CN221201616U

CN221201616U - Magnetic attraction male connector

Info

Publication number: CN221201616U
Application number: CN202322877349.0U
Authority: CN
Inventors: 朱绪洪; 杨奕康
Original assignee: Dongguan Qunhan Electronic Co ltd
Current assignee: Dongguan Qunhan Electronic Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-06-21
Anticipated expiration: 2033-10-25

Abstract

The utility model discloses a magnetic attraction male connector, which comprises: a PCB board having a first board portion and a second board portion; the signal sheet is welded on the first plate part, and the other part of the signal sheet is positioned on one side of the first plate part far away from the second plate part; the plug connector comprises a plug body and a signal terminal, the plug body is positioned at one side of the second plate part far away from the first plate part, one end of the signal terminal is positioned in the plug body, and the other end of the signal terminal is welded on the second plate part; the insulation rubber core is provided with a first block part and a second block part, the first block part coats the first plate part and the signal terminal and is welded at the end part of the first plate part, the second block part coats the end part of the plugging body, which is close to the PCB, and the insulation rubber core is integrally connected with the first plate part and the plugging body through injection molding; the magnet is sleeved on the first block part and surrounds the PCB and the signal sheet, and the magnet is connected with the first block part through a connecting glue; waterproof glue is filled between the magnet and the second plate part. The utility model has very good waterproof property.

Description

Magnetic attraction male connector

Technical Field

The utility model relates to the technical field of connectors, in particular to a magnetic attraction male connector.

Background

The magnetic connector is also called a magnet type connector, a magnetic connector and a magnetic connector, and is widely applied to one of connectors on electronic equipment. The connector is arranged through the magnets and the magnets in opposite attraction, and is large in attraction force, and suitable for small-size structures and light and thin products.

The magnetic connector comprises a magnetic male connector and a magnetic female connector which is magnetically opposite to the magnetic male connector, a plurality of magnetic male connectors are provided with plug connectors at present, the magnetic male connector is plugged in a plug port of an electronic product through the plug connectors, and the magnetic male connector is electrically connected with the electronic product. Many of the magnetic suction male connectors of this type currently on the market are poor in water resistance. For example, patent publication No. CN205429326U discloses an adapter for mating with a mating connector provided with a mating magnet and a plurality of POGO terminals, which includes a plug connector and a metal housing covering the tail end of the plug connector, the plug connector includes an insulating body and a plurality of conductive terminals accommodated in the insulating body, the adapter further includes a circuit board, a plurality of metal solder tabs are provided on the front surface of the circuit board, the conductive terminals are welded back on the metal solder tabs, and a plurality of metal contact tabs exposed to the outside for contacting the POGO terminals are provided on the rear surface of the circuit board. The circuit board for the adapter replaces the conductive terminal in the prior art, simplifies the structure, can realize positive and negative insertion and magnetic force fixation, and on the basis, the adapter is additionally provided with the magnet which is matched with the butt connector, so that the magnetic attraction between the adapter and the butt connector can be enhanced, the fuzzy adsorption is realized by utilizing the magnetic attraction, and the adapter is convenient for consumers to use. The novel adapter is the magnetic male connector which can be spliced with the plug-in port of the electronic product, the structure of the adapter can show that the PCB of the plug-in adapter is arranged between the plug connector and the insulating block, and the PCB and the insulating block are both positioned in the metal shell, but the gap between the metal shell and the insulating block is not subjected to waterproof treatment, so that external water easily moves to the position of the PCB through the gap between the metal shell and the insulating block, and the PCB is damaged.

Therefore, developing a magnetic male connector with good waterproof function becomes a current urgent need to be solved.

Disclosure of utility model

In view of the above problems, the present utility model provides a magnetic male connector, which has good waterproof performance, can prevent external water from entering into an electronic product through a plug, and can protect a PCB from contacting external water.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a magnetically attractable male connector, comprising:

A PCB board having a first board portion and a second board portion;

A signal sheet, wherein one part of the signal sheet is welded on the first plate part, and the other part of the signal sheet is positioned on one side of the first plate part away from the second plate part;

The plug connector comprises a plug body and a signal terminal, wherein the plug body is positioned at one side of the second plate part far away from the first plate part, one end of the signal terminal is positioned in the plug body, and the other end of the signal terminal is welded on the second plate part;

the insulation rubber core is provided with a first block part and a second block part, the first block part covers the first plate part and the signal terminals and is welded to the end part of the first plate part, the second block part covers the end part of the plugging body, which is close to the PCB, and the insulation rubber core is integrally connected with the first plate part and the plugging body through injection molding;

The magnet is sleeved on the first block part and surrounds the PCB and the signal sheet, the magnet is connected with the first block part through a connecting glue phase, and waterproof glue is filled between the second plate part and the magnet.

In one embodiment, the cross-sectional dimension of the first block portion is smaller than the cross-sectional dimension of the second block portion, a limiting step surface is formed between the first block portion and the second block portion, and the magnet abuts against the limiting step surface.

In one embodiment, the first block portion is provided with a heat dissipation hole corresponding to the signal terminal.

In one embodiment, the peripheral side surface of the second block portion is disposed obliquely from the plugging body toward the PCB board and away from the plugging body.

In one embodiment, the first plate portion is provided with a limiting groove corresponding to each signal terminal, and the signal terminals are located in the limiting grooves.

In one embodiment, the signal sheet includes a first sheet portion and a second sheet portion that are vertically connected, the first sheet portion is welded to the first plate portion, and the second sheet portion is located on a side of the first plate portion away from the second plate portion.

In one embodiment, the width dimension of the first sheet portion gradually decreases toward the first plate portion to the second plate portion.

In one embodiment, the number of the signal pieces and the number of the signal terminals are at least two, the signal pieces are arranged in a one-to-one correspondence manner, and the signal pieces are sequentially arranged at equal intervals along the length direction of the PCB.

In one embodiment, the signal sheet is a copper sheet.

In one embodiment, an injection molding limit protrusion is disposed on an outer surface of one end of the plugging body, which is close to the PCB.

Compared with the prior art, the magnetic male connector has the following beneficial effects:

According to the utility model, the insulating rubber core for connecting the second plate part of the PCB and the plug-in body of the plug connector is arranged, and as the first block part of the insulating rubber core covers the first plate part of the PCB and is connected with the PCB through integral injection molding, the second block part of the insulating rubber core covers the plug-in body of the plug connector, which is close to the end part of the PCB, and is connected with the plug-in body through integral injection molding, so that no gap exists between the insulating rubber core and the plug connector and between the insulating rubber core and the PCB, external water cannot enter the plug connector from the insulating rubber core and the plug connector and from the insulating rubber core to the PCB, and then enters the electronic product from the plug connector, and therefore, the electronic product is protected; through magnet suit in the first piece portion of insulating rubber core to make magnet surround the second board portion of signal piece and PCB board, fill waterproof glue again between the second board portion of magnet and PCB board, make the PCB board sealed by insulating rubber core and waterproof glue parcel, thereby lead to external water unable injury PCB board, make the PCB board also obtain the protection, waterproof glue can also increase the joint strength of magnet and insulating rubber core moreover, make the magnet be difficult for coming off from insulating rubber core. Therefore, the utility model has very good waterproof property, can prevent external water from entering the electronic product through the magnetic attraction male connector, protects the electronic product and can prevent the external water from damaging the PCB.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of a magnetic male connector according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the magnetically attractable male connector of FIG. 1;

Fig. 3 is a schematic perspective view of the magnetic male connector shown in fig. 1 with the magnet removed.

Reference numerals:

10. A PCB board; 11. a first plate portion 12, a second plate portion; 121. a limit groove; 20. a signal sheet; 21. a first sheet portion; 22. a second sheet portion; 30. a plug; 31. a plug body; 311. injection molding limiting protrusions; 32. a signal terminal; 40. an insulating rubber core; 41. a first block portion; 411. a heat radiation hole; 42. a second block portion; 43. limiting step surfaces; 50. a magnet; 60. and (3) waterproof glue.

Detailed Description

The following description is of the preferred embodiments of the utility model, and is not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise. The meaning of "a number" is one or more than one unless specifically defined otherwise.

Referring to fig. 1 to 3, a magnetic male connector according to an embodiment of the utility model includes a PCB 10, a signal chip 20, a plug 30, an insulating rubber core 40 and a magnet 50.

The PCB board 10 has a first board portion 11 and a second board portion 12 disposed opposite to each other; one part of the signal sheet 20 is welded on the first plate part 11, and the other part is positioned on one side of the first plate part 11 far away from the second plate part 12 and used for contacting poto pin of an external magnetic suction female connector so as to realize the electric connection between the magnetic suction male connector and the external magnetic suction female connector; the plug connector 30 is used for being plugged into a plug port of an electronic product to realize the electric connection between the magnetic attraction male connector and the electronic product, the plug connector 30 comprises a plug body 31 and a signal terminal 32, the plug body 31 is positioned at one side of the second plate part 12 far away from the first plate part 11, one end of the signal terminal 32 is positioned in the plug body 31, and the other end is welded on the second plate part 12; the insulating rubber core 40 is provided with a first block part 41 and a second block part 42, the first block part 41 covers the first plate part 11 and the signal terminals 32 and is welded at the end part of the first plate part 11, the second block part 42 covers the end part of the plug body 31, which is close to the PCB 10, and the insulating rubber core 40 is integrally connected with the first plate part 11 and the plug body 31 through injection molding; the magnet 50 is used for being adsorbed by the magnet 50 of the external magnetic female connector so that the signal sheet 20 of the magnetic male connector can be tightly contacted with the poto pin of the external magnetic female connector, the magnet 50 is sleeved on the first block 41 and surrounds the PCB 10 and the signal sheet 20, and the magnet 50 is connected with the first block 41 through the connecting glue coated on the peripheral side surface of the first block 41; the waterproof glue 60 is filled between the second plate portion 12 and the magnet 50, so that the PCB board 10 is sealed by the waterproof glue 60 to be protected. The signal sheet 20 on the side of the first plate 11 away from the second plate 12 is partially exposed out of the waterproof glue 60.

During assembly, the signal terminal 32 of the plug 30 is welded on the second board portion 12 of the PCB 10, and then the signal piece 20 is welded on the first board portion 11 of the PCB 10; after the welding is finished, the assembly formed by the PCB 10, the signal sheet 20 and the plug connector 30 is put into an injection molding machine for injection molding to form an insulating rubber core 40, and the insulating rubber core 40 coats the second plate part 12, the part of the signal terminal 32 welded on the PCB and the end part of the plug body 31 of the plug connector 30, which is close to the PCB 10; spot-connecting glue on the peripheral side surface of the insulating glue core 40 covering the first block 41 of the second plate 12 of the PCB 10, and then sleeving the magnet 50 outside the first block 41 of the insulating glue core 40 and surrounding the signal sheet 20 and the second plate 12 of the PCB 10, wherein the magnet 50 and the first block 41 are connected through the connecting glue; and then, the waterproof glue 60 is dispensed to a crack between the magnet 50 and the PCB 10 through a glue dispenser, and finally, the waterproof glue 60 is subjected to ultraviolet curing to obtain a final product. When in use, the plug 30 of the magnetic attraction male connector is plugged into the plug interface of the electronic product.

According to the utility model, the insulating rubber core 40 for connecting the second plate part 12 of the PCB 10 and the plug body 31 of the plug 30 is arranged, and because the first block part 41 of the insulating rubber core 40 covers the first plate part 11 of the PCB 10 and is connected with the PCB 10 through integral injection molding, the second block part 42 of the insulating rubber core 40 covers the end part of the plug body 31 of the plug 30, which is close to the PCB 10, and is connected with the plug body 31 through integral injection molding, no gap exists between the insulating rubber core 40 and the plug 30 and between the insulating rubber core 40 and the PCB 10, so that external water cannot enter the plug 30 from between the insulating rubber core 40 and the plug 30 and between the insulating rubber core 40 and the PCB 10 and then enter an electronic product from the plug 30, and therefore, the electronic product is protected; through magnet 50 suit in the first piece portion 41 of insulating rubber core 40 to make magnet 50 surround signal piece 20 and the second board portion 12 of PCB board 10, pack waterproof glue 60 again between magnet 50 and the second board portion 12 of PCB board 10, make PCB board 10 by insulating rubber core 40 and waterproof glue 60 parcel seal, thereby lead to external water unable injury PCB board 10, make PCB board 10 also obtain the protection, waterproof glue 60 can also increase the joint strength of magnet and insulating rubber core moreover, make the magnet be difficult for coming off from insulating rubber core. Therefore, the utility model has very good waterproof performance, can prevent external water from entering into the electronic product through the magnetic attraction male connector, protects the electronic product, and can prevent the external water from damaging the PCB 10 of the magnetic attraction male connector.

In one embodiment, as shown in fig. 2, the first plate 11 is provided with a limiting groove 121 corresponding to each signal terminal 32, and the signal terminals 32 are located in the limiting grooves 121. The positioning groove 121 can enable the signal terminal 32 to be accurately mounted on the PCB board 10.

In one embodiment, the signal sheet 20 includes a first sheet portion 21 and a second sheet portion 22 vertically connected, the first sheet portion 21 is welded to the first plate portion 11, and the second sheet portion 22 is located on a side of the first plate portion 11 away from the second plate portion 12. The first sheet portion 21 is covered by the waterproof glue 60, and the second sheet portion 22 is exposed to the waterproof glue and is used for abutting against the poto pin of the external magnetic female connector.

Preferably, the width dimension of the first sheet portion 21 gradually decreases toward the first plate portion 11 to the second plate portion 12. This arrangement can reduce the soldering size of the first sheet portion 21 on the PCB board 10. Improving welding

Further, the signal sheet 20 is a copper sheet with good signal transmission.

In an embodiment, the number of the signal pieces 20 and the number of the signal terminals 32 are at least two, and are arranged in a one-to-one correspondence manner, and the signal pieces 20 are sequentially arranged at equal intervals along the length direction of the PCB board 10.

In an embodiment, an injection molding limit protrusion 311 is disposed on an outer surface of the plug body 31 near one end of the PCB board. The injection molding limiting protrusion 311 is used to cooperate with the limiting groove 121 in the injection molding machine, and is used to limit the mounting position of the assembly structure formed by the PCB board 10, the plug connector 30 and the signal chip 20 in the injection molding machine, so as to facilitate the injection molding of the insulating rubber core 40.

In one embodiment, the cross-sectional dimension of the first block 41 is smaller than the cross-sectional dimension of the second block 42, a limiting step surface 43 is formed between the first block 41 and the second block 42, and the magnet 50 abuts against the limiting step surface 43. The arrangement of the limiting step surface 43 can enable the magnet 50 to be quickly and accurately mounted on the first block portion 41 without moving to the position where the second block portion 42 is located, and efficiency of mounting the magnet 50 on the insulating rubber core 40 is improved.

In one embodiment, the first block 41 is provided with a heat dissipation hole 411 corresponding to the signal terminal 32. The heat dissipation holes 411 can increase the heat dissipation effect of the signal terminals 32 of the plug connector 30 and prolong the service life of the signal terminals 32.

In an embodiment, the peripheral side surface of the second block portion 42 is disposed obliquely from the socket body 31 toward the PCB board 10 and away from the socket body 31. This arrangement facilitates the drawing of the insulation core 40 after injection molding.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

1. A magnetically attractable male connector, comprising:

A PCB board having a first board portion and a second board portion;

2. The male connector of claim 1, wherein the first block portion has a smaller cross-sectional dimension than the second block portion, a spacing step surface is formed between the first block portion and the second block portion, and the magnet abuts the spacing step surface.

3. The male magnetic head connector according to claim 1, wherein the first block portion is provided with a heat radiation hole corresponding to the signal terminal.

4. The magnetic head connector according to claim 1, wherein the peripheral side surface of the second block portion is inclined from the socket body toward the PCB and away from the socket body.

5. The connector of claim 1, wherein the first plate portion has a limiting slot corresponding to each of the signal terminals, and the signal terminals are located in the limiting slots.

6. The male magnetic head connector according to any one of claims 1 to 5, wherein the signal piece comprises a first piece portion and a second piece portion that are vertically connected, the first piece portion being welded to the first plate portion, the second piece portion being located on a side of the first plate portion remote from the second plate portion.

7. The male magnetic head connector of claim 6, wherein the first tab portion has a width dimension that tapers in a direction from the first plate portion to the second plate portion.

8. The connector of any one of claims 1 to 5, wherein the number of the signal pieces and the number of the signal terminals are at least two, and the signal pieces are arranged in a one-to-one correspondence manner, and the signal pieces are sequentially arranged at equal intervals along the length direction of the PCB.

9. The male magnetic head connector of any of claims 1 to 5, wherein the signal sheet is a copper sheet.

10. The connector of any one of claims 1 to 5, wherein the outer surface of the plug body near one end of the PCB is provided with an injection limiting protrusion.