Anti-static magnetic electrical connector structure

Abstract

Provided in the present invention is an anti-static magnetic electrical connector structure. Compared with existing magnetic electrical connector technology, the design incorporates the following three features: 1, a first negative electrode metal shielding ring and a second negative electrode metal shielding ring are added, and the first negative electrode metal shielding ring, the second negative electrode metal shielding ring and a female connector negative electrode circular magnet are all electrically connected to a negative electrode circuit of an electronic device plug; 2, the distances from the first negative electrode metal shielding ring and the second negative electrode metal shielding ring to an electrostatic source are shorter than the distances from a female connector positive electrode conductive ring and a female connector data conductive contact to the electrostatic source; and 3, the depth D2 of a non-negative-electrode terminal is greater than half of a negative electrode spacing D1. By incorporating said three features, when an electrostatic source approaches a magnetic female connector assembly from any direction or angle, electrostatic energy of the electrostatic source is directed to the nearest first negative electrode metal shielding ring, second negative electrode metal shielding ring or female connector negative electrode circular magnet, and then directly bypassed by means of a negative electrode circuit of an electronic device.

Description

A static-prevention magnetic electrical connector structure Technical Field

[0001] The present invention relates to the technical field of magnetic electrical connectors, and in particular to a static-proof magnetic electrical connector structure. Background Art

[0002] When using ordinary charging cables to charge electronic devices, people usually need to use both hands to complete the two actions of plugging or unplugging. The emergence of various magnetic charging cables, especially 360-degree circular magnetic cables, solves this problem and enables one-handed connection. Compared with ordinary charging cables, they are quite convenient to use. Technical issues

[0003] However, in previous practical use cases (as shown in Figure 1A), after the power supply end 2 of the magnetic charging cable is removed, the power receiving end 1 remains on the electronic device 3, with the electrical contacts of the power receiving end 2 exposed on the surface (as shown in Figure 1B, in the structure of existing magnetic charging cables, electrical contacts 109 and 112 are exposed outside the negative pole magnet 105, closer to the human body's finger-shaped static source 4 as shown in the figure). This makes it very easy for static electricity to come into contact with or approach the static source 4 and be discharged preferentially. Especially in autumn and winter, when the human body is prone to high levels of static electricity, the moment a mobile phone is touched, there is a high chance that the exposed electrical contacts will be discharged, causing high-voltage static electricity to enter the electronic device 3 and damage its internal sensitive components. In severe cases, when the power supply terminal 2 is reconnected, the damaged components may not function properly or fail to function properly, and the protection circuit in the power supply terminal 1 may not detect the abnormality and continue to supply power, resulting in heat accumulation and a greater accident (Note: Many electronic devices 3 or the power receiving terminal 1 in this case are equipped with electrostatic absorption suppression components, such as ESD diodes and other protection devices. When reasonable static electricity values ​​are applied to them, these protection devices will normally absorb these high voltage spikes, thereby protecting subsequent circuit equipment from damage, and returning to normal after the static electricity passes. However, electrostatic energy is often uncertain. When the electrostatic energy exceeds the rated value of the component, these protection devices may enter an uncontrollable state: for example, they may not be completely broken down to a short circuit, resulting in self-heating when the power is turned on again, or they may be completely broken down to an open circuit and lose protection for subsequent circuits, causing damage to other important components when secondary static electricity occurs).

[0004] Therefore, there is an urgent need for a safer electrostatic prevention type magnetic electrical connector structure to solve the above problems. Technical Solutions

[0005] In view of this, the present invention provides an electrostatically protected magnetic electrical connector structure to solve the problem in the prior art that magnetic connectors are easily attacked by static electricity, causing damage to electronic devices.

[0006] The technical solution of the present invention to solve the above technical problems is as follows:

[0007] A static-proof magnetic electrical connector structure includes: a magnetic female connector component 1 and a magnetic male connector component 2;

[0008] The magnetic female connector assembly 1 comprises an electronic device plug 101, a fixing resin 102, a flexible PCB 103, a female connector magnet outer sheath 104, a female connector negative circular magnet 105, a female connector first PCB 106, a first negative metal shielding ring 107, a female connector second PCB 108, a female connector positive conductive ring 109, a second negative metal shielding ring 110, an electrical isolation resin 111, and a female connector data conductive contact 112.

[0009] The female connector data conductive contact 112 is sequentially annularly wrapped with an electrical isolation resin 111 and a second negative metal shielding ring 110. The female connector data conductive contact 112 is concentrically fixed to the female connector second PCB 108 with the female connector positive conductive ring 109, concentrically fixed to the female connector first PCB 106 with the first negative metal shielding ring 107, and concentrically fixed to the flexible PCB 103 with the female connector negative circular magnet 105 annularly wrapped by the female connector magnet outer sheath 104. The female connector data conductive contact 112 is reinforced with a fixing resin 102. The flexible PCB 103 is fixed with an electronic device plug 101.

[0010] Through the flexible PCB 103, the first female PCB 106, and the second female PCB 108, the female data conductive contact 112 is electrically connected to the data circuit of the electronic device plug 101, and the female positive conductive ring 109 is electrically connected to the positive circuit of the electronic device plug 101; the first negative metal shielding ring 107, the second negative metal shielding ring 110, and the female negative circular magnet 105 are respectively electrically connected to the negative circuit of the electronic device plug 101;

[0011] The magnetic male connector assembly 2 is composed of a male connector outer decorative ring 206, a male connector negative circular magnet 201 disposed inside the male connector, a male connector ejector pin fixing rubber core 202, a male connector positive conductive ejector pin 203, a male connector data conductive ejector pin 204, a male connector PCB 205, and a male connector extension wire 207.

[0012] The male positive conductive pin 203 and the male data conductive pin 204 are respectively fixed in the holes of the male pin fixing rubber core 202, and are sequentially inserted into the male negative circular magnet 201, fixed on the male PCB 205, and electrically connected to the external power supply equipment through the male extension wire 207.

[0013] Furthermore, the distance between the first negative metal shielding ring 107 and the second negative metal shielding ring 110 and the electrostatic source 4 is smaller than the distance between the female positive conductive ring 109 and the female data conductive contact 112 and the electrostatic source 4, and the depth of the non-negative terminal is greater than half of the negative pole spacing.

[0014] Furthermore, when the magnetic female head component 1 and the magnetic male head component 2 are in the attracted state, the male head positive pole conductive pin 203 contacts the female head positive pole conductive ring 109 to achieve electrical connection, the male head data conductive pin 204 contacts the female head data conductive contact 112 to achieve electrical connection, and the male head negative pole circular magnet 201 contacts the female head negative pole circular magnet 105 to achieve electrical connection.

[0015] Furthermore, in the magnetic male connector assembly 2 , a conductive ejector pin or spring is provided at a position corresponding to the first negative metal shielding ring 107 or the second negative metal shielding ring 110 .

[0016] Furthermore, electrostatic suppression components or protection circuits are provided in the magnetic male head component 2 and / or the magnetic female head component 1 . Beneficial effects

[0017] The present invention provides a static-proof magnetic electrical connector structure. Compared to existing magnetic electrical connector technology, this design has the following three features: 1. A first negative metal shielding ring 107 and a second negative metal shielding ring 110 are added, and the first negative metal shielding ring 107, the second negative metal shielding ring 110, and the female negative circular magnet 105 are all electrically connected to the negative circuit of the electronic device plug 101; 2. The distance between the first negative metal shielding ring 107 and the second negative metal shielding ring 110 and the static electricity source 4 is smaller than the distance between the female positive conductive ring 109 and the female data conductive contact 112 and the static electricity source 4; 3. The non-negative terminal depth D2 is greater than half the negative pole spacing D1. By providing these three features, when a static source approaches the magnetic female connector assembly from any direction or angle, its static energy is directly directed into the first or second negative metal shielding ring, or the female connector's negative circular magnet, and then directly bypassed through the electronic device's negative circuit without damaging other components. This significantly enhances the safety and environmental adaptability of the magnetic connector, resolving the existing problem of magnetic connectors being susceptible to static electricity attacks, which can cause electronic device failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1A is a schematic diagram of an electronic device described in the background art for describing electrostatic attack;

[0019] FIG1B is a schematic diagram illustrating the positional relationship between the electrical terminal and the negative pole magnet described in the background art;

[0020] Figure 2A is a schematic diagram of the explosion of the magnetic female head assembly and the position relationship diagram of the components in this case;

[0021] FIG2B is a cross-sectional view of the magnetic female connector assembly in this case;

[0022] FIG3A is an exploded view of the magnetic male connector assembly and a diagram showing the relationship between component positions in this case;

[0023] FIG3B is a cross-sectional view of the magnetic male connector assembly in this case;

[0024] FIG4 is a cross-sectional view of the magnetic male connector and the magnetic female connector in the present embodiment in an engaged state;

[0025] FIG5 is a schematic diagram illustrating the positional relationship between the electrical terminal and the negative pole magnet in this case.

[0026] In the picture:

[0027] 1: Magnetic female connector assembly (also known as the power receiving end in the background technology)

[0028] 101: Electronic equipment plugs

[0029] 102: Fixing resin

[0030] 103: Flexible PCB

[0031] 104: Female magnet outer sheath

[0032] 105: Female negative pole circular magnet

[0033] 106: Female first PCB

[0034] 107: First negative metal shielding ring

[0035] 108: Female second PCB

[0036] 109: Female positive conductive ring

[0037] 110: Second negative metal shielding ring

[0038] 111: Electrical isolation resin

[0039] 112: Female data conductive contact

[0040] 2: Magnetic male connector (also known as the power supply terminal in the background technology)

[0041] 201: Male negative pole circular magnet

[0042] 202: Male thimble fixed rubber core

[0043] 203: Male positive conductive thimble

[0044] 204: Male data conductive thimble

[0045] 205: Male PCB

[0046] 206: Male outer decorative ring

[0047] 207: Male extension cable

[0048] 3: Electronic equipment

[0049] 4: Static power source

[0050] D1: Negative electrode spacing

[0051] D2: Depth of non-negative terminal. Best Mode for Carrying Out the Invention

[0052] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0053] The electrostatic prevention type magnetic electrical connector structure includes: a magnetic female connector component 1 and a magnetic male connector component 2;

[0054] As shown in FIG2A , the magnetic female connector assembly 1 comprises an electronic device plug 101, a fixing resin 102, a flexible PCB 103, a female connector magnet outer sheath 104, a female connector negative circular magnet 105, a female connector first PCB 106, a first negative metal shielding ring 107, a female connector second PCB 108, a female connector positive conductive ring 109, a second negative metal shielding ring 110, an electrical isolation resin 111, and a female connector data conductive contact 112.

[0055] The female connector data conductive contact 112 is sequentially annularly wrapped with the electrical isolation resin 111 and the second negative metal shielding ring 110. The female connector data conductive contact 112 is then concentrically fixed to the female connector second PCB 108 with the female connector positive conductive ring 109, concentrically fixed to the female connector first PCB 106 with the first negative metal shielding ring 107, and concentrically fixed to the flexible PCB 103 with the female connector negative circular magnet 105 annularly wrapped by the female connector magnet outer sheath 104. The final shape of the magnetic female connector assembly 1 is formed by reinforcing the fixation with the fixing resin 102. The electronic device plug 101 is fixed to the flexible PCB 103.

[0056] The flexible PCB 103, the first female PCB 106, and the second female PCB 108 function as electrical connections, respectively connecting the female data conductive contact 112 to the data circuit of the electronic device plug 101, and the female positive conductive ring 109 to the positive circuit of the electronic device plug 101; and the first negative metal shielding ring 107, the second negative metal shielding ring 110, and the female negative circular magnet 105 to the negative circuit of the electronic device plug 101. (Note: The female magnet outer sheath 104 primarily protects the female negative circular magnet 105, preventing it from breaking. It is also made of conductive metal, so it and the female negative circular magnet 105 can be considered the same conductive component. For simplicity, only the function of the female negative circular magnet 105 is described here.)

[0057] As shown in FIG3A , the magnetic male connector assembly 2 is composed of a male connector outer decorative ring 206 and a male connector negative circular magnet 201 disposed therein, a male connector ejector pin fixing rubber core 202, a male connector positive conductive ejector pin 203, a male connector data conductive ejector pin 204, a male connector PCB 205, and a male connector extension wire 207.

[0058] 3A and 3B , the male connector's positive conductive pin 203 (which can be composed of multiple pins) and the male connector's data conductive pin 204 are respectively fixed in the holes of the male connector's pin fixing rubber core 202, and are sequentially inserted into the male connector's negative circular magnet 201 and fixed to the male connector PCB 205. They are electrically connected to the external power supply equipment through the male connector's extension wire 207, and the male connector's outer decorative ring 206 serves as a shape fixation and exterior decorative component. Modes for Carrying Out the Invention

[0059] In another embodiment of the present invention, as shown in FIG5 , the distance between the first negative metal shielding ring 107 and the second negative metal shielding ring 110 and the electrostatic source 4 is smaller than the distance between the female positive conductive ring 109 and the female data conductive contact 112 and the electrostatic source 4 , and as also shown in FIG5 , the depth of the non-negative terminal is greater than half of the negative pole spacing.

[0060] In another embodiment of the present invention, as shown in Figure 4, when the magnetic female head component 1 and the magnetic male head component 2 are in the attracted (electrically connected) state, the male head positive conductive ejector pin 203 contacts the female head positive conductive ring 109 to achieve electrical connection, the male head data conductive ejector pin 204 contacts the female head data conductive contact 112 to achieve electrical connection, and the male head negative pole circular magnet 201 contacts the female head negative pole circular magnet 105 to achieve electrical connection.

[0061] In another embodiment of the present invention, to increase the current carrying capacity, a conductive pin or spring is provided in the magnetic male connector assembly 2 at a position corresponding to the first negative metal shielding ring 107 or the second negative metal shielding ring 110, so that when the magnetic female connector assembly 1 is attracted, the conductive pin or spring contacts the first negative metal shielding ring 107 or the second negative metal shielding ring 110 for electrical conduction.

[0062] Furthermore, in order to meet actual data communication needs, data conductive pins or data conductive contacts can be increased or decreased in the magnetic male head component 2 and the magnetic female head component 1 according to this principle.

[0063] In another embodiment of the present invention, electrostatic suppression components or protection circuits are provided in the magnetic male connector assembly 2 and / or the magnetic female connector assembly 1 to further increase the safety of the magnetic connector.

[0064] 2B and 5 , the electrostatic prevention magnetic electrical connector structure of the present invention has the following three features compared to existing magnetic electrical connector technology:

[0065] 1. A first negative metal shielding ring 107 and a second negative metal shielding ring 110 are added, and the first negative metal shielding ring 107, the second negative metal shielding ring 110 and the female negative circular magnet 105 are all electrically connected to the negative line of the electronic device plug 101;

[0066] 2. The distance between the first negative metal shielding ring 107 and the second negative metal shielding ring 110 and the static source 4 is smaller than the distance between the female positive conductive ring 109 and the female data conductive contact 112 and the static source 4;

[0067] 3. As shown in FIG5 , the non-negative terminal depth D2 is greater than half of the negative electrode spacing D1.

[0068] Relying on the above three features, the working principle of the present invention is: when the static power source 4 approaches the magnetic female connector assembly 1 from any direction or angle, its static electricity energy will be introduced into the first negative metal shielding ring 107 or the second negative metal shielding ring 110 or the female negative circular magnet 105 nearby, and then directly bypassed through the negative pole line of the electronic device 3 without causing damage to other parts, greatly increasing the safety and environmental adaptability of the magnetic connector.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A static-proof magnetic electrical connector structure, characterized in that: include: Magnetic female head component 1 and magnetic male head component 2; The magnetic female head assembly 1 is composed of an electronic device plug 101, a fixing resin 102, a soft PCB 103, a female head magnet outer sheath 104, a female head negative pole circular magnet 105, a female head first PCB 106, a first negative pole metal shielding ring 107, a female head second PCB 108, a female head positive pole conductive ring 109, a second negative pole metal shielding ring 110, an electrical isolation resin 111, and a female head data conductive contact 112; After the female data conductive contact 112 is successively annularly wrapped by the electrical isolation resin 111 and the second negative metal shielding ring 110, it is respectively fixed on the female second PCB 108 in a concentric manner with the female positive conductive ring 109, fixed on the female first PCB 106 in a concentric manner with the first negative metal shielding ring 107, and fixed on the flexible PCB 103 in a concentric manner with the female negative circular magnet 105 annularly wrapped by the female magnet outer sheath 104, and is reinforced by the fixing resin 102, and the electronic device plug 101 is fixed on the flexible PCB 103; Through the flexible PCB 103, the first female PCB 106, and the second female PCB 108, the female data conductive contact 112 is electrically connected to the data line of the electronic device plug 101, and the female positive conductive ring 109 is electrically connected to the positive line of the electronic device plug 101; the first negative metal shielding ring 107, the second negative metal shielding ring 110 and the female negative circular magnet 105 are electrically connected to the negative line of the electronic device plug 101 respectively; The magnetic male connector assembly 2 is composed of a male connector outer decorative ring 206, a male connector negative pole circular magnet 201 disposed inside the male connector, a male connector ejector pin fixing rubber core 202, a male connector positive pole conductive ejector pin 203, a male connector data conductive ejector pin 204, a male connector PCB 205, and a male connector extension wire 207. The male positive conductive pin 203 and the male data conductive pin 204 are respectively fixed in the holes of the male pin fixing rubber core 202, and are sequentially inserted into the male negative circular magnet 201, fixed on the male PCB 205, and electrically connected to the external power supply device through the male extension wire 207.

2. The electrostatically-preventable magnetic electrical connector structure according to claim 1, characterized in that: The distance between the first negative metal shielding ring 107 and the second negative metal shielding ring 110 and the static source 4 is smaller than the distance between the female positive conductive ring 109 and the female data conductive contact 112 and the static source 4, and the non-negative terminal depth is greater than half of the negative pole spacing.

3. The electrostatically-preventable magnetic electrical connector structure according to claim 1, characterized in that: When the magnetic female head component 1 and the magnetic male head component 2 are in the attracted state, the male head positive conductive pin 203 contacts the female head positive conductive ring 109 to achieve electrical connection, the male head data conductive pin 204 contacts the female head data conductive contact 112 to achieve electrical connection, and the male head negative pole circular magnet 201 contacts the female head negative pole circular magnet 105 to achieve electrical connection.

4. The electrostatically-preventable magnetic electrical connector structure according to claim 1, characterized in that: In the magnetic male connector assembly 2 , a conductive ejector pin or a spring is provided at a position corresponding to the first negative metal shielding ring 107 or the second negative metal shielding ring 110 .

5. The static electricity prevention type magnetic electrical connector structure according to claim 1, characterized in that: An electrostatic suppression component or a protection circuit is provided in the magnetic male head component 2 and / or the magnetic female head component 1.

Images