elastic component 55 until the slot and the plastic hook 6 are pushed to engage; the staff releases the pin 53, and the elastic component 55 is in a compressed state. The elastic component 55 has a tendency to restore deformation. The elastic component 55 pushes the pin 53 to tighten the plastic hook 6, providing the first mounting seat 51 and the second mounting seat 52 with a movement tendency to approach each other, thereby achieving the purpose of providing an extrusion force F for the male terminal 11 and the female terminal 12, thereby squeezing the sealing ring 31 and achieving the purpose of waterproofing the electrical connector.

[0030] It is worth mentioning that the number of the latches 53 on the first mounting seat 51 and the second mounting seat 52 can be flexibly changed to improve the connection stability between the first mounting seat 51 and the second mounting seat 52 .

[0031] It is worth mentioning that the first mounting seat 51, the protective shell 3 and the plastic shell of the male terminal 11 can be integrally formed by injection molding; the second mounting seat 52, the protective cover 4 and the plastic shell of the female terminal 12 can also be integrally formed by injection molding.

[0032] Specifically, the snap assembly also includes: a T-shaped slot, which is opened in the first mounting seat 51 and the second mounting seat 52 along the axial direction of the electrical connector; a T-shaped slider 56, which is arranged on the pin 53 and is movably placed in the T-shaped slot to guide the plastic hook 6 to align with the slot.

[0033] By providing a T-shaped slot and a T-shaped slider 56 to guide the latch 53 to slide in the first mounting seat 51 and the second mounting seat 52, the latch 53 can be prevented from rotating, ensuring that the plastic hook 6 is aligned with the slot, thereby ensuring the installation efficiency of the electrical connector.

[0034] Specifically, the elastic component 55 is a spring; it is worth mentioning that the elastic component 55 can also be made of rubber.

[0035] Reference Figure 4 As shown, a waterproof gasket 2 is provided between the protective cover 4 and the first mounting seat 51 to further improve the waterproof performance.

[0036] Preferably, the sealing ring 31 is an O-ring.

[0037] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the equivalent technology of the claims of the present invention, the present invention is also intended to include these modifications and variations.

Claims

1. A waterproof electrical connector structure, characterized in that: include: A protective shell (3) is arranged on the male terminal (11); A plurality of sealing rings (31) are arranged parallel to the outer wall surface of the protective shell (3) along the axial direction of the electrical connector; A protective sleeve (4) is arranged on the female terminal (12); A plurality of waterproof grooves (41) are provided on the inner wall surface of the protective sleeve (4), corresponding to each sealing ring (31); the male terminal (11) is plugged into the female terminal (12), so that the protective shell (3) can be placed in the protective sleeve (4), and each waterproof groove (41) corresponds to a sealing ring (31); A snap assembly, used for detachably connecting the male terminal (11) and the female terminal (12); The elastic support component provides an extrusion force F for the male terminal (11) and the female terminal (12) along the axial direction of the electrical connector, thereby driving the inner wall surfaces of the plurality of waterproof grooves (41) to synchronously extrude the plurality of sealing rings (31).

2. The waterproof electrical connector structure according to claim 1, characterized in that: A plurality of installation grooves (32) are provided on the protective shell (3), and the sealing ring (31) is bonded in the installation groove (32) by glue.

3. The waterproof electrical connector structure according to claim 2, characterized in that: The waterproof groove (41) and the installation groove (32) are both trapezoidal grooves.

4. The waterproof electrical connector structure according to claim 1, characterized in that: The elastic support assembly includes: The first mounting seat (51) and the second mounting seat (52) are fixedly arranged on the protective shell (3) and the protective cover (4), respectively; A plug pin (53) passes through the first mounting seat (51) and the second mounting seat (52) in parallel with the axial direction of the electrical connector; wherein one end of the plug pin (53) is detachably connected to the first mounting seat (51) via a buckle assembly; A limit block (54) is arranged at an end of the latch (53) away from the first mounting seat (51); The elastic component (55) is in a compressed state, with one end abutting against the second mounting seat (52) and the other end abutting against the limit block (54), and is used to provide a squeezing force F for the male terminal (11) and the female terminal (12).

5. The waterproof electrical connector structure according to claim 4, characterized in that: The snap-on assembly includes: A plastic hook (6) disposed on the first mounting seat (51); The card slot is formed on the latch (53) for the plastic card hook (6) to enter and engage.

6. The waterproof electrical connector structure according to claim 5, characterized in that: The buckle assembly also includes: A T-shaped groove is provided in the first mounting seat (51) and the second mounting seat (52) along the axial direction of the electrical connector; A T-shaped slide block (56) is arranged on the latch pin (53) and is movably placed in the T-shaped slot to guide the plastic hook (6) to align with the slot.

7. The waterproof electrical connector structure according to claim 4, characterized in that: The elastic component (55) is selected from springs.

8. The waterproof electrical connector structure according to claim 4, characterized in that: A waterproof gasket (2) is provided between the protective cover (4) and the first mounting seat (51).

9. The waterproof electrical connector structure according to claim 1, characterized in that: The sealing ring (31) is selected from O-rings.

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