CN112366473A

CN112366473A - Magnetic type coupler

Info

Publication number: CN112366473A
Application number: CN202011239354.3A
Authority: CN
Inventors: 郑建中; 孙良忠; 瞿海亮
Original assignee: ZHEJIANG ZHONGXUN ELECTRONICS CO Ltd
Current assignee: ZHEJIANG ZHONGXUN ELECTRONICS CO Ltd
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2021-02-12

Abstract

The invention discloses a magnetic-type coupler, which comprises a coupler female end and a coupler male end which is matched and inserted in the coupler female end, wherein a magnetic part is arranged on the coupler female end, and a metal part is arranged on the coupler male end, so that the coupler male end cannot adsorb surrounding scrap iron in the plugging and unplugging process due to the fact that the metal part is not magnetic, the scrap iron can be effectively prevented from entering the coupler female end along with the coupler male end when the coupler male end is plugged and unplugged, the magnetic part and the metal part can be quickly and magnetically connected when the coupler male end is inserted in the coupler female end, the matching and inserting tightness is good, the external scrap iron can be prevented from being brought into the coupler female end, and therefore the safe creepage distance between electrodes of the coupler can be kept, the security is high, promotes performance.

Description

Magnetic type coupler

Technical Field

The invention relates to the technical field of electrical equipment, in particular to a magnetic coupler.

Background

The Chinese patent document CN210806114U discloses a magnetic plug, which comprises a first plug part and a second plug part, wherein the front end of the first plug part is provided with a bulge, the front end of the second plug part is provided with a socket which is matched and plugged with the bulge, the front end of the bulge is provided with a first magnetic part, the inner wall of the socket is provided with a second magnetic part which is matched and adsorbed with the first magnetic part, at least one first electric connecting column is arranged in the socket, the bulge is provided with a jack which is matched and plugged with the first electric connecting column, and the jack is internally provided with a second electric connecting column which is elastically compressed on the first electric connecting column when the first electric connecting column is plugged into the jack.

The magnetic plug has the following problems that the first plug-in component is usually arranged on a power line, the second plug-in component is usually arranged on an electric appliance body, when the magnetic plug is used daily, an electric appliance is moved to plug and unplug the power line, the first magnetic component can easily adsorb surrounding scrap iron in the process of plugging and unplugging the power line, the scrap iron is brought into the second plug-in component and adsorbed by the second magnetic component, the scrap iron accumulates to a certain degree, the creepage distance between poles is reduced, the short circuit of the electric appliance can be possibly caused in serious cases, and potential safety hazards exist.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the problem that in the process of plugging and unplugging the magnetic suction plug in the prior art, the creepage distance between the poles is reduced and the potential safety hazard exists because the first magnetic part adsorbs iron filings and brings the iron filings into the second plugging part, thereby providing the magnetic suction type coupler which can prevent the iron filings from being guided into the shell, keep the safe creepage distance between the poles and has high safety.

The invention provides a magnetic type coupler which comprises a coupler female end, a coupler male end and a magnetic structure, wherein the coupler male end is matched and plugged in the coupler female end, the magnetic structure is arranged between the coupler female end and the coupler male end, the magnetic structure comprises a magnetic part arranged in the coupler female end and a metal part correspondingly arranged on one end of the coupler male end and attracted by the magnetic part, and when the coupler male end is plugged in the coupler female end, the magnetic part is magnetically connected with the metal part so that the coupler male end is tightly plugged in the coupler female end.

In the above magnetic type coupler, one end of the coupler male end is an insertion end inserted into the port of the coupler female end, and the metal member includes a contact portion connected to an end portion of the insertion end and side surfaces on both sides, and an installation portion bent by the contact portion and inserted into the coupler male end.

In the magnetic type coupler, the metal piece is of a metal sheet structure with a rectangular cross section, the inserting end is provided with a containing groove suitable for containing the contact part, and two ends of the containing groove extend to the bottoms of the side faces of two sides of the inserting end.

In foretell magnetism is inhaled formula coupler, the storage tank both ends are provided with the intercommunication the jack structure of the public end inner chamber of coupler, the installation department passes jack structure with wear to establish the inside earth connection of the public end of coupler links to each other.

In foretell magnetism is inhaled formula coupler, the earth connection pass through binding post with the metalwork links to each other, binding post includes the centre gripping the wiring district of earth connection, and with the metalwork passes through the fixed district that fastening bolt is fixed to link to each other.

In the magnetic-type coupler, the inner cavity of the female end of the coupler is provided with the elastic contacts, and when the male end of the coupler is inserted into the female end of the coupler, the elastic contacts elastically press against two sides of the metal piece.

In the magnetic coupler, the elastic contact is of a U-shaped structure, two ends of the elastic contact are respectively provided with V-shaped protrusions which are bent in opposite directions, and the V-shaped protrusions elastically abut against two sides of the metal piece.

In foretell magnetism is inhaled formula coupler, the magnetic force spare is the permanent magnet, be equipped with in the inner chamber of the female end of coupler and be used for installing the mounting groove of magnetic force spare, the magnetic force spare is installed be located when in the mounting groove in the U type of elastic contact bends.

In foretell magnetism is inhaled formula coupler, the back of the female end of coupler has been seted up and has been supplied elastic contact male open structure, open structure department can be dismantled and be provided with limit baffle, limit baffle with form spacing passageway between the mounting groove lateral wall, the elastic contact joint is fixed in the spacing passageway.

In foretell magnetism is inhaled formula coupler, the port department of the female end of coupler still is equipped with the spacing groove, elastic contact's both ends can insert in the spacing groove.

Compared with the prior art, the technical scheme of the invention has the following advantages:

1. the magnetic-type coupler provided by the invention is installed and fixed on an electric appliance according to the condition that the female end of the coupler is arranged, the male end of the coupler is connected with one end of a power line, the magnetic piece is arranged on the female end of the coupler, the metal piece is arranged on the male end of the coupler, and the metal piece is not magnetic, so that the male end of the coupler can not adsorb surrounding scrap iron in the plugging and unplugging process, the scrap iron can be effectively prevented from entering the female end of the coupler along with the male end of the coupler when the male end of the coupler is plugged and unplugged, the design has the advantages that the magnetic piece can be quickly and magnetically connected with the metal piece when the male end of the coupler is plugged and unplugged, the external scrap iron can be prevented from being brought into the female end of the coupler, and the safe creepage distance between the poles of the coupler can be kept, the security is high, promotes performance.

2. According to the magnetic type coupler provided by the invention, the accommodating groove is arranged at the inserting end, so that the contact part of the metal piece is fixed on the outer surface of the inserting end along the accommodating groove and is arranged in parallel with the outer surface of the inserting end.

3. According to the magnetic-type coupler provided by the invention, through holes are formed in the mounting part of the metal sheet and the fixing area of the wiring terminal, the insertion end is provided with a round hole corresponding to the through hole, and the self-tapping screw penetrates through the through hole and is fastened in the round hole, so that the wiring terminal, the metal piece and the insertion end are kept fixed in relative positions, and the magnetic-type coupler is simple in structure and stable and reliable in mounting.

4. According to the magnetic-type coupler provided by the invention, the elastic contact is connected with the grounding wire in a welding manner, and when the male end of the coupler is inserted into the female end of the coupler, the elastic contact elastically presses against two sides of the metal piece, so that the grounding wires of the male end of the coupler and the female end of the coupler are electrically connected with each other, and the grounding function of an electric appliance is realized.

5. According to the magnetic-type coupler provided by the invention, the elastic contact is inserted into the coupler female end from the opening structure, the U-shaped bent part of the elastic contact is extruded by the limiting baffle and the side wall of the mounting groove and is clamped and fixed in the limiting channel, and the U-shaped two ends of the elastic contact extend into the limiting groove at the port of the coupler female end, so that the elastic contact is kept fixed in the coupler female end at the relative position, the inserting end can be smoothly inserted into the U-shaped opening of the elastic contact, and the metal sheet can be ensured to be in inserting contact with the V-shaped protrusion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic diagram of a magnetic coupler according to the present invention;

FIG. 2 is a cross-sectional view of the female end of the coupler shown in FIG. 1;

FIG. 3 is a cross-sectional view of the male end of the coupler of FIG. 1;

FIG. 4 is a front view of a female coupler end of the magnetic coupler provided in accordance with the present invention;

FIG. 5 is a schematic diagram of a male end of a magnetic coupler according to the present invention;

FIG. 6 is a schematic diagram of the female end of the coupler shown in FIG. 4;

FIG. 7 is a schematic view of the metal member shown in FIG. 3 connected to a ground line via a terminal;

description of reference numerals:

1-coupler female end; 11-a magnetic member; 12-a spring contact; 13-V shaped protrusions; 14-mounting grooves; 15-an open structure; 16-a limit baffle; 17-a limit channel; 18-a limiting groove; 19-a bolt assembly;

2-coupler male end; 21-a metal part; 22-a plug end; 23-a contact portion; 24-a mounting portion; 25-a receiving groove; 26-a jack structure; 27-a ground line;

3-a wiring terminal; 31-a wiring region; 32-a fixation zone; 33-self-tapping screw.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment is described in detail below with reference to the accompanying drawings:

the invention provides a magnetic coupler as shown in fig. 1-7, which comprises a coupler female end 1, a coupler male end 2 inserted into the coupler female end 1 in a matching manner, and a magnetic structure arranged between the coupler female end 1 and the coupler male end 2, wherein the magnetic structure comprises a magnetic member 11 arranged in the coupler female end 1 and a metal member 21 correspondingly arranged at one end of the coupler male end 2 and attracted by the magnetic member 11, and when the coupler male end 2 is inserted into the coupler female end 1, the magnetic member 11 is magnetically connected with the metal member 21 so that the coupler male end 2 is tightly inserted into the coupler female end 1.

The above embodiment is a core technical solution of this embodiment, according to that the coupler female end 1 is installed and fixed on an electrical appliance, the coupler male end 2 is connected to one end of a power line, by arranging the magnetic member 11 on the coupler female end 1 and arranging the metal member 21 on the coupler male end 2, since the metal member 21 itself has no magnetism, the coupler male end 2 does not adsorb surrounding iron filings during plugging and unplugging, and can effectively prevent the iron filings from entering the coupler female end 1 along with the coupler male end 2 when the coupler male end 2 is plugged and unplugged, the design has the advantages that not only can the magnetic member 11 and the metal member 21 be magnetically connected quickly when the coupler male end 2 is plugged into the coupler female end 1, the mating plugging tightness is good, but also the external iron filings can be prevented from being brought into the coupler female end 1, therefore, the safe creepage distance between poles of the coupler is kept, the safety is high, and the use performance is improved.

As shown in fig. 1, one end of the coupler male end 2 is an insertion end 22 inserted into the port of the coupler female end 1, the metal member 21 includes a contact portion 23 connected to an end portion and two side surfaces of the insertion end 22, and an installation portion 24 bent by the contact portion 23 and inserted into the coupler male end 2, two pins for connecting a neutral wire and a live wire and two jacks arranged on the insertion end 22 corresponding to the pins are further arranged in the port of the coupler female end 1, and when the insertion end 22 is inserted into the port of the coupler female end 1, the magnetic member adsorbs the contact portion 23 of the metal member 21, so that the pins can go deep into the jacks, and the electrical connection between the neutral wire and the live wire and an electrical appliance is realized.

As a specific structural arrangement, the metal member 21 is a metal sheet structure with a rectangular cross section, the insertion end 22 is provided with a containing groove 25 adapted to contain the contact portion 23, two ends of the containing groove 25 extend to the bottom of the two side surfaces of the insertion end 22, and the insertion end 22 is provided with the containing groove 25, so that the contact portion 23 of the metal member 21 is fixed on the outer surface of the insertion end 22 along the containing groove 25 and is flush with the outer surface of the insertion end 22, which can improve the installation speed of the metal member 21 and ensure that the metal member 21 does not affect the insertion and extraction speed of the coupler male end 2, as shown in fig. 5, two ends of the containing groove 25 are provided with insertion hole structures 26 communicated with the inner cavity of the coupler male end 2 to provide installation positions for the installation of the metal sheet, and the installation portion 24 passes through the insertion hole structures 26 and a grounding wire 27 penetrating through the inner cavity of the coupler male end 2 And connecting to each other, so that the metal sheet outside the male end 2 of the coupler is tightly attached and arranged in the accommodating groove 25.

As shown in fig. 3 and 7, the ground wire 27 is connected to the metal member 21 through a connection terminal 3, the connection terminal 3 includes a connection area 31 for clamping the ground wire 27, and a fixing area 32 fixedly connected to the metal member 21 through a tapping screw 33, through holes are provided on the mounting portion 24 of the metal sheet and the fixing area 32 of the connection terminal 3, the insertion terminal 22 is provided with a circular hole corresponding to the through hole, and the tapping screw 33 passes through the through hole and is fastened in the circular hole, so that the connection terminal 3, the metal member 21 and the insertion terminal 22 keep fixed relative positions, and the structure is simple and the installation is stable and reliable.

As a specific structural arrangement, an elastic contact 12 is arranged in an inner cavity of the coupler female end 1, when the coupler male end 2 is inserted into the coupler female end 1, the elastic contact 12 elastically abuts against two sides of the metal piece 21, the elastic contact 12 is connected with the grounding wire 27 in a welding manner, and when the coupler male end 2 is inserted into the coupler female end 1, the elastic contact 12 elastically abuts against two sides of the metal piece 21, so that the coupler male end 2 and the grounding wire 27 of the coupler female end 1 are electrically connected with each other, and the grounding function of the electric appliance is realized.

As shown in fig. 2, the elastic contact 12 is a U-shaped structure, two ends of the elastic contact are respectively provided with V-shaped protrusions 13 bent in opposite directions, the V-shaped protrusions 13 elastically press against two sides of the metal member 21, and when the inserting end 22 is inserted into the inner cavity of the coupler female end 1, the metal sheet will first press the V-shaped protrusions 13 to deform the same, so that the V-shaped protrusions 13 tightly press against two sides of the metal sheet by virtue of elastic acting force thereof, thereby ensuring reliability of ground connection.

As a specific structure setting, magnetic member 11 is the permanent magnet, be equipped with in the inner chamber of coupler female end 1 and be used for the installation magnetic member 11's mounting groove 14, for magnetic member 11 provides the mounted position, magnetic member 11 installs lie in when in mounting groove 14 in the U type of elastic contact 12 is bent in, and with live wire and zero line two the contact pin keeps certain safe distance, the security when improving the electrical apparatus and using.

As shown in fig. 2 and 4, an opening structure 15 for inserting the elastic contact 12 is disposed on the back surface of the coupler female end 1, a limit baffle 16 is detachably disposed at the opening structure 15, a limit channel 17 is formed between the limit baffle 16 and the side wall of the mounting groove 14, the elastic contact 12 is fixed in the limit channel 17 in a clamping manner, the elastic contact 12 is inserted into the coupler female end 1 from the opening structure 15, the bent end portion of the elastic contact 12 is pressed and clamped in the limit channel 17 between the limit baffle 16 and the mounting groove 14, and the elastic contact 12 is limited, so that the elastic contact 12 is kept fixed in the coupler female end 1 at a relative position, and the limit baffle 16 is fixed on the back surface of the coupler female end 1 through a bolt assembly 19.

Further, a limiting groove 18 is further arranged in the port of the coupler female end 1, when the elastic contact 12 is inserted into the coupler female end 1 from the opening structure 15, two ends of the elastic contact are inserted into the limiting groove 18, so that the two ends of the elastic contact 12 are limited, the direction of the U-shaped opening of the elastic contact 12 is consistent with the direction of the port opening of the coupler female end 1, and the inserting end 22 can be smoothly inserted into the U-shaped opening of the elastic contact 12.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The magnetic coupler comprises a coupler female end (1) and a coupler male end (2) which is inserted into the coupler female end (1) in a matched mode, and is characterized by further comprising a magnetic structure which is arranged between the coupler female end (1) and the coupler male end (2), wherein the magnetic structure comprises a magnetic piece (11) which is arranged in the coupler female end (1) and a metal piece (21) which is correspondingly arranged on one end of the coupler male end (2) and attracted by the magnetic piece (11), and when the coupler male end (2) is inserted into the coupler female end (1), the magnetic piece (11) is magnetically connected with the metal piece (21) so that the coupler male end (2) is tightly inserted into the coupler female end (1).

2. The magnetic coupler according to claim 1, wherein one end of the coupler male end (2) is a plug end (22) which is plugged into the port of the coupler female end (1), the metal piece (21) comprises a contact part (23) which is connected to the end of the plug end (22) and two side surfaces, and a mounting part (24) which is bent by the contact part (23) and is inserted into the coupler male end (2).

3. The magnetic coupler according to claim 2, wherein the metal piece (21) is a metal sheet structure with a rectangular cross section, the insertion end (22) is provided with a containing groove (25) suitable for containing the contact portion (23), and two ends of the containing groove (25) extend to the bottoms of the two side surfaces of the insertion end (22).

4. The magnetic coupler according to claim 3, wherein jack structures (26) communicated with the inner cavity of the coupler male end (2) are arranged at two ends of the accommodating groove (25), and the mounting part (24) penetrates through the jack structures (26) to be connected with a grounding wire (27) penetrating through the interior of the coupler male end (2).

5. A magnetic coupling according to claim 4, wherein the ground wire (27) is connected to the metal member (21) by a terminal (3), and the terminal (3) includes a terminal area (31) for holding the ground wire (27) and a fixing area (32) fixedly connected to the metal member (21) by a tapping screw (33).

6. The magnetic coupler according to any one of claims 1 to 5, wherein an elastic contact (12) is arranged in an inner cavity of the coupler female end (1), and when the coupler male end (2) is inserted into the coupler female end (1), the elastic contact (12) elastically presses against two sides of the metal piece (21).

7. The magnetic coupler according to claim 6, wherein the elastic contact (12) is of a U-shaped structure, two ends of the elastic contact are respectively provided with V-shaped protrusions (13) which are bent oppositely, and the V-shaped protrusions (13) are elastically pressed against two sides of the metal piece (21).

8. The magnetic coupler according to claim 7, wherein the magnetic member (11) is a permanent magnet, a mounting groove (14) for mounting the magnetic member (11) is formed in the inner cavity of the coupler female end (1), and the elastic contact (12) surrounds the magnetic member (11) mounted in the mounting groove (14).

9. The magnetic type coupler according to claim 8 is characterized in that an opening structure (15) for inserting the elastic contact (12) is formed in the back face of the coupler female end (1), a limiting baffle (16) is detachably arranged at the opening structure (15), a limiting channel (17) is formed between the limiting baffle (16) and the side wall of the mounting groove (14), and the elastic contact (12) is clamped and fixed in the limiting channel (17).

10. The magnetic coupler according to any one of claims 1-9, wherein a limit groove (18) is further formed at a port of the coupler female end (1), and two ends of the elastic contact (12) can be inserted into the limit groove (18).