Large-current sparkproof DC (Direct Current) plug

Abstract

The utility model discloses a large-current spark-proof DC direct-current plug, which comprises an insulating support body, a cavity arranged in the middle of the insulating support body, an anode sleeve sleeved inside the cavity, a slot arranged in the middle of the anode sleeve, an outer folding opening arranged at one end of the anode sleeve, and an integrated arc-shaped pole piece fixedly connected with the other end of the anode sleeve. According to the utility model, the cavity is arranged in the middle of the insulating support body, the positive pole sleeve is sleeved in the cavity, and the outer folding opening is arranged at one end of the cavity, so that when the plug is plugged with the socket, the positive pole of the socket can be smoothly inserted into the positive pole sleeve; the positive pole of the socket can be stably inserted into the positive pole sleeve in an attached mode and is stably wrapped, so that electric arcs and sparks are effectively prevented in the large-current transmission process, the contact stability and safety are remarkably improved, the positive pole sleeve is connected with the arc-shaped groove of the insulation supporting body in an inserted mode, and the plug can be conveniently and rapidly assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of DC plugs, in particular to a large-current arc-proof DC plug. Background Technique

[0002] In modern electronic devices and power systems, DC plugs, as important components for power connection, are widely used in various devices and systems. However, during the transmission of large currents, traditional DC plugs are prone to generate arcs and sparks, resulting in unstable contacts and even potential safety hazards such as fires. In addition, the design of traditional plugs also has deficiencies in dust and water protection performance, easily causing dust accumulation or water ingress inside the plugs, thereby affecting their service life and performance. Therefore, there is high practicality in designing a DC plug that can effectively prevent arcs and sparks during large-current transmission and has good dust and water protection performance. Content of the Utility Model

[0003] The purpose of the utility model is to provide a large-current arc-proof DC plug to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A large-current arc-proof DC plug includes an insulating support body. A cavity is provided in the middle of the insulating support body. A positive electrode sleeve is sleeved inside the cavity. A slot is provided in the middle of the positive electrode sleeve. An outer folded edge is provided at one end of the positive electrode sleeve. An integrated arc-shaped electrode piece is fixedly connected to the other end of the positive electrode sleeve. The arc-shaped electrode piece is inserted into an arc-shaped groove provided on the insulating support body. A negative electrode sleeve is sleeved outside the insulating support body. A dust and water protection gasket is sleeved inside one end of the negative electrode sleeve. An insulating rubber ring is also sleeved at the end of one end of the negative electrode sleeve.

[0005] As a preferred solution of the utility model: The width of the slot is smaller than the thickness of the metal sheet of the positive electrode sleeve.

[0006] As a preferred solution of the utility model: A rubber handle is fixedly connected to the outside of one end of the insulating support body, and anti-slip lines are provided on the surface of the rubber handle.

[0007] As a preferred solution of the utility model: One end of the negative electrode sleeve is also placed inside the rubber handle, and one end of the negative electrode sleeve is snap-fitted with a groove provided on the surface of the insulating support body through an inward concave portion provided.

[0008] As a preferred embodiment of the present utility model: The arc length of the arc-shaped pole piece of the positive electrode sleeve is greater than half of the circumference of the positive electrode sleeve. A round hole is provided at one end of the arc-shaped pole piece. When the positive electrode sleeve is placed inside the insulating support, one end wall of the cavity and one end of the dustproof and waterproof gasket are in mutual abutment with both ends of the barrel of the positive electrode sleeve.

[0009] As a preferred embodiment of the present utility model: A hole is provided in the middle of the waterproof gasket.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1) In the present utility model, by providing a cavity in the middle of the insulating support and sleeving a positive electrode sleeve inside the cavity, with an outer fold at one end, when the plug is inserted into the socket, the positive electrode column of the socket can be smoothly inserted into the positive electrode sleeve. And there is a slot in the middle of the positive electrode sleeve, so that the positive electrode column of the socket can be stably and fittingly inserted into the positive electrode sleeve and be stably coated, thereby effectively preventing the generation of electric arcs and sparks during the large-current transmission process, significantly improving the stability and safety of the contact. The positive electrode sleeve is inserted into the arc-shaped groove of the insulating support, enabling the plug to be conveniently assembled;

[0012] 2) In the present utility model, by sleeving a dustproof and waterproof gasket inside one end of the negative electrode sleeve and sleeving an insulating rubber ring at one end of the negative electrode sleeve, the dustproof and waterproof performance of the plug is effectively improved, effectively ensuring the service life of the plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural view of the present utility model;

[0014] Figure 2 is a schematic sectional view of the present utility model;

[0015] Figure 3 is a schematic exploded view of the present utility model;

[0016] Figure 4 is a schematic structural view of the positive electrode sleeve of the present utility model;

[0017] Figure 5 is one of the schematic structural views of the positive electrode sleeve of the present utility model;

[0018] Figure 6 is a schematic structural view of Embodiment 2 of the present utility model.

[0019] In the figure: 100, insulating support; 110, cavity; 120, rubber handle; 121, anti-slip pattern; 130, groove; 140, arc-shaped groove; 150, circular groove; 200, positive electrode sleeve; 210, slotted opening; 220, outer folded edge; 230, arc-shaped electrode plate; 231, round hole; 300, negative electrode sleeve; 310, waterproof gasket; 311, hole; 320, insulating rubber ring; 321, annular groove; 322, riveting point; 330, concave part. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Embodiment 1

[0022] Please refer to Figures 1-5 , the present invention provides a technical solution: a DC DC plug with large current and fire prevention of sparks, including an insulating support 100. A cavity 110 is provided in the middle of the insulating support 100. A positive electrode sleeve 200 is sleeved inside the cavity 110. A slotted opening 210 is provided in the middle of the positive electrode sleeve 200. An outer folded edge 220 is provided at one end of the positive electrode sleeve 200. An integral arc-shaped electrode plate 230 is fixedly connected to the other end of the positive electrode sleeve 200. The arc-shaped electrode plate 230 is inserted into the arc-shaped groove 140 provided on the insulating support 100;

[0023] Specifically, during use, the insulating support 100 provides a solid and insulating basic structure, ensuring the overall stability and safety of the plug. The cavity 110 is designed in the middle of the insulating support 100, providing a space for accommodating the positive electrode sleeve 200. Through the provided outer folded edge 220 of the positive electrode sleeve 200, when the plug is inserted into the socket, the positive electrode column of the socket can smoothly insert into the positive electrode sleeve 200. Moreover, the outer folded edge 220 can also increase the elastic performance of the positive electrode sleeve 200, preventing the other end of the positive electrode sleeve 200 from curling or being damaged during use and ensuring the service life of the plug;

[0024] The slotted opening 210 provided in the middle of the positive electrode sleeve 200 enables the positive electrode column of the socket to stably and tightly insert into the positive electrode sleeve 200 and be stably coated, thereby effectively preventing the generation of electric arcs and sparks during the transmission of large currents, significantly improving the stability and safety of contact.

[0025] The positive electrode sleeve 200 is inserted into the arc-shaped groove 140 provided on the insulating support 100 through the provided arc-shaped electrode tab 230. This not only ensures the stability of the positive electrode sleeve 200 within the cavity 110 but also enables convenient assembly of the plug. Moreover, the insertion method of the arc-shaped electrode tab 230 and the arc-shaped groove 140 provides additional mechanical strength, preventing the positive electrode sleeve 200 from shifting or loosening during use, thereby further improving the reliability and safety of the plug.

[0026] In this embodiment, a negative electrode sleeve 300 is sleeved outside the insulating support 100. A dust and waterproof washer 310 is sleeved inside one end of the negative electrode sleeve 300, and an insulating rubber ring 320 is also sleeved at the end of one end of the negative electrode sleeve 300.

[0027] Specifically, by sleeving the negative electrode sleeve 300 outside the insulating support 100, a stable negative electrode connection structure is formed. The provided dust and waterproof washer 310 functions to prevent dust and water from the outside from entering the inside of the negative electrode sleeve 300, thereby protecting the internal electrical connection part and extending the service life of the plug.

[0028] The insulating rubber ring 320 sleeved at the end of the negative electrode sleeve 300 can further enhance the dust and waterproof performance of the plug. The insulating rubber ring 320 not only provides an additional sealing effect but also increases the insulation performance of the plug, preventing current leakage and improving the safety of use.

[0029] In this embodiment: The groove width of the slotted opening 210 is smaller than the thickness of the metal sheet of the positive electrode sleeve 200.

[0030] Specifically, the groove width of the slotted opening 210 is smaller than the thickness of the metal sheet of the positive electrode sleeve 200. While ensuring that the positive electrode sleeve 200 can be sleeved with the positive electrode post of the socket after deformation, it can effectively ensure the structural strength of the positive electrode sleeve 200.

[0031] In this embodiment, a rubber handle 120 is fixedly connected to the outside of one end of the insulating support 100, and anti-slip lines 121 are provided on the surface of the rubber handle 120.

[0032] Specifically, the provided rubber handle 120 facilitates the user to hold the plug. The choice of rubber material not only increases the comfort of holding but also provides a certain insulation effect. The provided anti-slip lines 121 can further improve the stability of the user's grip.

[0033] In this embodiment, one end of the negative electrode sleeve 300 is also placed inside the rubber handle 120, and one end of the negative electrode sleeve 300 is snap-fitted with the groove 130 provided on the surface of the insulating support 100 through the provided concave portion 330.

[0034] Specifically, one end of the negative electrode sleeve 300 is engaged with the groove 130 provided on the surface of the insulating support 100 through the provided concave portion 330. The engagement connection provides an additional mechanical fixing effect, preventing the negative electrode sleeve 300 from being displaced or loosened during use, thereby further improving the stability and safety of the plug.

[0035] In this embodiment, the arc length of the arc-shaped pole piece 230 of the positive electrode sleeve 200 is greater than half of the circumference of the positive electrode sleeve 200. A round hole 231 is provided at one end of the arc-shaped pole piece 230. When the positive electrode sleeve 200 is placed inside the insulating support 100, one end wall of the cavity 110 and one end of the dust and waterproof gasket 310 are in contact with both ends of the cylinder body of the positive electrode sleeve 200.

[0036] Specifically, the arc length of the arc-shaped pole piece 230 of the positive electrode sleeve 200 is also greater than half of the circumference of the positive electrode sleeve 200, which can effectively enhance the structural strength of the positive electrode sleeve 200. A round hole 231 is provided at one end of the arc-shaped pole piece 230. The provided round hole 231 can be better welded to the wire. There are three slots 210, dividing one end of the positive electrode sleeve 200 into a four-piece elastic sheet structure. When the positive electrode sleeve 200 is placed inside the insulating support 100, it is in contact with the cavity 110 and the dust and waterproof gasket 310, providing a stable mechanical support structure for the positive electrode sleeve 200, ensuring the stability of the positive electrode sleeve 200 in the cavity 110, and also providing an additional sealing effect to prevent external dust and moisture from entering the cavity 110, thereby protecting the positive electrode sleeve 200 and the internal electrical connection part, and extending the service life of the plug.

[0037] In this embodiment, a hole 311 is provided in the middle of the waterproof gasket 310.

[0038] Specifically, the provided hole 311 enables the internal electrical connection part of the plug to pass through smoothly, while maintaining the sealing effect of the waterproof gasket 310, preventing external dust and moisture from entering the plug through the hole 311, thereby protecting the internal electrical connection part and extending the service life of the plug.

[0039] Embodiment 2

[0040] Please refer to Figure 6, the technical features that distinguish this embodiment from Embodiment 1 are as follows: a circular groove 150 is provided at the other end of the insulating support 100, and one end of the waterproof gasket 310 is sleeved outside the circular groove 150 to achieve the installation of the waterproof gasket 310, which can further prevent external dust and moisture from entering the interior of the cavity 110. To further increase the connection strength between the insulating rubber ring 320 and the negative electrode sleeve 300, an annular groove 321 is provided at one end of the insulating rubber ring 320. When the insulating rubber ring 320 is sleeved with the negative electrode sleeve 300, the surface of the negative electrode sleeve 300 is riveted with the annular groove 321 through the provided concave riveting points 322, which can prevent the insulating rubber ring 320 from detaching from the negative electrode sleeve 300.

[0041] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A large-current spark-proof DC plug, comprising an insulating support (100), characterized in that: A cavity (110) is provided in the middle of the insulating support (100). A positive electrode sleeve (200) is sleeved inside the cavity (110). A slot (210) is provided in the middle of the positive electrode sleeve (200). An outer folded edge (220) is provided at one end of the positive electrode sleeve (200). An integrated arc-shaped electrode plate (230) is fixedly connected to the other end of the positive electrode sleeve (200). The arc-shaped electrode plate (230) is inserted into an arc-shaped groove (140) provided on the insulating support (100). A negative electrode sleeve (300) is sleeved outside the insulating support (100). A dustproof and waterproof gasket (310) is sleeved inside one end of the negative electrode sleeve (300). An insulating rubber ring (320) is also sleeved at the end of one end of the negative electrode sleeve (300).

2. The DC DC plug with large current and anti-spark according to claim 1, characterized in that: The width of the slot (210) is smaller than the thickness of the metal sheet of the positive electrode sleeve (200).

3. A large-current spark-proof DC plug according to claim 1, characterized in that: A rubber handle (120) is fixedly connected to the outside of one end of the insulating support (100), and anti-slip lines (121) are provided on the surface of the rubber handle (120).

4. A large-current spark-proof DC plug according to claim 1, characterized in that: One end of the negative electrode sleeve (300) is also placed inside the rubber handle (120), and one end of the negative electrode sleeve (300) is snap-fitted with a groove (130) provided on the surface of the insulating support (100) through a provided concave portion (330).

5. A large-current spark-proof DC plug according to claim 1, characterized in that: The arc length of the arc-shaped electrode plate (230) of the positive electrode sleeve (200) is greater than half of the circumference of the positive electrode sleeve (200). A round hole (231) is provided at one end of the arc-shaped electrode plate (230). When the positive electrode sleeve (200) is placed inside the insulating support (100), one end wall of the cavity (110) and one end of the dustproof and waterproof gasket (310) are in contact with both ends of the cylinder body of the positive electrode sleeve (200).

6. The DC DC plug with large current and spark prevention according to claim 1, characterized in that: A hole (311) is provided in the middle of the waterproof gasket (310).

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