TWM590788U - Waterproof adapter having fast alignment and assembling functions - Google Patents

Abstract

A waterproof electrical adaptor with quick alignment assembly function, which includes a first joint unit and a second joint unit, and is used to connect different electrical transmission lines respectively, which utilizes the connecting rod of the first joint unit The unit and the fitting groove of the second joint unit are provided with a single anti-error structure in a specific assembly direction. The joint part and the positioning part provide a basis for identifying the assembly direction, and the connecting rod part and the fitting groove are correctly aligned It can be combined only while ensuring that each first terminal of the first connector unit is properly electrically connected to the second terminal corresponding to the second connector unit, and has a quick alignment assembly function. The connecting rod portion of the first joint unit can form a waterproof joint, and cooperate with the screw cap of the first joint unit to lock the first joint unit and the second joint unit, so that it has good waterproof performance.

Description

Waterproof electrical adapter with quick alignment assembly function

The present invention relates to an electrical adaptor, in particular to a waterproof electrical adaptor with rapid alignment assembly function.

At present, electrical transmission lines are usually used as current or signal transmission media between existing electronic devices or electronic equipment. When the transmission path of the current or signal is greater than the length of the electrical transmission line, the electrical transmission line must be provided between the two electrical transmission lines by an electrical adapter In series, at the same time, the electrical adapter must make the core wires of the two electrical transmission lines connect correctly.

The composition structure of the existing electrical adapter includes a first connector unit and a second connector unit. The first connector unit is connected to an electrical transmission line, the second connector unit is connected to another electrical transmission line, and then the first connector The unit and the second joint unit are relatively plugged and combined, so that the plurality of first terminals in the first joint unit and the plurality of second terminals in the second joint unit are connected in one-to-one correspondence.

However, although existing electrical adapters can provide a medium for electrical transmission between two electrical transmission lines, however, when the plurality of first terminals and the plurality of second terminals in the electrical adapter are used to transmit DC current or signals, Each first terminal and second terminal must be connected to a specific positive, negative or specific signal terminal, so when the first connector unit and the second connector unit are butted and combined, the plural first terminals in the first connector unit must be correctly connected to The corresponding second terminals in the second connector unit are connected one-to-one. Once the connection is wrong, it will cause a serious problem of short circuit or signal transmission error. However, the combination structure of the first connector unit and the second connector unit in the existing electrical adapter lacks a good error prevention mechanism. Because the electrical adapter is not easy to align correctly, it is prone to damage caused by wrong wiring. Therefore, during the process of assembling the first joint unit and the second joint unit, the assembler must carefully inspect the direction and position of the relative assembly of the first joint unit and the second joint unit, resulting in the problem of time and labor for assembly.

The purpose of the present invention is to provide a waterproof electrical adaptor with a quick alignment assembly function, which solves the problems that the existing electrical adaptor is not easy to align correctly and is prone to damage caused by wrong connection of the circuit.

In order to achieve the aforesaid objective, the waterproof electrical adaptor with quick alignment function proposed by the present invention includes: A first joint unit, including: A first body of insulating material includes a first base portion and a connecting rod portion formed at an axial end of the first base portion. The outer peripheral surface of the connecting rod portion includes a connecting surface and side surfaces of the connecting surface A pair of positions with different shapes; A plurality of first terminals, spaced apart in the first body and extending to the end of the connecting rod; and A screw ring, which is rotatably and axially moveable and is arranged outside the first body, and the inner peripheral wall of the screw ring forms an internal thread portion; and A second joint unit, which can be detachably assembled with the first joint unit, and includes: A second body of insulating material includes a second base portion and a fitting portion formed at an axial end of the second base portion, the outer peripheral surface of the fitting portion forms an external thread portion, and can be screwed with the screw ring In combination, a fitting groove with an opening facing outward is formed in the fitting portion, and the groove wall of the fitting groove includes a set of joint surfaces and a joint portion located on the side of the set of joint surfaces and having different shapes. The shape of the surface matches the connecting surface, the shape of the joint portion matches the shape of the alignment portion, and the groove wall of the fitting groove can form a waterproof joint with the connecting rod portion; and A plurality of second terminals, arranged at intervals in the sleeve portion and extending into the sleeve groove, the arrangement positions of the plurality of second terminals form a one-to-one correspondence with the arrangement positions of the plurality of first terminals, and The second terminal can be docked with the first terminal.

Through the composition of the aforementioned waterproof electrical adapter, when the first connector unit is connected to the first electrical transmission line, the second connector unit is connected to the second electrical transmission line, and the first electrical transmission line is connected to the second electrical transmission line Among them, at least have the following advantages: 1. Fast alignment assembly function: The new type can use the single-assembly direction anti-error structure between the connecting rod part of the first joint unit and the fitting groove of the fitting part of the second joint unit to join the part Provide the aligning reference for the assembler to identify the assembly direction with the aligning part. Only when the connecting rod part and the fitting groove are correctly aligned, can they be inserted into the fitting groove, and at the same time ensure that each first joint unit One terminal is correctly electrically connected to the second terminal corresponding to the second joint unit, respectively, so that it has a quick alignment assembly function. 2. It has a good waterproof function: the new waterproof electrical adapter uses the shape of the fitting groove of the second joint unit to match the shape of the connecting rod of the first joint unit to form a waterproof joint, and matches the first The screw cap of the joint unit locks the first joint unit and the second joint unit so that it has good waterproof performance.

The new waterproof electrical adaptor can further use the fitting portion of the second joint unit to be sleeved on the connecting rod portion of the first joint unit, and the outer peripheral surface of the connecting rod portion is provided with an annular sealing flange and a waterproof ring , Used to tightly engage with the sleeve groove wall of the sleeve portion, so that it has a better waterproof bonding effect.

As shown in FIG. 1 and FIG. 2, it is a schematic diagram of a preferred embodiment of the waterproof electrical adaptor with fast alignment assembly function for connecting the first electrical transmission line 30 and the second electrical transmission line 40. The first electrical transmission line 30 and the second electrical transmission line 40 may be wires for current transmission or signal transmission lines for signal transmission. The first electrical transmission line 30 and the second electrical transmission line 40 each include a plurality of The core wire, the first electrical transmission line 30 and the second electrical transmission line 40 are conventional articles, and their specific structures will not be repeated here. As can be seen from the drawings, the waterproof electrical adapter includes a first joint unit 10 and a second joint unit 20. The first connector unit 10 is used to connect the first electrical transmission line 30, the second connector unit 20 is used to connect the second electrical transmission line 40, the first electrical transmission line 30 and the second electrical transmission line 40 pass through the waterproof electrical property The adapter carries current or signal transmission.

As shown in FIGS. 1 and 2, the first joint unit 10 includes a first body 11, a plurality of first terminals 12, and a screw ring 13. The first body 11 is a component formed of insulating material, and the first A body 11 includes a first base 111 and a connecting rod 112A. The connecting rod 112A forms an axial end of the first base 111 and protrudes outward in the axial direction. The connecting rod 112A is away from the first base One end of 111 is an end. The outer peripheral surface of the connecting rod portion 112A includes a connecting surface 113A and a pair of positioning portions 114A located on the side of the connecting surface 113A. The positioning portion is different from the shape of the connecting surface 113A.

As shown in FIGS. 1 and 2, the outer peripheral surface of the connecting rod portion 112A can also form at least one annular sealing flange 115. In this preferred embodiment, it is disclosed that the outer peripheral surface of the connecting rod portion 112A forms a plurality of intervals Aligned annular tight flange 115. The first body 11 can also form an annular groove 116 on the outer peripheral surface of the end portion of the connecting rod portion 112A adjacent to the first body 11, and a waterproof ring 117 is installed in the annular groove 116.

As shown in FIG. 1 and FIG. 2, the outer peripheral surface of the first base 111 respectively forms two limiting ribs 1111 arranged at intervals and extending radially, and the first body 11 can be further away from the connection at the first base 111 A first extension 118 is formed at one end of the rod portion 112A.

As shown in FIGS. 1 and 2, the plurality of first terminals 12 are respectively electrically connected to corresponding core wires in the first electrical transmission line 30 assembled by the first connector unit 10, and the plurality of first terminals 12 are respectively The interval is disposed in the first body 11 and extends to the end of the connecting rod portion 112A. In the foregoing, the first electrical transmission line 30 is connected to the plurality of first terminals 12 in the connecting rod portion 112A through the first base 111 of the first body 11; when the first body 11 has the first extension 118, the first The electrical transmission line 30 is connected to the plurality of first terminals 12 in the connecting rod portion 112A through the first extension portion 118 and the first base portion 111 of the first body 11.

As shown in FIGS. 1 and 2, the screw ring 13 is rotatably and axially disposed outside the first body 11, and the inner peripheral wall of the screw ring 13 forms an internal thread portion 131, which is preferably implemented in this embodiment In the example, the screw ring 13 forms an inner ring flange 132 with respect to the other end of the connecting rod portion 112A of the first body 11, and the inner ring flange 132 is located on the two limiting flanges 1111 of the first body 11 In this way, the range of the axial movement of the screw ring 13 is restricted, that is, the screw ring 13 can only be moved between the first base portion 111 of the first body 11 and the connecting rod portion 112A.

As shown in FIGS. 1, 2 and 7, the second joint unit 20 is detachably assembled with the first joint unit 10. The second joint unit 20 includes a second body 21 and a plurality of second terminals 22 The second body 21 is a component formed by an insulating material, and the second body 21 includes a second base portion 211 and a fitting portion 212A formed at an axial end of the second base portion 211, the outer periphery of the fitting portion 212A A male threaded portion 213 is formed on the surface for screwing combination with the screw ring 13, and a fitting groove 214A with an opening facing outward is formed in the fitting portion 212A. The shape of the fitting groove 214A is the same as that of the connecting rod portion 112A The shape is matched and can form a waterproof joint. Wherein, the groove wall of the fitting groove 214A includes a set of joint surfaces 215A and a joint portion 216A located on the side of the joint surface 215A. The shape of the joint portion 216A is different from the shape of the joint surface 215A, and the group The shape of the connecting surface 215A matches the connecting surface 113A of the connecting rod portion 112A, the shape of the engaging portion matches the shape of the aligning portion, and the second body 21 can be further away from the sleeve at the second base portion 211 A second extending portion 217 is formed at one end of the engaging portion 212A.

As shown in the preferred embodiments shown in FIGS. 1, 2 and 7, the outer circumferential surface of the connecting rod portion 112A of the first joint unit 10 is formed with at least one annular tight flange 115 and a waterproof ring 117 is installed. After the fitting portion 212A of the second joint unit 20 is sleeved on the connecting rod portion 112A of the first joint unit 10, the annular sealing flange 115 and the waterproof ring 117 on the outer peripheral surface of the connecting rod portion 112A and the fitting portion The fitting grooves of 212A are tightly joined between the groove walls of 214A to form a waterproof joint.

The plurality of second terminals 22 are respectively electrically connected to the corresponding core wires in the second electrical transmission line 40, and the plurality of second terminals 22 are spaced apart in the sleeve portion 212A and extend into the sleeve groove 214A, The arrangement positions of the plurality of second terminals 22 form a one-to-one correspondence with the arrangement positions of the plurality of first terminals, and the second terminals 22 can be butted with the first terminals 12. As shown in the drawings of the preferred embodiment, the first terminal 12 is a female terminal, and the second terminal 22 is a male terminal. In the foregoing, the second electrical transmission line 40 is connected to the plurality of second terminals 22 in the sleeve portion 212A through the second base portion 211 of the second body 21; when the second body 21 has the second extension portion 217, the second The electrical transmission line 40 is connected to the plurality of second terminals 22 in the fitting portion 212A through the second extension portion 217 and the second base portion 211 of the second body 21.

As shown in FIGS. 3A, 3B to 6A, and 6B, in order for the first joint unit 10 and the second joint unit 20 to have the function of quickly and correctly assembling, the connecting rod portion 112A of the first joint unit 10 , 112B, 112C, 112D and the fitting grooves 214A, 212B, 212C, 212D of the second joint unit 20 and the fitting grooves 214A, 214B, 214C, 214D have a single anti-error structure in a specific assembly direction to ensure the first joint unit Each first terminal 12 of 10 is correctly and electrically connected to the second terminal 22 corresponding to the second joint unit 20 respectively. The present invention can be implemented in at least the following ways.

One: As shown in FIGS. 1 and 3A and 3B, the first joint unit 10 has two first terminals, the second joint unit 20 has two second terminals 22, and the connecting surface 113A of the outer peripheral surface of the connecting rod portion 112A is A circular arc surface, the alignment portion 114A is a flat surface, the assembly surface 215A of the groove wall of the fitting groove 214A is a circular arc curve matching the connection surface 113A, and the joint portion 216A is a phase corresponding to the alignment portion 114A Matching planes. In this way, the end shape of the connecting rod portion 112A and the end shape of the fitting groove 214A are non-circular, so that the connection rod portion 112A of the first joint unit 10 and the fitting portion 212A of the second joint unit 20 fit Between the grooves 214A, there is a single anti-error structure in a specific assembly direction to ensure that each first terminal 12 of the first joint unit 10 is properly electrically connected to the second terminal 22 corresponding to the second joint unit 20, respectively.

Second, as shown in FIGS. 4A and 4B, the first joint unit 10 has two first terminals 12, the second joint unit 20 has two second terminals 22, and the connecting surface 113B of the outer peripheral surface of the connecting rod portion 112B is circular Curved surface, the alignment portion 114B is an arc concave surface, the assembly surface 215B of the groove wall of the fitting groove 214B is a circular arc matching the connection surface 113B, and the joint portion 216B is aligned with the alignment portion 114B Matching convex parts. In this way, the end shape of the connecting rod portion 112B and the end shape of the fitting groove are non-circular, and the fitting groove of the connecting rod portion 112B of the first joint unit 10 and the fitting portion 212B of the second joint unit 20 The 214B is provided with a single anti-error structure in a specific assembly direction to ensure that each first terminal 12 of the first joint unit 10 is properly electrically connected to the second terminal 22 corresponding to the second joint unit 20, respectively.

Third, as shown in FIGS. 5A and 5B, the first joint unit 10 has three first terminals 12, the second joint unit 20 has three second terminals 22, and the connecting surface 113C of the outer peripheral surface of the connecting rod portion 112C is circular The arc surface, the alignment portion 114C is an arc concave surface, the assembly surface 215C of the groove wall of the fitting groove 214C is a circular arc matching the connection surface 113C, and the joint portion 216C is opposite to the alignment portion 114C Matching convex parts. In this way, the end shape of the connecting rod portion 112C and the end shape of the fitting groove 214C are non-circular, so that the connection rod portion 112C of the first joint unit 10 and the fitting portion 212C of the second joint unit 20 fit Between the grooves 214C, a single anti-error structure with a specific assembly direction is provided to ensure that each first terminal 12 of the first joint unit 10 is properly electrically connected to the second terminal 22 corresponding to the second joint unit 20, respectively.

Fourth, as shown in FIGS. 6A and 6B, the first joint unit 10 has four first terminals 12, the second joint unit 20 has four second terminals 22, and the connecting surface 113D of the outer peripheral surface of the connecting rod portion 112D is circular The curved surface, the alignment portion 114D is an arc concave surface, the assembly surface 215D of the groove wall of the fitting groove 214D is a circular arc matching the connection surface 113D, and the joint portion 216D is aligned with the alignment portion 114D Matching convex parts. In this way, the end shape of the connecting rod portion 112D and the end shape of the fitting groove 214D are non-circular, so that the connection rod portion 112D of the first joint unit 10 and the fitting portion 212D of the second joint unit 20 fit Between the grooves 214D, there is a single anti-error structure in a specific assembly direction to ensure that each first terminal 12 of the first joint unit 10 is correctly electrically connected to the second terminal 22 corresponding to the second joint unit 20, respectively.

With the creation of the aforementioned composition structure, the present invention takes the preferred embodiment shown in FIGS. 1 and 2 as an example. When the first connector unit 10 is connected to the first electrical transmission line 30, the second connector unit 20 is connected to the second After the electrical transmission line 40, the first electrical transmission line 30 and the second electrical transmission line 40 are switched, wherein, as shown in FIGS. 1, 2 and 7, the connecting rod portion 112A of the first connector unit 10 is used to The second slot unit 212A of the second joint unit 20 has a single anti-error structure between the fitting grooves 214A. The joint portion 216D and the alignment portion 114D provide an alignment reference for the assembler to identify the assembly direction , And only when the connecting rod portion 112A and the fitting groove 214A are correctly aligned, can they be inserted into the fitting groove 214A, thereby ensuring that each first terminal 12 of the first joint unit 10 and the second joint unit 20 are respectively The corresponding second terminals 22 are correctly electrically connected, and then, the screw caps 13 of the first connector unit 10 are screwed to the second body 21 of the second connector unit 20, so that even if the first electrical transmission line 30 is The second electrical transmission line 40 transmits current or signal through the waterproof electrical adapter.

10‧‧‧First joint unit 11‧‧‧ first body 111‧‧‧The first base 1111‧‧‧ limit stop 112A, 112B, 112C, 112D 113A, 113B, 113C, 113D 114A, 114B, 114C, 114D ‧‧‧ alignment 115‧‧‧Annular sealing flange 116‧‧‧Annular groove 117‧‧‧Waterproof ring 118‧‧‧First Extension 12‧‧‧First terminal 13‧‧‧screw ring 131‧‧‧ Internal thread part 132‧‧‧Inner ring flange 20‧‧‧Second joint unit 21‧‧‧Second body 211‧‧‧The second base 212A, 212B, 212C, 212D 213‧‧‧ External thread part 214A, 214B, 214C, 214D 215A, 215B, 215C, 215D 216A, 216B, 216C, 216D 217‧‧‧Second extension 22‧‧‧Second terminal 30‧‧‧The first electrical transmission line 40‧‧‧Second electrical transmission line

FIG. 1 is a three-dimensional schematic diagram of a first embodiment of a waterproof electrical adaptor with fast alignment assembly function according to the present invention connecting a first electrical transmission line and a second electrical transmission line. FIG. 2 is a partial cross-sectional schematic view of a preferred embodiment of the waterproof electrical adaptor with fast alignment assembly function of the present invention connecting a first electrical transmission line and a second electrical transmission line. FIG. 3A is an end plan schematic view of the first preferred embodiment of the connecting rod portion of the first connector unit in the waterproof electrical adaptor with fast alignment assembly function of the present invention. 3B is a schematic end view of the first preferred embodiment of the fitting portion of the second connector unit of the waterproof electrical adaptor with fast alignment assembly function of the present invention. FIG. 4A is a schematic end view of the second preferred embodiment of the connecting rod portion of the first connector unit in the waterproof electrical adaptor with quick alignment assembly function of the present invention. 4B is a schematic end view of the second preferred embodiment of the sleeve portion of the second connector unit of the waterproof electrical adapter with rapid alignment assembly function of the present invention. FIG. 5A is an end plan view of a third preferred embodiment of the connecting rod portion of the first connector unit in the waterproof electrical adaptor with quick alignment assembly function of the present invention. FIG. 5B is a schematic end view of the third preferred embodiment of the fitting portion of the second connector unit in the waterproof electrical adaptor with fast alignment assembly function of the present invention. 6A is a schematic end view of the fourth preferred embodiment of the connecting rod portion of the first connector unit in the waterproof electrical adaptor with quick alignment assembly function of the present invention. FIG. 6B is a schematic end view of a fourth preferred embodiment of the fitting portion of the second connector unit in the waterproof electrical adaptor with fast alignment assembly function of the present invention. 7 is a schematic plan view after the first connector unit and the second connector unit of the waterproof electrical adapter shown in FIGS. 1 and 2 are assembled.

10‧‧‧First joint unit

11‧‧‧ first body

111‧‧‧The first base

112A‧‧‧Connecting rod

113A‧‧‧Connecting surface

114A‧‧‧Alignment Department

115‧‧‧Annular sealing flange

118‧‧‧First Extension

12‧‧‧First terminal

13‧‧‧screw ring

131‧‧‧ Internal thread part

20‧‧‧Second joint unit

21‧‧‧Second body

211‧‧‧The second base

212A‧‧‧fitting department

213‧‧‧ External thread part

214A‧‧‧sleeve

215A‧‧‧Group junction

216A‧‧‧Joint

217‧‧‧Second extension

22‧‧‧Second terminal

30‧‧‧The first electrical transmission line

40‧‧‧Second electrical transmission line

Claims (7)

A waterproof electrical adaptor with quick alignment assembly function, including: A first joint unit, including: A first body of insulating material includes a first base portion and a connecting rod portion formed at an axial end of the first base portion. The outer peripheral surface of the connecting rod portion includes a connecting surface and side surfaces of the connecting surface A pair of positions with different shapes; A plurality of first terminals, spaced apart in the first body and extending to the end of the connecting rod; and A screw ring, which is rotatably and axially moveable and is arranged outside the first body, and the inner peripheral wall of the screw ring forms an internal thread portion; and A second joint unit, which can be detachably assembled with the first joint unit, and includes: A second body of insulating material includes a second base portion and a fitting portion formed at an axial end of the second base portion, the outer peripheral surface of the fitting portion forms an external thread portion, and can be screwed with the screw ring In combination, a fitting groove with an opening facing outward is formed in the fitting portion, and the groove wall of the fitting groove includes a set of joint surfaces and a joint portion located on the side of the set of joint surfaces and having different shapes. The shape of the surface matches the connecting surface, the shape of the joint portion matches the shape of the alignment portion, and the groove wall of the fitting groove can form a waterproof joint with the connecting rod portion; and A plurality of second terminals, arranged at intervals in the sleeve portion and extending into the sleeve groove, the arrangement positions of the plurality of second terminals form a one-to-one correspondence with the arrangement positions of the plurality of first terminals, and The second terminal can be docked with the first terminal. The waterproof electrical adaptor with quick alignment assembly function as described in claim 1, wherein the outer peripheral surface of the connecting rod portion of the first joint unit is formed with at least one annular tight flange and is provided with a waterproof A ring, the fitting part of the second joint unit is sleeved on the connecting rod part of the first joint unit, and the annular sealing flange and the waterproof ring of the outer peripheral surface of the connecting rod part can fit with the fitting part There is a tight waterproof joint state between the groove walls. The waterproof electrical adaptor with quick alignment function as described in claim 2, wherein the first body forms an annular groove on the outer peripheral surface of the end of the connecting rod portion adjacent to the first body, the waterproof The ring is arranged in the annular groove. The waterproof electrical adaptor with quick alignment assembly function as described in claim 1, wherein the outer peripheral surface of the first base portion respectively forms two limiting flanges arranged at intervals and radially protruding, the screw ring An inner ring flange is formed relative to the other end of the connecting rod portion of the first body, and the inner ring flange is located between the two limiting flanges of the first body, thereby limiting the axial direction of the screw ring Range of movement. The waterproof electrical adaptor with quick alignment assembly function as described in claim 3, wherein the outer peripheral surface of the first base portion respectively forms two limiting flanges arranged at intervals and radially protruding, the screw ring An inner ring flange is formed relative to the other end of the connecting rod portion of the first body, and the inner ring flange is located between the two limiting flanges of the first body, thereby limiting the axial direction of the screw ring Range of movement. The waterproof electrical adaptor with quick alignment assembly function according to any one of claims 1 to 5, wherein the connecting surface of the outer peripheral surface of the connecting rod portion is a circular arc surface, and the alignment portion is a flat surface The assembly surface of the groove wall of the fitting groove is a circular arc matching the connection surface, and the joint portion is a flat surface matching the alignment portion. The waterproof electrical adaptor with quick alignment assembly function according to any one of claims 1 to 5, wherein the connecting surface of the outer circumferential surface of the connecting rod portion is a circular arc surface, and the alignment portion is an arc The concave surface, the assembly surface of the groove wall of the fitting groove is a circular arc matching the connection surface, and the joint portion is an arc convex portion matching the alignment portion.

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