Electric arc prevention safety MC plug

Abstract

The utility model belongs to the technical field of electrical connection equipment, and particularly relates to an arc-proof safety MC plug, which comprises a first connection plug and a second connection plug, a first metal connection point is mounted at the front end of the first connection plug, and a second metal connection point is mounted at the rear end of the second connection plug. The front end of the first connecting plug makes contact with the rear end of the second connecting plug, the first metal connecting point is connected with the second metal connecting point, arc-preventing side plates are installed on the two sides of the first connecting plug, a lock key plate is slidably connected to the upper end of the first connecting plug, and stress springs are connected between the two ends of the lock key plate and the arc-preventing side plates on the two sides respectively. According to the utility model, through the cooperation of the arc-preventing side plate and the key-locking plate, the arc is effectively blocked, the arc is prevented from hurting people or causing safety accidents, and the arc-preventing side plate is made of a high-strength insulating material, so that the impact of high voltage and strong current can be withstood, the service life of the arc-preventing side plate is prolonged, the service life of the arc-preventing side plate is prolonged, and the service life of the arc-preventing side plate is prolonged. And the safety of the device is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connection equipment technology, and in particular relates to an arc-proof safety MC plug. Background Technology

[0002] In modern electrical systems, electrical connection devices are an indispensable component, especially in new energy power projects, industrial automation, and various power projects that require extended lines, where their importance is increasingly prominent.

[0003] However, traditional electrical connection devices pose numerous safety hazards during use, one of the most prominent being the generation of electric arcs. An electric arc is a gas discharge phenomenon; when the voltage between two electrodes exceeds a certain threshold, gas molecules are ionized, forming a conductive plasma channel, thus generating an electric arc. In electrical connection devices, especially at the moment of plugging or unplugging, the rapid change in electric field strength easily ionizes gas molecules, leading to the generation of an electric arc.

[0004] The temperature of an electric arc is extremely high, reaching thousands of degrees Celsius. Its intense light and heat can damage the connection device itself, such as burning contacts and damaging insulation materials, and pose a serious threat to operators, potentially even causing fires and other safety accidents. Furthermore, traditional electrical connection devices are inadequate in terms of waterproofing and moisture resistance.

[0005] In humid environments, moisture and humidity can easily penetrate the internal components of the connection devices, leading to problems such as short circuits and insulation aging, further reducing the safety and reliability of the equipment. For example, in the series connection of photovoltaic modules, due to the high voltage and the frequent need for outdoor operation, the probability of electric arcing increases significantly, and waterproofing and moisture-proofing become particularly important issues.

[0006] This utility model designs an arc-proof safety MC plug to solve the above problems. Utility Model Content

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An arc-proof safety MC plug includes a first connector and a second connector. The first connector has a first metal connection point installed at its front end and a second metal connection point installed at its rear end. The front end of the first connector contacts the rear end of the second connector, and the first metal connection point is connected to the second metal connection point. Arc-proof side plates are installed on both sides of the first connector. A locking plate is slidably connected to the upper end of the first connector. Stress springs are connected between the two ends of the locking plate and the arc-proof side plates on both sides. A limit groove is provided at the upper end of the second connector, and the front end of the locking plate extends into the limit groove.

[0009] As a preferred embodiment, a fixing plate is installed inside the first connector plug. The upper end of the fixing plate is provided with a first slot and a second slot distributed front and back, respectively. The lower end of the locking plate is provided with a first ridge and a second ridge distributed front and back, respectively. Several springs are provided between the lower end of the fixing plate and the inner wall of the first connector plug.

[0010] As a preferred embodiment, the front end of the locking plate is provided with a downwardly extending fixing protrusion, and the front end of the limiting groove is provided with a fixing groove that matches the fixing protrusion.

[0011] As a preferred embodiment, the distance between the first protrusion and the second protrusion is smaller than the distance between the first slot and the second slot, the cross-sections of the first slot and the second slot are arc-shaped, and the cross-sections of the first protrusion and the second protrusion are arc-shaped.

[0012] As a preferred option, the upper end of the key plate is provided with friction protrusions.

[0013] As a preferred embodiment, a first terminal block is installed inside the first connector plug. The first terminal block passes through the fixing plate, the front end of the first terminal block is connected to the first metal connection point, the rear end of the first terminal block extends to the rear side of the first connector plug, and a first insulating lock nut is installed at the rear end of the first terminal block, which is in close contact with the outer wall of the rear end of the first connector plug.

[0014] As a preferred embodiment, a second terminal block is installed inside the second connector plug. The rear end of the second terminal block is connected to the second metal connection point, and the front end of the second terminal block extends to the front side of the second connector plug. A second insulating lock nut is installed at the front end of the second terminal block, which is in close contact with the outer wall of the front end of the second connector plug.

[0015] As a preferred embodiment, the outer end of the second connector is mounted on a waterproof cover, and mounting grooves are provided on both sides of the second connector, with the two ends of the waterproof cover connected to the mounting grooves on both sides respectively.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model effectively blocks electric arcs by combining the anti-arc side plate and the key plate, preventing electric arcs from injuring people or causing safety accidents. The anti-arc side plate is made of high-strength insulating material, which can withstand the impact of high voltage and strong current, ensuring the safety of the device.

[0018] 2. The design of the locking plate of this utility model ensures a stable connection between the first connector and the second connector, prevents the first connector and the second connector from accidentally separating, and the stress spring of the fixing plate provides buffering to offset the vibration or tensile stress of the external cable and protect the equipment from external damage.

[0019] 3. The first and second connector housings of this utility model adopt a sealed design, while the first insulating lock nut, the second insulating lock nut, and the rain cover further enhance the waterproof and moisture-proof performance, ensuring the reliability of the device in a humid environment and preventing short circuits and insulation aging problems caused by moisture and humidity intrusion.

[0020] 4. The shapes of the first and second connecting plugs of this utility model can be customized according to the application scenario and customer needs to meet the connection requirements of different devices. It is applicable to new energy power projects, industrial automation and various power projects that require line extension. It effectively solves the problem that existing electrical connection equipment is prone to arcing under high voltage and high current environments. At the same time, it enhances the waterproof and moisture-proof performance and connection stability of the equipment, and significantly improves the safety and reliability of electrical connection devices in harsh environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the first connecting plug of this utility model.

[0023] Figure 3 This is a schematic diagram of the interior of the first connector plug of this utility model.

[0024] Figure 4 This is a schematic diagram of the key lock plate of this utility model.

[0025] Figure 5 This is a schematic diagram of the fixing plate of this utility model.

[0026] Figure 6 This is a schematic diagram of the key lock plate of this utility model.

[0027] Figure 7 This is a front view schematic diagram of the key lock plate of this utility model.

[0028] The labels in the diagram are as follows: 1. First connector plug; 2. Second connector plug; 3. First metal connection point; 4. Second metal connection point; 5. Anti-arc side plate; 6. Locking key plate; 7. Stress spring; 8. Limiting groove; 9. Fixing plate; 10. First slot; 11. Second slot; 12. First protrusion; 13. Second protrusion; 14. Spring; 15. Fixing protrusion; 16. Fixing groove; 17. Friction protrusion; 18. First terminal; 19. First insulating lock nut; 20. Second terminal; 21. Second insulating lock nut; 22. Waterproof cover; 23. Mounting groove. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] An arc-proof safety MC plug, such as Figures 1 to 7 As shown, it includes a first connector 1 and a second connector 2. The front end of the first connector 1 is equipped with a first metal connection point 3, and the rear end of the second connector 2 is equipped with a second metal connection point 4. The front end of the first connector 1 contacts the rear end of the second connector 2, and the first metal connection point 3 is connected to the second metal connection point 4. Anti-arc side plates 5 are installed on both sides of the first connector 1. A locking plate 6 is slidably connected to the upper end of the first connector 1. Stress springs 7 are connected between the two ends of the locking plate 6 and the anti-arc side plates 5 on both sides. A limit groove 8 is provided at the upper end of the second connector 2, and the front end of the locking plate 6 extends into the limit groove 8.

[0031] The push-pull lock key plate 6 can control the opening or closing of the anti-arc side plate 5. When the anti-arc side plate 5 is closed, a closed protective space is formed inside the first connecting plug 1, which can effectively block the arc and prevent the arc from injuring people or causing safety accidents. In addition, the anti-arc side plate 5 is made of high-strength insulating material, which can withstand the impact of high voltage and strong current, ensuring the safety of the device.

[0032] The locking plate 6 can only move along the front-back direction on the first connector 1. The shape of the upper surface of the first connector 1 can limit the maximum distance that the locking plate 6 can move backward. Therefore, the locking plate 6 can only be separated from the first connector 1 when it moves forward.

[0033] like Figure 1 As shown, a fixing plate 9 is installed inside the first connector 1. The upper end of the fixing plate 9 is provided with a first slot 10 and a second slot 11 distributed in the front and back respectively. The lower end of the locking plate 6 is provided with a first protrusion 12 and a second protrusion 13 distributed in the front and back respectively. Four springs 14 are provided between the lower end of the fixing plate 9 and the inner wall of the first connector 1.

[0034] The distance between the first protrusion 12 and the second protrusion 13 is less than the distance between the first slot 10 and the second slot 11. The cross-sections of the first slot 10 and the second slot 11 are arc-shaped, and the cross-sections of the first protrusion 12 and the second protrusion 13 are arc-shaped.

[0035] The front end of the key plate 6 is provided with a downwardly extending fixing protrusion 15, the front end of the limiting groove 8 is provided with a fixing groove 16 that matches the fixing protrusion 15, and the upper end of the key plate 6 is provided with a friction protrusion 17.

[0036] When the locking plate 6 moves forward, the first protrusion 12 on the locking plate 6 can be engaged in the first slot 10 on the fixing plate 9, thereby fixing the positional relationship between the locking plate 6 and the first connecting plug 1. At this time, the fixing protrusion 15 on the locking plate 6 is also engaged in the fixing groove 16 of the second connecting plug 2, thereby fixing the positional relationship between the locking plate 6 and the second connecting plug 2, achieving a stable connection between the first connecting plug 1 and the second connecting plug 2, and preventing the first connecting plug 1 and the second connecting plug 2 from being accidentally separated.

[0037] At the same time, the forward movement of the key plate 6 can control the closing of the anti-arc side plate 5.

[0038] When the locking plate 6 moves to the rear, the first protrusion 12 separates from the first slot 10, the fixing protrusion 15 separates from the fixing groove 16, and the second protrusion 13 on the locking plate 6 can be inserted into the second slot 11 on the fixing plate 9 to fix the positional relationship between the locking plate 6 and the first connecting plug 1. In this state, the locking plate 6 separates from the second connecting plug 2, and the separation of the first connecting plug 1 and the second connecting plug 2 can be freely controlled.

[0039] At the same time, the backward movement of the key plate 6 can control the unfolding of the anti-arc side plate 5.

[0040] Furthermore, the stress spring 7 of the fixed plate 9 provides cushioning to counteract the vibration or tensile stress of the external cable and protect the equipment from external damage.

[0041] The first connector 1 is equipped with a first terminal 18, which passes through the fixing plate 9. The front end of the first terminal 18 is connected to the first metal connection point 3, and the rear end of the first terminal 18 extends to the rear side of the first connector 1. A first insulating lock nut 19 is installed at the rear end of the first terminal 18, which is close to the outer wall of the rear end of the first connector 1.

[0042] The second connector 2 is equipped with a second terminal 20. The rear end of the second terminal 20 is connected to the second metal connection point 4. The front end of the second terminal 20 extends to the front side of the second connector 2, and a second insulating lock nut 21 is installed at the front end of the second terminal 20, which is close to the outer wall of the front end of the second connector 2.

[0043] The first insulating lock nut 19 and the second insulating lock nut 21 are made of ordinary insulating materials and are installed at the inlet end of the first connector 1 and the outlet end of the second connector 2 to prevent moisture and humidity from entering the interior of the first connector 1 and the second connector 2, thus avoiding short circuits and aging problems.

[0044] The outer end of the second connector 2 is installed on the waterproof cover 22. The second connector 2 has mounting grooves 23 on both sides, and the two ends of the waterproof cover 22 are connected to the mounting grooves 23 on both sides.

[0045] The rain cover 22 can effectively prevent rainwater and moisture from entering the connection between the first connector 1 and the second connector 2, further enhancing its waterproof and moisture-proof performance.

[0046] The housings of the first connector 1 and the second connector 2 are designed with a sealed seal, while the first insulating lock nut 19, the second insulating lock nut 21, and the rain cover further enhance the waterproof and moisture-proof performance, ensuring the reliability of the device in humid environments and preventing short circuits and insulation aging problems caused by moisture and humidity intrusion.

[0047] The shapes of the first connector 1 and the second connector 2 can be customized according to application scenarios and customer needs to meet the connection requirements of different devices. They are suitable for new energy power projects, industrial automation, and various power projects requiring extended lines. This effectively solves the problem of arcing in existing electrical connection equipment under high voltage and high current environments, while also enhancing the waterproof and moisture-proof performance and connection stability of the equipment, significantly improving electrical safety.

[0048] Performance testing methods for this equipment:

[0049] 1. Arc test: Perform insertion and removal operations under high voltage and high current conditions to observe whether the anti-arc side plate 5 can effectively block the arc.

[0050] 2. Waterproof and moisture-proof test: Place the equipment in a humid environment and observe whether moisture or humidity can penetrate it.

[0051] 3. Connection stability test: Perform multiple plug-in and unplug operations to observe whether the first connector 1 and the second connector 2 can be stably connected and whether the locking plate 6 can be effectively fixed.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An arc-proof safety MC plug, characterized by: It includes a first connector (1) and a second connector (2). The first connector (1) has a first metal connection point (3) installed at its front end and a second metal connection point (4) installed at its rear end. The front end of the first connector (1) contacts the rear end of the second connector (2). The first metal connection point (3) is connected to the second metal connection point (4). Anti-arc side plates (5) are installed on both sides of the first connector (1). A locking plate (6) is slidably connected to the upper end of the first connector (1). Stress springs (7) are connected between the two ends of the locking plate (6) and the anti-arc side plates (5) on both sides. A limit groove (8) is provided at the upper end of the second connector (2). The front end of the locking plate (6) extends into the limit groove (8).

2. The anti-arc safety MC plug according to claim 1, wherein: A fixing plate (9) is installed inside the first connector (1). The upper end of the fixing plate (9) is provided with a first slot (10) and a second slot (11) distributed in front and back. The lower end of the locking plate (6) is provided with a first protrusion (12) and a second protrusion (13) distributed in front and back. Several springs (14) are provided between the lower end of the fixing plate (9) and the inner wall of the first connector (1).

3. The anti-arc safety MC plug according to claim 2, wherein: The front end of the locking plate (6) is provided with a downwardly extending fixing protrusion (15), and the front end of the limiting groove (8) is provided with a fixing groove (16) that matches the fixing protrusion (15).

4. The anti-arc safety MC plug of claim 2, wherein: The distance between the first protrusion (12) and the second protrusion (13) is less than the distance between the first slot (10) and the second slot (11). The cross-sections of the first slot (10) and the second slot (11) are arc-shaped, and the cross-sections of the first protrusion (12) and the second protrusion (13) are arc-shaped.

5. The anti-arc safety MC plug according to claim 1, wherein: The upper end of the key plate (6) is provided with a friction protrusion (17).

6. The anti-arc safety MC plug of claim 1, wherein: The first connector (1) is equipped with a first terminal (18), which passes through the fixing plate (9). The front end of the first terminal (18) is connected to the first metal connection point (3), and the rear end of the first terminal (18) extends to the rear side of the first connector (1). The rear end of the first terminal (18) is equipped with a first insulating lock nut (19) that is close to the outer wall of the rear end of the first connector (1).

7. The anti-arc safety MC plug of claim 1, wherein: The second connector (2) is equipped with a second terminal (20), the rear end of the second terminal (20) is connected to the second metal connection point (4), the front end of the second terminal (20) extends to the front side of the second connector (2), and the front end of the second terminal (20) is equipped with a second insulating lock nut (21) that is close to the outer wall of the front end of the second connector (2).

8. The anti-arc safety MC plug of claim 1, wherein: The outer end of the second connector (2) is installed with the waterproof cover (22). The second connector (2) has mounting grooves (23) on both sides. The two ends of the waterproof cover (22) are connected to the mounting grooves (23) on both sides.

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