CN216529641U

CN216529641U - Self-locking type magnetic connector

Info

Publication number: CN216529641U
Application number: CN202122515374.5U
Authority: CN
Inventors: 宋泽铭; 田文倩; 何蕾
Original assignee: Shenzhen Jizhan Technology Co ltd; Jiaxing Jizhan Technology Co ltd
Current assignee: Shenzhen Jizhan Technology Co ltd; Jiaxing Jizhan Technology Co ltd
Priority date: 2021-10-19
Filing date: 2021-10-19
Publication date: 2022-05-13
Anticipated expiration: 2031-10-19

Abstract

The utility model discloses a self-locking magnetic connector, which comprises a connector female end and a connector male end, wherein the connector female end is provided with a first shell, the first shell is provided with an annular groove matched with the connector male end, the bottom of the annular groove is provided with a first magnetic absorption part, the side wall of the annular groove is provided with an elastic limiting part, and one side of the annular groove is provided with a sliding chute and forms a guide structure; the male end of the connector is provided with a second shell, the second shell is provided with a columnar bulge matched with the annular groove of the first shell, and the columnar bulge is provided with a second magnetic part; the second magnetic part and the elastic limiting part form a buckle structure, so that the second shell at the male end of the connector can only slide out of the annular groove along the direction of the guide structure. This application is through additionally setting up the spout and forming guide structure on the female end of connector, can prevent that the female end of connector from sliding the aversion or directly with the public end separation of connector for this magnetism inhales the female end of connector and the public end of connector and can only follow specific orientation separation after adsorbing.

Description

Self-locking type magnetic connector

Technical Field

The utility model belongs to the technical field of electric connectors, and particularly relates to a magnetic connector capable of self-locking, which can be used in scenes such as intelligent wearing, portable medical treatment, small household appliances and the like.

Background

The CONNECTOR, i.e. the CONNECTOR, generally referred to as an electrical CONNECTOR, functions very simply: the circuit is connected to a blocked or non-connected circuit to conduct current and realize a predetermined function.

The magnetic connector is a connector which is convenient to use and is also a connector commonly used in the current electronic products. Existing magnetically-attached connectors typically include: connector main part (including connector public end and connector female end), the several is used for signal or electric energy transmission's signal needle, connect insulator and one or more magnetic substance that is used for magnetic adsorption between connector main part and signal needle, connector public end and connector female end are inhaled through magnetism and are adsorbed, the cooperation is inserted in the formation, the connector structure is complicated to magnetism of this kind of structural style, it can only realize through the volume that increases the magnetic substance to realize great pull-out power, processing packaging efficiency is low and with high costs, can not satisfy the requirement that the user is inhaled the miniaturized high pull-out power of connector and low cost to magnetism gradually.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary of embodiments of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that the following summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is discussed later.

In view of the above-mentioned deficiencies of the prior art, the present invention aims to provide a self-locking magnetic connector, which aims to solve the problems of low processing and assembling efficiency and high cost in the prior art, and to meet the requirements of miniaturization and high drawing force of the magnetic connector.

In order to achieve the purpose, the utility model provides the following technical scheme:

a self-locking magnetic connector comprises a female connector end and a male connector end, wherein,

the connector female end is provided with a first shell, the first shell is provided with an annular groove matched with the connector male end, the bottom of the annular groove is provided with a first magnetic suction part, the side wall of the annular groove is provided with an elastic limiting part, and one side of the annular groove is provided with a sliding groove and forms a guide structure;

the male end of the connector is provided with a second shell, the second shell is provided with a columnar bulge matched with the annular groove of the first shell, and the columnar bulge is provided with a second magnetic part;

the second magnetic part and the elastic limiting part form a buckle structure, so that the second shell at the male end of the connector can only slide out of the annular groove along the direction of the guide structure;

the first magnetic part and the second magnetic part are correspondingly arranged and electrically connected.

This application is through additionally setting up the spout and forming guide structure on the female end of connector, and it can prevent as physics limit structure that the female end of connector from sliding to shift or directly with the public end separation of connector, when reinforcing connection structure's reliability for this magnetism inhales the female end of connector and the public end of connector and can only follow specific direction separation after adsorbing.

The elastic limiting part is used for positively locking the male end of the connector, preferably, the elastic limiting part is realized by adopting one or more spring pins, and the specific number can be set according to practical application. In practical use, the elastic limiting part can be realized by adopting two spring pin structures, the spring pin structure can be a circular arc (hemispherical) protrusion, or can be realized by adopting an inclined sliding surface fixture block structure, and the positive locking effect can be realized by ensuring the structural shape, position and size of the elastic limiting part to be matched with the magnetic suction connector male head.

Preferably, the columnar protrusion of the second shell has a first cylinder, a second cylinder and a third cylinder which are arranged in sequence, and the diameter of the second cylinder is smaller than that of the first cylinder and that of the third cylinder. The columnar bulge of the second shell is integrally of an I-shaped structure, and the columnar bulge and the elastic limiting part of the first shell form a buckling structure.

Preferably, the outer fringe of first cylinder is the chamfer structure, and the chamfer structure of its design also is round platform structure, and the bump that the spout structure of this round platform structure cooperation connector female end and the formation of the spring needle (the spacing portion of elasticity) on the lateral wall of annular groove, these three structure cooperations use for can only follow specific direction separation after this magnetism is inhaled the connector, can't separate from the front.

Preferably, the outer fringe of third cylinder is chamfer structure, and after the connector male end of connector was inserted into the female end of connector to the magnetism, because the chamfer structure of third cylinder, can easily prop the spring pin (the spacing portion of elasticity) extrusion of connector female end and strut.

Preferably, a concave part is arranged at the center of the bottom of the sliding chute, and the concave part is connected with a copper sheet; the first shell extends towards one side to form a first connecting part, a lead is arranged in the first connecting part, the lead is coated by the first shell and is electrically connected with the copper sheet, and the copper sheet is used as the anode of the female end of the connector; the bottom of the sliding groove is further provided with a first spring needle which is used as a negative electrode of the female end of the connector and is located on a connecting line of the concave part and the first connecting part.

Preferably, a second spring pin is arranged at the center of the third cylinder, the second spring pin is used as the positive pole of the male end of the connector, and the annular plane surrounding the second spring pin on the third cylinder is used as the negative pole of the male end of the connector; first magnetism portion of inhaling with second magnetism portion of inhaling makes the anodal of female end of connector and the anodal contact of the public end of connector after connecting, and the negative pole of the female end of connector and the negative pole contact of the public end of connector to realize the electricity and connect.

Preferably, the heights of the second cylinder and the third cylinder are matched with the depth of the sliding groove of the annular groove at the female end of the connector, so that the male end of the connector is more reliably connected with the positive electrode and the negative electrode of the female end of the connector when the positive electrode and the negative electrode are in contact.

As another possible solution, the first housing is further sleeved with an annular sheet in the circumferential direction, and the annular sheet is used for fixing the connector female seat with a product to be used.

The self-locking magnetic connector realized by the scheme improves the structures of the male end and the female end of the magnetic connector, performs positioning through magnetic attraction, places two (or more) spring pins on the inner wall of the female seat for fixing and limiting, is provided with a chute on the side surface, is provided with a chamfer at the end head of the male end, is smaller than the diameter of the lower part of the chamfer, and is matched with the spring pins at the female end for use, so that the male end can only be drawn out from one direction of the chute. It adopts the physical structure design, and is better than current processing packaging efficiency, need not to use bulky magnet can realize the demand of high drawing force, has reduced material cost and magnetism simultaneously and has inhaled the volume of connector, makes magnetism inhale the connector more pleasing to the eye, and the application scene is more extensive.

Drawings

The utility model may be better understood by referring to the following description in conjunction with the accompanying drawings, in which like reference numerals are used throughout the figures to indicate like or similar parts. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate preferred embodiments of the present invention and, together with the detailed description, serve to further explain the principles and advantages of the utility model. In the drawings:

FIG. 1 is a side view of a female end of a connector of the magnetic connector of the present embodiment;

FIG. 2a is a schematic front view of a female end of the connector of the magnetic connector of the present embodiment;

FIG. 2b is a schematic back view of a female end of the magnetic connector of the present embodiment;

FIG. 3 is a schematic axial view of the male end of the connector of the magnetic connector of the present embodiment;

FIG. 4 is a schematic view of a female connector end of another embodiment of a magnetically attractive connector.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings. Elements and features depicted in one drawing or one embodiment of the utility model may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and description omit representation and description of components and processes that are not relevant to the present invention and that are known to those of ordinary skill in the art for the sake of clarity.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to 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.

The problem to be solved by this embodiment is mainly: the magnetic connector is miniaturized, low in cost and easy to assemble under the requirement of high drawing force, and the requirement of a user for attractiveness and comfort of the magnetic connector is met.

To this end, referring to fig. 1, fig. 2a, fig. 2b and fig. 3, the self-locking magnetic connector of the present embodiment includes a female connector end 100 and a male connector end 200.

A schematic view of the connector female end 100 is shown in fig. 1, 2a and 2 b. Fig. 1 is a side surface of a female connector end 100, which is composed of 4 parts, a first part is a first housing 110 of a cylindrical structure for covering a wire, a second part is an annular sheet 108 with a larger diameter for fixing a female connector seat with a product, a third part is a first magnetic attraction part 103 for attracting the female connector end 100 and a male connector end 200, and a conductive pogo pin is arranged inside the third part; the fourth portion is a first connection portion 111 connected to the first housing 110.

Specifically, the female connector end 100 has a first housing 110, the first housing 110 is provided with an annular groove 102 matching with the male connector end 200, and the bottom of the annular groove 102 is provided with a first magnetic attraction portion 103. To describe the first magnetic part 103 specifically, referring to the schematic view of the front surface (i.e. the surface that is attracted and combined with the magnetic connector male end 200) of the magnetic connector female end 100 of fig. 2a, the side wall of the annular groove 102 is provided with an elastic limiting part 104, and one side of the annular groove 102 is provided with a sliding groove 105 to form a guiding structure; the elastic limiting part 104 is used for positively locking the male end 200 of the connector, and in this embodiment, the elastic limiting part 104 is implemented by 2 spring pins, and the two spring pins are located in the middle of the side surface and are used for magnetically attracting the male end of the connector from the positive locking state, but can slide out from the side surface.

A concave part is arranged at the center of the bottom of the sliding groove 105, and the concave part is connected with a copper sheet 106; the first shell 110 extends to one side to form a first connecting part 111, a lead is arranged in the first connecting part 111, the lead is covered by the first shell 110 and is electrically connected with the copper sheet 106, and the copper sheet 106 is used as the anode of the female terminal 100 of the connector; the bottom of the sliding slot 105 is further provided with a first spring pin 107, and the first spring pin 107 is used as a negative electrode of the female terminal 100 of the connector and is located on a connecting line of the copper sheet 106 of the concave part and the first connecting part 111.

In this embodiment, a circular groove with a recess of about 0.5mm is formed at the center of the circle at the bottom of the sliding groove 105, the circular groove serves as a recessed portion, a copper sheet 106 is connected in the recessed portion, and the other side of the copper sheet 106 is connected with the first connecting portion 111 through a wire and serves as a positive pole of the magnetic connector. The first pogo pin 107 is disposed on the same straight line between the center of the bottom of the sliding slot 105 and the first connection portion 111, and is a negative pole of the female terminal 100.

The annular sheet 108 is disposed on the outer periphery of the first housing 110, and the annular sheet 108 is used to fix the female connector with a product. To further illustrate the annular sheet 108, refer to the back of the female connector end 100 of fig. 2b (i.e., the side that is adhesively engaged with the male connector end 200) and the back of the female connector end 100 of fig. 3. In addition, in the present embodiment, since the first connecting portion 111 and the annular sheet 108 are on the same horizontal plane, the notch processing is performed, and in practice, this limitation is not required as long as the fixing function is ensured.

This application is through additionally setting up spout 105 and forming guide structure on connector female end 100, and it can prevent as physics limit structure that connector female end 100 from sliding the aversion or directly with the public end 200 separation of connector, when reinforcing connection structure's reliability for this magnetism inhale connector female end 100 and the public end 200 of connector adsorb after only can follow specific direction and separate.

Fig. 3 is an axonometric view of the male end 200 of the connector, the appearance structure mainly includes three parts, the first part is the second connecting portion 201, the second part is the second casing 210, the second casing is used for cladding the wire and other electronic components, the cladding one layer material is connected with the second connecting portion 201, the function of pulling prevention is played, the third part is the second magnetic part 202, the connecting part of the male end 200 of the connector and the female end of the connector can be connected with the female end to form an electric connection or a signal connection.

Specifically, referring to fig. 3, the male connector end 200 has a second housing 210, a cylindrical protrusion 220 is disposed on the second housing 210 and is matched with the annular groove 102 of the first housing 110, and the second magnetic attraction portion 202 in this embodiment is disposed on the cylindrical protrusion 220. The second magnetic part 202 and the elastic limiting part 104 form a snap structure, so that the second shell 210 of the male connector end 200 can only slide out of the annular groove 102 along the direction of the guide structure; the first magnetic attraction part 103 and the second magnetic attraction part 202 are correspondingly arranged and electrically connected.

Specifically, in the present embodiment, the columnar protrusion 220 of the second shell 210 has a first cylinder 221, a second cylinder 222 and a third cylinder 223 which are sequentially arranged, and the diameter of the second cylinder 222 is smaller than the diameter of the first cylinder 221 and the diameter of the third cylinder 223. The cylindrical protrusion 220 of the second housing 210 is integrally formed as an i-shaped structure, and forms a snap-fit structure with the elastic limiting portion 104 of the first housing 110. The outer edge of the first cylinder 221 is a chamfer structure, the designed chamfer structure is a circular truncated cone structure, the circular truncated cone structure is matched with the sliding groove 105 structure of the female end 100 of the connector and the salient point formed by the spring needle (the elastic limiting part 104) on the side wall of the annular groove 102, and the three structures are matched for use, so that the magnetic connector can only be separated from a specific direction after being adsorbed, and cannot be separated from the front. The outer edge of the third cylinder 223 is a chamfer structure, and after the male connector end 200 of the magnetic connector is inserted into the female connector end 100, the spring pin (the elastic limiting part 104) of the female connector end 100 can be easily squeezed and spread due to the chamfer structure of the third cylinder 223.

A second spring pin 203 is arranged at the central position of the third cylinder 223, the second spring pin 203 is used as the anode of the male connector end 200, and the annular plane surrounding the second spring pin 203 on the third cylinder 223 is used as the cathode of the male connector end 200; after the first magnetic part 103 and the second magnetic part 202 are connected, the positive pole of the female connector 100 is in contact with the positive pole of the male connector 200, and the negative pole of the female connector 100 is in contact with the negative pole of the male connector 200, so that electrical connection is realized.

In addition, the heights of the second cylinder 222 and the third cylinder 223 are matched with the depth of the sliding groove 105 of the annular groove 102 of the female connector end 100, so that the male connector end 200 and the female connector end 100 are connected more reliably when the positive and negative electrodes are in contact.

As can be seen from the above, the columnar protrusion 220 is divided into three cylinders, a first cylinder 221, a second cylinder 222 and a third cylinder 223, the first cylinder 221 is a cylinder in contact with the second housing 210, and has a chamfer to reinforce the portion of the male end protruding head, so as to improve strength; the third cylinder 223 is a cylinder with a diameter larger than that of the second cylinder 222 and has a chamfer, when the male end 200 of the magnetic connector is inserted into the female end, since the third cylinder 223 has a chamfer, the spring pin at the female end can be easily squeezed and spread, and then the spring pin is located at the tail of the third cylinder 223, since the tail of the third cylinder 223 is a plane, when the magnetic connector is subjected to a positive external pulling force, the spring pin is not squeezed, so that the magnetic connector plays a role of positively locking the male end 200 of the magnetic connector, the spring pin is located at the center of the front circle of the third cylinder 223, which is a positive pole of the magnetic connector and is connected with a positive pole of the female end 100 of the magnetic connector, and the outer ring is a negative pole of the magnetic connector and is connected with a negative pole of the magnetic connector, the height of the second cylinder 222 and the third cylinder 223 matches with the depth of the chute 105 of the female end 100 of the magnetic connector, so that the positive pole and the negative pole of the female end of the male end are contacted, and realizing the electrical connection.

In the second housing 210 of this embodiment, since the male end 200 of the connector needs to be embedded in the product, the annular groove processing is performed, and this limitation may not be actually performed, as long as it is ensured that the wire and the electronic component are fixed and waterproof.

The elastic limiting portion 104 of the present embodiment is implemented by using two pogo pins, and the pogo pins are configured by using arc-shaped (hemispherical) protrusions.

In another embodiment, referring to fig. 4, the elastic limiting portion 104 is implemented by three pogo pins, and the pogo pins are implemented by an inclined sliding surface fixture structure. In addition, the spring needle can be realized by other structures as long as the structural shape, position and size of the elastic limiting part 104 at the position are matched with the magnetic connector male head, and the function of locking the front surface can be achieved.

Through the scheme, the structure of the male end and the female end of the connector is changed through magnetic attraction, the connector is positioned through magnetic attraction, the two (or more) spring pins are placed on the inner wall of the female end of the connector and are fixed and limited, the side surface of the connector is provided with the chute, the end head of the male end is provided with the chamfer, the diameter of the cylinder is smaller than the diameter of the lower part of the chamfer, and the cylinder is matched with the spring pins at the female end for use, so that the male end can only be drawn out from one direction of the chute. Adopt above-mentioned physical structure design, it is better than current processing packaging efficiency, need not to use bulky magnet can realize the demand of high drawing force, reduced material cost and magnetism simultaneously and inhaled the volume of connector, make magnetism inhale the connector more pleasing to the eye, the application scene is more extensive.

While the present invention has been disclosed above by the description of specific embodiments thereof, it should be understood that all of the embodiments and examples described above are illustrative and not restrictive. Various modifications, improvements and equivalents of the utility model may be devised by those skilled in the art within the spirit and scope of the appended claims. Such modifications, improvements and equivalents are also intended to be included within the scope of the present invention.

Claims

1. The utility model provides a connector is inhaled to self-locking-type magnetism, includes female end of connector and connector public end, its characterized in that:

2. The self-locking magnetic connector of claim 1, wherein: the columnar bulge of the second shell is provided with a first cylinder, a second cylinder and a third cylinder which are sequentially arranged, and the diameter of the second cylinder is smaller than that of the first cylinder and that of the third cylinder; the columnar bulge of the second shell is integrally of an I-shaped structure, and the columnar bulge and the elastic limiting part of the first shell form a buckling structure.

3. The self-locking magnetic connector of claim 2, wherein: the outer edge of the first cylinder is of a chamfer angle structure.

4. The self-locking magnetic connector of claim 2, wherein: the outer edge of the third cylinder is of a chamfer angle structure.

5. The self-locking magnetic connector of claim 2, wherein: a concave part is arranged at the center of the bottom of the sliding chute and connected with a copper sheet; the first shell extends towards one side to form a first connecting part, a lead is arranged in the first connecting part, the lead is coated by the first shell and is electrically connected with the copper sheet, and the copper sheet is used as the anode of the female end of the connector; the bottom of the sliding groove is further provided with a first spring needle which is used as a negative electrode of the female end of the connector and is located on a connecting line of the concave part and the first connecting part.

6. The self-locking magnetic connector of claim 5, wherein: a second spring needle is arranged at the center of the third cylinder and serves as the anode of the male end of the connector, and an annular plane surrounding the second spring needle on the third cylinder serves as the cathode of the male end of the connector; first magnetism portion of inhaling with second magnetism portion of inhaling makes the anodal of female end of connector and the anodal contact of the public end of connector after connecting, and the negative pole of the female end of connector and the negative pole contact of the public end of connector to realize the electricity and connect.

7. The self-locking magnetic connector of claim 2, wherein: the heights of the second cylinder and the third cylinder are matched with the depth of a sliding groove of the annular groove at the female end of the connector.

8. The self-locking magnetic connector of claim 1, wherein: the elastic limiting part is realized by one or more spring pins.

9. The self-locking magnetic connector of claim 8, wherein: the structure of the spring needle is an arc-shaped bulge or an inclined sliding surface fixture block structure.

10. The self-locking magnetic connector of claim 1, wherein: the circumference of the first shell is also sleeved with an annular sheet, and the annular sheet is used for fixing the connector female seat with a used product.