Quick release photovoltaic mc4 plug glove

Abstract

This invention relates to the field of photovoltaic construction tools, specifically a glove for quickly disassembling photovoltaic MC4 plugs. Insulating beads are fixedly installed on the thumb and index finger pads of the glove body. The glove body has a three-layer composite structure, consisting of an inner layer, a middle layer, and an outer layer from the inside out. The insulating beads are made of insulating silicone and have an arc-shaped protrusion at the top. When it is necessary to disassemble two connected MC4 plug bodies, the glove-wearing hand naturally pinches the MC4 plug body to be pulled out with the thumb and index finger. At this time, the insulating beads located on the thumb and index finger pads precisely press against the latches on both sides of the plug. With a slight pinch, the arc-shaped protrusions of the insulating beads press the latches into the unlocked position, while the insulating protrusions on the glove fingers provide additional gripping force. The plug can then be easily pulled out from the mating end, completing the quick disassembly. The three-layer structure of the glove body provides comprehensive protection, and the insulation properties ensure operational safety.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic construction tools, specifically a glove for quickly disassembling a photovoltaic MC4 plug. Background Technology

[0002] The MC4 plug is a core component for circuit connections between photovoltaic modules, as well as between the module and the combiner box and inverter. It features waterproofing, corrosion resistance, and stable connection, and is widely used in various photovoltaic power plants. During the installation, operation, maintenance, and module replacement of photovoltaic power plants, the disassembly and reassembly of the MC4 plug are frequent operations. Its connection structure includes a hook-type latch; the hook must be pressed to release the lock before the plug can be separated from the socket.

[0003] Currently, photovoltaic maintenance personnel need to use regular insulating gloves to disassemble the MC4 plug to prevent electric shock.

[0004] When using conventional insulating gloves to disassemble MC plugs, the gloves only provide protection against electric shock and lack a dedicated force-generating structure for the MC4 plug's barbs. This limits the flexibility of the fingers inside the gloves, resulting in inaccurate pressing and difficulty in applying force. Therefore, a glove for quickly disassembling photovoltaic MC4 plugs is proposed to address these issues. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a glove for quick disassembly of photovoltaic MC4 plugs.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a quick-release photovoltaic MC4 plug glove, including an MC4 plug body, a glove body for quick-release of the MC4 plug body is provided on the outside of the MC4 plug body, insulating beads are fixedly provided on the thumb and index finger pads of the glove body respectively, the glove body is a three-layer composite structure, from the inside to the outside are an inner layer, a middle layer and an outer layer, the insulating beads are insulating silicone, and the top is provided with an arc-shaped protrusion.

[0007] Preferably, the open part of the glove body is sewn with a tightening strap for fixing the glove body to the hand, and the inner side of the tightening strap is provided with a breathable sponge pad to accommodate different wrist sizes.

[0008] Preferably, the finger sleeve of the glove body is fixedly equipped with insulating protrusions for anti-slip purposes, and there are several insulating protrusions, which are distributed in an arc-shaped array on the finger sleeve of the glove body.

[0009] Preferably, the inner layer is a breathable cotton layer, and the inner layer is made of a blend of combed cotton and polyester fiber.

[0010] Preferably, the middle layer is an insulating rubber layer, and the material of the middle layer is nitrile rubber.

[0011] Preferably, the outer layer is a wear-resistant nylon layer, and the outer layer is made of nylon and polyurethane coating, with a diamond-shaped anti-slip texture on the outer surface.

[0012] Preferably, the insulating beads are made of high-strength insulating silicone, and the diameter of the insulating beads is 3.5 mm, with a top arc-shaped protrusion radius of 1.2 mm.

[0013] Preferably, the insulating beads are integrally formed and fixed with the outer layer through a vulcanization process.

[0014] The advantages of this invention are:

[0015] This invention allows one hand, wearing the glove, to naturally pinch the MC4 plug body to be pulled out with the thumb and forefinger. At this time, the insulating beads located on the pads of the thumb and forefinger press against the latches on both sides of the plug. With a little force, the arc-shaped protrusions of the insulating beads press the latches into the unlocked position, while the insulating protrusions on the fingers of the glove provide additional gripping force. Then, the plug can be easily pulled out from the mating end, achieving the effect of quickly disassembling two MC4 plug bodies. This solves the problem that conventional insulating gloves only have the function of preventing electric shock and do not have a special force-generating structure for the barbs of MC4 plugs. The flexibility of the fingers inside the glove is limited, and there are still problems such as inaccurate pressing and difficulty in exerting force. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the glove body structure of the present invention;

[0019] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a partial cross-sectional view of the glove body of the present invention.

[0021] In the diagram: 100, MC4 plug body; 200, glove body; 201, tightening strap; 202, insulating bumps; 203, inner layer; 204, middle layer; 205, outer layer; 300, insulating beads. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0024] This application discloses a quick-release photovoltaic MC4 plug glove, including an MC4 plug body 100. A glove body 200 for quick disassembly of the MC4 plug body 100 is disposed on the outer side of the MC4 plug body 100. Insulating beads 300 are fixedly disposed on the thumb and index finger pads of the glove body 200. The glove body 200 has a three-layer composite structure, consisting of an inner layer 203, a middle layer 204, and an outer layer 205 from the inside out. The insulating beads 300 are made of insulating silicone and have an arc-shaped protrusion at the top. The glove body 200 is a fingerless glove structure, with insulating beads 300 fixedly disposed on the thumb and index finger pads of the glove body 200. The positions of these two insulating beads 300 are precisely designed so that when the operator wears the glove and naturally uses their thumb and index finger to hold the standard MC4 plug body 100, the insulating beads 300... It can automatically align with the mechanical locking recesses on both sides of the MC4 plug body 100; during operation, simply pinch your thumb and forefinger together, and the insulating bead 300 will apply concentrated, vertical downward pressure to the locking mechanism to easily unlock it. Then, you can pull the plug out, achieving quick one-handed operation.

[0025] Reference Figure 2 , Figure 3 and Figure 4The glove body 200 is available in three sizes: S, M, and L. The drawstring 201 is adjustable in diameter from 10-15cm to accommodate different hand sizes for maintenance personnel. The glove body 200 has a drawstring 201 sewn into the open area to secure it to the hand, and the inside of the drawstring 201 has a breathable sponge pad to accommodate different wrist sizes. The glove body 200 features a classic five-finger design. This fingerless structure ensures protection while maximizing finger dexterity and tactile feedback, making it particularly suitable for delicate operations such as disassembling photovoltaic connectors. Considering the differences in hand sizes among maintenance personnel, this glove offers three standard sizes: S, M, and L. The sizing is based on large-scale statistical analysis of hand sizes in the Chinese adult population, ensuring coverage for over 90% of users. Specific sizing parameters are as follows:

[0026] Size S: Palm width 8.0-8.5cm, total glove length 18-19cm

[0027] Size M: Palm width 8.6-9.2cm, total glove length 20-21cm

[0028] Size L: Palm width 9.3-10.0cm, total glove length 22-23cm

[0029] This scientific sizing system ensures a snug fit for operators with different hand shapes, preventing gloves that are too loose or too tight from affecting operational accuracy and comfort. To accommodate different wrist sizes and ensure the gloves do not shift or slip off during operation, a drawstring 201 is sewn onto the open wrist area of ​​the glove body 200. A breathable sponge pad is located on the inside of the drawstring 201, providing a tightening function while enhancing wrist comfort and preventing marks. Several insulating protrusions 202 are fixedly installed on the finger sleeves of the glove body 200 for anti-slip purposes. These protrusions are arranged in an arc-shaped array on the finger sleeves, conforming to the natural curve of the fingers and effectively increasing friction. The insulating protrusions 202 enhance the glove's anti-slip performance when gripping photovoltaic cables, tools, and other objects. The diameter of the drawstring 201 is adjustable from 10-15cm, covering wrist sizes ranging from slender to robust. The adjustment mechanism features a high-strength Velcro design, making it simple and quick to operate, even when wearing gloves. Inside the tightening strap 201, a breathable sponge pad layer approximately 3mm thick is incorporated. This design offers multiple functions: firstly, the sponge's elastic deformation ensures even distribution of tightening force, preventing excessive localized pressure and resulting in marks; secondly, the sponge's porous structure provides excellent breathability, reducing wrist sweating; and finally, the sponge layer acts as a cushion, reducing friction during wrist movement and improving comfort during extended wear. The tightening strap 201 design also considers the need for quick removal in emergencies. While ensuring the gloves are securely fastened during daily use, in case of an accident requiring rapid removal, the operator can quickly pull open the Velcro for removal within one second, complying with safety operating procedures. Densely distributed insulating protrusions 202 are fixedly installed on all finger sleeves of the glove body 200, particularly on the palmar side of the thumb, index, and middle fingers. These raised dots are not randomly arranged, but rather distributed in an arc-shaped array based on ergonomic research, perfectly conforming to the natural curvature of the fingers. Each insulating raised dot 202 is approximately 1.5mm in diameter and 0.8mm in height, with a center-to-center distance of approximately 2.5mm between adjacent raised dots. This size design ensures a significant anti-slip effect while avoiding excessively large raised dots that could affect finger dexterity and tactile sensitivity. The insulating raised dots 202 are made of the same wear-resistant material as the outer layer of the glove and are firmly bonded to the glove body through a hot-pressing process. The surface of the raised dots undergoes special treatment, achieving a coefficient of friction of over 0.6, which increases grip strength by approximately 40% compared to ordinary glove surfaces. When disassembling the MC4 plug, in addition to the thumb and forefinger pressing to unlock, the other fingers need to cooperate in gripping the plug or cable. The insulating raised dots 202 significantly enhance the overall grip stability of the hand, maintaining reliable grip strength even in wet, oily, or dusty conditions, preventing the plug from accidentally slipping out.

[0030] Furthermore, to ensure the glove's protective properties, durability, and ease of use, the glove body 200 is designed with a three-layer composite structure, consisting of an inner layer 203, a middle layer 204, and an outer layer 205 from the inside out.

[0031] The inner layer 203 is a breathable cotton layer made of a blend of combed cotton and polyester fiber, providing excellent moisture-wicking properties to ensure comfort during extended wear and prevent slippage due to sweating during prolonged operation. It is suitable for outdoor high-temperature maintenance scenarios. The breathability of the inner layer 203 is ≥80%, and its moisture-wicking rate is ≤3 seconds. Since the inner layer 203 comes into direct contact with the skin, its design prioritizes wearing comfort and microclimate management. Photovoltaic maintenance work is often carried out in high-temperature outdoor environments, where hands are prone to sweating. Traditional rubber gloves or ordinary work gloves often lead to stuffy and damp hands, affecting comfort and potentially causing skin problems in the long term. The inner layer 203 is made of a 60:40 blend of combed cotton and polyester fiber. The long, even combed cotton fibers provide a soft, skin-friendly feel; polyester fibers enhance the material's strength and durability while offering excellent moisture-wicking properties; the inner layer features a honeycomb-like three-dimensional woven structure, creating tiny airflow channels between the skin and the material, further enhancing breathability. Simultaneously, the inner layer surface undergoes a light napping treatment, improving softness and reducing friction and irritation to the skin.

[0032] The middle layer 204 is an insulating rubber layer, and its material is nitrile rubber. The middle layer 204 provides basic electrical insulation protection while giving the glove body 200 a certain degree of elasticity and overall strength. The breakdown voltage of the nitrile rubber in the middle layer 204 is ≥15kV / mm, and its aging resistance meets the GB / T 1690-2010 standard, satisfying the insulation requirements for low-voltage circuit operation in photovoltaic fields. The middle layer 204 is the safety core of the glove, undertaking the critical function of electrical insulation. Although photovoltaic systems fall under the category of low-voltage DC, safety risks still exist under certain conditions (such as system failures, excessive humidity, etc.). Professional insulation protection is a basic requirement for ensuring the safety of operation and maintenance personnel. After comparative testing of various insulating materials, nitrile rubber was ultimately selected as the middle layer material. Nitrile rubber has excellent electrical insulation properties, oil resistance, and abrasion resistance, while maintaining good flexibility. The thickness of the middle layer was optimized while ensuring insulation performance. The palm area is 0.8mm thick, providing ample insulation; the thickness in the finger and back of hand areas is reduced to 0.5mm, ensuring dexterity and tactile feedback. This differentiated thickness design achieves an optimal balance between safety and flexibility.

[0033] The outer layer 205 is an abrasion-resistant nylon layer that directly contacts the external environment and working equipment. It is made of nylon and polyurethane coating, offering excellent abrasion resistance, scratch resistance, and some stain resistance. To enhance grip, the outer surface of the outer layer 205 features a diamond-shaped anti-slip texture. The outer layer 205, made of nylon and polyurethane coating, has a Shore hardness of 65-70, an abrasion resistance of ≥5000 cycles / level 4, and a coefficient of friction ≥0.6. The outer layer 205 is the first barrier between the glove and the external environment, needing to withstand physical abrasion, chemical contact, and environmental influences. The photovoltaic field environment is complex, potentially involving contact with rough surfaces, sharp edges, ultraviolet radiation, and various cleaning agents. The outer layer uses a high-strength nylon fiber woven base with a polyurethane protective coating. Nylon offers excellent tensile and tear resistance, while the polyurethane coating enhances its abrasion resistance, scratch resistance, and stain resistance. The outer surface features a specially designed diamond-shaped anti-slip texture, which offers multiple advantages: First, the diamond structure provides a uniform coefficient of friction in any direction; second, the texture depth of approximately 0.3mm effectively wicks away sweat and water without trapping dirt; and finally, the texture design increases the visual visibility of the material surface, reflecting the product's professionalism.

[0034] Reference Figure 3 The insulating bead 300 is made of high-strength insulating silicone and has a diameter of 3.5mm. Its top arc-shaped protrusion has a radius of 1.2mm. The insulating bead 300 is made of high-strength, high-elasticity insulating silicone and has a diameter of approximately 3.5mm. An arc-shaped protrusion with a radius of approximately 1.2mm is provided on the top of the insulating bead 300. This arc-shaped protrusion design allows for better embedding into the locking groove of the MC4 plug body 100, increasing the contact area and stability, and preventing slippage during operation. The insulating bead 300 is integrally molded and fixed to the outer layer 205 of the glove body 200 through a vulcanization process, resulting in an extremely strong connection that is not easily detached and ensures overall insulation continuity. The center-to-center distance between the two insulating beads 300 is 12mm, which is suitable for the natural pinching distance of 10-15mm between an adult's thumb and forefinger, ensuring synchronous alignment with the barbs on both sides of the plug.

[0035] Working principle: After the operator wears the glove body 200, when it is necessary to disassemble two connected MC4 plug bodies 100, the operator uses the hand wearing the glove body 200 to naturally pinch the MC4 plug body 100 to be pulled out with the thumb and forefinger. At this time, the insulating beads 300 located on the fingertips of the thumb and forefinger just press against the latches on both sides of the plug. With a little force, the arc-shaped protrusions of the insulating beads 300 will press the latches into the unlocked position. At the same time, the insulating protrusions 202 on the fingers of the glove provide additional gripping force, and then the plug can be easily pulled out from the mating end, completing the quick disassembly. Throughout the process, the three-layer structure of the glove body 200 provides comprehensive protection, and the insulation properties ensure operational safety.

[0036] This application permanently integrates the functions with the glove body 200, eliminating the problems of tool loss, forgetting, and inconvenience in access; at the same time, the glove body 200 is available in three sizes: S / M / L, and the diameter of the tightening strap 201 is adjustable from 10 to 15 cm to accommodate maintenance personnel with different hand shapes.

[0037] Unlocking can be completed with an intuitive, natural grasping motion, resulting in a smooth process that allows for continuous, rapid one-handed operation and significantly improves installation and maintenance efficiency.

[0038] The three-layer composite structure of the glove body 200 provides professional-grade electrical insulation and physical protection while also ensuring comfort during extended work periods. The tightening strap 201 and insulating protrusions 202 further optimize the wearing experience and operational stability.

[0039] The silicone insulating beads, made of 300 material, have moderate hardness and an arc-shaped protrusion design that disperses pressure, minimizing damage to the MC4 plug body's 100 plastic shell and sealing ring, and reducing the risk of equipment damage due to improper operation. At the same time, based on the mature glove manufacturing process upgrade, the main increase is in the cost of molds and silicone parts, but the resulting efficiency improvement and reduction in tool management costs are significant benefits.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A quick-release photovoltaic MC4 plug glove, comprising an MC4 plug body (100), characterized in that: The outer side of the MC4 plug body (100) is provided with a glove body (200) for quick disassembly of the MC4 plug body (100). Insulating beads (300) are fixedly provided at the thumb and index finger positions of the glove body (200). The glove body (200) has a three-layer composite structure, consisting of an inner layer (203), a middle layer (204), and an outer layer (205) from the inside to the outside. The insulating beads (300) are made of insulating silicone and have an arc-shaped protrusion on the top.

2. The quick-release photovoltaic MC4 plug glove according to claim 1, characterized in that: The glove body (200) has an opening sewn with a drawstring (201) for securing the glove body (200) to the hand, and the drawstring (201) has a breathable sponge pad on the inside to accommodate different wrist sizes.

3. The quick-release photovoltaic MC4 plug glove according to claim 2, characterized in that: The glove body (200) has a fixed installation of insulating protrusions (202) for anti-slip on the finger sleeve, and there are several insulating protrusions (202), which are arranged in an arc-shaped array on the finger sleeve of the glove body (200).

4. The quick-release photovoltaic MC4 plug glove according to claim 1, characterized in that: The inner layer (203) is a breathable cotton layer, and the inner layer (203) is made of combed cotton and polyester fiber blend.

5. A quick-release photovoltaic MC4 plug glove according to claim 4, characterized in that: The middle layer (204) is an insulating rubber layer, and the material of the middle layer (204) is nitrile rubber.

6. A quick-release photovoltaic MC4 plug glove according to claim 5, characterized in that: The outer layer (205) is a wear-resistant nylon layer, and the outer layer (205) is made of nylon and polyurethane coating. The outer surface of the outer layer (205) is designed with diamond anti-slip texture.

7. A quick-release photovoltaic MC4 plug glove according to claim 1, characterized in that: The insulating bead (300) is made of high-strength insulating silicone, and the diameter of the insulating bead (300) is 3.5mm, and the radius of its top arc protrusion is 1.2mm.

8. A quick-release photovoltaic MC4 plug glove according to claim 7, characterized in that: The insulating beads (300) are integrally formed and fixed with the outer layer (205) through a vulcanization process.

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