Arcing prevention device for conductive contact of power supply

Abstract

The utility model relates to the field of conductive contacts, and discloses a power supply conductive contact arcing prevention device, which comprises a power supply access port arranged at an external circuit interface and a power supply output port arranged at an internal output end of a power supply, and when the power supply access port is connected with the power supply output port, current conduction is formed; the surface of the power supply output port is provided with a plurality of insertion ends used for being inserted into the power supply access ports, the surface of each power supply access port is provided with jacks corresponding to the insertion ends, and when the insertion ends are inserted into the jacks and abut against first conductive contacts arranged in the jacks, the power supply access ports and the power supply output port form current conduction. The surface of the first conductive contact is designed to be of an arc-shaped structure, so that a larger contact area and more uniform contact pressure can be generated when the insertion end is in contact with the first conductive contact, the contact resistance is reduced, and the possibility of heat generation and arc formation is reduced.

Description

Technical Field

[0001] The utility model relates to the field of conductive contacts, in particular to an arc-preventing device for conductive contacts of a power source. Background Art

[0002] In existing electrical systems, power supply conductive contacts (such as the connection between the contactor and the copper busbar) usually adopt a planar contact method. Although this contact method is simple and easy to use, it is easy to generate arcs at the moment when the conductive contacts are closed and opened, especially in high current or high voltage environments. The arcs will not only accelerate the loss of conductive contact materials and shorten the service life of the equipment, but may also cause safety hazards such as fire. Therefore, it is particularly important to find a solution that can effectively reduce the arcing phenomenon of conductive contacts. Utility Model Content

[0003] The utility model provides a device for preventing arcing of conductive contacts of a power supply, which overcomes the shortcomings described in the background technology.

[0004] The technical solution adopted by the utility model to solve its technical problem is:

[0005] A device for preventing arcing of conductive contacts of a power supply comprises a power supply access port installed at an external circuit interface and a power supply output port installed at an internal output end of the power supply. When the power supply access port is connected to the power supply output port, current conduction is formed.

[0006] The surface of the power output port is provided with a plurality of insertion ends for inserting into the power input port, and the surface of the power input port is provided with sockets corresponding to the insertion ends. When the insertion ends are inserted into the sockets and abut against the first conductive contacts provided in the sockets, the power input port and the power output port form current conduction;

[0007] The surface of the first conductive contact is an arc-shaped structure, and corresponding grooves are provided at corresponding positions of the insertion end and the first conductive contact.

[0008] A preferred technical solution, the insertion end includes a connecting plug, the end of the connecting plug is provided with a second conductive contact abutting against the first conductive contact, the groove corresponding to the insertion end and the first conductive contact is provided on the side of the second conductive contact facing the first conductive contact, the edge of one end of the second conductive contact facing the first conductive contact is provided with an arc guide, the arc guide is composed of a straight portion and a bent portion, the bent portion is connected to the second conductive contact through the straight portion, and the straight portion and the second conductive contact and the connecting end of the bent portion form a bending angle respectively;

[0009] The bent portion is bent toward the direction of connecting the insert strip.

[0010] A preferred technical solution is that the outer sides of the second conductive contact and the arc guide portion are wrapped with an insulating layer, the side of the second conductive contact facing the first conductive contact and the side of the straight portion facing the first conductive contact are both protruding from the surface of the insulating layer, and the cross-sectional size of the insulating layer is adapted to the cross-sectional size of the socket;

[0011] A fastening shell is also provided outside the connecting strip, and a gap is provided between the fastening shell and the connecting strip. The size of the gap is adapted to the wall thickness between the socket and the surface of the power access port. Clamp holes are respectively provided on both sides of the power access port, and fixing protrusions are respectively provided at corresponding positions of each clamp hole in the fastening shell. When the power output port is connected to the power access port, the fixing protrusions are embedded in the clamp holes.

[0012] Compared with the prior art, this technical solution has the following advantages:

[0013] When the power access port is connected to the power output port, the insertion end is inserted into the socket and abuts against the first conductive contact provided in the socket, forming current conduction. Since the surface of the first conductive contact is designed as an arc-shaped structure, this design enables the insertion end and the first conductive contact to generate a larger contact area and more uniform contact pressure when in contact, thereby reducing contact resistance and reducing the possibility of heat generation and arc formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 This is an overall diagram of the utility model.

[0016] Figure 2 for Figure 1 Schematic diagram of the decomposition.

[0017] Figure 3 for Figure 2 The enlarged schematic diagram of point a in FIG.

[0018] In the figure: power input port 1, power output port 2;

[0019] Socket 11, first conductive contact 12, card hole 13;

[0020] The connecting strip 21 , the second conductive contact 211 , the insulating layer 212 , the fastening shell 22 , and the fixing protrusion 221 . DETAILED DESCRIPTION

[0021] like Figures 1 to 3As shown, the utility model proposes a power supply conductive contact arcing prevention device, comprising a power supply access port 1 installed on an external circuit interface and a power supply output port 2 installed on an internal output end of a power supply. When the power supply access port 1 is connected to the power supply output port 2, current conduction is formed. The surface of the power supply output port 2 is provided with a plurality of insertion ends for inserting into the power supply access port 1, and the surface of the power supply access port 1 is provided with a socket 11 corresponding to the insertion end. When the insertion end is inserted into the socket 11 and abuts against a first conductive contact 12 provided in the socket 11, current conduction is formed between the power supply access port 1 and the power supply output port 2. The surface of the first conductive contact 12 is an arc-shaped structure, and corresponding grooves are provided at the corresponding positions of the insertion end and the first conductive contact 12.

[0022] When the power input port 1 is connected to the power output port 2, the insertion end is inserted into the socket 11 and contacts the first conductive contact 12 provided in the socket 11, so that current conduction is formed. Since the surface of the first conductive contact 12 is designed as an arc-shaped structure, this design enables the insertion end and the first conductive contact 12 to generate a larger contact area and a more uniform contact pressure when in contact, thereby reducing contact resistance and reducing the possibility of heat generation and arc formation;

[0023] The power supply conductive contact arcing prevention device of the utility model significantly reduces the possibility of arcing when the conductive contacts are closed and opened through a unique structural design, thereby effectively reducing the loss of conductive contact materials, extending the service life of the equipment, and greatly reducing safety hazards such as fire.

[0024] Further, the insertion end includes a connecting plug 21, and the end of the connecting plug 21 is provided with a second conductive contact 211 abutting against the first conductive contact 12. The groove corresponding to the insertion end and the first conductive contact 12 is provided on the side of the second conductive contact 211 facing the first conductive contact 12. This groove corresponds to the arc-shaped structure of the first conductive contact 12, which helps to achieve more stable contact and reduce arcing. The edge of one end of the second conductive contact 211 facing the first conductive contact 12 is provided with an arc guide portion, and the arc guide portion is composed of a straight portion and a bent portion. This design helps to guide the arc that may be generated. The arc is prevented from directly impacting the surface of the conductive contact, thereby reducing the damage of the arc to the contact. The bent portion is connected to the second conductive contact 211 through the straight portion. The straight portion forms a bending angle with the second conductive contact 211 and the connecting end of the bent portion respectively. The bent portion is bent toward the direction of the connecting plug 21. In particular, the bent portion is bent toward the direction of the connecting plug 21. This design enables the arc to be guided to a relatively safe direction when it is generated, that is, toward the inside of the connecting plug 21, rather than directly spraying to the outside of the conductive contact, thereby further reducing the risk of safety hazards such as fire caused by the arc.

[0025] A preferred technical solution, the outer side of the second conductive contact 211 and the arc guide portion is wrapped with an insulating layer 212, the side of the second conductive contact 211 facing the first conductive contact 12 and the side of the straight portion facing the first conductive contact 12 are both protruding from the surface of the insulating layer 212, the cross-sectional size of the insulating layer 212 is adapted to the cross-sectional size of the socket 11, and the connecting plug 21 is also provided with a fastening shell 22, there is a gap between the fastening shell 22 and the connecting plug 21, the size of the gap is adapted to the wall thickness between the socket 11 and the surface of the power access port 1, the power access port 1 is respectively provided with card holes 13 on both sides, and the fastening shell 22 is respectively provided with fixing protrusions 221 at the corresponding positions of each card hole 13, when the power output port 2 is connected to the power access port 1, the fixing protrusion 221 is embedded in the card hole 13;

[0026] The function of the insulating layer is as follows: the outer side of the second conductive contact 211 and the arc guide is wrapped by the insulating layer 212, which plays a role of electrical isolation, preventing the conductive part from directly contacting the external environment, thereby reducing the risk of electric shock. At the same time, the insulating layer 212 is also designed to adapt to the cross-sectional size of the socket 11, ensuring a tight fit between the insertion end and the socket.

[0027] The protruding design of the conductive contact has the following function: the side of the second conductive contact 211 facing the first conductive contact 12 and the side of the straight portion facing the first conductive contact 12 both protrude from the surface of the insulating layer 212. This design ensures that when the insertion end is inserted into the socket, effective electrical contact can be achieved between the conductive contacts.

[0028] The function of the fastening shell is as follows: the fastening shell 22 is provided outside the connecting strip 21, and there is a gap between the fastening shell and the connecting strip, and the size of the gap is adapted to the wall thickness of the surface of the socket to the power access port. This enables the fastening shell to fit tightly to the surface of the power access port after the insertion end is inserted into the socket, thereby enhancing the stability of the connection.

[0029] The function of the clamping hole and the fixing protrusion is as follows: clamping holes are provided on both sides of the power access port, and fixing protrusions are provided at corresponding positions in the fastening shell. When the power output port is connected to the power access port, the fixing protrusion is embedded in the clamping hole, achieving a firm connection and preventing loosening or falling off due to vibration or external force.

[0030] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope covered by the present invention.

Claims

1. A device for preventing arcing of conductive contacts of a power supply, characterized in that: It comprises a power supply input port (1) installed at an external circuit interface and a power supply output port (2) installed at an internal output end of a power supply, and when the power supply input port (1) is connected to the power supply output port (2), current conduction is formed; The surface of the power output port (2) is provided with a plurality of insertion ends for inserting into the power input port (1), and the surface of the power input port (1) is provided with sockets (11) corresponding to the insertion ends. When the insertion ends are inserted into the sockets (11) and abut against first conductive contacts (12) provided in the sockets (11), current conduction is achieved between the power input port (1) and the power output port (2); The surface of the first conductive contact (12) is an arc-shaped structure, and corresponding grooves are provided at corresponding positions of the insertion end and the first conductive contact (12); The insertion end comprises a connecting plug (21), a second conductive contact (211) abutting against the first conductive contact (12) being provided at the end of the connecting plug (21), a groove corresponding to the insertion end and the first conductive contact (12) being provided on a side of the second conductive contact (211) facing the first conductive contact (12), an arc guide portion being provided at an edge of one end of the second conductive contact (211) facing the first conductive contact (12), the arc guide portion being composed of a straight portion and a bent portion, the bent portion being connected to the second conductive contact (211) via the straight portion, the straight portion forming a bending angle with the second conductive contact (211) and the connecting end of the bent portion; The bent portion is bent in the direction of the connecting strip (21); The outer sides of the second conductive contact (211) and the arc guide portion are wrapped with an insulating layer (212); the side of the second conductive contact (211) facing the first conductive contact (12) and the side of the straight portion facing the first conductive contact (12) both protrude from the surface of the insulating layer (212); and the cross-sectional dimensions of the insulating layer (212) are compatible with the cross-sectional dimensions of the socket (11); A fastening shell (22) is also provided outside the connecting plug strip (21); a gap exists between the fastening shell (22) and the connecting plug strip (21); the size of the gap matches the wall thickness between the socket (11) and the surface of the power access port (1); clamping holes (13) are respectively provided on both sides of the power access port (1); fixing protrusions (221) are respectively provided in the fastening shell (22) at positions corresponding to the clamping holes (13); when the power output port (2) is connected to the power access port (1), the fixing protrusions (221) are embedded in the clamping holes (13).

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